[Vulkanen] The ring of fire #5: Het blijft actief

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ECUADOR - Tungurahua volcano

July 8th, 2010
As of the 25th of June, the Instituto Geof�sico-Escuela Polit�cnica Nacional (IG) has reported that Reventador volcano continues presenting/displaying moderate levels of eruptive activity characterized by the occurrence of a small small volcanic dispersion volume and of earthquakes of volcanic origin. A total of 10 seismic movements of long period (LP) were entered, 9 explosions, 2 episodes of spasmodic tremor.
........
Following the explosions one noticed episodes of tremor to which noises and roars were associated type exhalation of median to strong. Sometimes, between clouds it was possible to be observed volcanic gas and aqueous vapour emissions with low loads moderate of ash that went to the West and the Southwest of the volcano. It was received reports of fine ash falls of white colour along with drizzles in Chonglotus, during this behind schedule. Light rains in all the western flank of the volcano without generating lahars or flows of mud were registered. On 2 June a pyroclastic flow traveled 1.5 km down the NW flank. Tungurahua is a steep-sided stratovolcano or a conical volcano composed of many layers of hardened lava, tephra, and volcanic ash and is located near Ecuador's fourth largest city of Ambato, some 140 km south of the capital Quito.

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Due to a SVE fieldtrip, this page will not updated until the 27th of July, sorry for the inconvenient

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Op dinsdag 13 juli 2010 14:52 schreef horned_reaper het volgende:
Is er al meer bekend over Yellowstone?

En de vulkaan in Napoli begint ook al te borellen ?

Zullen wij dan de Generatie zijn die een Vei 7 of Vei 8 uitbarsting mee gaan maken?

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Op dinsdag 13 juli 2010 14:52 schreef horned_reaper het volgende:
Is er al meer bekend over Yellowstone?

En de vulkaan in Napoli begint ook al te borellen ?

Zullen wij dan de Generatie zijn die een Vei 7 of Vei 8 uitbarsting mee gaan maken?

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Op dinsdag 13 juli 2010 21:20 schreef luckyb1rd het volgende:

[..]

yes we gaan weer dood Je zal maar net aan het rukken zijn als een pyroclastische wolk over je heen rolt.. Echt lullig als men je dan 2000 jaar later met je lul in je hand opgraaft..

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Op dinsdag 13 juli 2010 21:41 schreef Daywalk3r het volgende:
Als Yellowstone uitbarst zijn we doomed.

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Op dinsdag 13 juli 2010 21:45 schreef kahaarin het volgende:

[..]

Zeker weten, dan ziet de wereld er voor lange tijd heel anders uit.

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Lake Taupo... a giant timebomb...
Beneath the waters of Lake Taupo lies one of the world's biggest volcanoes and scientists say an eruption would be one of the most life threatening events New Zealand has ever faced.

They say an eruption involving New Zealand's largest lake would dwarf the trouble caused by the 1995 Ruapehu eruption and lahar flows since then.

"Taupo on a global scale is a very large volcano. ]b\The crater is somewhere in the order of 15 and 20 kilometres in diameter[/b], so it's right up there in the top ten globally for size," said volcanologist Brad Scott.

Other experts think it could even eclipse the worldwide disruption caused by the Icelandic volcano three months ago.

"We know that the North Island would be pretty heavily damaged and everything would be affected, basically starting with the airplanes," said volcanologist Nico Fournier.

But scientists say that there will be plenty of warning signs before the big bang including more frequent earthquakes, hot springs around Taupo drying up and the lake could start bubbling.

Fournier says scientists are always on alert, monitoring the lake 24 hours a day, seven days a week.

"We know the volcano is still doing things, but it's not yet fully understood. It's something we're actually doing research on at the moment to see if it really is the volcano acting up a bit," Fournier said.

The Taupo volcanic zone is one of the most active in the world. There are 12 active volcnoes and at least 30 geothermal hot spots that stretch from Mount Ruapehu to White Island.

"We have people living on or playing on those volcanoes almost every day, like the skifields at Ruapehu and the tourism at White Island, so we definitely pay a lot of attention to those in the short term. But we treat the Taupos equally the same," says Scott.

Peter Lechner from the Civil Aviation Authority says in the event of Taupo erupting, shutting airports is dependent on the degree of the volcanic fallout.

"The eruptions we've seen so far not a big problem, if we had a massive eruption out of Taupo, I don't think aviation would be operating much at all," he said.

Phil Parker from the Civil defence says New Zealand is not well prepared to deal with an eruption.

"People may need to self evacuate because we don't have the personnel to evacuate everybody. We rely heavily on people doing it themselves," he says.

Taupo erupts every 900 years on average, and the last big bang was 1700 years ago. Scientists say it's not a matter of if, but when.

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Op vrijdag 16 juli 2010 22:49 schreef Frutsel het volgende:
Niet alleen Yellowstone... er zijn meerdere supervulkanen...zoals Lake Taupo... in Nieuw Zeeland...met een krater van bijna 20km...
[..]

Ook een vulkaan die al 'over tijd' zou zijn... en geen kleintje...

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Op vrijdag 16 juli 2010 22:59 schreef Frutsel het volgende:
True, al zeiden ze ook dat tussen het triggeren van Katla en Eyfrutseljoekel wel een jaar kon zitten...maar dat het dan nog als "triggeren" zou gelden

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Op zaterdag 17 juli 2010 10:45 schreef Light het volgende:

[..]

Een jaar vind ik vrij ruim, ik zou uitgaan van maximaal ongeveer een half jaar. Gemeten vanaf de afloop van de uitbarsting van de Eyjafjallaj�kull.

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Op zaterdag 17 juli 2010 10:45 schreef Light het volgende:

[..]

Een jaar vind ik vrij ruim, ik zou uitgaan van maximaal ongeveer een half jaar. Gemeten vanaf de afloop van de uitbarsting van de Eyjafjallaj�kull.

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Op zondag 18 juli 2010 00:05 schreef Light het volgende:

[..]

Ik reken vanaf het eind van de uitbarsting van Eyjafjallaj�kull.

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Lava from Kilauea Volcano threatens home
Lava oozing from Kilauea Volcano forced the evacuation of a Kalapana couple and their dogs yesterday and closed within 100 yards of their house — one day after the flow crossed the Big Island's Kalapana access road and enveloped the intersection of Highways 130 and 137, sending up a plume of thick, black smoke.

The couple's two-story home is now landlocked by cooling lava as hotter, more destructive lava inches closer, Big Island Civil Defense Director Quince Mento said yesterday.

He declined to speculate on whether the home would be lost. "When you're dealing with Madame Pele, you don't want to take anything for granted," Mento said. "Things change. They can turn on a dime."

At least four other homes are in the area, but none is immediately threatened, said Mento, who has been driving to Kalapana every day to survey the lava's path.

For people who live in Kalapana, volcanic activity is part of daily life. "If you live there," Mento said, "you're aware of the risks."

The owner of the house in immediate danger had been surveying his property every day until county officials urged the couple to evacuate, Mento said.

The homeowners remain upbeat, even though they realize their house could go up in flames.

"It's unfortunate -- you feel very bad for them," Mento said. "But there's always hope that it could stop."

On May 21, Kilauea Volcano saw its 10,000th straight day of activity, making it the world's longest continuously erupting volcano.

Puu Oo -- or Kilauea's east rift zone vent -- started gurgling on Jan. 3, 1983, and a summit vent on Halemaumau Crater has been erupting since March 19, 2008.

Lava began marching onto the Kalapana access road around midnight Saturday, then took out the intersection of Highways 130 and 137 around 7 a.m. Saturday.

A crowd of "well over 1,000" people continues to stand watch 24 hours a day, even though the previous viewing area was destroyed on Saturday.

"It's now under a couple of feet of lava," Mento said.

The U.S. Geological Survey's Hawaiian Volcano Observatory posted photos that show lava burning through thick vegetation and covering about 300 yards of highway asphalt.

Earlier in the week, Jim Kauahikaua, scientist-in-charge at the U.S. Geological Survey's Hawaiian Volcano Observatory, wrote that "a circulating lava pond deep in the collapse pit within the floor of Halemaumau Crater" was visible via webcam, and three earthquakes with magnitudes of 2.9 and 3.0 were recorded below the Big Island.

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Vulkaan Kilauea op Hawa� is al 27 jaar aan het uitbarsten. Sindsdien leven de inwoners van de omringende dorpen voortdurend in angst voor de dreigende lava. Het huis van Gary Sleik was ��n van de eerste slachtoffers van 2010. De man vreesde al drie jaar dat de lava zijn woning zou overspoelen en had zich al neergelegd bij het idee dat dit ooit zou gebeuren. Nu zag hij zijn huis ook echt in de vlammen opgaan.

De huidige uitbarsting begon op 3 januari 1983 en heeft al een pak huizen in de as gelegd

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Scientists predicting Elbrus eruption this century
The highest mountain in Europe, volcano Elbrus might erupt in this century. Scientists arrived at this conclusion following the discovery of a colony of mosses at its peak.

The famous volcano in the Caucasus is over two million years old. Last time, it erupted 15-17 centuries ago. However, it might erupt once again within 50 years. Although scientists cannot say for sure whether this will happen or not, they have monitored post-volcanic activity, says the head of the Elbrus Scientific Research Centre of Moscow State University, Natalya Volodicheva.

“The post-volcanic activity is witnessed by the emission of fumarolic gases and the appearance of thermal springs,” says Natalya Volodicheva. “There are lots of thermal mineral springs around Elbrus the temperatures of which are about 21 degrees Celsius on the northern slope, as well as closed springs in several other places, which are even hotter. Travertine mineral water springs can be seen in several places too. All this is typical for regions where ancient and contemporary volcanoes are located,” Natalya Volodicheva said.

There is a need to study the concentration of emitting aerosol and helium to follow up the possible eruption of the volcano. If this is high, it means the volcano is becoming active. At the same time experts should study glaciations, says Natalya Volodicheva.

“Elbrus is covered with a thick layer of ice,” says Natalya Volodicheva. “However, there are no glaciers in the craters on the peak. The temperature on the eastern peak is very high, and the 20-degree temperature has been recorded at a height of 5,621 meters above sea level. Moreover, moss grows on the cracks of this surface. This is impossible under normal conditions. This means the surface is heating up,” Natalya Volodicheva said.

A group of scientists of the Shternberg Astronomical Institute of Moscow State University headed by Vadim Milyukov is working at the Neutrino Observatory located 25 kilometers away from Elbrus. They are studying the fluctuations of the earth’s crust and changes in the interior magmatic centre located under Elbrus using a laser interferometer. “At present, the upper chamber of the volcano is getting heated,” says Vadim Milyukov.

“Either the chamber is getting heated by itself or it receives hot lava from a deep pocket,” says Vadim Milyukov. “We have developed an advance method to control the volcano and are monitoring the resonance characteristics of its magmatic chamber and studying their rate of changes. All this shows that the volcano is getting heated. However, it is difficult to forecast when the volcano will erupt, there is a high probability that something might happen,” Vadim Milyukov said.

