abonnement Unibet Coolblue Bitvavo
  Moderator vrijdag 25 november 2011 @ 20:45:34 #51
8781 crew  Frutsel
pi_104819218

quote:
Exhalacion del volcan Popocatepetl el 20/11/2011
pi_104823319
Dan sta je toch even raar te kijken, als 'opeens' (als leek zijnde) een vulkaan voor je ogen uitbarst.
Als het niet met een hamer te repareren is, is het een elektrisch probleem.
  Moderator zondag 27 november 2011 @ 14:05:23 #53
8781 crew  Frutsel
pi_104875545
quote:
0s.gif Op vrijdag 25 november 2011 21:50 schreef Resistor het volgende:
Dan sta je toch even raar te kijken, als 'opeens' (als leek zijnde) een vulkaan voor je ogen uitbarst.
Lijkt me dat het nog gevaarlijk kan zijn ook... maar goed, dat ding barst wel vaker uit dus misschien weten de bewoners wel wanneer het echt link wordt en wanneer niet.
  dinsdag 29 november 2011 @ 00:21:03 #54
151456 Tokamak
Bad shrooms...
pi_104956106
Niet echt het juiste topic daarvoor.
  Moderator dinsdag 29 november 2011 @ 08:48:11 #56
8781 crew  Frutsel
pi_104956701
quote:
Colombia waarschuwt voor uitbarsting Galeras
Het Colombiaans geologisch instituut (Ingeominas) heeft de evacuatie aanbevolen van zowat achtduizend mensen die in de buurt wonen van de vulkaan Galeras, in het zuiden van het land. De vulkaan toont een verhoogde activiteit en er wordt gevreesd voor een uitbarsting.

Het gaat om een waarschuwing van het niveau "oranje", het tweede niveau op een schaal van vier. "Dat houdt in dat er tekenen zijn van een erg waarschijnlijke uitbarsting in de komende dagen of weken", aldus Marta Calvache, onderdirecteur van Ingeominas.

De 4.270 meter hoge vulkaan, die niet ver van de grens met Ecuador ligt, is de laatste twintig jaar constant actief. De meest dodelijke recente uitbarsting dateert van 1993. Daarbij kwamen negen mensen om het leven. (belga/jv)
  dinsdag 29 november 2011 @ 10:43:23 #57
151456 Tokamak
Bad shrooms...
pi_104959149
quote:
0s.gif Op dinsdag 29 november 2011 07:56 schreef Scrummie het volgende:
Niet echt het juiste topic daarvoor.
Let ff niet op de naam van het filmpje ;)
  Moderator woensdag 7 december 2011 @ 13:56:02 #58
8781 crew  Frutsel
pi_105293354
quote:
Alertstatus Mt Sindoro (Java Indonesia) raised
After the activity continued to increase since last October, the status of Mount Sindoro in Waterford and Wonosobo regency, Central Java, Monday (5 / 12) night, upgraded its status from active to normal alert.

Sulfatara bursts of smoke and hot mud around the crater of Mount Sindoro getting bigger and growing number. In addition, the seismic activity of Mount Sindoro also increasing, so the Center for Volcanology and Geological Hazard Mitigation, improve the status of Mount Sindoro.

Increase in alert status of Mount Sindoro set on Monday around 20.00 West Indonesia Time. Communities are asked not to panic despite increased alert status. Since the 1970 phreatic eruption ago, Mount Sindoro ralatif quiet activities. (Riz)
pi_105569045
quote:
Kolumbos submarine volcano (Santorini, Greece): 3.2 magnitude earthquake
At 19h22 GMT (21h22 local time), a 3.2 earthquake occurred at the little-known submarine volcano Kolumbos ca. 8 km NE of Santorini, Island, Greece. This marks one of the largest events in recent months.

The submarine volcano whose peak rises to just 18 m below sea level, is located on the tectonically active SW-NE fault system across Santorini which confines most volcanic vents of the Santorini volcanic complex in the past 500,000 years.

Kolumbus volcano last erupted in September 1650 following a year of frequent earthquakes. The eruption produced a large explosive pumice eruption, with ash fall recorded as far as Turkey, and built a temporary island. The main phase of the eruption triggered a devastating tsunami. Toxic gasses killed more than 25 people and hundreds of livestock on Santorini by suffocation (probably H2S).

There is no reason to state that new activity from Santorini or Kolumbus is likely in a foreseeable future but on the other hand, there are very few data available, unfortunately, to judge the situation.

We regret that the Greek monitoring institutes are not publishing more details about the ongoing activity. Access to important earthquake details such as as their depth, are not published (they are available for earthquakes in all the other regions in Greece, raising some suspect why not for Santorini...)
  Moderator dinsdag 20 december 2011 @ 11:33:29 #60
8781 crew  Frutsel
pi_105812790
quote:
Vulkaanuitbarsting bij Yemen
Lokale vissers uit Salif in Yemen hebben maandagmelding gemaakt van een vulkaanuitbarsting in de Rode Zee. Het fenomeen vindt plaats bij Saba Island, die deel uit maken van de Al-Zubair archipel. De vulkaan bevindt zich op circa 30 zeemijlen van Salif City.

Volgens de vissers kan de vulkaan van afstand goed worden waargenomen en lavabommen zouden 20 tot 30 meter hoog het water uit schieten. Het zou de eerste vulkaan zijn die in dit gebied actief wordt waargenomen.
Tijd voor foto's en video's :P
  vrijdag 30 december 2011 @ 15:14:07 #61
6067 Turbomuis
Kruimeltjes zijn ook cake
pi_106205712
quote:
Vulkaan in Alaska spuwt rook: luchtvaart gewaarschuwd

ANCHORAGE - Wetenschappers in de Verenigde Staten hebben een waarschuwing afgegeven over de activiteit van de Cleveland-vulkaan in Alaska. Uit satellietfoto’s is gebleken dat Cleveland een kleine uitbarsting heeft gehad, waarbij rook en as vijf kilometer hoog de lucht in is gespuwd. De vulkaan ligt precies in de lijn van vliegroutes tussen Noord-Amerika en Azië.

Cleveland ligt op Chuginadak, een eilandje op de eilandengroep Aleoeten ten zuidwesten van het vasteland van Alaska.

In juli waarschuwden wetenschappers al dat Cleveland zich lijkt op te maken voor de grootste uitbarsting sinds 2001. Toen spoot de vulkaan asdeeltjes dertien kilometer de lucht in.

