Earthquake activity in Öræfajökull and Esjufjöll volcanoes

I am writing about both Öræfajökull and Esjufjöll volcanoes in this article.

Öræfajökull volcano

Earthquake activity continues in Öræfajökull volcano. As before most earthquakes are smaller than magnitude 1,0. Earthquake activity is mostly in the caldera but reaches a little outside of it at times. Míla webcamera for Öræfajökull volcano can be found here.

Esjufjöll volcano

After a long time with no earthquake activity. Earthquake activity suddenly appeared in Esjufjöll volcano. As with Öræfajökull volcano, earthquakes do not happen in Esjufjöll volcano unless it is connected to magma movements. I don’t know anything useful about Esjufjöll since no eruptions are documented in the last 12.000 years. There might have been a small eruption in the year 1927 that lasted for 4 days, but I don’t have any useful information about that eruption if it happened. If an eruption does happen in Esjufjöll a glacier flood would go down to Jökulsárlón (this webcamera here).

Earthquake activity in Öræfajökull and Esjufjöll volcano. Copyright of this image belongs to Icelandic Met Office.


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Earthquake swarm on TFZ continues

The earthquake swarm on Tjörnes Fracture Zone that started on 28-January-2018 continues and on Sunday 4-February-2018 a magnitude 3,1 earthquake took place. Currently the earthquake activity is ongoing.

The earthquake activity in TFZ during the last 48 hours. Copyright of this image belongs to Icelandic Met Office.

It is difficult to know for how long this earthquake swarm is going to continue. It might be several more days and up to few weeks more.