Iceland volcano eruption risk level raised for aviation
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It is always funny to see, how airlines that produce marginal profit per year can all of a sudden loose so much money within one week...
Your margin has no bearing on your costs.
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Volcanologist Haraldur Siguršsson claimed that it is possible that the underground magma from Bįršarbunga may seep into the volcanic system of Askja volcano and ignite a powerful eruption in that region. Still, he thinks it is more likely that the current activity will not lead to any activity above ground.
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its not finished by a long shot I have been watching it in an amateur fashion.
The dyke is not extending and is now outside the ice field and has stopped propagating forwards but is still working down and left and right. They use a thing called harmonics to see how much larva is moving and there is loads of it moving fast.
The main volcano crater has 700meters of ice sitting on top of it. But they can see that the chamber under it is still filling and pressurising. The 5.7 quake is the largest quake since 2008.
If it does go bang which some seem to think it is just a matter of time is going to be big.
If the dyke works its way to the surface and goes first it may stop the under ice sheet eruption happening but it may cause the crater to collapse.
All very interesting from 1000's of nautical miles away.
The dyke is not extending and is now outside the ice field and has stopped propagating forwards but is still working down and left and right. They use a thing called harmonics to see how much larva is moving and there is loads of it moving fast.
The main volcano crater has 700meters of ice sitting on top of it. But they can see that the chamber under it is still filling and pressurising. The 5.7 quake is the largest quake since 2008.
If it does go bang which some seem to think it is just a matter of time is going to be big.
If the dyke works its way to the surface and goes first it may stop the under ice sheet eruption happening but it may cause the crater to collapse.
All very interesting from 1000's of nautical miles away.
There is no info on the exact cam location, but by the look of it, it should be somewhere 25-30 km to the NE of Vatnajokull, looking over the flat sandy plain between Bardarbunga and Askja.
Edit: managed to find the location (approximately 64°58'33"N 16°29'25"W):
Edit: managed to find the location (approximately 64°58'33"N 16°29'25"W):
Another webcam has been put up overlooking Bįršabunga volcano. The new one is situated on Vašalda peak in the central highlands, just north of Vatnajökull glacier.
The distance to Bįršarbunga is approximately 60 km (37 mi).
The distance to Bįršarbunga is approximately 60 km (37 mi).
Last edited by andrasz; 28th Aug 2014 at 10:35.
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Another Volcano on yellow alert now.
Askja volcano
◾The dyke from Bįršarbunga volcano has entered Askja volcano. Not the fissure swarm, the volcano it self.
◾Askja volcano status has been elevated to Yellow.
Bįršarbunga volcano
◾Cauldrons in Vatnajökull glacier that is on top of Bįršarbunga volcano have not grown during the night.
◾The water seems to be flowing into Grķmsvötn (Grķmsfjall volcano) lake. It has risen close to 15 meters in the past few days.
◾Earthquake activity is high. Both in the main volcano were a magnitude 5,4 earthquake (EMSC magnitude, USGS magnitude) took place today (28-August-2014) at 08:13 UTC. The earthquake took place in the caldera rim as most of the large earthquakes have happened.
◾Over 1300 earthquakes happened yesterday in the north end of the dyke swarm.
◾Cracks have started to happen in the crust above the dyke. This means the dyke is getting wider and is higher up in the crust then suggested by earthquake activity. There are reports of small cauldrons in Dyngjujökull glacier in the area, in the place were the glacier is thinnest and ending.
◾Harmonic tremor remains high on all SIL stations around Bįršarbunga volcano.
The situation is extremely dynamic and is going to change fast in next 24 to 48 hours. I am now close to 80% sure that an eruption is going to take place in both Askja volcano and Bįršarbunga volcano, since minor eruptions have been taking place under the glacier already.
◾The dyke from Bįršarbunga volcano has entered Askja volcano. Not the fissure swarm, the volcano it self.
◾Askja volcano status has been elevated to Yellow.
Bįršarbunga volcano
◾Cauldrons in Vatnajökull glacier that is on top of Bįršarbunga volcano have not grown during the night.
◾The water seems to be flowing into Grķmsvötn (Grķmsfjall volcano) lake. It has risen close to 15 meters in the past few days.
◾Earthquake activity is high. Both in the main volcano were a magnitude 5,4 earthquake (EMSC magnitude, USGS magnitude) took place today (28-August-2014) at 08:13 UTC. The earthquake took place in the caldera rim as most of the large earthquakes have happened.
◾Over 1300 earthquakes happened yesterday in the north end of the dyke swarm.
◾Cracks have started to happen in the crust above the dyke. This means the dyke is getting wider and is higher up in the crust then suggested by earthquake activity. There are reports of small cauldrons in Dyngjujökull glacier in the area, in the place were the glacier is thinnest and ending.
◾Harmonic tremor remains high on all SIL stations around Bįršarbunga volcano.
The situation is extremely dynamic and is going to change fast in next 24 to 48 hours. I am now close to 80% sure that an eruption is going to take place in both Askja volcano and Bįršarbunga volcano, since minor eruptions have been taking place under the glacier already.
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The quote is from this blog, the author is calling himself a hobby scientist - we have a few of those here as well:
Iceland geology | Volcano and earthquake activity in Iceland
Iceland geology | Volcano and earthquake activity in Iceland
Eruption Has Started
as reported here...
Iceland geology | Volcano and earthquake activity in Iceland
Bįršarbunga
Iceland geology | Volcano and earthquake activity in Iceland
Eruption has started in the dyke area. The eruption appears clearly on Mķla web camera. It can be viewed here....
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Eruption has started...
Official information from the Icelandic Met Office website - Home-page - Icelandic Meteorological Office | Icelandic Meteorological office
Warning
A fissure eruption has started north of Dynjujökull.
Warning
A fissure eruption has started north of Dynjujökull.