Het grootste risico van Cleveland is dat het rond de vulkaan ontbreekt aan meetapparatuur. De vulkaan ligt te afgelegen om goed te kunnen worden gevolgd. De kans bestaat daardoor dat piloten van overvliegende toestellen door een uitbarsting verrast worden.
bron
I give myself very good advice
But I very seldom follow it
That explains the trouble that I'm always in
  dinsdag 3 januari 2012 @ 08:28:08 #62
176873 marcel-o
¯¯¯¯¯¯¯¯¯¯¯¯
pi_106343967
Was deze al bekend?

quote:
Duitse supervulkaan op uitbarsten?


Onder de wateroppervlakte van de Laacher See, een kratermeer vlakbij Koblenz, slaapt al circa 12.900 jaar een supervulkaan. Maar de laatste maanden zijn er verontrustende signalen die er op kunnen wijzen dat de vulkaan stilaan uit zijn lange slaap aan het wakker worden is. Bij een eventuele uitbarsting kan de Laacher vulkaan gemakkelijk 5 biljoen kubieke meter as en vulkanisch puin spuwen, vergelijkbaar met de uitbarsting van Pinatubo in juni 1991.


(Laacher See panorama)

Vulkanologen zijn er van overtuigd dat de supervulkaan nog steeds actief is, omdat er nog steeds koolstofdioxide opborrelt - wat bewijst dat de magmakamer van de vulkaan aan het 'ontgassen' is - aan de zuidoostkant van het kratermeer. De laatste maanden werden er ook verschillende kleine aardbevingen waargenomen in de directe omgeving van de Laacher See. De Laacher See bevindt zich 259 meter boven zeeniveau en heeft een omtrek van circa 8 kilometer.


(Koolstofdioxide borrelt op in de Laacher See)

Omdat de Duitse supervulkaan iedere 10- tot 12.000 jaar explodeert, en de laatste uitbarsting al ruim meer dan 12.000 jaar geleden is, kan de vulkaan elk ogenblik uitbarsten. Volgens experten zou een eventuele uitbarsting van de supervulkaan kunnen leiden tot wijdverspreide verwoestingen, massa evacuaties en zelfs een korte termijn globale afkoeling door de tonnen gasdeeltjes die de atmosfeer bevuilen.
bron
| Wordfeud: marcel-o |plug.dj/uptempo |<-- draai zelf je platen
  dinsdag 3 januari 2012 @ 09:09:55 #63
1872 Jumparound
bedankt voor de vis
pi_106344389
quote:
0s.gif Op dinsdag 3 januari 2012 08:28 schreef marcel-o het volgende:
Was deze al bekend?

[..]

bron
ja :)
Inorbit: zeg dat dan typluie triangeljosti
Beauregard: Een beetje FOK!ker laat het brood door z'n moeder smeren.
Ecosia
ek's 'n flash drive, jy's 'n floppy
  Moderator dinsdag 3 januari 2012 @ 11:06:18 #64
8781 crew  Frutsel
  Moderator donderdag 5 januari 2012 @ 10:23:32 #65
8781 crew  Frutsel
  Moderator donderdag 5 januari 2012 @ 11:50:53 #66
8781 crew  Frutsel
pi_106432713
quote:
Seven Indonesian volcanoes at level-3-alert status
JAKARTA: The Centre of Vulcanology and Geological Hazard Mitigation (PVMBG) on Thursday declared that seven out of 127 volcanoes in Indonesia are in danger status of level III (alert), according to China’s Xinhua news agency.

The volcanoes are namely Mount Papandayan in West Java province, Mount Lokon and Mount Karangetan of North Sulawesi province, Mount Kawah Ijen in East Java province, Mount Anak Krakatau in the border of Banten and Lampung provinces, Mount Gamalama at North Maluku province and Mount Lewotolo in East Nusa Tenggara province, respectively.

Out of the seven volcanoes, authorities are focusing on Mount Kawah Ijen, Mount Gamalama and Mount Lewotolo as their eruption impact is the biggest compared to others, said Head of the National Agency of Disaster Mitigation BNPB) Syamsul Muarif.

He said that the BNPB and regional agencies of disaster mitigation are enhancing preparation and planning to anticipate the impact of the volcanoes activities.

Explaining further, he said that Mount Kawah Ijen contains huge danger if it erupts as it threatens as many as 9,000 people living surround the volcano.

“The biggest threat of Mount Kawah Ijen is not hot cloud, flamed material launch or volcanic ash, but is within its volcanic lake containing 30 million metre cubic of water with deadly acid level,” he said, expressing disappointment that people refuse to evacuate despite several warnings.

While, increasing activities of the Mount Gamalama will expose and force, 638 people to take refuge. Last year, there people were killed by cold lava flood of the volcano following heavy rain on the top of the volcano.

Mount Lewotolo, with eruption type of explosive holds primary danger of volcanic bombs and hot cloud. However, Syamsul said that data shows that there has been no strong eruption that claims lives since 1660.

Although Mount Lokon in the city of Tomohon of North Sulawesi has erupted on Dec 27, last year, he said such incident still does not force people to take refuge.

“Mount Anak Krakatau that erupts almost every day with small intensity does not pose any danger to people as it locates in a strait connecting the islands of Java and Sumatra.

The volcano, he said is in a growth phase and there is a small possibility that it erupts like what happened in 1883, triggering strong tsunami and claimed thousands of lives. – Bernama
  Moderator / Redactie Sport / Weblog donderdag 5 januari 2012 @ 11:58:03 #67
17650 crew  rubbereend
JUICHEN
pi_106432974
voor de mensen die het gemist hebben Uitbarsting Etna
DeLuna vindt me dik ;(
Op zondag 22 juni 2014 12:30 schreef 3rdRock het volgende:
pas als jullie gaan trouwen. nu ben je gewoon die Oom Rubber die met onze mama leuke dingen doet :)
pi_106452545
Gisteren hadden ze bij rtl nieuws van 19:30 het over de Laacher vulkaan
dat die weer aan het pruttelen is. Maar dat doet ie altijd al
maar het zou nu wat meer zijn dan normaal


Scrolde ff omhoog en zag het bericht al staan
<a href="http://www.vwkweb.nl/" rel="nofollow" target="_blank">[b]Vereniging voor weerkunde en klimatologie[/b]</a>
<a href="http://www.estofex.org/" rel="nofollow" target="_blank">[b]ESTOFEX[/b]</a>
  Moderator vrijdag 6 januari 2012 @ 13:27:29 #69
8781 crew  Frutsel
pi_106480008
quote:
Evacuaties na activiteit Lewotolo vulkaan in Indonesie
KUPANG, OOST NUSA TENGGARA - Honderden mensen in de buurt van de Lewotolo vulkaan op het eiland Lembata in de provincie Oost Nusa Tenggara zijn donderdag geëvacueerd nadat de vulkaan plotseling in activiteit toenam. Dit meldde persbureau Antara.

