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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2 Replies to “Increase in earthquake activity in Katla volcano”

  1. Signs of glacial water in Múlakvísl, but this is just a side note, nothing dramatic by any means. Conductivity went up by 20 microsiemens/cm after the start of the (shallow) swarm. No deeper earthquakes were registered prior to the M3.0, which to me indicates that this is just normal summer activity, but I’m still an amateur so I might be wrong

    1. Might be. I have however seen this before in Katla volcano. If this earthquake activity continues, even at a low rate. It might suggest that something more is going on. But Katla volcano is always wait and see and there is no way to know what happens next.

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