During the night there was an small earthquake swarm in Bárðarbunga volcano. The largest earthquake in this earthquake swarm was ML3.04 in magnitude. It had the depth of 8.5 km. This might have been a n dike intrusion. But it is hard to know that for sure at the moment. This earthquake swarm only lasted for an about 2 to 3 hours before it stopped.
The location of the earthquake swarm in Bárðarbunga volcano. Copyright of this picture belongs to Iceland Meteorological Office.
The earthquake swarm also did appear clearly on the tremor plots on the SIL stations that are close to Bárðarbunga volcano. The second set of spikes there are from Hamarinn volcano. Copyright of this picture belongs to Iceland Meteorological Office.
This earthquake swarm was also seen on Grímsfjall volcano SIL station. The rise in harmonic tremor is due to a storm that is passing over Iceland at the moment (going to go over Iceland today). Copyright of this picture belongs to Iceland Meteorological Office.
Hamarinn volcano
Following the earthquake swarm in Bárðarbunga volcano an earthquake swarm did start in Hamarinn volcano. This earthquake swarm is so far small and the largest earthquake so far is an ML1.9 in magnitude. But Hamarinn volcano had an minor eruption in July 2011. That minor eruption created an glacier flood that was larger then the flood that did come from Mýrdalsjökull glacier the week earlier. Activity after that has however been little and few earthquakes have taken place. It is impossible to know if there is going to be any more eruptions in Hamarinn volcano. But it cannot be ruled out given current activity in it.
Year in review on Rúv News
Rúv News has put up an page with major events in Iceland during the year 2011.
Grímsfjall volcano eruption in May 2011 can be viewed here.
The glacier flood from Mýrdalsjökull glacier due to the small eruption in Katla volcano can be found here. Sadly there is no mention of glacier flood from Hamarinn volcano yet.
This video should be available outside Iceland. If it is not. Please let me know I can send an complain email to Rúv News about it.
When and where is the geophone at Katla gonna be set up?
The Katla volcano geophone goes up in January 2012. It is going to be located on an farm that is called Skeiðflöt.
Good news. And Skeidflöt is really close to Katla – just below it.
The video links worked for me.
A reminder that living with active volcanoes is not easy, especially for farmers.
Askja looks really lively.
http://hraun.vedur.is/ja/oroi/ask.gif
Yes it does, doesn’t it?
Jón, do you think the quake at Hekla is Tectonic? We were just discussing it. 😀
Thursday
22.12.2011 14:08:15 64.015 -19.984 8.6 km 0.2 48.14 12.4 km SW of Búrfellsstöð
This are just tectonic earthquakes. I am not sure if my geophone at Heklubyggð did record them. I am going to check for it later.
This is just an storm that is passing over Iceland. But now we get 4 low pressure system going over Iceland in an row.