Iceland's Eyjafjallajokull Volcano - Discussion Thread

[Gray-Wolf]

Any news of 'the witch' and her rumblings Guys?

EDIT: Got it

http://en.vedur.is/earthquakes-and-volcanism/earthquakes/myrdalsjokull/

still rumbling on then?

Edited August 26, 2010 by Gray-Wolf

[picog]

Some fresh snow on Eyja and a few rumbles perhaps

http://eldgos.mila.is/eyjafjallajokull-fra-thorolfsfelli/

[picog]

Very clear today, glacier looking good. No sign of any steam.

http://eldgos.mila.is/eyjafjallajokull-fra-thorolfsfelli/

[masheeuk]

SOME larger quakes overnight near Askia and Bárðarbunga reported on Dept of Geophysics website.

[coldfingers]

Some puffs of steam showing on Eyja this evening, probably the colder weather showing it up. Really annoying that the tremor charts are broken and stuck back on the 12th Sept. Vatnajokull seems to be showing the most seismic activity at the moment.

Edited October 22, 2010 by coldfingers

[Argyllcraig]

Quite a wee cluster of earthquakes yesterday.

6 in total all just below mag 2 and at a variety of depths.

Iceland met office

[coldfingers]

“This event is over,†or is it?

http://icelandreview.com/icelandreview/daily_news/?cat_id=16539&ew_0_a_id=369471

“This event is over,†confirmed volcanologist Ãrmann Höskuldsson to Morgunbladid, however adding that, there can be a continuation of the eruption in Eyjafjallajökull at a later stage.

Keeping his options open then?

[Crimson_Sprite]

Edited November 29, 2010 by Crimson_Sprite

[coldfingers]

Will Eyja erupt again?

This is taken directly from the Iceland volcano and earthquake blog by Jon Friman. http://www.jonfr.com/volcano/

Inflation starts again in Eyjafjallajökull volcano

Posted on December 21, 2010 by Jón Frímann After a few months of a period of stability in Eyjafjallajökull volcano after the eruption ended on the 28th of May 2010. There seems to be more instability starting again in Eyjafjallajökull volcano. This instability can so far only be seen on GPS sensors around the volcano. So far the inflation that is starting at medium rate, about 5mm on every 24 hours or so. This is clear when a early results (not error corrected) are checked from Icelandic Met Office GPS network. The trigger for the current instability appears to be a sharp deflation that took place in Eyjafjallajökull volcano few days ago.

Picture is from Icelandic Met Office, copyright of this picture belongs to them. Click on the picture for higher resolution.

Automatic GPS data from 21st of December 2010. The GPS station name is THEY and is on the south slope of Eyjafjallajökull volcano. The sharp deflation appears clearly on the GPS automatic data (not error corrected) and is followed by a sharp inflation period that is currently ongoing.

It currently remains unclear if this inflation period in Eyjafjallajökull volcano is going to continue. At current time the inflation in Eyjafjallajökull volcano is going to continue. It is also clear that today Eyjafjallajökull volcano is few weeks from re-starting the eruption, as it has not inflated enough to do so. But what is unclear is if this inflation and inflow of new magma under Eyjafjallajökull volcano is going to move around older magma that currently is higher up in the Eyjafjallajökull volcano plumbing after the eruption started earlier this year. For the moment the only that can be done is to wait and see what happens next.

Wikipedia articles on Eyjafjallajökull volcano

Eyjafjallajökull

2010 eruptions of Eyjafjallajökull

[coldfingers]

Hmmm, interesting, Eyja starting to get spotty with tremors for the first times for ages. http://en.vedur.is/e...ull/#view=table

Apparently a little bit of steaming showing from the crater this morning too.

Edited December 22, 2010 by coldfingers

[PB22]

Hmmm, interesting, Eyja starting to get spotty with tremors for the first times for ages. http://en.vedur.is/e...ull/#view=table

Apparently a little bit of steaming showing from the crater this morning too.