However, the scientist insists that there will be no eruption in the near future. Volcanic activity is always accompanied by earthquakes. The seismic activity is linked to the movements of magma before the eruption of a volcano. At present, this is not taking place under Elbrus.

The eruption of Elbrus poses a great danger. The melted ice and snow might flow as muddy slides from the eastern slope at a speed of 72 kilometers per hour and destroy all settlements on the way and reach the administrative centre of Kabardino-Balkaria, Tyrnyauz, where over 20 thousand people live

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Colombia volcano about to spew

Colombian authorities on Wednesday issued a red alert, the highest level, for the Galeras Volcano, indicating it could erupt at any moment.

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Volcano erupts in Colombia

Colombia's Galeras volcano erupted today, forcing authorities to order the evacuation of thousands, but residents in nearby villages and towns refused and hunkered down in homes, officials said.

Galeras, which has often spewed gas and clouds of gas into the skies in recent years, is located in Colombia's Andes about 500 kilometers south of Bogota near the frontier with Ecuador.

It erupted 10 times last year.

Authorities reported no immediate injuries or damage after the latest eruption. About 8,000 people live in risky areas around the volcano but many often refuse to leave their homes because they are used to frequent activity at the volcano.

"People are obliged to leave, no one can sit around debating over what might occur, even if up until now nothing has happened, we have to remain alert," interior minister German Vargas Lleras told local media.

Colombia's coffee federation had no reports of damage to crops in the area, a federation spokeswoman said. Colombia is the world's top producer of high-quality washed Arabia beans.

In previous eruptions, local residents reported large columns of smoke billowing over the volcano and towns were covered with layers of ash.

"The level of activity in the volcano shifted to red which means an imminent or current eruption," the country's National Geological Institute said in a statement earlier.

The last eruption was in January this year when authorities ordered an evacuation but no one was killed or injured. In 1993, a massive eruption at Galeras killed 10 people just as a scientific mission was examining the crater.

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Op woensdag 25 augustus 2010 16:37 schreef Frutsel het volgende:

[..]

Is ie nou al geploft of was dat een voorwaarschuwinksplofje?

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Op woensdag 25 augustus 2010 16:46 schreef kahaarin het volgende:

[..]

*gezondheid*

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Op woensdag 25 augustus 2010 16:53 schreef Frutsel het volgende:
Ik zei je gister nog: steek eens een vulkaan in de hens.. het is stil

en bedankt!

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Colombians evacuated as Galeras volcano erupts
2hrs 21 mins ago
BOGOTA, Colombia – The Galeras volcano is erupting in southwestern Colombia, forcing scores of people to evacuate from their homes.

Marta Calvache of Colombia's Geology and Mining Institute says a burst of gases, ash and vapor rose from the volcano at about 4 a.m. (0900 GMT) on Wednesday. The mountain's peak is 14,029 feet (4,276 meters) above sea level.

Carlos Ivan Marquez of the Colombian Red Cross says 278 people have evacuated from the area around the volcano.

He says so far there are no reports of damage.

*Je post PM's trouwens! Lol, bij deze dan toestemming. *

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Op woensdag 25 augustus 2010 17:00 schreef Frutsel het volgende:
LOL
jij verklapt het

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2010 eruption
The volcano erupted on January 3, 2010, forcing the evacuation of 8,000 people[15]. This is the 10th such eruption of the volcano in the past year, and the first of 2010. Colombian authorities also stated that it could remain volatile in the weeks to come.

Galeras erupted again on August 25, 2010 with an ash plume visible in the air. The eruption, which was described as non-explosive, caused authorities to raise an alert for neighboring towns.

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On Wednesday, Colombia's Galeras Volcano continued to spew smoke after an eruption earlier in the day.

Authorities ordered the evacuation of thousands of villagers.

While some residents packed up and headed for protected buildings, many in nearby villages and towns refused and hunkered down in homes.

Galeras, which has often spewed gas clouds into the skies in recent years, is located in Colombia's Andes about 310 miles south of Bogota, near the frontier with Ecuador.

Authorities reported no immediate injuries or damage after the latest eruption.

Around 8,000 people live in risky areas around the volcano but many often refuse to leave their homes because they are used to frequent volcanic activity.

Galeras erupted ten times last year and has now awakened again.

Area volcanologist Diego Gomez says the increased activity makes predictions difficult. Gomez is recommending that people move away from the volcano.

[Diego Gomez, Volcanologist]:
"In this state of instability, the volcano's eruption process can vary. We can't guarantee anything. It's unstable. The eruptions can increase and that's why it's important that people who live in high-risk areas heed the call of authorities and not wait for this to evolve more. It's a call to be reasonable and prevent accidents."

Nonetheless, hundreds of residents in the town of Pasto, which sits at the foot of the volcano, walked placidly through the streets, Wednesday.

Pasto-resident, Baby Munoz, says locals are used to the rumbling above.

[Baby Munoz, Pasto-Resident]:
"I woke up my daughter and went out to look at the volcano and it wasn't doing anything. You couldn't see anything and everyone was calm. It always scares us but never does anything.”

In 1993, a massive eruption at Galeras killed ten people, just as scientist were examining the crater.
With the volcano's volatile history in mind, Mirian Maya and her family took a more cautious route, moving to refugee camps set up to get people out of harm's way.

[Mirian Maya, Refugee]:
"We're here mostly for safety and because we have young children. That's why we decided to evacuate."

The last eruption was in January this year, when authorities ordered an evacuation. No one was killed or injured.

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Sinabung volcano continues to erupt smoke
Mount Sinabung in regency of Karo in Indonesia's North Sumatra province continued gushing grey smoke on Saturday, blanketing area surrounding its crater, local media reported.

A local resident, Abadinta Barus, told Antara news service that the smoke was less thick than it was on Friday, when seismic activities of the volcano resulted in thundering noises and stirred panic among residents of nearby villages.

"The density of the smoke has far declined, but the smell of sulfur remains strong," he said.

The volcano blew up thick smoke and materials for several hours on Friday, but the authorities dismissed any possibility of eruption, which last occurred in the year 1600.

Despite the absence of evacuation order, hundreds of people fled their villages for safety to their relatives' houses in the neighboring regencies of Kabanjahe and Berastagi.

Dozens of Indonesian Red Cross volunteers and social service agency workers set up on Saturday emergency posts in villages near the volcano. They explained to the local people evacuation procedure if eruption occurred and distributed masks to protect them from respiratory problems.

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Evacuatie na vulkaanuitbarsting Indonesi�

JAKARTA - In Indonesi� zijn twaalfduizend mensen ge�vacueerd, nadat de Sinabung-vulkaan op Sumatra voor het eerst in 400 jaar was uitgebarsten. Dat meldt het Indonesisch vulkaancentrum zondag.

De vulkaan spuwt as en rook tot anderhalve kilometer de lucht in. ''Eerst dachten we dat regen de oorzaak van de rook was, maar het blijkt om magma te gaan'', zei Surono, het hoofd van het vulkaancentrum.

''Het is een gevaarlijke situatie en dus hebben we de waarschuwingen verhoogd naar code rood.''

De as heeft een gebied bedekt tot zo'n 30 kilometer van de vulkaan vandaan. Mensen die wonen in de gevarenzone van 6 kilometer rondom de vulkaan zijn ge�vacueerd.

Veel van de boeren in dorpjes rondom de vulkaan waren direct na de uitbarsting al op de vlucht geslagen voordat het evacuatieprogramma was begonnen.

Ademhalingsproblemen

Er waren geen meldingen van doden of gewonden, maar velen zouden wel kampen met ademhalingsproblemen door het inademen van de dikke rook met zwavel. De mensen die gevlucht zijn hebben zuurstofmaskers gekregen en zijn ondergebracht in tenten. Volgens de lokale autoriteiten is de situatie onder controle.

Indonesi� heeft de hoogste dichtheid van vulkanen ter wereld. Het land is gelegen in de zogenoemde Ring van Vuur, een groot aardbevingsgebied rond de Grote Oceaan. Van de vulkanen zijn er 128 actief en gelden er 65 als gevaarlijk

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Thousands flee Sumatran Volcano
Thousands of Indonesians have been forced to flee after a volcano erupted on the island of Sumatra.

Officials issued a red alert after Mount Sinabung began to spew lava shortly after midnight (1900 GMT).

Smoke and ash reportedly shot 1,500m into the air, and witnesses said they could see lava from the volcano from several miles away.

Mount Sinabung, some 60km (40 miles) south-west of Sumatra's main city Medan, has not erupted for 400 years.

The volcano had been pumping out smoke all day Saturday, but alert levels had not been raised, and local media reported that villagers had been taken by surprise.

The Medan Tribune quoted one local resident as saying he panicked and ran when he saw lava coming towards his him "like a ball of fire".

Priyadi Kardono from Indonesia's National Disaster Management Agency told the BBC that more than 10,000 people were being evacuated from nearby villages.

But he added that some had already gone home as volcanic activity was decreasing.

Surono, head of the nation's volcano disaster alert centre, told AFP news agency that the alert level had been raised to red because the situation was "clearly dangerous".

"Initially we thought the ash and smoke were triggered by rain but now we know the driving pressure was from magma," he said.

The Indonesian archipelago lies on the Pacific "Ring of Fire" and has at least 129 active volcanoes.

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Volcano erupts again
A volcano on the Indonesian island Sumatra that had been dormant for more than four centuries has erupted for the second day in a row.

Mount Sinabung was again spewing out towering clouds of ash on Monday, forcing the evacuation of more than 21,000 people. Some aircraft had to be diverted because of poor visibility.

Villagers living along the slopes of the Sinabung in North Sumatra province have packed up their belongings and headed to emergency shelters, mosques and churches, Andi Arief, a presidential adviser on disasters, said.

Their abandoned homes and crops were blanketed in heavy, grey soot, and the air was thick with the smell of sulphur.

Eruption pattern unknown

Sinabung last erupted in 1600, so observers do not know its eruption pattern and admitted over the weekend that they had not been monitoring it closely before it started rumbling days ago in the lead-up to Sunday's first, less-powerful blast.

The island of Sumatra lies on the fault line of the Eurasian and Pacific tectonic plates that have been pushing against each other for millions of years.

Like other volcanoes along the Sumatra fault line, the Sinabung has the potential to be very destructive, Erick Ridzky, a disaster researcher, said.

A larger blast has the potential to darken skies across the region, he said, affecting air traffic in nearby Singapore and Malaysia.

Already, several domestic flights heading to the provincial capital of Medan had to be diverted, according to Bambang Ervan, spokesman for the transportation ministry.

"The eruptions are very difficult to predict. We don’t have enough data on the volcano," Surono, a government volcanologist who uses only one name, told Al Jazeera.