Zo'n 500 dorpelingen hebben hun huizen verlaten en zijn naar het stadje Lewoleba getrokken. Er zal bovendien snel een bijeenkomst gehouden worden op regionaal niveau om te kijken welke acties er verder nodig zijn. Dit meldde vice-districtshoofd Viktor Mado Watun van lembata.

Er komt op dit moment een dikke zwarte rookwolk uit de krater van de vulkaan. In het gebied is bovendien een sterke zwavellucht te ruiken. Ook produceert de vulkaan regelmatig een donderend geluid. Inwoners besloten dan ook en masse om hun dorpen te verlaten om veiliger gebieden op te zoeken.

Er is vanuit de overheid nog geen officieel evacuatie-plan opgesteld. Wel werd de alarm-status van de vulkaan in de voorbije dagen twee maal verhoogd, van status 1, normaal, naar status drie, op een schaal van vier.
  Moderator maandag 9 januari 2012 @ 10:17:14 #70
8781 crew  Frutsel
pi_106593803
quote:
Chilian ONEMI raises status of Lascar Volcano
This first came up in the news yesterday, but I thought it deserved its own spot. Lascar, one of the more active volcanoes of northern Chile, was placed on heightened alert status by the ONEMI (Chilean Emergency Management) on advice from the SERNAGEOMIN (Chilean Geologic Survey). The latest report from Lascar says that over 300 small earthquakes (pdf) have occurred at the volcano in the last 26 hours, leading to an elevation of its status to Yellow – however, there have been no indications of increased fumarolic activity at the volcano. Lascar has the potential to produce a large eruptive column – the 1993 eruption sent ash as fall east as Buenos Aires – with pyroclastic flows that could reach nearby towns such as Talabre. The volcano has been through a number of cycles of significant explosive activity over its >43,000 year history. However, recent activity is mostly lava dome formation in the summit crater followed by crater collapse and vulcanian to plinian explosive eruptions such as the major eruption of April 1993. However, it also have the potential to produce small explosions that will only dust ash on the countryside surrounding the volcano as it has done at least 6 times in the last decade. ONEMI is preparing for possible evacuations for people near the volcano – mostly either miners in the area or tourists at San Pedro de Atacama. If anything does occur, there is a webcam pointed at Lascar to see the action.
  Moderator maandag 16 januari 2012 @ 10:30:36 #71
8781 crew  Frutsel
pi_106862848
quote:
25 volcanoes in Indonesia show abnormal activity or are on alertstatus
Padang, West Sumatra. Twenty-five volcanoes in Indonesia are now showing abnormal activity or have been put on alert or watch status, presidential special aide Andi Arief said here on Saturday.

“According to official data, 25 volcanoes are now under alert or watch status and they must be given priority with regard to disaster mitigation planning at district or city levels,” he said at a workshop on journalists’ role in disaster management.

He said in West Sumatra there were two volcanoes that need to be closely watched, namely Mount Marapi and Mount Talang, as they are still under alert status.

Mount Marapi is located in Agam and Tanahdatar districts and rises 2891 meters above sea level, and Mount Talang (2597 meters above sea level) in Solok district was located around 40 kilometers from the provincial capital Padang.

Apart from the two volcanoes, the government and regional disaster management agencies were also giving priority attention to Mount Papandayan in West Java, Mount Karangetan and Lokon in North Sulawesi, Mount Ijen in East Java, Mount Gamalama in North Maluku, Mount Krakatau in Banten and Lampung and Mount Lewoloto in East Nusa Tenggara.

He said “it is not impossible that volcanoes that are now still normal could change to become abnormal due to earthquakes that have happened to trigger magma in the mountains to increase their activity, and therefore alertness and readiness of the people must continue to be maintained.”

Andi said earthquakes below five on the Richter Scale could trigger magma in the volcanoes to rise and so people must not only be alert over big but also small tremors.

The 4.4 magnitude earthquake like the one in Singkawang, West Kalimantan, is one of the examples, where people had never predicted before that it could happen there, he said.

“The small magnitude quake is now being studied by researchers with regard to minimizing the damage in case an eruption happens in the country as there are a lot of volcanoes in Indonesia,” he said.
  maandag 16 januari 2012 @ 10:55:29 #72
351045 Ryker
Ik werk met mensen zoals jij
pi_106863539
http://indahnesia.com/volcano/volcano.php ^O^ Inderdaad interressant site!
Grtz, Theo
follower since 2001, active in 2011
  Moderator dinsdag 17 januari 2012 @ 15:58:13 #73
8781 crew  Frutsel
  zondag 22 januari 2012 @ 14:48:31 #74
360589 1boefje
I love pk's!
pi_107097066
Nog een theorietje gevonden op het grote WWW:

2012 completes 74,000 year cycle of super volcano

2012 completes a 74,000 year cycle of super volcano – all signs point towards a massive under water eruption

India Daily Technology Team
Jan. 8, 2006

The underwater volcanoes are increasing exponentially. The harmonic tremors are also on a steep rise. A 74,000 year cycle of devastating super volcano nears as we approach 2012. The December 2004 Tsunami epicenter points towards a possible site for the super volcano.

According to some geologists, it is possible that the recent Tsunami is precursor to a massive shift in tectonic plates and a super volcanic eruption in that area dwarfing what happened even 74,000 years back.

The year 2012 is specially mentioned in many ancient civilizations as something to be scared about. Many believe that will the year when human civilizations will be threatened. It is the year some say when the whole human civilization will change forever.

74,000 years back a massive volcano in Sumatra filled the earth’s atmosphere with dark cloud for years. The event reduced the world temperature by 8 to 10 degrees Celsius. Close to 80% of the living beings including humans were dead on the earth. According legends among Indonesia tribes, the calamity was accompanied.

The super eruptions can cause massive calamity devastating all vegetations and farming in the earth causing massive starvation and hunger.

According to some geologists, the next one is due around 2012 based on that 74,000-year cycle. Many are pointing towards Yellow Stone National Park in America where Earth’s crust is wafer thin in geological scale.

Mount St. Helens has started erupting. The Geological calm of the world is extremely disturbed. Tsunamis, Landslides, Minor earthquakes in tune of thousands are shaking the whole world’s tectonic plates.

Most countries are reporting unusual weather patterns and excessive major and minor quakes. In many parts of the world lakes are losing their water and manifesting a sinkhole. Mud volcanoes and geysers in Yellow Stone National Park are manifesting excessive temperature rise and increased frequencies of eruptions.

