[Vulkanen] The ring of fire #4: Veel aktiviteit!

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Crack At Turrialbla Volcano Getting Larger, Experts Say

Upon closer inspection, experts of the Universidad de Costa Rica (UCR) say that the enormous crater of the Turrialba volcano has gotten larger following last week's activity, which will in turn cause landslides within the crater, which in turn could mean more eruptions.

Unfortunately the cold front that has gripped Costa Rica this weekend has also affected the weather conditions, rain and strong winds, have been clouding visibility of the crater to confirm all the changes.

Geologists and volcanologists were at least able to confirm that the crack on the wall of the volcano is getting larger, confirmed by flybys by helicopters during a break in the weather.

The experts say the constant spewing of gases is causing the crack to get bigger and could collapse the volcano's crater wall, causing the volcano to spew out the falling material.

Area residents, as well as control posts around the volcano, report feeling seismic activity.

The recommendation is to stay clear of the area and authorities are restricting access to the national park, evacuating anyone found within the safety zone

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Large pyroclastic flows from Montserrat's Soufriere Hills Volcano

BRADES, Montserrat (GIU) -- Scientists at the Montserrat Volcano Observatory (MVO) confirmed there was a large pyroclastic flow forming event occurred at Soufriere Hills volcano on Friday afternoon around 2:49pm.

The island came to a temporary standstill as everyone took in the sight of the massive ash cloud that exploded but amazingly did not send much ash and no ballistic material into inhabited areas. Several residents remarked that they had not seen an ash cloud that broad since the early days of the volcano’s reawakening in the mid 1990s.

This afternoon’s event Dr Paul Cole, MVO Director confirmed was similar to the summer 1997 explosion. “A collapsing fountain of tephra, associated with ballistic fragments, was observed at the start of the event on the northeastern side of the volcano. We do not believe that there was major collapse of the dome but significant amount of material was lost.”

Cloud cover around the top of the volcano is inhibiting visibility and scientists are not able to tell if the dome which has been growing rapidly since December has diminished considerably.

According to the MVO statement on the event, “Large pyroclastic flows moved both to the northeast, down towards the old airport, to the northwest down Tyers Ghaut, and into the Belham Valley these flows reached as far as approximately 300 m upstream of the Belham crossing. Pyroclastic flows also moved to the west towards Plymouth, although it is presently unclear whether they actually reached the sea. The event lasted about 11 minutes and seismicity returned to background levels rapidly.”

The Hazard Level is 4. There is no access to Zone C and only daytime access (6:30 am to 5:30 pm) to Zone B.

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Nyamuragira Volcano, Democratic Republic of Congo

Eruptions continue at Nyamuragira volcano in the Democratic Republic of Congo. Lava could cover the Goma and Sake road within weeks. Ash and gas emissions from the volcano have caused health problems for residents. Drinking water from open springs and rainwater catchments in Sake, Kingi and Rusayo have been contaminated by ash. Health centres at Sake and Rusayo have reported increasing cases of diarrhoea, and eye diseases. People around the volcano have reported death of domestic animals and damage to crops. It is estimated that 52,096 people are affected, including: 7,901 from Mugunga (Mumbabiro), 13, 000 from Rusayo and 31,195 from Sake & Kingi localities.

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Volcano-like eruptions in Arunachal

TANAGAR: In a very rare phenomenon on Indian soil, volcano-like eruptions have triggered large-scale forest fires that are threatening vast tracts

There is no official word on these "eruptions" that have occurred in the last few days in the Dehu Mountain range in Kurung Kumey district.

Sources from the remote area said a forest fire has broken out at nearby Langa Tata Mountain situated in between Yangte and Chambang. Arunachal West MP Takam Sanjay has requested CM Dorjee Khandu to seek help from the Geological Survey of India, Department of Mines and Minerals and Forests to investigate into the phenomenon.

In August 2007, similar eruptions had disturbed residents near Kimin in Lower Subansiri district, in which coal-like substances were detected after the remains had cooled down. While scientists from GSI and the Arunachal government's geology and mining department collected evidence, they didn't confirm presence of lava.

Local authorities claimed the fires then were caused by electric short-circuit that generated enough heat to
melt stones around a 200sq metre area.

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Inferno may be a volcano???
Itanagar: The forest of Kurung Kumi district at Chambang in Arunachal Pradesh has been facing a massive inferno for past few days. The fire has engulphed the entire forest and created panic among people in the area as they are discussing of having volcano instead of fire.

According to the Geological Survey of India (GSI), there are only three active volcanoes in the country and they all located in Anadaman & Nicobar Island which is too far from Arunachal Pradesh as the authority has also denied of having any such reports.

Similar incident of fire occurred erstwhile in the region but the facts were against of having any volcano. The fire has perturbed the Member of Parliament, Sanjay Takam, who asked the Chief Minister Doorjee Khandu to enquire the incident and take necessary initiative in this regard.

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Underwater volcano blows top

An underwater volcano erupted Wednesday morning about 5 kilometers north-northwest of Iwo Jima (Iwo To), sending a plume of white ash and steam into the air.

The eruption of the Fukutokuoka no Ba undersea volcano -- which last erupted in July 2005 -- was discovered at about 7:45 a.m. by a Japan Coast Guard patrol boat. According to the coast guard, the volcano is about 1,300 kilometers south of Tokyo, and has also erupted in 1904, 1914 and 1986. In each case small islands were formed, all of which, however, eventually sank back into the ocean.

Since around the 1950s, the sea in the area has regularly changed color, and turned yellow-green last December

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Volcano erupts on Caribbean island

A volcano on the tiny Caribbean island of Montserrat has shot a plume of ash an estimated nine miles into the sky, one of its most dramatic events since a devastating 1997 eruption that drove away half the population.

The partial collapse of the dome over the volcano's crater also unleashed flows of hot gas and rocks, triggering sirens for the evacuation of about 20 people from a nearby village.

Paul Cole, director of the Montserrat Volcano Observatory, said it appeared to be the most material shed by the volcano in about four years.

The dome has crumbled several times since the volcano became active in 1995, and Mr Cole said it is possible that activity would settle down now as the dome builds itself up again.

He said there was no immediate cause for concern about more dangerous activity.

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Wandelaar valt in actieve vulkaan

WASHINGTON - Een Amerikaanse wandelaar is in de krater van de actieve vulkaan Mount Saint Helens gestort in de noordwestelijke staat Washington.

Hulpdiensten zetten een flinke reddingsactie op touw en wisten tot op zo'n 15 meter van het slachtoffer te komen, maar ze konden hem toch niet helpen.

De 52-jarige man wilde zich maandag bij de krater laten fotograferen, toen het sneeuwdek ineens inzakte.

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Sakurajima volcano in southern Japan erupted more than 400 times during 2009, and activity is increasing in early 2010. The Advanced Land Imager (ALI) aboard NASA’s Earth Observing-1 (EO-1) satellite captured this natural-color image of the erupting volcano on February 15, 2010. Gray ash is visible in the plume that extends northeast (towards the lower-right) of the volcano. Ashfall is a regular occurence at the daikon and mandarin farms surrounding the volcano, as well as the nearby cities of Kagoshima and Kirishima.

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Eyjafjoll volcano, Iceland
An earthquake swarm began under Eyjafjoll volcano in January 2010. There was a 40 mm inflation of the volcano. At the beginning of March 2010 over 3000 earthquakes were measured in a 24 hour period, with a maximum at magnitude 3.1. The last eruptions at Eyjafjoll volcano were in 1821-23.