"We don't know what set it off, how long it will continue or whether we should expect pyroclastic flows or more powerful eruptions."

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Duizenden keren terug, ondanks dreiging
BRASTAGI - Duizenden Indonesi�rs die waren gevlucht voor de uitbarsting van een vulkaan, zijn naar huis teruggekeerd. Functionarissen zeiden echter dat het nog onzeker is of het gevaar echt is geweken.

De vulkaan Sinabung in Noord-Sumatra was, voor het eerst in vierhonderd jaar, uitgebarsten. Een tweede, krachtiger uitbarsting volgde, waardoor pluimen donkergrijze rook en vulkaanas tot 2 kilometer hoogte stegen.

Circa 30.000 mensen waren ge�vacueerd uit nabijgelegen dorpen. ''Tot vandaag zijn ongeveer zevenduizend van hen teruggegaan naar hun dorp'', zei het hoofd van het nationale rampenbestrijdingscentrum, Syamsul Maarif. ''Het is nog te vroeg om te zeggen dat het veilig is. We onderzoeken de situatie nog.''

Kolen en pepers
Ainun Nasution, die dicht bij de vulkaan woont, zei dat ze weer wilde werken op haar akkers met kolen en pepers. ''Ik ben bang dat mijn oogst mislukt door de as'', zei ze.

De vulkaan rookt nog steeds, maar de pluimen zijn kleiner dan de vorige dagen. De kleur is bovendien witter, wat duidt op stoom in plaats van vulkaanas

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Op woensdag 1 september 2010 09:55 schreef Frutsel het volgende:

Thousands flee Indonesia volcano

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Sinabung Volcano - John Seach
john

Sumatra, Indonesia

3.17 N, 98.392 E
summit elevation 2460 m
stratovolcano

Sinabung volcano is located in northern Sumatra adjacent to the town of Berastagi.

Sinabung volcano contains four overlapping summit craters, with solfatara activity present during the 20th century. The cone shows evidence of many lava flows.

Crater 1. Diameter 300 m.
Crater 2. Diameter 150 m. Contains crater lake.
Crater 3 (Batu Sigala). 160 m x 130 m. Contains crater lake.
Crater 4. Diameter 60 m.

Strong solfatara activity is found at crater 2 and 3.

2010 Eruption
Sinabung volcano erupted on 29th August 2010 for the first time in hundreds of years. Ash emissions reached a height of 1500 m. At least 12,000 people were evacuated.

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Paniek na nieuwe uitbarsting vulkaan Sumatra

JAKARTA - Op het Indonesische eiland Sumatra is vrijdag paniek ontstaan na een nieuwe uitbarsting van de vulkaan Sinabung. Volgens The Jakarta Post lagen veel mensen die waren teruggekeerd naar hun dorpen op de hellingen van de berg na twee eerdere erupties, te slapen toen de vulkaan weer actief werd rond kwart voor vijf 's morgens.

Het was de zwaarste uitbarsting tot nog toe. In de afgelopen dagen hadden vulkanologen al gewaarschuwd dat de hoogste alarmfase nog altijd van kracht was, maar veel Sumatranen trokken zich daar niets van aan en verlieten opvangkampen.

De uitbarsting van de Sinabung van zondag was de eerste in vierhonderd jaar. Een tweede, krachtiger uitbarsting volgde maandagochtend, waardoor pluimen donkergrijze rook en vulkaanas tot 2 kilometer hoogte stegen. De autoriteiten evacueerden circa 30.000 mensen.

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Op vrijdag 3 september 2010 09:57 schreef Frutsel het volgende:

[..]

Lekker dan Als dat maar goed gaat

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Krachtigste uitbarsting vulkaan Sinabung
_{Uitgegeven: 7 september 2010 09:24
Laatst gewijzigd: 7 september 2010 09:33}
KABANJAHE - De Indonesische vulkaan Sinabung, die vorige week na vierhonderd jaar weer actief is geworden, heeft dinsdag zijn krachtigste uitbarsting tot dusver beleefd.
De vulkaan schoot lava en vulkaanas tot 2,5 kilometer hoog in de lucht. De uitbarsting was tot 8 kilometer ver te voelen.

Geduld
De Indonesische president Susilo Bambang Yudhoyono, die de regio maandag bezocht, heeft de vluchtelingen om geduld gevraagd. ''Sinabung is erg actief met een reeks uitbarstingen, Voor uw eigen veiligheid kunt u beter voorlopig bescherming zoeken''.

De gevluchte omwonenden vrezen dat hun oogsten mislukken door de vele vulkaanas.
Ruim 20.000 mensen uit de regio zijn hun huizen ontvlucht sinds de uitbarstingen begonnen. Enkelingen hadden al geprobeerd terug te keren.

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Sinabung volcano (Sumatra, Indonesia): more and increasingly strong explosions

_{Tuesday Sep 07, 2010 07:53 AM | Age: 3 hrs}

At least one powerful explosion, probably the strongest so far, occured today at Sinabung volcano on Sumatra. The ash plume reached 25,000 ft elevation (ca. 8km) and the type of eruption can probably be best qualified as vulcanian, similar to Krakatau's activity in 2009. According to news articles, heavy ash fall prevented more than 23,000 people from returning to their homes.

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Mount Sinabung volcano on the Indonesian island of Sumatra has erupted again, sending ash and smoke several kilometres into the atmosphere.

Thousands of people living near the mountain evacuated their homes to stay in government-provided shelters.

According to airport officials, some domestic flights in the region have been affected by the volcanic ash.

Mount Sinabung, long considered to be inactive, erupted for the first time in 400 years in the early hours of Sunday.

Mr Surono, a government vulcanologist, told the BBC that the volcano erupted again early on Monday, spewing black ash and soot two kilometres (1.24 miles) into the air.

He said the eruption was bigger than Sunday's.

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De Indonesische vulkaan Sinabung in Noord-Sumatra is dinsdag tot de krachtigste uitbarsting gekomen sinds hij vorige week na vier eeuwen ontwaakte. Een grote wolk zwarte as schoot in de lucht. In dorpen op 25 kilometer afstand dwarrelden de asdeeltjes neer.

Sommige getuigen zeiden dat ze in scheuren langs de hellingen van de vulkaan een oranje gloed waarnamen, een teken dat er ook magma uit de krater komt. De berg schudde tijdens de uitbarsting gedurende drie minuten zeer heftig.

De eerste uitbarsting vorige week kwam volledig uit het niets. Met meer dan 129 actieve vulkanen in de regio hadden plaatselijke vulkanologen niet gemerkt dat de Sinabung uit zijn slaap ontwaakte. De vrees bestaat dat de huidige activiteit een voorbode is op een nog veel krachtiger uitbarsting in de komende weken of maanden, hoewel het ook mogelijk is dat de vulkaan alleen wat stoom afblaast en weer in slaap valt.

Meer dan dertigduizend mensen die op de vruchtbare hellingen van de vulkaan wonen, zijn ge�vacueerd naar vluchtelingenkampen, moskee�n en kerken in nabijgelegen dorpen.

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Renewed activity and ashcloud at Mt Cleveland
UNALASKA, AK (kucb) - This weekend, Mount Cleveland showed yet more signs of activity. The volcano, located in the central Aleutians, has been fairly active this summer and it released a seven-kilometer plume containing ash and steam on Sunday morning.

Steve McNutt is a research professor at the University of Alaska-Fairbanks and a coordinating scientist at the Alaska Volcano Observatory. Here's what he can make out from the satellite imagery of the volcano.

"Satellite images showed a weak plume, possibly containing ash, in the vicinity of Cleveland Volcano," says McNutt. And this is not completely in isolation. The remote sensing data from several different sensors has showed over the last couple of weeks an increase in thermal anomalies. So that means when the satellites are flying straight overhead looking down in the volcano they see evidence of increased heat in the summit area"

Two weeks ago, AVO placed Cleveland on watch, and upped its status to yellow. But on Friday, AVO moved the volcano down to unassigned. Now, it's back on yellow and will be for some time, due to the difficulty of monitoring the volcano.

"The trouble with Cleveland is that it seems to be mildly active a lot of the time, and about half a dozen times a year it has these small to moderate eruptions with an ash plume up in the 15,000 to 20,000-foot range," says McNutt. "And because we don't have any monitoring equipment on it guesstimate when conditions are favorable."

Cleveland frequently emits ash, and plumes like this are released about six times a year. McNutt says that AVO is keeping a close eye on the volcano but that increased thermal activity doesn't necessarily mean a major eruption is on the way. Still, even small plumes could spell trouble for air travel and inconvenience nearby boats.

"The effects would be fine ash in the air, a little bit of ash fall on the ground," says McNutt. "For example, fishing boats in the vicinity might have had some ash fall on their decks. Airplanes flying locally would have noticed the sulfur smell and ash hitting the windshield. Part of the reason for our advisories is to keep local aircraft away."

Among the communities potentially affected are Nikolski and Atka, which receive air service from Unalaska. Trans-Pacific jet shouldn't be affected by a plume like this, since they fly at much higher elevations. The ash that erupted on Sunday drifted easterly, and McNutt said that AVO has not heard of any damage caused by the activity.

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Thursday, September 23, 2010
Sinabung Volcano, Indonesia - John Seach
Posted by John Seach
Volcanic activity Sinabung volcano, Indonesia has decreased based on seismic observations, deformation, SO2 concentration, and visual observations. The alert status at Sinabung has been decreased from CAUTION (Level IV) to alert (Level III) effective from 23 September 2010 at 3:50 pm. Activity began at Sinabung volcano, on 27th August 2010 after 400 years of inactivity. Six large explosive eruptions have occurred at the volcano in the past month. These eruptions occurred on August 27 at 18:30 pm, August 29 at 0:10 pm, August 30 at 06: 23 pm, September 03 at 04:38 and 17:59 pm, and September 7, at 0:23:37 pm. The largest explosive eruption occurred on September 7. Eruption was accompanied by strong roar and rattled windows 8km from the volcano. An eruption column 5000 m high drifted southeast. As of September 22, 2010, activity was dominated by thick white gas emission, rising an average height of between 50-100 m above the crater. A lahar hazard remains at the volcano. Most residents are permitted to return to their homes and resume normal activities. Because of the ongoing risk of phreatic eruptions, people are advised to stay at least 3.5 km from the crater, and this includes three villages.

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Friday 1st October 2010
Piton de la Fournaise Volcano, Reunion
High levels of seismicity continues at Piton de la Fournaise Volcano, Reunion. On 29th September 33 earthquakes were measured. The magnitude of the largest earthquake was 1.7 (not felt by the population). A significant number of landslides have occurred at Dolomieu crater (33/day) with an average volume significantly higher compared to previous days. Inflation of the edifice of Piton de la Fournaise has occurred particularly its eastern portion. An increase in summit crater fumaroles has been observed.

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Volcano on Reunion Island erupts

Officials on Reunion Island in the Indian Ocean say the Piton de la Fournaise volcano has erupted.