Source:
http://www.indiadaily.com/editorial/6320.asp
pi_107118062
Wauw... zou zo'n vulkaan dan echt precies om elke 74.000 jaar uitbarsten? ;)
pi_107119966
quote:
0s.gif Op zondag 22 januari 2012 21:57 schreef MikelenniuM het volgende:
Wauw... zou zo'n vulkaan dan echt precies om elke 74.000 jaar uitbarsten? ;)
8 December 2012 op de Juliaanse kalender (met dank aan Julius Caesar) of
8 Teveth 5773 op de Joodse kalender of
7 Savar 1434 op de Islamitische kalender of
1 Dey 1391 op de Perzische kalender of
30 Agrahayana 1934 op de civiele Indiase kalender

Klinken eenmaal niet zo spannend als de 21e dag van de 12e maand (vroeger was het de 10e maand) 2012

:+

(met dank aan http://www.fourmilab.ch/documents/calendar/ )
Als het niet met een hamer te repareren is, is het een elektrisch probleem.
  zondag 22 januari 2012 @ 22:34:48 #77
11839 DemonRage
[ Eindhoven ]
pi_107120463
Lijstje: http://en.wikipedia.org/wiki/World's_largest_eruptions

Uitbarstingen van supervulkanen worden nog ondergesneeuwd door LIP-events (Large Igneous Provinces), waarvan eentje in Siberië zo'n 250 miljoen jaar geleden bijna al het leven op Aarde heeft uitgeroeid. Na die massa-uitsterving is het tijdperk van de dinosaurussen begonnen.
  Moderator maandag 30 januari 2012 @ 13:56:25 #78
8781 crew  Frutsel
pi_107399668
quote:
Santorini quake swarm continues- Greek media pick up news now
The highly unusual swarm of earthquakes SW of Santorini on the main fault zone that also defines the volcanic vents of the region continues with about 10 quakes larger than magnitude 2 during the past 24 hours. 2 of the quakes were magnitude 4 and 4.7, respectively.
Greek media start to pick up the story and become increasingly interested:

Today the wall of silence seems to be falling as a major Sunday newspaper has exclusive interviews with a number of Greek seismologists and geologists on the matter and some information is now public.

1. Inflation
From 1993 until 2010 there was deflation in the caldera of about 1cm/year, since the beginning of 2011 that has changed to inflation centered at a radius of 15 km on the north part of the caldera, rapid episodes of inflation have been recorded at intervals that coincide with bursts in seismic activity. Since August the intensity of the phenomenon warranted a rise to alert level 4 (red), where it has remained ever since.

2. Magma column
A displacement of 107 cubic meters has been located 1km north of the central island of Nea Kameni at a depth of 4 km, it is hypothesized that it is a magma intrusion, located right at the center of the most seismicity active part of the caldera.

3. CO2.
Co2 levels have jumped to 39 tonnes/day along with the emission of other gasses, a rising gas column has been observed outside the port of Thirassia in the caldera (the island on the west rim).

4. Water temperature.
The rise in sea water temperature in the caldera has been confirmed.

Most of the Greek scientists have brushed any concerns saying that conditions are normal and that has happened before, Euthimios Lekkas, geologist from Athens University, even said on TV that there is no danger even of a large earthquake in the vicinity of the island, the next day there were 3 earthquakes magnitude 5 and above, 50 km to the SW at the other end of the fault line.
Noticeable exception, foreign geologists have a very different opinion, Michelle Parks, a geologist from Oxford, mentioned that the evidence points to something important, there is volcanic activity and the volcano is now potentially active at depth.

Consensus is that the volcano has woken up in early 2011, but opinions differ mainly on the lines of nationality of the scientists.
  Moderator dinsdag 7 februari 2012 @ 16:07:58 #79
8781 crew  Frutsel
pi_107716875
quote:
Semeru volcano alert status raised to level 3
A slight increase in activity of Semeru volcano's activity has been observed by the Indonesian Geological Survey in recent weeks and its alert level was raised to 3 (out of 4, "watch") on 3 February 2012, after it had been on level 2 since 16 July 2009.

Only small to moderate eruptions had been occurring over most of the past year. Between 29 December and 15 January, 8 explosions were counted which produced ash clouds up to 600 m high. One explosion threw incandescent bombs to a distance of 300 m from the Jonggring Seloko crater. During 15-29 January, only weak explosions were recorded and a small steam and ash plume rising 25-50 m was observed.

Between 30 and 31 January, 5 explosions were recorded. They produced incandescent fallout in up to 400 m distance. On 2 February at 07:47 local time, a stronger explosion produced incandescent bombs that reached 750 m distance and caused a small avalanche of blocks rolling down a distance of up to 2.5 km (note: no pyroclastic flows). The heightened activity triggered the raise in alert level the following day.

At its present status level of 3, PVMBG recommends to stay away at least 4 km from the summit on the SE side of the volcano and climbers are advised not to approach the Jonggring Seloko crater less than 1 km.
As of 6 February, no significant changes to its activity have been reported by our correspondent on location.
  Moderator dinsdag 14 februari 2012 @ 12:14:14 #80
8781 crew  Frutsel
pi_107963519
quote:
Alertstatus Galunggung (Indonesia) raised
The alert status of Galunggung volcano in West Java, Indonesia, was raised today (Mon 13 Feb 2012) due to an increase of its water temperature and a change in color.

Discoloration of the crater lake had started to be noticed in September 2011, but the changes have increased recently. According to the local volcanologists monitoring the volcano, the whole lake is now of muddy khaki color. In addition to the color change which could be caused by an increase of lake fumarole activity, an steep sudden increase by 13°C of the lake water temperature was detected, based on measurements taken on and before 5 February when it was at normal 27°C, and on 8 Feb, when it was 40°C warm.
Most fish in the lake have died and occasionally dead birds are found at the shore.
No other signs of a possible volcanic awakening were detected at the moment. The ph level of the water is still at normal levels 7-8, and there is no sulfur smell. Also, no significant seismic activity has been detected.
Nevertheless, PVMBG has now placed the volcano at alert level 2 ("watch", on a scale of 1-4) and recommends to stay away at least 500 m from the lake shore.

The last eruptions of Galunggnug was a small phreatic explosion in 1984, and the major destructive eruption in 1982-83, which produced violent explosions with ash columns reaching 20 km height, pyroclastic flows and large lahars. The eruption destroyed an older lava lake, killed many people and displaced up to 35,000.
The eruption is infamous for the aircraft accident on 24 June 1982: a British Airways Boeing 747 with 262 people on board flew through the ash plume and had to make an emergency descent after the ash caused all 4 engines to fail; fortunately, the plane could land safely.

