Increase in earthquake activity in Katla volcano

Today (10-July-2022), earthquake activity in Katla volcano increased. Most of the earthquakes that have happened are above magnitude Mw2,0 and that is unusual. Largest earthquake at the writing of this article had a magnitude of Mw3,0.

Red dots and a green star in Katla volcano caldera on Icelandic Met Office map
The earthquake activity in Katla volcano. Copyright of this image belongs to Icelandic Met Office.

It is unclear at the writing of this article what this means. Glacier flood from Mýrdalsjökull glacier following this earthquake activity is a possibility. Currently there are no signs that an eruption is about to start, that can change without warning. This might also just be normal summer activity in Katla volcano. At the writing of this article, the answer of what is going on is not clear.

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Earthquake activity in Katla volcano

Today (14-August-2021) an earthquake with magnitude Mw3,1 took place in Katla volcano. Other earthquakes where smaller in magnitude.

Green star in the Katla volcano caldera along with dots showing smaller earthquakes that are spread in the caldera. Showing location of smaller earthquakes that have happened in last few days.
Earthquake activity in Katla volcano. Copyright of this image belongs to Icelandic Met Office.

This earthquake activity appears to be normal late summer activity in Katla volcano. There was a minor increase in conductivity in nearby glacier rivers in last few days, that suggests that cauldrons have been emptying their water this summer. This is normal and happens almost every summer due to glacier melt.