There is a interesting cluster of earthquakes north of Askja volcano. What is most interesting is the fact that this earthquakes are shallow This cluster of earthquakes is most interesting for the fact that it is shallow. The depth of the earthquakes is from 8.4 km and up to 0.1 km (~100 meters). This suggests that this is a dike intrusion is making. But appears to be growing slowly (a bit unclear at the moment however). But at this time it is impossible to know if this possible dike intrusion makes it too the surface or not.
History tells that it is not unclear for Askja volcano to erupt in small fissures. But that last happened in the Askja eruption in the year 1961.
Currently it is unclear what is going on north of Askja volcano. But this is for sure evolving into something in my opinion. But the question remains how long this is going to take. But this process has already been ongoing now for about 14 months and counting.
The last one is even shallower – displayed at 0.0 km.
28.04.2011 13:14:32 65.119 -17.031 0.0 km 1.1 99.0 21.9 km WNW of Dreki
There was a new earthquake after this one. But due the storm in Iceland it was not located properly. But it is also a chance that it was not located because it was only seen on two SIL stations.
Do you know about the depth of the one, which is not shown?
Now I see it. This was the earthquake that I did see on the SIL station. But did not appear on the automatic list.
This is really shallow. I wonder what happens next in this area. As the last time I did see a earthquake on this depth a eruption started few hours later.
We be interesting to watch this for the next few hours. Unfortunately we have a storm passing over Iceland.
A dike intrusion mostly results in a hawaiian type of eruption?
For this area, yes that is what would happen.
There is also a number of pretty shallow quakes on Eyjafjallajökull yesterday.
A bit poor quality on the newest earthquake. But depth is 0.7 km. But that is wrong, so it might be deeper or shallower due to the poor quality of the earthquake.
The earthquakes have happened in some kind of triangle.. All inside the Askja volcano?
Sander
And another very shallow quake at Askja:
29.04.2011 12:52:27 65.134 -17.010 0.1 km 0.8 99.0 21.7 km WNW of Dreki
A new blog post is up. 🙂