Vulcanismo - 2014



fablept

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Ao que parece confirma-se uma pequena erupção na Islândia..

14:11 A small eruption has begun at the crack northeast of Bárðarbunga in Dyngjujökli, says Kristin Jonsdottir, with Meteorological Institute. Air traffic over a wide area around Bárðarbunga has been banned: The IMO has amended its warning to red. Dyke is 25 km.
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Fonte:
http://www.ruv.is/

Olhando para o FlightRadar24.com alguns aviões já estão a desviar a sua rota do vulcão Bárðarbunga.
 

algarvio1980

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Islândia em alerta vermelho com erupção de vulcão

A Islândia emitiu um alerta vermelho para a indústria de aviação por possivél erupção do vulcão Bárdarbunga, onde a emissão significativa de cinzas é provavél, avança o site 'BBC News'. Na passada quarta-feira as autoridades evacuaram uma área próxima do vulcão com receio que este entrasse em erupção. Os geólogos defendem que a mudança de 'comportamento' do vulcão deve-se ao terramoto da passada terça-feira à noite perto do local.

Fonte: CM

Vamos ver se é desta. :D
 

Mário Barros

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Bardarbunga está em erupção por baixo do gelo
O vulcão islandês que motivou o alerta laranja para a aviação está entrou em erupção. O calor da lava só é sentido, por enquanto, pelo glaciar que o cobre.

O vulcão Bardarbunga, no centro da ilha da Islândia, já entrou em erupção, comunicou o instituto de meteorologia islandês. Depois de uma semana pontuada com milhares de sismos na região, a erupção iniciou-se por baixo do glaciar Vatnajökull onde se encontra o vulcão.

Os dados sismológicos indicam que a lava está a derreter o gelo do glaciar, confirmou a vulcanologista Melissa Pfeffer. Porém, ainda não é possível saber se a erupção vai derreter o gelo até à superfície. Caso isto aconteça o vulcão poderá começar a lançar vapor de água e cinzas para atmosfera. Perante este cenário possível as autoridades islandesas já lançaram um alerta vermelha à aviação.

Observador

Ai o outono e inverno :D.

Subglacial volcanic eruption begins in Iceland
REYKJAVIK, Iceland (AP) — Iceland raised its aviation alert to red Saturday as a subglacial eruption began at the restless Bardarbunga volcano, which has been rattled by thousands of earthquakes in the past week, the country's Meteorological Office said.
Seismic data indicated that lava from the volcano was melting ice beneath the Vatnajokull glacier, Iceland's largest, Met Office vulcanologist Melissa Pfeffer said.
She said it was not clear when, or if, the eruption would melt through the ice — which is between 100 to 400 meters (330 to 1,300 feet) thick — and send steam and ash into the air.
The eruption led Iceland to raise its aviation alert level to red, indicating an eruption that could cause "significant emission of ash into the atmosphere." Red is the highest alert warning on a five-point scale.
Aviation authorities declared a no-fly zone around the volcano but did not shut Icelandic airspace.
Pfeffer said scientists were flying over the glacier Saturday to look for changes on its surface. Scientists were also monitoring a hydrological station downstream from the volcano for flooding — a common result of volcanic eruptions in Iceland.
Authorities evacuated several hundred people earlier this week from the highlands north of the Vatnajokull glacier as a precaution. The remote area, 200 miles (320 kilometers) east of Reykjavik, is uninhabited but popular with hikers.
Iceland sits on a volcanic hot spot in the Atlantic's mid-oceanic ridge and eruptions occur frequently, triggered when the Earth's plates move and when magma from deep underground pushes its way to the surface.
A 2010 eruption of Iceland's Eyjafjallajokul volcano produced an ash cloud that caused a week of international aviation chaos, with more than 100,000 flights cancelled. Aviation regulators since have reformed policies about flying through ash, so a new eruption would be unlikely to cause that much disruption.
Pfeffer said the amount of ash produced would depend on the thickness of the ice.
"The thicker the ice, the more water there is, the more explosive it will be and the more ash-rich the eruption will be," she said.
___
Online:
Icelandic Meteorological Office: http://en.vedur.is/
 
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Agreste

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Bardarbunga...

23rd August 2014 14:10 - a small eruption under Dyngjujökull

A small lava-eruption has been detected under the Dyngjujökull glacier.

The Icelandic Coast Guard airplane TF-SIF is flying over the area with representatives from the Civil Protection and experts from the Icelandic Met Office and the Institute of Earth Sciences. Data from the equipment on board is expected later today.

Data from radars and web-cameras is being received, showing no signs of changes at the surface.

The estimate is that 150-400 meters of ice is above the area.

The aviation color code for the Bárðarbunga volcano has been changed from orange to red.

Some minutes ago (14:04), an earthquake occurred, estimated 4.5 in magnitude.

http://en.vedur.is/earthquakes-and-volcanism/articles/nr/2947
 
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Felipe Freitas

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L9gLNNS.png


Pelas webcams está tudo calmo neste momento.

WEBCAM
http://baering.github.io/
http://www.livefromiceland.is/webcams/bardarbunga
http://www.midhus.is/
http://vedur2.mogt.is/kverkfjoll/webcam/index.php
 

MSantos

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Tomei a liberdade de criar um tópico especifico para esta erupção, acho que se justifica, dada a relevância que pode vir a ter, pedia à moderação que movesse os posts sobre este tema para lá ;)

Erupção do Vulcão Bardarbunga (Islândia) - 2014
 
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