The present-day crater lake (Danau kawah Galunggung) has a diameter of 1000 m and is 11 m deep and contains a volume of about 8 million m3 of water.
In the middle of the lake, a small 250 x 165 m diameter scoria cone which was produced during the final staged of the 1982-83 eruption rises to 30 m elevation.
A main hazard of the volcano are phreatic and phreatomagmatic eruptions capable of draining the lake and producing mud flows.
  Moderator dinsdag 14 februari 2012 @ 15:42:27 #81
8781 crew  Frutsel
pi_107970677
quote:
Nine small ash explosions at Fuego
Weak ash explosions continue at Fuego volcano. INSIVUMEH reported for 13 February that 9 eruptions were counted, producing plumes up to 500 m high and occasional rumbling noises. A steam plume is rising constantly about 100 m from the crater. The ash drifted 8 miles WSW.
The new lava flow on the southwest flank in the direction of the Taniluya ravine is still active and about 200 m long. Blocks that detach from its front form small block avalanches that reach the vegetation.
  Moderator zondag 19 februari 2012 @ 17:30:21 #82
8781 crew  Frutsel
pi_108154834
quote:
Mt.Fuji Japan: Signs of unrest
Reports are appearing about unrest and signs of a possible awakening of Mt Fuji volcano in Japan.
According to a report which includes an unclear photo of the area, a row of new craters, the largest 50 m in diameter, has appeared on the eastern flank of the volcano at 2200 m elevation. Steam was observed erupting from these vents.

The observation joins other signs suggesting a gradual reawakening: A swarm of earthquakes including 4 of magnitude 5 have occurred northeast of Mt Fuji on and after 28 January. An earlier 6.4M quake occurred under the volcano on 15 March 2011. The report also mentions increased activity from a fumarole vent at 1500 m elevation and hot spring areas at the eastern flank observed since 2003.

These locations seem to be aligned geographically, and are probably connected. Dr. Masaaki Kimura of Ryukyu University is quoted to admit that there is an increased risk of and eruption on the eastern flank and that the status of the volcano should be closely monitored.
  zondag 19 februari 2012 @ 19:21:39 #83
360589 1boefje
I love pk's!
pi_108158977
Weet iemand een goede site om de situaties in Japan te volgen.
Aardbevingen/uitbarstingen. En dan vooral natuurlijk nu mount Fuji ;)
pi_108256906
Spreek je Japans? Of kan je het lezen?
pi_108256930
quote:
New cracks in Canlaon Volcano crater Philipinnes
Three 50 m wide cracks have appeared on on the upper flank of Canlaon volcano (also spelled Kanlaon) near the crater after the M6.7 earthquake on Negros island in the Philippines on 6 Feb 2012.
According to PHILVOLCS, the Philippine volcano monitoring agency, the cracks were caused by the earthquake and are not likely a precursor for a new eruption, which would be the first since 2006, although Canalon is one of the country's most active volcanoes. A more detailed investigation is
planned and the mountain was for now closed for climbers.

Erik Klemetti on his more detailed post on Eruptions Blog mentions rightly that a major hazard from Canlaon volcano are landslides and mud flows, and that these are not necessarily related to an eruption, but can be triggered as well by heavy rain and gravitational instability caused by earthquake movements. In this context, the cracks should be examined and monitored carefully.
  Moderator maandag 27 februari 2012 @ 19:32:36 #86
8781 crew  Frutsel
pi_108474465


quote:
New eruptions at Rincon de la Vieja Costa Rica
It has been almost exactly 14 years since the last eruptive period for Rincón de la Vieja in Costa Rica, but it looks like the volcano might be awakening from its break. Last Thursday (Feb. 22), the volcano experienced two small explosions in the early morning. Seismic records suggest the volcano also had small explosions on Feb. 19 and 20, according to the OVSICORI report for Feb. 25 (PDF). None of the explosions caused any damage to anything near the volcano and there are no reports of ash fall other than in the crater itself. These explosions are very similar in style to the September 2011 explosions that were like phreatic in nature — that is, not new magma but superheated water generated the explosions. Of course, it is likely that new magma intruding the volcano is the heat source for the water, but these explosions could precede a new magmatic eruption by months or years (or lead to nothing at all). The volcano sits within a national park in Costa Rica and after these explosions, the National Emergency Commission has declared the crater area off-limits to visitors.

The last major eruption from Rincón de la Vieja was in 1966, when it produced at VEI 3 event that generated pyroclastic flows. All the way back in circa 1820 B.C., the volcano produced the Río Blanco tephra from a larger VEI 4 eruption. The summit of the volcano hosts a small crater lake (see above), which could potentially add to the initial explosivity of any eruption as the water interacts with erupting magma. There are also abundant mudpots and springs within the national park as well, attesting to the persistent geothermal activity in the area. This geothermal activity is the reason why the Costa Rican government is looking to build a 200 MW geothermal energy plant in the National Park as well.
pi_108920932
De Nevado del Ruiz vulkaan komt tot leven

De Nevado del Ruiz vulkaan, wiens uitbarsting 26 jaar geleden ongeveer 25.000 mensen het leven koste geeft weer tekenen van activiteit. De vulkaan heeft zich ruim twintig jaar slapende gehouden, zei de Colombiaanse geologische groep Ingeominas vandaag. De Colombiaanse luchtmacht heeft vanmorgen, samen met een aantal geologen een observationele fly-over gemaakt, tijdens de fly-over hebben ze de Nevado del Ruiz vulkaan gefotografeerd. Daar deden ze een verontrustende ontdekking, aan de oost kant van de krater zagen de geologen as op de gletsjer liggen. Naast de as was er ook een rookpluim zichtbaar van ongeveer 1,5 kilometer hoog. Gedurende de dag werd er ook een toename aan seismische activiteit waargenomen en een toename aan zwaveldioxide. Al deze factoren aan te geven dat de vulkaan aan het opwarmen is.

Foto: Manizales

De Nevado del Ruiz is een 5321m hoge stratovulkaan van de Andesketen, gelegen in Caldas, Colombia. Het is de meest noordelijk gelegen vulkaan van de Andean Volcanic Belt, en ligt ten westen van Manizales, met de stad Armero in de vallei eronder. In 1985 produceerde een uitbarsting een lahar die heel Armero bedekte en ongeveer 23000 mensen het leven kostte. De Nevado del Ruiz werd gevormd door subductie van de oceanische Nazca Plaat onder de continentale Zuid-Amerikaanse Plaat. Stratovulkanen in de Andes zijn voor het merendeel pliniaans, en Nevado del Ruiz is daarop geen uitzondering. In de twee steden rondom de vulkaan heeft de Nevado del Ruiz de bijnaam "de Slapende Leeuw".