The prefecture on the French island said the volcano erupted Thursday at 7:10 p.m. local time (1510 GMT) following several days of heightened seismic activity.

The prefecture says in a statement the lava flow appeared stable, but access to the volcano and its surroundings has been indefinitely restricted.

The volcano is located in the southeast of the island. Most of the main population centers, including the capital, Saint-Denis, are clustered on the other half of the island.

The Piton de la Fournaise is a very active volcano and it often spews fumes and lava.

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Op vrijdag 22 oktober 2010 22:47 schreef Frutsel het volgende:
Check dit
http://www.stumbleupon.co(...)e-south-pacific.html

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Op maandag 25 oktober 2010 11:08 schreef meteo-online het volgende:
Hier wat kaartjes van de vulkaan, weet niet wat het allemaal inhoud maar er zit wel een behoorlijke stijgende lijn in

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Op maandag 25 oktober 2010 13:47 schreef Basp1 het volgende:

[..]

Zijn er ook geen plaatjes ik ben visueel ingesteld.

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Krakatau erupts also
Indonesia's Anak Krakatau volcano in Sunda Strait, straddling East Java and Sumatra, has spewed ash and flaming rocks.

Officials raised alert levels to 'high' on Friday as the volcano showed signs of increased activity, producing 117 small eruptions.

Staff at the observation post in Pasauran, Banten Province are on a 24-hour watch. Residents in Pasauran have been told to stay at least two kilometres away from the volcano.

Anak Krakatau means 'Child of Krakatau', named so because it rose in the place of Krakatoa volcano after it blew itself apart in one of the most destructive eruptions in history in 1883. The area is a popular tourist site and many villagers farm on the slopes of nearby Ibu Krakatau (Mother of Krakatau) on the same island.

"Until now we are still on alert level but when we examined our equipment on October 27 and 28 we experienced tremors," said Anton Priambudi, a volcanologist observing Anak Krakatau.

Several volcanos in Indonesia increased their activities recently following Mount Merapi's eruption on Tuesday.

The eruptions came only a day after a tsunami struck the remote islands in western Indonesia.

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Op dinsdag 2 november 2010 10:30 schreef Light het volgende:

[..]

Hawaii is VS

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Bulusan volcano increases activity
MANILA, Philippines The Philippine Institute of Volcanology and Seismology (Phivolcs) recorded Sunday increased seismic activity at Bulusan Volcano in Sorsogon province, 24 hours after the active volcano spewed a 600-meter ash column and grayish steam last Saturday.

State volcanologists noted that at least 10 volcanic earthquakes and four explosion-type events have been documented subsequent to the emission of ash and steam at 8 a.m. on Saturday.

After the ash ejection (last Saturday), steaming activity was characterized by strong emission of white steam column that reached a maximum height of 200 meters above the crater rim, Phivolcs said.

Since 2 p.m. on Saturday, visual monitoring of the volcano's other activities were being obscured by thick clouds covering the volcano's summit.

Phivolcs maintains the status of Bulusan Volcano under Alert Level 1 (rendering abnormal activity) due to its current activity that may lead to more steam and ash ejections in the coming days.

It reminded the public not to enter the four-kilometer permanent danger zone from the volcano.

People residing near the valleys and streams were also advised to be extra alert against sediment-laden stream flows in the event of heavy rains.

Bulusan Volcano is considered the 4th most active volcano in the country, after mounts Mayon, Taal, and Pinatubo. It has erupted 15 times since 1886.

Since the volcano showed intermittent signs of ash explosions and seismic activity in 2007, Phivolcs reported activity at Bulusan only last Saturday.

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Bulusan spuugt opnieuw
De Filipijnse vulkaan Bulusan heeft opnieuw as gespuwd. In navolging van het drama met de Indonesische vulkaan Merapi beginnen de Filipijnen aan een evacuatie. Ongeveer 80.000 mensen wonen in het risicogebied.

De Filipijnse vulkaan ligt op ongeveer 3.000 kilometer van zijn Indonesische collega. Merapi eiste vorige week meer dan honderd dodelijke slachtoffers. Uit de 1.560 meter hoge krater van Bulusan stijgt een aswolk op.

Bulusan ligt op ongeveer 250 kilometer van de hoofdstad Manila. De laatste uitbarsting is nog maar van 2007 geleden.

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First I am not indicating a Pending eruption, I am not a seizemologist by any means.

The Posted graphs indicate where the quake origionated and its length, Only a Profesional can determine rather or not this is Volcanic in Origion.. Again I am not a profesional, I am jsut posting this to aid you in where they origionated at. Not every squiggle is ground shake and not every ground shake is a quake. Seizomerters can register, glaciers moving, rock slides , and and the Obviouse Earth quake.

Again these are For refrence in where the quake occured. IT Does Not Mean an Eruption Will Happen..Only trained Geologist can forcast that. I am not trained in this area

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[url=http://www.malaya.com.ph/11182010/news6.html]11 volcanic quakes recorded in Bulusan

ELEVEN volcanic earthquakes were recorded from 5 p.m. Tuesday up to 5 p.m. yesterday at Bulusan Volcano in Sorsogon.

Alert level 1 remains.

The Philippine Institute of Volcanology and Seismology reminded the public not to enter the four-kilometer permanent danger zone.

Phivolcs also said civil aviation authorities must advise pilots to avoid flying close to the volcano’s summit as ejected ash and volcanic fragments from sudden explosions may pose hazards to aircrafts.

Also, residents near valleys and streams were also advised to be vigilant against sediment-laden stream flows in case of heavy and continuous rains.

Residents were also warned of ash falls particularly at the northwest and southwest sectors of the volcano.

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cienceDaily (Nov. 18, 2010) Months of volcanic restlessness preceded the eruptions this spring of Icelandic volcano Eyjafjallaj�kull, providing insight into what roused it from centuries of slumber.
An international team of researchers analyzed geophysical changes in the long-dormant volcano leading up to its eruptions in March and April 2010 that suggest that magma flowing beneath the volcano may have triggered its reawakening. Their study is published in the Nov. 18 issue of the journal Nature.
"Several months of unrest preceded the eruptions, with magma moving around downstairs in the plumbing and making noise in the form of earthquakes," says study co-author Kurt Feigl, a professor of geosciences at the University of Wisconsin-Madison. "By monitoring volcanoes, we can understand the processes that drive them to erupt."

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Friday 19th November 2010
Merapi Volcano, Indonesia
Eruptions continue at Merapi volcano, Indonesia with reduced intensity. Visual observations show white-grey emissions rising 1500 m above the summit. A total of 275 people have been killed in the eruption. A 20 km exclusion zone is in place around the volcano. Merapi remains at the highest level 4 alert. A threat of pyroclastic flows and lahars exists at the volcano.

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Wednesday 17th November 2010
Krakatau Volcano, Indonesia
Eruptions continue at Krakatau volcano, Indonesia. Explosions have been heard by people on the west coast of Java. Some residents at Anyer were concerned after they heard three explosions from Krakatau on Sunday. The number of explosion earthquakes increased to 933 on Friday. People are advised to stay more than 3 km from the volcano. Sea transportation has not been affected. Despite the explosions, the status of Krakatau remains at Waspada (Level 2).

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Villagers flee Philippine volcano
Scores of people were forced to flee their homes after a restive Philippine volcano shot a column of ash into the air showering surrounding villages.
Residents of two villages near the 1565-metre Mount Bulusan volcano evacuated their homes after the volcano shot a column of ash some two kilometres into the air.

"The ones evacuated were those most vulnerable to the ash like the children, the elderly, the pregnant and nursing mothers," said disaster control chief Jose Lopez in an interview with ABS-CBN television.

Evacuees were taken to government schools that are being used as relief centres, he added.

More than 750 people have fled their homes since Bulusan started emitting ash on November 6, Mr Lopez said.

One man with asthma already died from Bulusan's ash emissions on November 11, the National Disaster Risk Reduction and Management Council said in Manila.

Government vulcanologists had earlier raised the alert level for Bulusan from zero to level 1, indicating abnormal activity, possibly a sign of more ash eruptions to come.

The government has warned people not to enter a four-kilometre "danger zone" around the volcano and communities nearby were told to be on alert for volcanic mudslides caused by heavy rains mixed with ash deposited on Bulusan's slopes.

Bulusan, 250 kilometres southeast of the capital Manila on the main island of Luzon, is one of the country's 23 active volcanos.

The local government said a quarter million people live in six towns around the volcano, and many of them could be at risk if the mild eruption increases in intensity.

Bulusan has erupted 16 times in recorded history, the last time in 2006. It began emitting ash again from November 6.

The Philippines is part of the Pacific Ring of Fire where frequent volcanic eruptions and earthquakes take place

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Tungurahua triggert starke explosion[/url]

Panik unter der Bev�lkerung
Nach fast f�nf Monaten relativer Ruhe hat heute der Vulkan Tungurahu in Ecuador eine gewaltige Explosion erzeugt. Nach Angaben des Geophysikalischen Instituts von Ecuador wurde eine mehrere Kilometer hohe Aschewolke in die Atmosph�re geschleudert.

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5.4 Magnitude Earthquake shakes Indonesia's supervolcanic lake, Lake Toba

Lake Toba is an Indonesian supervolcano with a lake on the crater, the supervolcano is 100 kilometres long and 35 kilometres wide. The deepest point of the volcano is 1,666ft. The supervolcano is located on the island of Sumatra that also suffered the worst in the 2004 earthquake. The lake on the volcano is the largest in Indonesia and the largest volcanic lake in the world.

Today Lake Toba suffered a 5.4 Magnitude earthquake, the earthquake was larger than normal tremors on the volcano. In history the eruption of Toba had global consequences, killing thousands. Once Lake Toba erupted and it led to a volcanic winter worldwide. (That theory is still debated today).

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Renewed activity in Ecuador
Volcanic activity has been reported in the Tungurahua (Throat of Fire) volcano in Ecuador, the second case sighted in the past few weeks.

The volcano spewed molten rocks and large clouds of gas and ash near Banos, south of Quito, Reuters reporetd on Tuesday.

The Tungurahua's volcanic activity follows last month's eruption, when a column of gas shot up seven kilometers into the sky.

No casualties have been recorded so far, but flight re-direction is being considered.

Tungurahua is located approximately 150 kilometers southeast of Ecuador's capital, Quito.

After a long period of peaceful resting, the volcano erupted in 1999, leading to the evacuation of about 250,000 people.

In 2006, Tungurahua underwent another major eruption, leading to the death of seven villagers. Yet another major eruption took place in 2008, leading to more evacuations. The next eruptions occurred in May and in November 2010.

Tungurahua's eruptions are strombolian, or low-level eruptions. Following its 1999 eruption, the volcano continues its activity on a medium level.