Thanks for the updates, very interesting...definitely worth keeping a close eye on things over the coming days.

[Rustynailer]

Hmmm, interesting, Eyja starting to get spotty with tremors for the first times for ages. http://en.vedur.is/e...ull/#view=table

Apparently a little bit of steaming showing from the crater this morning too.

I have only just noticed. You're right CF those tremors around EJ are a lot more than of late. There seems to be a rhythm up down on the graph. One tremor on the Katla caldera edge and one in the crater. One 20ish Km from Hekla. 16 tremors on the graph all near EJ and Katla ATM. Excluding the only outlier near Hekla (on the Mýrdalsjökull graph). Deepest are 10-12 km that is reasonably significant IMO, regarding magma chamber activity.

If either EJ or Katla go up we better not wish for a Northerly, best we have an Easterly, could be bad poopoo.

Hopefully its just magma moving a bit.

That would probably make the snow gray here in a Northerly. I bet the shares in Air travel shake a bit on the old FT.

better change the subject

Russ

[coldfingers]

Clearer skies today over Eyjafjallajokull after the recent storms seemed to show steaming from the top of the mountain again! Is she thinking about making a comeback I wonder?

Edited December 28, 2010 by coldfingers

[BARRY]

Clearer skies today over Eyjafjallajokull after the recent storms seemed to show steaming from the top of the mountain again! Is she thinking about making a comeback I wonder?

lots of small quakes today on the graph.

[coldfingers]

Another update today taken from Jon Friman on his Iceland blog.. http://www.jonfr.com/volcano/

A small ash plume over Eyjafjallajökull volcano today ?

Posted on December 28, 2010 by Jón Frímann

A few of my readers reported today in comments that they did see a small ash plume or something of that nature today over Eyjafjallajökull volcano. While I stress that this is still unconfirmed at this stage it might well have happened.

There are two options that might explain what did happen today. One is that a ash was moving due to wind in the area. But this happens quite a lot during the dry times in the winter and summer. The second option is that a older magma from the eruption earlier this year was on the move and made a small eruption that did go unnoticed on the seismometers around Eyjafjallajökull volcano. I do not know how long this event in Eyjafjallajökull volcano today is supposed to have lasted. But it appears to have been for several hours in the longest.

But other then this it appears that Eyjafjallajökull volcano is mostly quiet. But some deep earthquakes have started again in the past few weeks. But so far they have not been increasing in numbers so a new eruption is not expected at this time by me or the experts.

With the following screenshot you can make up your own mind, cloud, ask or steam?

http://www.flickr.com/photos/birgitha/5302781085/

Edited December 29, 2010 by coldfingers

[coldfingers]

An interesting report from Jon Friman's Icelandic blog http://www.jonfr.com/volcano/

A explosions heard from Eyjafjallajökull volcano

Posted on January 2, 2011 by Jón Frímann This time around, it appears my break is going to a shorter then I planned. According to the newspaper named DV (a short of tabloid in Iceland) there have been a lot of explosion heard from Eyjafjallajökull volcano. According to the news this started around 19:00 UTC, when exactly is unclear at present time.

This was reported by a local farmer in the area, how descrpes this as the same noise before it started to erupt there in April 2010. But according to Icelandic Met Office and the University of Iceland nothing special has appears on seismometers around Eyjafjallajökull volcano. But it is good to know that in the first eruption in Eyjafjallajökull volcano on Fimmvörðuháls it took few hours for the harmonic tremor to appear following that eruption. For now all that can be done is to wait and see what happens next. This might be a start of a new eruption, or this simply might be nothing for the moment.

[coldfingers]

Further update to the explosions in Iceland

Update 1: This has been confirmed by more news media in Iceland. This also appears to have been going on all day. But the explosions today might have been at lower noise level during the day then happened tonight (this is unclear at the moment however). But also according to the news this explosions have been heard to Hvolsvöllur in the right wind direction (or a good weather?). This explosive booms have also been heard by other people in the area around Eyjafjallajökull volcano.