©Meteo-Service.nl
  vrijdag 9 maart 2012 @ 23:09:01 #88
33232 Againzender
Vriend van de show
pi_108925459
quote:
0s.gif Op vrijdag 9 maart 2012 21:34 schreef Weatherman het volgende:
De Nevado del Ruiz vulkaan komt tot leven

De Nevado del Ruiz vulkaan, wiens uitbarsting 26 jaar geleden ongeveer 25.000 mensen het leven koste geeft weer tekenen van activiteit. De vulkaan heeft zich ruim twintig jaar slapende gehouden, zei de Colombiaanse geologische groep Ingeominas vandaag. De Colombiaanse luchtmacht heeft vanmorgen, samen met een aantal geologen een observationele fly-over gemaakt, tijdens de fly-over hebben ze de Nevado del Ruiz vulkaan gefotografeerd. Daar deden ze een verontrustende ontdekking, aan de oost kant van de krater zagen de geologen as op de gletsjer liggen. Naast de as was er ook een rookpluim zichtbaar van ongeveer 1,5 kilometer hoog. Gedurende de dag werd er ook een toename aan seismische activiteit waargenomen en een toename aan zwaveldioxide. Al deze factoren aan te geven dat de vulkaan aan het opwarmen is.

[ afbeelding ]Foto: Manizales

De Nevado del Ruiz is een 5321m hoge stratovulkaan van de Andesketen, gelegen in Caldas, Colombia. Het is de meest noordelijk gelegen vulkaan van de Andean Volcanic Belt, en ligt ten westen van Manizales, met de stad Armero in de vallei eronder. In 1985 produceerde een uitbarsting een lahar die heel Armero bedekte en ongeveer 23000 mensen het leven kostte. De Nevado del Ruiz werd gevormd door subductie van de oceanische Nazca Plaat onder de continentale Zuid-Amerikaanse Plaat. Stratovulkanen in de Andes zijn voor het merendeel pliniaans, en Nevado del Ruiz is daarop geen uitzondering. In de twee steden rondom de vulkaan heeft de Nevado del Ruiz de bijnaam "de Slapende Leeuw".

©Meteo-Service.nl
dat was in 85 zo´n nare ramp, verschrikkelijk goed door camera´s vastgelegd. Zit het op youtube terug te kijken nu, wordt er weer naar van :{
Overigens was de oorzaak van de ramp vooral het smeltwater, niet eens de zwaarte van de eruptie?
[b]Op maandag 6 september 2010 00:28 schreef tong80 het volgende:[/b]
GVD Wat moet jij een trotse vader zijn :)
:P
  Moderator maandag 12 maart 2012 @ 23:04:02 #89
8781 crew  Frutsel
pi_109034416
quote:
Alertstatus of Ijen Volcano (Java) raised to 3 again
The official alert level for Ijen volcano in East Java, Indonesia, has been raised again to 3 ("alert") due to an increase in activity, our Indonesian correspondant Andi reports.
A new 10 m wide gas vent, which erupted buring gasses, was observed on 10 March at 17 m distance from the shore. Thick steaming, larger than usual, forming a thick white column of sulfur steam 200 m high was already noted since 3 March. Measurements of the lake water temperature at 5 m depth had also shown increased values of 42.70 deg C.

On 10 March, the lake surface was 2 meters higher than normal, although this could be attributed to heavy recent rain fall.

Another sign of increased activity is that many leaves of trees and other plants around the crater have died recently, suggesting higher than normal SO2 levels.

Seismic activity has been rising as well. Since 22 Feb, a near contiuous tremor signal has been being recorded. In the interval 22-31 Feb, there were 52 harmonic tremor periods lasting up to 20 minutes, as well as 17 2 low-frequency earthquakes, 38 mostly shallow volcanic quakes. This number increased to 306 tremor episodes lasting up to 25 minutes, 27 low frequency, and 125 mostly shallow volcanic earthquakes during the latest observation period between 1-10 March.

Ijen volcano in East Java, famous for its turquoise acid lake Kawah Ijen and the sulfur mine inside its crater, had been on higher alert starting 18 December 2011, but was lowered to alert 2 on 4 Feb this year, but is now again at the second highest level of 3, meaning that volcanologist think an eruption could be imminent. Access to the crater is currently closed.
  Moderator woensdag 14 maart 2012 @ 13:48:17 #90
8781 crew  Frutsel
pi_109087542
quote:
Smoke plume from Colombian volcano on Monday
MANIZALES, COLOMBIA (CBS) -- A rising smoke plume from a Colombian volcano put nearby cities and towns on alert as it continued to emit smoke, vapor and ash Monday.

The Nevado del Ruiz volcano, located in central Colombia about 130 kilometers (80 miles) west of Bogota, has been on yellow alert since October 2010 and began spewing ash and smoke last week.

The director of the Manizales seismic observatory, Gloria Cortes, said they are keeping a close eye on the volcano and monitoring seismic activity as they work with local officials to ensure the safety of nearby residents and tourists in the area.

"The local committee leaders, led by the area mayors, and given the current state of activity, have made a decision regarding the level of alert for the different areas and cities," Cortes said.

Authorities from cities in the volcano's proximity say they too are carefully watching the situation and have issued green and yellow alerts depending on how close they are to the volcano.

The mayor of Manizales, Jorge Eduardo Rojas, said his city is on green alert for now adding that could change if activity increases.

"Everyone needs to be ready for any situation. However, the city alert, which is at green, is still green and is not going to change though we are of course carefully watching for any changes on Nevado [del Ruiz]," Rojas, said.

Other cities closer to the crater are on an elevated yellow alert, though they say populated centers are not in imminent danger at the moment.

Thus far, the smoke plume has not caused any problems for air traffic.

The volcano's yellow alert means an eruption is possible though not definite. If it passes to orange it signifies an eruption is likely in weeks.
  Moderator maandag 19 maart 2012 @ 14:27:49 #91
8781 crew  Frutsel
pi_109272953
quote:
More emissions from Mexican volcano
The Popocatepetl volcano registered 14 exhalations of low intensity accompanied by water vapor, gas and a low amplitude spasmodic tremor, reported the National Center for Disaster Prevention (Cenapred). In its latest report, the agency of the Ministry of the Interior (Interior Ministry) explained that the exhalations of greater intensity occurred yesterday 13:30 and 22:42 hours. He said that although during the night, a glow was observed in the crater, the other metrics do not show major changes, so the light status of volcanic alert remains at yellow stage two. Observers should expect more moderate exhalations, some with ash emissions, sporadic explosions are also likely to issue short incandescent fragments and slight glow in the crater can also be observed at night.
Vertaald uit El Universal
  Moderator vrijdag 23 maart 2012 @ 08:47:40 #92
8781 crew  Frutsel
pi_109418080
quote:
Mexican quake may have triggered San Salvador volcano activity
The Mexican 7.4 magnitude earthquake near Acapulco on Tuesday might have affected the currently dormant San Salvador volcano in 1000 km distance and triggered an earthquake swarm under the volcano.

