Update on Askja volcano earthquake swarm

Since I wrote the article yesterday (09-November-2019) on the earthquake swarm in Askja volcano there has been increase in the earthquake activity. One magnitude Mw3,4 earthquake has happened and one magnitude Mw3,2 earthquake also happened. The active earthquake area seems to have expanded a little to both north and south. This earthquake swarm continues to appear to be only tectonic in nature and there are no signs of magma movement in the shallow levels of the crust on nearby SIL stations. It is not possible to know for sure what is happening in deeper levels of the crust.

The earthquake activity in Askja volcano. Copyright of this image belongs to Icelandic Met Office.

There is a chance this earthquake swarm is going to increase before this activity slows down. What happens next depends on the built up stress levels in the crust in Askja volcano. In the last 48 hours over 300 earthquakes have taken place in Askja volcano.


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