[Crepuscular Ray]

But still not much registerable e/q activity. Events too minor to register on seismographs, even though they might indicate increased activity at surface level?

[coldfingers]

But still not much registerable e/q activity. Events too minor to register on seismographs, even though they might indicate increased activity at surface level?

What I find more interesting is the strange tremor pattern from godabunga, the seismic station closest to Katla.

I haven't a clue what they mean though but there just seems to have been a general increase in activity in the area so interesting to watch if anything does develop. It isn't unusual for Eyja to have a second eruptions relatively shortly after the first. Or it could be Katla clearing it's throat or it could even be someone playing around with powerful fireworks. The last supposition is fairly unlikely though as it is a very sparsely populated area.

Edited January 3, 2011 by coldfingers

[coldfingers]

WOW!!! 43 quakes under Eyja and Katla in the last 48 hours with 32 of those happening today!!

That is a tremendous increase in activity in recent days. Interesting times ahead I think.

http://en.vedur.is/earthquakes-and-volcanism/earthquakes/myrdalsjokull/#view=map

[BARRY]

WOW!!! 43 quakes under Eyja and Katla in the last 48 hours with 32 of those happening today!!

That is a tremendous increase in activity in recent days. Interesting times ahead I think.

http://en.vedur.is/e...okull/#view=map

Just seen the chart looking very ominous

[coldfingers]

Some thoughts from the Iceland Review on the recent spate of quakes:-

Small Earthquakes by Eyjafjallajökull and Mýrdalsjökull A few minor earthquakes were measured below the Eyjafjallajökull and Mýrdalsjökull glaciers in south Iceland last night. They were all lower than two points on the Richter scale in strength.

The eruption on

Fimmvörduháls seen from Mýrdalsjökull. Photo by Páll Stefánsson.

There has been some seismic activity in the area lately but earth scientists are not concerned that it might lead to volcanic eruptions, visir.is reports.

According to recent reports, rumbling can still be heard in Eyjafjallajökull on occasion, but that is not considered an indication that the eruption, which ended last summer, is resuming.

Scientists have speculated that the eruption in Eyjafjallajökull might trigger an eruption in the bigger volcano Katla, which lies underneath the neighboring Mýrdalsjökull icecap, but there have been no signs of an upcoming eruption there either.

Click here to read more about the rumbling in Eyjafjallajökull.

http://www.icelandreview.com/icelandreview/daily_news/?cat_id=29314&ew_0_a_id=372218

[lorenzo]

Some activity this morning at Mýrdalsjökull Glacier , Katla Volcano.

webcam link http://www.ruv.is/katla

Found a blog advising new seismic stations up and running, indirectly paid for by our good selves collectively.

Tremor graph from Iceland stations - the large blue spikes being Earthquakes, I just added dots to make it easier to compare last few days.

Location of station

Edited January 8, 2011 by lorenzo

[Argyllcraig]

I shouldnt worry too much about about eyjaf or myrdalsjokull.

The whole area is one giant glacier and ive been informed that the glacier itself has moved about a lot over the last couple of weeks due to periods of bad weather across the region which in turn has registered as seismic activity.

Defo worth watching and the time lapse graphics of the seismic activity over the last 12 months is worth looking at to see the focus and intensity of goings on below the 2 volcanoes.

[Argyllcraig]

A lot of activity under the Vatnajokull glacier this week.... a whole swarm of earthquakes through the middle of the week seem to calm down on friday and saturday now we are seeing another swarm in the same area with some quakes over mag 3 and at varying depths. Current swarm has been going on since about 8am this morning and is centred close to where we would expect to locate grimsvotn.

May be just the glacier again as this area does get a lot of activity but certainly something to keep an eye on