San Salvador volcano is an active stratovolcano immediately northwest of the capital San Salvador City and last erupted in 1917.

The National Service of Territorial Studies (SNET) reported that as of yesterday 21 March 05:30 pm local time, the swarm consisted of 25 quakes, including 8 felt quakes between magnitude 2.2 and 3.3. The quakes were located at shallow depths between 0.5 and 5.8 km under the volcano.
The Red Cross is reported to have sent some members to the volcano area as a precautionary measure, although there were no reports of casualties or damage.

It is possible that the strong Mexican earthquake was the trigger for this swarm as a result of tectonic disturbance of the magma chamber beneath the volcano. Relationships between large earthquakes and volcanic eruptions with effects occurring up to a year after the quake have long been suggested, but are difficult to proof.
  vrijdag 23 maart 2012 @ 10:10:08 #93
151456 Tokamak
Bad shrooms...
pi_109419960
Nog mooier:

quote:
'Beving Mexico geboorte vulkaan'
Toegevoegd: donderdag 22 mrt 2012, 22:10
Update: donderdag 22 mrt 2012, 22:10


De zware aardbeving die dinsdag Mexico trof, is waarschijnlijk het eerste signaal van de geboorte van een nieuwe vulkaan. Een groep geologen en seismologen van de Nationale Universiteit van Mexico is vandaag bij het epicentrum van de beving in het dorp Ometepec een onderzoek hiernaar begonnen.

De aarde in het centrum van Mexico is sinds dinsdag niet meer tot rust gekomen. Er zijn al ruim tachtig naschokken geregistreerd. Vandaag alleen al waren er meer vijftien bevingen, de zwaarste met een kracht van 5,0 op de schaal van Richter. De bevingen waren goed voelbaar in Mexico-stad en leidden opnieuw tot paniek.
Baby-vulkaan

Het is niet de eerste keer dat de Mexicanen getuige zijn van de geboorte van een nieuwe vulkaan. Een paar honderd kilometer van Ometepec ligt de Paricutín, bijgenaamd de baby-vulkaan, de jongste vulkaan ter wereld.

In 1943 opende zich de vlakke grond hier en kwam een dikke stoom vermengd met stenen naar buiten, later gevolgd door een lavastroom, die twee dorpen geheel verzwolg. In acht maanden tijd groeide de vulkaan tot een hoogte van 365 meter. Hij is 9 jaar actief gebleven.
pi_109432782
quote:
New” Mexican Volcano Caused by the Oaxaca Earthquake? Not Likely.
This week saw a very strong earthquake in an area of southern Mexico – a M7.4 event centered 25 km from Ometepec. It looks like it was a relatively shallow earthquake (~15 km) that was related to thrusting due to the subduction of the Cocos plate under Mexico. Although this earthquake was larger than we might expect in Mexico, it is in a zone of high earthquake hazard, so the earthquake itself was not surprising – remember, subduction zones and earthquakes go hand in hand. The effects of the earthquake on the area have been significant, with over 1000 building collapsed or damaged, but thankfully few lives were lost.

After the earthquake, there has been a flurry of news in Mexico about a supposed “new volcano” that appeared between Huajintepec and Huixtepec municipality of Ometepec. The details are scant, but the mayor of the district claims the new volcano to be “tiny” (but in other articles, he says the “volcano” has been there “for many years”). As usual, there is a lot of misleading coverage, like this story that shows a picture of an undersea vent at NW Rota 1 in the Marianas Islands (with no caption to say so). There is also a lot of speculation in the Mexican media that the “new volcano” might somehow have caused the earthquake or all the aftershocks being felt in the region.

Now, there are quite a few reasons why it is very unlikely that there is a “new volcano” formed by the Oaxaca earthquake or that the earthquake was somehow caused by this supposed volcano.

First, why this earthquake didn’t cause a “new volcano”: Although volcanoes in subduction zones are common, the location of volcanoes is not arbitrary. This is why we get ranges of volcanoes. The Cascade volcanoes in the U.S. all occur well inland from the actual point where the Juan de Fuca plate subducts under North America (the “trench). If we look at the active volcanoes of Mexico (below), the volcanic arc is almost 300 km from Ometepec, so the likelihood a new volcano would occur there has a very low probability (next to zero) – you have to go a long way from Ometepec to find active volcanoes. Some articles have been comparing this to the emergence of Parícutin in 1943 – a case of an actual “new volcano”, but Parícutin is smack in the middle of the active volcanic belt. To get magma to form, melting of the mantle has to occur and in subduction zones, to do that, you need water to come off the oceanic crust that is being pulled under the overriding plate. The water only comes off at a certain depth (which is related to temperature), so the location of the volcanic arc tends to be hundreds of kilometers from the trench (however, it varies from subduction zone to subduction zones based on the angle of the slab beneath the overriding plate).

Second, why any “new volcano” can’t be the source of the seismicity in Oaxaca: Whenever geoscientists examine earthquakes, we look at how the earth moved along the fault. This produced the famed “beachball” diagrams of the focal mechanism of an earthquake. For earthquakes generated by magma rising under a volcano, we want dilation/extension as the crust moves out of the way to let the magma through. The Oaxaca earthquake had a reverse/thrust motion, meaning that the force was compressional, not dilation. This sort of motion is not consistent with magma movement and is very consistent with thrust faulting due to the subduction zone. The many aftershocks from the earthquake are highly common from any large earthquake, so a “new volcano” is just not necessary to explain the 80+ aftershocks felt so far.

So, all this “news” about a new volcano in Mexico is likely the product of media hysteria after a disaster. The only actual “observations” I’ve seen is claims of “hot water gushing/bubbling” after the Oaxaca earthquake, but hot springs are common along faultlines in many locations around the world. This doesn’t mean that magma near the surface is the source of heat, but hot water will follow faults to reach the surface. A new earthquake might open new pathways for this water. However, with such scant information, it is hard to say that even that is happening near Ometepec. What I can safely say is that a “new volcano” is not very likely at all, both in causing the earthquake or being produced by the earthquake.

http://www.wired.com/wire(...)rthquake-not-likely/
  Moderator woensdag 28 maart 2012 @ 12:12:34 #95
8781 crew  Frutsel
pi_109602500
quote:
Vulkanen actiever bij volle maan
Italiaans onderzoek van de Stromboli heeft geleerd dat vulkanen actiever zijn bij Volle Maan. Dat meldt de website Geopersdienst.nl.