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Authorities order evacuations
BANOS, Ecuador, Dec 4, 2010 (AFP) - Authorities ordered the preventive evacuation Saturday in the southern Ecuadoran town of Bano as they put the country on high alert over a possible major eruption of the Tungurahua volcano.

"People are coming to safe areas in an orderly fashion," Deputy Interior Minister Edwin Jarrin told AFP.

The Geophysical Institute in Quito reported since early Saturday a "very rapid and sustained increase in seismic activity and other manifestations at the surface" of the volcano.

Tungurahua, which has been erupting off and on since 1999, was spewing out incandescent material and ash, according to the institute.

A red alert was in effect in Banos and other Andean villages of the 5,029-meter (16,500-foot) volcano, whose name means "throat of fire" in the local Quechua language. It is located some 135 kilometers (85 miles) south of Quito.

In 1999, the 15,000 inhabitants of this town were forcibly evacuated by a powerful eruption and were unable to return to their homes for a year.

Banos, one of the gateways to the Amazon jungle, hosts an average of a million tourists a year, 40 percent of them foreigners, according to local officials.

Tungurahua’s biggest eruption, in August 2006, left six people dead and destroyed hundreds of homes.

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Gloeilamp blokken rolde

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Op maandag 6 december 2010 10:54 schreef Jumparound het volgende:

[..]

Haha, mooie vertaling!

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Eruptive Activity at Tungurahua Volcano Decreases

QUITO - The eruptive activity of the Ecuadorian Tungurahua volcano, located in the Tungurahua province, reduced its intensity while maintaining a constant column of ash.

The emission column, with a moderate to high contents of ash, reached about two miles above the crater and headed towards the east, although experts believe that it has reduced the danger to surrounding areas.

Incandescent blocks associated to the activity of the volcano of 1.029 meters of altitude roll down the flanks of the volcano.

As of Saturday afternoon, a decline of the intensity has been registered in the activity of this volcano which had earlier forced to declare a red alert and the evacuation of residents and tourists of nearby areas.

The Tungurahua, located south of Quito, has been active since 1999, according to director of the Geophysical Institute Hugo Y�pez.

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Op dinsdag 7 december 2010 12:17 schreef Frutsel het volgende:

[..]

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Op dinsdag 7 december 2010 12:53 schreef ScudRaket het volgende:
Edit: Mooi filmpje: http://www.dumpert.nl/med(...)rahua_timelapse.html

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Volcano Erupts In Russian Far East, Massive Eruption Feared

VLADIVOSTOK, Dec 17 (Bernama) -- A volcano in the Russian Far East peninsula erupted several days ago, prompting experts to raise the hazard level caused by the possible massive eruption, reports China's Xinhua news agency on Friday.

The volcano Kizimen, located in the Kamchatka Peninsula, has spewed ashes as high as 10 km into sky and the western slope of the mountain has been covered with ashes due to high winds.

The snow on the slope was thawing quickly, pushing river water level up by 60 cm.

Specialists don't rule out the possibility of a massive eruption of Kizimen, which has remained dormant for 80 years.

A helicopter would soon be sent to the site to check whether the eruption was still going on.

The nearest human settlement is about 110 km away from the volcano.

The Kamchatka Peninsula has a high density of volcanoes, flanked by large volcanic belts containing about 160 volcanoes, with 29 of them still active.

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Fuego, Guatemala rumbling, building up for ... ?
One of Guatemala's active volcanoes, Fuego, is rumbling at a greater-than-usual rate, the emergency services office said Saturday.
The volcano is seeing 12-15 small explosive events per hour, the office said, citing a report from the National Seismological Institute.

Fuego is belching ash to heights of 500-900 meters and ash has been seen in the cities of Antigua Guatemala and San Juan Alotenango, the office said.

At 3,763 meters (12,345 feet) above sea level, Fuego sprawls across three departments of the Central American nation: Sacatepequez, Escuintla and Chimaltenango.

In May, the Pacaya volcano in Escuintla department spewed ash over much of the country

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Mount Krakatau ash clouds reach up to two kilometers

ANYER - The height of the ash clouds that are currently being emitted by the Mount Krakatau volcano is still increasing and reaches almost up to two kilometers now. The volcano, located in the Sunda Strait between the islands of Java and Sumatra, also shows an increase in the amount of tremors inside the belly of the volcano.

Based on visual observations of the volcano, ash clouds now reach up to 1.700 meters and above, higher than in the past few days. This was reported by the head of the observation post for the Krakatau volcano in the village of Pasauran in Serang, Banten province, Anton S. Pambudi. He also said that the higher ash cloud was due to increased activity inside the volcano.

The Agency for Volcanology and Geological Disasters PVMBG is maintaining the alert status of the volcano for the time being; level two. People near the volcano are not allowed to come close to the crater of the volcano. There is a chance that volcanic material falls from the sku in the area. The Mount Krakatau volcano often emits small stones that fall down on it's slopes.

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Etna active - no lava yet
Mount Etna in Sicily has once again become active erupting large amounts of ash, reported Monday Italian National Institute of Geophysics and Volcanology.

Seismologists have recorded the eruption of volcano at Mount Etna and say that it is accompanied by the ejection of volcanic ‘bombs’ (large stones) and the large amount of ash in the area southeast of the crater on Monday night.

The most active emissions for duration ranging from one to three minutes occurred between midnight and two o’clock in the morning. These large volcanic ‘bombs’ reached a height of several tens of meters over the crater. By around 06.00 am the volcanic activity decreased significantly, but not stopped completely.

However, no eruption of lava has been recorded from the crater of Mount Etna, said experts from National Institute of Geophysics and Volcanology lab, located in the city of Catania.

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8 quakes recorded near Mt Bulusan
STATE seismologists recorded eight volcanic quakes around Mount Bulusan in Sorsogon province during the past 24-hour observation period.

In its 8 a.m. Monday bulletin, the Philippine Institute of Volcanology and Seismology (Phivolcs) said visual observation of the crater and known thermal vents was not possible due to thick clouds covering the summit.

It added no lahar event was observed.

Alert level 1 remains in effect over the volcano.

Phivolcs reminded the public not to go near or inside the four-kilometer radius permanent danger zone, saying the area is at risk to sudden steam and ash explosions.

The agency also advised residents in the northwest and southwest sectors of the volcano to take precautions against ashfalls.

Pilots are also advised not to fly close to Bulusan's summit as the volcano might eject ash and volcanic fragments that may pose hazards to aircrafts.

The Phivolcs assured that it is monitoring the activity of Mount Bulusan.

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Kuril volcano eruption threatens health
An ash cloud that erupted on Thursday from the Ebeko Volcano on the Kuril Islands in the Russian Far East could threaten the health of local residents, a spokesman for the Emergencies Ministry said.

The volcano, which lies 8 km to the north west of the town of Severo-Kurilsk on Paramushir Island, ejected a 400-meter-high cloud of ash and steam on Thursday.

"There is a faint odor of hydrogen sulfide in the city," the spokesman said, adding that the gas concentration was not life threatening. Locals have been recommended to wear gauze masks while outdoors.

There have been two known eruptions of the Ebeko volcano; one in 1859 and the last in 1934. The resulting sulfur emissions caused mass poisoning among local residents and loss of cattle.

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Vulkaan Etna komt tot leven
De vulkaan Etna op Sicili� is in de nacht van woensdag op donderdag tot uitbarsting gekomen. Langs de flanken van de vulkaan stroomde lava naar beneden. De aswolk noopte een nabijgelegen vliegveld enkele uren te sluiten. Dat heeft het vulkanologisch instituut in Catania gezegd.

De uitbartsting duurde een uur of twee. Niemand raakte gewond.

De Etna is een van de meest actieve vulkanen in Europa. De laatste grote uitbarsting was in 1992.

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Op vrijdag 14 januari 2011 12:18 schreef Revolution-NL het volgende:
Is het normaal dat er zoveel vulkanen tegelijk actief zijn?

http://hisz.rsoe.hu/alertmap/index2.php?smp=&lang=eng

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Kizimen spews ash
Kizimen Volcano in the Russian Far East continued to spew plumes of ash on Monday, seismologists said, adding that most of the ash clouds remained below the altitude of 6 to 8 kilometers and that there was no immediate threat to populated areas.

Kizimen started showing signs of activity in the summer of 2009. Its last eruption was registered in 1929.

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Three volcanoes acting up
MANILA, Philippines – Three active volcanoes in Luzon showed signs of increased activity Sunday, exhibiting rock fall, moderate steam, and minor quakes in their respective vicinities, state volcanologists reported.

The Philippine Institute of Volcanology and Seismology (Phivolcs) said signs of unrest were detected in Mayon, Taal, and Bulusan volcanoes during its 24-hour observation.

Phivolcs reported having observed one rock fall at Mayon Volcano in Albay and its steam was white and moderate.

Meanwhile, crater glow was not observed due to thick clouds covering Mayon’s summit.

“Results of ground deformation surveys conducted last November and December 2010 showed that the volcanic edifice remains inflated based on 2008 baseline data,” the Phivolcs said.

Alert Level 1 has been raised due to Mayon’s current activity.

While no eruption is imminent, Phivolcs strongly prohibited the public from wandering within the six-kilometer radius permanent danger zone (PDZ) due to the continuing threat from sudden small explosions and rock falls from the upper and middle slopes of the volcano.

“Active river channels and those perennially identified as lahar-prone areas in the southern sector should also be avoided especially during bad weather conditions or when there is heavy and prolonged rainfall,” it warned.

Meanwhile, 10 minor volcanic earthquakes were detected around Taal Volcano in Batangas last Saturday.

Phivolcs explained that two of 10 tremors, which occurred at 1:47 p.m. and 1:48 p.m., were felt at Intensity 1 by residents in Barangay Pira-piraso located at the northern side of the volcano.

Visual observation and temperature measurement conducted last January 10 showed that steaming activity at the thermal area inside the main crater remained weak, while the water temperature and acidity (pH) were within the normal range.

“Likewise, the Main Crater Lake remained bluish green in color and no bubbling was noted. Results of the precise leveling ground deformation survey conducted around the Volcano Island last December 2010 showed slight inflation as compared with September 2010 survey,” the Phivolcs said.

Taal Volcano’s status remains at Alert Level 1, which means that a major eruption is not imminent.

However, Phivolcs reminded the public to refrain from entering the main crater due to sudden occurrence of steam explosions and accumulation of toxic gases.

It added that the northern portion of the main crater rim, in the vicinity of Daang Kastila trail, may also be dangerous when increased steam emission is reactivated along existing fissures.

Phivolcs explained that the entire Taal Volcano Island is declared a PDZ, which means that permanent settlement in the island is strictly not allowed.

With regard to Mount Bulusan in Sorsogon, Phivolcs recorded one volcanic earthquake during the past 24 hours.

“Visual observation of the crater and known thermal vents was not possible due to thick clouds covering the summit,” Phivolcs said.

It added that no lahar event was reported or observed.