Aardwetenschappers Gianluca Sottili, van het Istituto di Geologica Ambientale e Geoingegneria in Rome, en Danilo Palladino, van de Sapienza-Universiteit in Rome, analyseerden de explosies die zich voordeden in de krater van de Stromboli van juni 2010 tot oktober 2011.

Eén uitbarsting per vijf minuten
De Stromboli bevindt zich even ten noordoosten van het eiland Sicilië in Italië, en is al minstens tweeduizend jaar continu actief. Gemiddeld eens per vijf minuten vindt er een uitbarsting plaats, aldus de website.

De onderzoekers concludeerden dat het aantal explosies per uur bij Volle of Nieuwe Maan significant hoger ligt dan het gemiddelde voor de hele maand. Maar bij springtij is er lang niet altijd een groter aantal per uur. In sommige maanden was de activiteit dan zelfs het laagst.

Ook uit eerdere onderzoeken aan andere types vulkanen blijkt dat de stand van onze natuurlijke satelliet de kans op een uitbarsting kan beïnvloeden. Hoe dat precies in zijn werk gaat is nog niet duidelijk.

Aantrekkingskracht van de Maan
De Italiaanse aardwetenschappers denken dat het gaat om de aanvoer van magma vanuit de relatief ondiepe magmakamer. Omdat het gesteente rondom het gangenstelsel waarin de magma zit door de aantrekkingskracht van de Maan elke veertien dagen een klein beetje wordt samengedrukt en weer uitzet, zal de magmatoevoer dezelfde regelmaat vertonen - en daarmee ook de frequentie van de uitbarstingen.
  maandag 2 april 2012 @ 10:39:49 #96
23267 Roel_Jewel
Gobbledigook
pi_109795833
Uit de oude doos:



quote:
Volcano Tungurahua sometimes erupts spectacularly. Pictured above, molten rock so hot it glows visibly pours down the sides of the 5,000-meter high Tungurahua, while a cloud of dark ash is seen being ejected toward the left. Wispy white clouds flow around the lava-lit peak, while a star-lit sky shines in the distance. The above image was captured in 2006 as ash fell around the adventurous photographer. Located in Ecuador, Tungurahua has become active roughly every 90 years since for the last 1,300 years.
  Moderator / Redactie Sport / Weblog maandag 2 april 2012 @ 20:45:57 #97
17650 crew  rubbereend
JUICHEN
pi_109820884
wow
DeLuna vindt me dik ;(
Op zondag 22 juni 2014 12:30 schreef 3rdRock het volgende:
pas als jullie gaan trouwen. nu ben je gewoon die Oom Rubber die met onze mama leuke dingen doet :)
  Moderator woensdag 4 april 2012 @ 14:33:44 #98
8781 crew  Frutsel
pi_109894829
quote:
Nevado del Ruiz seems to be getting closer to a new eruption.

INGEOMINAS reports that during the last week, there has been a significant increase in the activity of the volcano, which can be summarized as follows:

- From March 27, there have been phases of volcanic tremor pulses related probably to deep magma movements

- Since the last week, there were seismic signals interpreted with rock fracturing, i.e. dike intrusions, located west of the active crater. Similar seismic activity was observed prior to the eruptions in November 1985 and September 1989, although this time it is less energetic.

- On March 29 at 10:54 local time, for a period of 25 minutes, there were over 135 earthquakes located south of Arenas crater at a depth of about 4 km.
- From 04:00 am local time on 31 March, there has been a significant increase in seismicity of events associated with fluid movements and fracturing of rock located in the active crater.
- SO2 emissions continue at high levels.

According to the diagnosis made so far, INGEOMINAS expects an eruption in the coming weeks, but smaller in size than those in November 1985 and September 1989.
  Moderator vrijdag 6 april 2012 @ 12:00:29 #99
8781 crew  Frutsel
pi_109976656
quote:
Dangerous Colombian volcano may erupt soon
Colombia's snowcapped Nevado del Ruiz volcano has lately shown signs pointing towards an immanent eruption.

An "Orange" alert has been posted, meaning that the volcano could erupt within days to weeks, the Smithsonian/USGS Weekly Volcanic Activity Report web page said on Thursday.

The Andean volcano's last important eruptions happened in 1985 and 1989, the 1985 eruption having led to Colombia's worst natural disaster.

During the last week of March, tremors shook the volcano with increasing, according to the Colombian government agency, INGEOMINAS. Volcanologists interpreted the quakes as telltales for "rock fracturing" and "fluid movement" within the volcano.

Seismicity remained "elevated" during the first days of April, the report said.

According to the Smithsonian website, Nevado del Ruiz is spread over more than 200 square km (about 80 square miles) in central Colombia.

Standing more than 17,000 feet above sea level, the highest reaches of the volcano are clad in permanent snow and ice, the near-equatorial location notwithstanding.

The conflict between hot lava and ice on Nevado del Ruiz has proven deadly in the past.

During the November 1985 eruption, melting of the ice cap generated lahars, volcanic mudflows, which swept down the mountain's six main river valleys, the Wikipedia Nevado del Ruiz web page said.

A lahar following the Lagunilla Valley swept through the town of Armero, killing three-fourths of its 28,700 residents. In all, more than 23,000 people were killed and about 5,000 more were injured, according to Wikipedia.
  Moderator dinsdag 17 april 2012 @ 22:22:38 #100
8781 crew  Frutsel
pi_110463175
quote:
Alert level raised for 'Popo'
MEXICO CITY, April 17 (UPI) -- Mexico Tuesday advised residents of Puebla state to take further precautions as the Popocatepetl volcano continued to show ominous signs of life.

A Yellow Level 3 alert was posted for the area around the volcano Tuesday, meaning there was a intermediate or high probability of a violent eruption, which would range from an ash cloud to a possible explosion.

Schools were shut down in the area and residents were advised to stay inside and keep their windows closed to keep out the moderate amounts of ash that have been escaping from the mountain, CNN said.

Puebla state officials earlier evacuated a 7-kilometer (4.3 mile) perimeter around the mountain.

Scientists monitoring the volcano said Tuesday they saw glowing lava inside the crater overnight and recorded a 40-minute tremor.

Popocatepetl, known as Popo, is located not far from Mexico City and has not experienced a major eruption since 2000.
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