State volcanologists noted that ground deformation surveys conducted last November and December 2010 showed that the volcanic edifice was slightly deflated relative to August 2010 survey.

Bulusan Volcano’s status remains at Alert Level 1, meaning the source of activity is hydrothermal and shallow.

However, no entry to the fourkilometer radius PDZ is strongly advised, since the area is at risk to sudden steam and ash explosions.

Residents near valleys and river/stream channels were also advised to be vigilant against sediment-laden stream flows and lahars in the event of heavy and prolonged rainfall. (Ellalyn B. De Vera)

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Bulusan spews more ash
Restive Bulusan Volcano in Sorsogon acted up again onTuesday, spewing ash in a predawn explosion before dawn, state volcanologists said.

The Philippine Institute of Volcanology and Seismology (Philvolcs) said the quake occurred at 2:58 a.m., accompanied by a rumbling sound audible at Monbon village in Irosin town.

"(But) the explosion was not observed because the volcano summit was covered by thick clouds. Field investigation conducted this morning confirmed the presence of traces of ash deposits in Monbon, Irosin," Phivolcs said on its website on Tuesday.

Phivolcs said Bulusan's alert level remains at "1." The alert level had been at "1" since November last year.

The volcanologists added the source of Tuesday's activity was "hydrothermal and shallow."

"However, no entry to the four-kilometer radius Permanent Danger Zone (PDZ) is strongly advised, since the area is at risk to sudden steam and ash explosions," Philvolcs reminded residents.

Volcanologists also advised residents in the northwest and southwest sectors of the volcano to take precautions against ashfalls.

Civil aviation authorities must also warn pilots to avoid flying close to the volcano’s summit as ejected ash and volcanic fragments from sudden explosions may be hazardous to aircrafts, Philvolcs added.

"Furthermore, people living near valleys and river/stream channels should be vigilant against sediment-laden stream flows and lahars in the event of heavy and prolonged rainfall," Philvolcs said.

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More quakes near Taal and Mayon volcanoes
At least six volcanic quakes were recorded around restive Taal Volcano in Batangas on Sunday and early Monday, the Philippine Institute of Volcanology and Seismology (Phivolcs) said.

Phivolcs said at least two volcanic quakes were also recorded at Mayon Volcano in Bicol in the last 24 hours.

"Taal Volcano’s seismic network recorded six volcanic earthquakes during the past 24 hours. One of these events, which occurred at 3:01 a.m. early this morning, was felt at Intensity II by residents in Barangay Pira-Piraso at the northern side of the volcano island," Phivolcs said in separate bulletins on its website.

However, Phivolcs said the steaming activity at the thermal area inside the Main Crater Lake of Taal Volcano was still weak.

Still, it said the volcano's status remains at Alert Level 1, meaning a hazardous eruption is not imminent.

"However, the public is reminded that the Main Crater should be strictly off-limits due to sudden occurrence of steam explosions and accumulation of toxic gases. The northern portion of the Main Crater rim, in the vicinity of Daang Kastila trail, may also be dangerous when increased steam emission is reactivated along existing fissures," Phivolcs said.

Phivolcs also reminded the public the entire Volcano Island is a Permanent Danger Zone (PDZ), and permanent settlement in the island is strictly not recommended.

In Bicol, meanwhile, Phivolcs said two volcanic quakes were recorded around Mayon Volcano in the past 24 hours.

White steam emission from the crater ranged from weak to moderate during the same observation period, it added.

On the other hand, fair crater glow at Intensity II - visible to the naked eye - was observed Sunday night.

Phivolcs said Alert Level 1 also remains in effect over Mayon Volcano, reminding the public not to venture inside the 6-kilometer (km) Permanent Danger Zone (PDZ) due to the continuing threat from sudden small explosions and rockfalls from the upper and middle slopes of the volcano.

"Active river channels and those perennially identified as lahar prone areas in the southern sector should also be avoided especially during bad weather conditions or when there is heavy and prolonged rainfall," it said.

Meanwhile, Bulusan volcano was relatively quiet, with no volcanic quake recorded in the last 24 hours.

However, Phivolcs maintained Bulusan's status remains at Alert Level 1, and no entry to its 4-km PDZ is allowed.

"Due to the prevailing wind direction, residents in the northwest and southwest sectors of the volcano are reminded to take precautions against ashfalls," Phivolcs said

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Op dinsdag 25 januari 2011 19:14 schreef Frutsel het volgende:

Kavachi Volcano

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Op donderdag 27 januari 2011 00:43 schreef zenkelly het volgende:
Hey FrRutsel, hoe kan jij eigenlijk sneller zijn dan John Seach?

quote:

Op donderdag 27 januari 2011 00:43 schreef zenkelly het volgende:
Hey FrRutsel, hoe kan jij eigenlijk sneller zijn dan John Seach?

Pyroclastische stromen van vulkaan Kirishima

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Op donderdag 27 januari 2011 08:34 schreef Frutsel het volgende:

[..]

LOL
Jon Seach kan ook niet tegen Twitter op en ik kreeg de tip via de link die ik hierboven gaf

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Op donderdag 27 januari 2011 10:10 schreef Jumparound het volgende:
Bedankt fruts, indrukwekkend filmpje en super mooie foto's :-)

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Op donderdag 27 januari 2011 10:19 schreef Frutsel het volgende:

[..]

Best snel deze keer toch

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James Bond volcano erupts

A Japanese volcano featured in the James Bond film You Only Live Twice has erupted covering surrounding villages with ash.

The Mount Shinomoedake volcano, in southern Japan erupted into life on Wednesday throwing ash almost 5,000ft into the air.

Roads have become unpassable and trains and flights to the area have been cancelled as officials assess the situation.

No injuries have been reported but a 1.2 mile safety exclusion zone has been created around the site.

The volcano has been active before, erupting in 1959, 1979 and most recently in 2008.

28th October 1966: The extensive film set at Pinewood studios, London, representing the interior of a volcano owned by the criminal syndicate SPECTRE built for the James Bond film 'You Only Live Twice' designed by Ken Adam, directed by Lewis Gilbert and produced by United Artists.

The film set of Bond villain Blofeld's volcanic lair at Pinewood studios, 1966

The volcano and surrounding area in southern Japan was used as the centrepiece for You Only Live Twice starring Sean Connery.

In the 1967 film, the then dormant volcano, had an artificial lake hiding the secret base of Bond nemesis Ernst Blofeld.

The volano interior was created by the iconic 1960s film set designer Sir Ken Adam and built at Pinewood Studios in England.

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Op donderdag 27 januari 2011 12:14 schreef Frutsel het volgende:

[..]

Ff voor de duidelijkheid...Mount Shinomoedake = Kirishima toch?
Of zijn er nu twee vulkanen in Japan actief?

quote:

Residents temporarily evacuated their homes and transportation services were disrupted as smoke continued to billow from the erupting volcano Shinmoedake in the Kirishima range between Kagoshima and Miyazaki prefectures on Jan. 27. Plumes of smoke rose 2,000 meters following an eruption on Jan. 26, figures from the Kagoshima Local Meteorological Observatory showed. By 9 a.m. the following morning the smoke had fallen to an altitude of 400 meters, but officials said a series of small eruptions were continuing, and called for caution. "The volcanic activity has just started, so we can expect more periods of rest and activity. There's also a chance of a major eruption," an observatory representative said. The eruptions prompted some residents in Miyazaki Prefecture to temporarily evacuate their homes, while three junior and elementary schools in Miyakonojo, Miyazaki Prefecture, delayed the start of classes by one to two hours. In the Ojibaru district of Takaharu, a town in Miyazaki Prefecture located about 7 kilometers from the crater, 14 people voluntarily took shelter at a local health and welfare center in the predawn hours of Jan. 27. They returned to their homes later in the day. The eruptions forced the cancellation of services on the JR Nippo Main Line between Tano and Kokubu stations, on the Nichinan Line between Aoshima and Shibushi stations, and on the whole Kitto Line. A section of the Miyazaki Expressway also remained closed off due to poor visibility. On the evening of Jan. 26, after the volcano's eruption warning level was upgraded, the Kirishima Municipal Government in Kagoshima Prefecture closed mountain trail entrances within a 2 kilometer radius. It has asked residents to voluntarily avoid using other trail entrances.

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Op donderdag 27 januari 2011 15:50 schreef lipjes het volgende:
das weer eens wat anders dan sneeuw van je auto af te halen

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Galeras volcano eruption expected

Colombian authorities have raised the risk level of the Galeras volcano to orange alert, meaning an eruption is likely within days or weeks.

The Colombian Institute of Geology and Mining (Ingeominas) declared the alert on the Galeras volcano in south-west Colombia Wednesday because of "fluctuating levels in the occurrence of seismicity," according to a statement issued by Ingeominas.

In particular, "the occurrence of earthquakes with screw-type characteristics, which are relevant because in Galeras they have been recorded in periods prior to eruptions," has caused the government agency to warn of an impending eruption.

The Civil Defense and Red Cross volunteers have prepared nine shelters with basic elements necessary for survival to accommodate the some 8,000 residents from the nearby municipalities of Pasto, Nari�o, and La Florida, the Director of the local Red Cross relief organization Javier Guerrero told RCN Radio. No residents have been evacuated yet.

Galeras is the country's most active volcano. It erupted in January 2010, forcing the evacuation of the area's inhabitants. In 2009 the volcano erupted five times.

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Op donderdag 27 januari 2011 16:07 schreef Scrummie het volgende:
Is het nu vaker actief of ligt dat aan mij dat het meer opvalt?

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Op donderdag 27 januari 2011 16:13 schreef Jumparound het volgende:
Maar als een vulkaan in Kantjatka uitbarst zie je dat alleen op Nasa Picture of the day
Maar nu zijn het er een paar die in (dicht)bevolkte gebieden liggen... (lijkt het)

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Supervolcanoes Monitoring System

Name of Volcano VEI Continent Country Location Last eruption Last activity Status Details
Lake Taupo 8 Australia & New-Zealand New Zealand North Island ~26,500 years ago 27.01.2011
Lake Toba 8 Indonesian Archipelago Indonesia Northern Sumatra ~74,000 years ago 01.01.2011
Whakamaru 8 Australia & New-Zealand New Zealand North Island ~254,000 years ago 27.01.2011 Yellowstone Caldera 8 North-America USA (Pacific Region) State of Wyoming 640,000 years ago 27.01.2011
Island Park Caldera 8 North-America USA (Pacific Region) State of Idaho 2.1 million years ago 27.01.2011
La Garita Caldera 8 North-America USA (Pacific Region) State of Colorado ~27.8 million years ago No data
Mount Tambora 7 Indonesian Archipelago Indonesia Sumbawa Island 1815 ..
Baekdu Mountain 7 Asia China The border North Korea and China ~969 CE No data
Kikai Caldera 7 Asia Japan Osumi Islands, Kagoshima Prefecture ~6,300 years ago ..
Laacher See 7 Europe Germany Rhineland-Palatinate ~12,900 years ago 23.12.2010
Aira Caldera 7 Asia Japan Island of Kyushu ~22,000 years ago No data
Campi Flegrei 7 Europe Italy Naples ~39,280 years ago 27.01.2011
Reporoa Caldera 7 Australia & New-Zealand New Zealand Taupo Volcanic Zone 230,000 years ago 27.01.2011
Mount Aso 7 Asia Japan Island of Kyushu, Kumamoto Prefecture ~80,000 years ago ..
Long Valley Caldera 7 North-America USA (Pacific Region) State of California ~760,000 years ago 26.01.2011
Valles Caldera 7 North-America USA (Pacific Region) Jemez Mountains, State of New Mexico ~1.12 million years ago 18.12.2010

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Frutsel: En dan te bedenken dat gistermorgen we de Frontpage al hebben aangeschoten, maar het tot op heden nergens te bekennen is, terwijl oa de AD, nu, CNN etc er al aandacht aan hebben besteedt. Suf en jammer

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Op donderdag 27 januari 2011 20:57 schreef Frutsel het volgende:
Hier nog eentje van Kirishima

[ afbeelding ]

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Op vrijdag 28 januari 2011 20:50 schreef Frutsel het volgende:
[ afbeelding ]
[ afbeelding ]

en nu?

Japanese volcano erupting

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Japanners ge�vacueerd om vulkaanuitbarsting

TOKIO - Honderden Japanners hebben maandag hun huizen moeten verlaten vanwege een vulkaanuitbarsting. De Shinmoedake spuwt as en rook duizenden meters de lucht in.

De mensen zijn opgevangen in scholen en gemeentehuizen, meldden de lokale autoriteiten.

In totaal moeten ruim 1150 mensen de gevarenzone verlaten. Een gebied van 3 kilometer rondom de vulkaan is ontruimd.

Reizen per trein of vliegtuig kan er niet meer. De straten in de buurt van de vulkaan zijn al bedekt met een laag grijze as.

De ruim 1400 meter hoge vulkaan ligt in het zuidwesten van Japan en is sinds woensdag actief. Het is 52 jaar geleden dat de vulkaan voor het laatst uitbarstte.

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Op donderdag 27 januari 2011 20:57 schreef Frutsel het volgende:
Hier nog eentje van Kirishima

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Op woensdag 2 februari 2011 10:50 schreef Light het volgende:
Wanneer wordt Katla eigenlijk wakker?

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Op woensdag 2 februari 2011 10:59 schreef Frutsel het volgende:

[..]

Daar rommelt het
Vulkanen IJsland #16 met een Grimmige Grimsvotn.

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Taal volcano remains active, new quakes

Taal Volcano in Batangas showed heightened activity anew after at least 10 volcanic quakes around it were recorded in the last 24 hours.

In its 8 a.m. Wednesday bulletin, the Philippine Institute of Volcanology and Seismology (Phivolcs) said the alert level at Taal remains at "1."

"Taal Volcano's status at Alert Level 1 means that a hazardous eruption is not imminent. However, the public is reminded that the Main Crater should be strictly off-limits due to sudden occurrence of steam explosions and accumulation of toxic gases," it said.

Phivolcs said the northern rim of the Volcano’s main crater – in the vicinity of Daang Kastila trail – may also be dangerous when increased steam emission is reactivated along existing fissures.

Phivolcs reminded the public that the entire Volcano Island is a Permanent Danger Zone (PDZ), and permanent settlement in the island is strictly not recommended.

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Op woensdag 2 februari 2011 12:00 schreef Frutsel het volgende:
Ik slinger hem gelijk ff via Twitter de lucht in Thx!
Trouwens

[..]

Duurt niet lang meer, dan gaat deze ook ploffen denk ik

quote:

Mount Taal in de provincie Batangas van de Filipijnen is een van de gevaarlijkste vulkanen van Zuidoost-Azi�. Van deze vulkaan zijn meer dan 30 uitbarstingen bekend, waarbij veel slachtoffers gevallen zijn.
De vulkaan ligt op Vulcano Island in het Taalmeer. De vulkaan is een zogenaamde tufsteen-kegelvulkaan. Dit zijn steile kegelvormige vulkanen met een diepe wijde krater. De kegel is samengesteld uit dunne fijne stof. Het kratermeer van de vulkaan is 1,9 km in doorsnee, blauwgroen van kleur en maximaal 76 meter diep.
Sinds 1977 is de vulkaan niet meer uitgebarsten, maar sinds 1991 is hij wel diverse malen onrustig geweest.
Mount Taal is een van de 16 Decade Volcanoes die zijn aangewezen door de IAVCEI in verband met haar geschiedenis van grote uitbarstingen en de nabijgelegen bewoonde gebieden.

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Mogelijke evacuatie na uitbarsting Shinmoedake

Shinmoedake, een vulkaan op zuidelijke eiland van Japan Kyushu is wederom uitgebarsten. De regering heeft nu ambtenaren naar het gebied gestuurd om een evacuatieplan op te zetten. De 1421 meter hoge vulkaan brak uit omstreeks 09.24 uur lokale tijd. Gisteren waren er ook al drie uitbarstingen. De uitbarsting zorgde ervoor dat er een aspluim gemeten werd van drie kilometer hoog. De aspluim trekt oost-noordoost richting Miyazaki.



Het Japanse meteorologisch instituut (JMA) heeft het niveau verhoogd naar level 3. Het meteorologisch instituut meldde er ook bij, dat een eventuele grote uitbarsting aanstaande is, wat ernstige gevolgen zou kunnen hebben voor de omringende woonwijken. Evacuaties worden uitgevoerd wanneer het alarmniveau een level 5 bereikt. Mocht er een grote uitbarsting gaan komen, dan is de overheid alvast voorbereid en zal het evacueren sneller verlopen.

De Shinmoedake vulkaan barstte voor het eerst sinds 52 jaar uit, op 27 januari, sindsdien is de vulkaan al meer dan 10 keer uitgebarsten. Autoriteiten hebben een "no go" zone van 4 kilometer ingesteld rond de vulkaan. Niet alleen de vulkaan Shinmoedake is actief in Japan, de 1117 meter hoge stratovulkaan Sakurajima, heeft ook een level 3 gekregen van het Japanse meteorologisch instituut. De vulkaan is ��n van de meeste actieve vulkanen van Japan. In 2010 kwamen er 1026 vulkanische incidenten voor, zoveel waren er sinds 1982 niet meer waargenomen.

quote:

Another Japanese Volcano Erupts

And another volcano has erupted in Japan.

Minami-dake crater at Sakurajima, a volcano on Japan's southern island of Kyushu, erupted Tuesday, following volcanic explosions at Mt. Kirishima in the same region.

The volcano spewed plumes of smoke and ash up to 2,000 meters into the air.
Local authorities temporarily banned citizens from driving near the area due to the sheer amount of ash raining down from the volcano.

Japan's Meteorological Agency says it will maintain a level 3 alert for Sakurajima that bans access to the mountain.

The agency notes, however, that it cannot confirm that this eruption was linked to a series of recent eruptions on the island.

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Op dinsdag 8 februari 2011 09:07 schreef Frutsel het volgende:

[..]

Gaat lekker

桜島ライブカメラ 2011-02-07 08-04 X1HD Volcano Sakurajima

SPOILER

Om spoilers te kunnen lezen moet je zijn ingelogd. Je moet je daarvoor eerst gratis Registreren. Ook kun je spoilers niet lezen als je een ban hebt.

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New volcano images bij USGS - ongoing quakes a concern
A new spattering vent has formed on the south side of the Thanksgiving Eve Breakout shield, and the Hawaiian Volcano Observatory caught a glimpse of the activity just before daybreak on February 4.

The active Pu’u O’o crater floor is slowly filling the east side of the vent with lava.

Meanwhile, at Kilauea’s summit, the circulating lava lake in the collapse pit deep within the floor of Halema`uma`u Crater has been visible via Webcam throughout the past week. Volcanic gas emissions remain elevated, resulting in high concentrations of sulfur dioxide downwind.

After this video was put together, the USGS gave this report on recent temblors in the region surrounding Kilauea. This statement was a part of Wednesday’s Kilauea Status Report, issued at 8:30 a.m. The report serves as a summary of the activity at the volcano over the last 24 hours.

“Nineteen earthquakes were strong enough to be located within Kilauea volcano” stated the update, prepared by HVO scientists, “sixteen within the upper east rift zone (starting beneath Puhimau Crater and migrating both uprift to Keanakako`i Crater and downrift to Hi`iaka Crater) and three scattered beneath a broad area extending both north and south of the upper east rift zone nearer Makaopuhi and Napau Craters; the ongoing seismicity within the upper east rift zone continues to be a concern.”

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Op woensdag 9 februari 2011 21:14 schreef DemonRage het volgende:
Het begint altijd met gerommel diep van binnen en vervolgens ontsnappen er wat gassen en dat wordt steeds meer. Vloeibare materie baant zich vervolgens een weg naar de oppervlakte en de druk stijgt. Wanneer de druk te groot wordt, barst de boel explosief uit waarbij brandend materiaal en gassen in grote hoeveelheden vrij komt.

SPOILER

Om spoilers te kunnen lezen moet je zijn ingelogd. Je moet je daarvoor eerst gratis Registreren. Ook kun je spoilers niet lezen als je een ban hebt.

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Op donderdag 10 februari 2011 13:59 schreef zenkelly het volgende:
http://volcanoes.usgs.gov/hvo/cams/KIcam/Die was toch al actief?

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Op donderdag 10 februari 2011 13:59 schreef zenkelly het volgende:
http://volcanoes.usgs.gov/hvo/cams/KIcam/Die was toch al actief?

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Op donderdag 10 februari 2011 14:52 schreef kahaarin het volgende:

[..]

Die is bijna altijd actief, grote explosies kunnen echter ook nog, die zijn wel zeldzaam gelukkig.
Je hebt natuurlijk actief en hyperactief.

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Op donderdag 10 februari 2011 15:02 schreef Frutsel het volgende:
Voor de liefhebbers

A Year of Volcanic Activity in Pictures

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Op donderdag 10 februari 2011 14:58 schreef Frutsel het volgende:

[..]

dat dus

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A small earthquake shook the town of Volcano on the Big Island this morning.

The magnitude 3.6 quake struck at about 8:30 a.m. and was centered about 4 miles south of Volcano at a depth of about 2.6 miles, according to the U.S. Geological Survey.

A magnitude 3.2 quake shook the same area yesterday at about 1:08 p.m., according to the USGS. Yesterday's quake was centered about 5 miles south-southwest of Volcano at a depth of 1.9 miles.

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Earthquake swarm near Kilauea Volcano
HAWAII VOLCANOES NATIONAL PARK (HawaiiNewsNow) - Scientists at the Hawaiian Volcano Observatory on the Big Island of Hawaii are looking at a swarm of small earthquakes that shook Kilauea Volcano last week.

There were at least 42 earthquakes in the area within a 24 hour period that started Thursday. Geophysicists said while the temblors have diminished, they are another clue in what may come next at the world's most active volcano.

"Kilauea's summit has been extending, meaning that more magma is coming up to the summit than is going out to the east rift zone," said Jim Kauahikaua, the observatory's scientist in charge. That means there's move lava underground that's headed toward the actual Kilauea caldera, rather than the zone where most of the activity has been in the volcano's 28 year long eruption.

According to Kauahikaua, the extension of the crater has been going on for a few months.

"This extension of the summit is also reflected in the rise in lava in the Halemaumau vent," he said.

"All of them are indications that pressure is increasing in the magma chamber below the summit."

Besides spewing smoke and giving visitors a good show, the Halemaumau vent has served as a window to what's going on beneath the summit since it opened up about three years ago. Lava has been rising in the vent, and is now just 260 feet below the crater's surface.

While that's been going on, the east rift has remained active.

"There's also been increased activity within the Pu'u 'O'o crater," said Kauahikaua. "There are three different holes that emit lava at different times."

And that lava has been continuing through tubes toward Kalapana and the Kalapana Gardens Subdivision, slowly devouring homes there in the pats few months as the lava continues its slow crawl to the sea.

The eruption itself is showing no signs of stopping.

But the big question remains: Will there be even more lava at the summit vent?

"We're all wondering what it's going to do," Kauahikaua said. "It could rise high enough to the floor of Halemaumau and be visible to more people. It could drop out and all go to the east rift zone.

"We're all waiting to see what happens."

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Op dinsdag 15 februari 2011 20:15 schreef Isiolo het volgende:
Prima, vulkaan in de achtertuin

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Op woensdag 16 februari 2011 14:52 schreef Isiolo het volgende:
ja daarom juist, anders is t ook geen supervulkaan

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A supervolcano is a volcano capable of producing a volcanic eruption with ejecta greater than 1,000 cubic kilometers (240 cubic miles).

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Op woensdag 16 februari 2011 14:57 schreef lipjes het volgende:

[..]

Laacher is ook geen supervulkaan, met een VEI6 is die wel hevig, maar niet catastrofaal.
Behalve natuurlijk voor de bewoners.
Laacher ligt in een dichtbevolkt gebied, plus daarbij dat heel duitsland redelijk dichtbevolkt is.
Hier in nederland zullen we er, afgezien van limboland, weinig schade van leiden, behalve als de wind onze kant op staat, maar dat is dan alleen de as

Tevens is dit de definitie van een supervulkaan

[..]

En dit van een VEI6 eruptie

[ code verwijderd ]

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Op woensdag 16 februari 2011 19:53 schreef Isiolo het volgende:

[..]

Toch wordt deze ingedeeld bij de Supervulkanen.
Overigens is de term supervulkaan ooit in het leven geroepen door BBC programma ?
En is definitie vei6 niet van belang dan ? Omdat Laacher meer schade en problemen kan geven dan de uitbarsting van bijvoorbeeld Pinatubo die ook vei6 heeft. Met andere woorden deze kan dus wel degelijk catastrofaal zijn voor West Europa.

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Op woensdag 16 februari 2011 22:21 schreef Frutsel het volgende:
http://www.bigislandvideo(...)apse-filmed-by-usgs/

Mooi stuk + video over recente lava bij Kilauea.

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Op donderdag 17 februari 2011 21:49 schreef Isiolo het volgende:
grappig dat er wel overal momenteel wel wat activiteit is. Zit er iets aan te komen ?

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February 21, 2011 MANILA, Philippines Hundreds of villagers fled to safety Monday after a restive volcano belched ash and smoke into the sky after a monthlong lull, officials said. Despite Mount Bulusans ash explosion, its 13th since November, there were no signs of an imminent eruption involving magma pushing out of the cone, said government chief volcanologist Renato Solidum. The huge plume of grayish smoke shot up to more than a mile (2 kilometers) toward the blue sky, with the ash drifting southwest toward four farming towns in Sorsogon province, where about 1,200 villagers fled to emergency shelters and houses of relatives, said Benito Ramos, who heads the governments disaster-response agency. Army trucks helped villagers move from communities hit by the ashfall and emergency teams handed out protective masks, Ramos said. There have not been any government orders to evacuate communities near the mountain. While many scrambled to safety, residents streamed out of houses in Irosin town to gaze or take pictures of the mid-morning spectacle using their cellphones. Still-hot debris at the peak of Bulusan, one of the countrys 23 active volcanoes, came into contact with water, sparking the explosion. Such steam-driven blasts have happened since November and could continue in coming weeks, Solidum said. -Macon.com Star

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2000 evacuated after Bulusan spews ash
JUBAN,Sorsogon - Two thousand affected residents around Mt. Bulusan were evacuated immediately after the latest ash explosion at around 9:30 a.m. Monday, a military official said.

Lt. Col. Santiago Enginco, commanding officer of the 49th Infantry Battalion based in Juban town, said he immediately deployed 5 military vehicles to assist the evacuation at around 10 a.m.

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Op maandag 21 februari 2011 09:28 schreef zenkelly het volgende:

[..]

quote:

Ik probeer nog een keer het Bulusan topic leven in te blazen

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Er was een topic over in november, maar de animo was daar erg groot zag ik
Evacuaties na uitbarsting vulkaan op de Filipijnen

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Op maandag 21 februari 2011 09:45 schreef zenkelly het volgende:
[..]

Had dat topic niet eens gezien,. .Je bent ook de enige die gepost heeft .

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Mt Baker: Eruption is overdue...
Cloaked in snow and visible across the U.S. border from Vancouver, Mount Baker looks like a gentle giant.

But volcanologist Mark Jellinek, at the University of British Columbia, says Mount Baker, located in Washington state, is probably overdue for an eruption -an explosion he and his colleagues hope to predict well in advance based on the how much "wagging" goes on inside the volcano as magma rises up from the deep.

According to their research, to be published Thursday in the journal Nature, volcanoes shake and vibrate in distinct and predictable ways when they are going to blow because giant columns of magma "wag" back and forth inside them.

"It's basically like a dog wagging its tail," says Jellinek, except that the magma columns are up to a kilometre high.

They are so powerful they shake mountains and when they blow they can hurl hot ash up to 40 kilometres into the atmosphere, with sometimes devastating impact as the ash spreads across surrounding areas. (Vancouver is far enough from Mount Baker it will be spared the worst effect, though Jellinek says he expects the city could be covered in a thick layer of fine ash. "It would make a huge mess," he says.)

It has long been known that volcanoes vibrate at pretty much the same frequency before they explode, whether they are in B.C., Alaska, the Caribbean or the Philippines. But until now no one has been able to explain why volcanoes that are so different in size and character behave in the same way.

"Magma wagging" is the most plausible explanation yet, and may help forecast deadly eruptions, say Jellinek and David Bercovici from Yale University and co-author of the new study.

Their model of the "magma wagging" explains why tremors in nearly all explosive volcanoes stay in a narrow band of frequencies that can be felt but are so high humans can't hear them. Just before and during eruptions, the frequency climbs to a higher pitch, and the range spreads out.

It provides "a fundamental mechanism for tremor that is generic to nearly all volcanically explosive systems," the researchers report.

As Bercovici put it, the shaking is both a warning "and a vital clue about what is going on in the belly of the beast."

There can be weeks to months of warning before volcanoes erupt but some come to life quickly. "The most recent eruption in the Aleutians in Alaska had five hours notice," says Jellinek. "But in general we do better than that."

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Op zondag 27 februari 2011 01:17 schreef zenkelly het volgende:
THNXS!!

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Op maandag 28 februari 2011 18:35 schreef Isiolo het volgende:
http://www.boston.com/big(...)er_journey_to_t.html

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Eruptions continue at Fuego volcano, Guatemala. During the night incandescent explosions ejected lava 100 m above the crater and sent avalanches down surrounding valleys. Rumbling sounds were heard and audible degassing lasted up to six minutes at a time. Ash emissions reached a height of 800 m above the crater and drifted south and southwest.

quote:

On 3rd March 2011 an explosion occurred from Caliente crater at Santa Maria volcano in Guatemala. Ash emissions reached 10,800 ft above sea level and produced ashfall in towns to the west and southwest of the volcano. The explosion generated a pyroclastic flow which moved 2.5 km down the southwest flank. Activity continued on 4th March with moderate explosions ejecting ash to a height of 11,000 ft above sea level, and ash fall on surrounding farms.

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Mt Ruapehu (NewZealand) is heating up
Mount Ruapehu is heating up -- but there's no need to panic, a volcanologist says.

Ruapehu's Crater Lake has reached 40degC, the third-highest temperature recorded at the lake since 2002.

Other signs, including gas output, minor seismic activity and changes in lake chemistry were also typical of a volcano in a heating cycle, GeoNet vulcanologist Tony Hurst said.

Ruapehu entered its current heating cycle last October, the eighth since the lake was re-established in 2002 after the 1995-1996 eruptions.

Ruapehu is on volcanic alert level one, which indicates signs of volcano unrest, but Mr Hurst told NZPA that was normal for an active volcano such as Ruapehu.

The colour of the lake might change and steam might be seen wafting off it if sediments on the lake floor were disturbed by increasing gas and heat flows into the lake, he said.

Scientists would continue to monitor the situation.

At 2797m, Ruapehu is the highest mountain in the North Island, and the most recent of the North Island volcanoes to have erupted.

quote:

Four volcanic quakes at Mayon volcano
At least four volcanic quakes and moderate steaming were noted at Mayon Volcano in Albay in the last 24 hours, state volcanologists said on Wednesday.

The Philippine Institute of Volcanology and Seismology (Phivolcs) also said a fair crater glow can be seen by the naked eye Tuesday night.

"The seismic network around Mayon Volcano recorded four volcanic earthquakes during the past 24 hours. Steaming activity from the crater was moderate with white steam clouds drifting towards northwest. Fair crater glow (Intensity II- can be seen by naked eye) was observed last night," it said.

Phivolcs said Alert Level 1 remains in effect over Mayon Volcano, reminding the public not to enter the six-kilometer permanent danger zone (PDZ).

It cited the continuing threat from sudden small explosions and rockfalls from the upper and middle slopes of the volcano.

"Active stream/river channels and those perennially identified as lahar prone areas in the southern sector should also be avoided especially during bad weather conditions or when there is heavy and prolonged rainfall," Phivolcs added.

In Sorsogon, Phivolcs recorded two volcanic quakes and three rockfall events from Bulusan Volcano in the last 24 hours.

Steaming activity at Bulusan's thermal vents was "wispy to weak" while no steaming was observed at the summit crater.

Meanwhile, Taal Volcano in Batangas remained relatively quiet, registering no volcanic quake in the last 24 hours.

Alert Level 1 also remained over Bulusan and Taal