Day: May 20, 2022

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Increased earthquake activity off the coast of Reykjanestá

Today (20-May-2022) around 18:00 UTC the earthquake activity off the coast of Reykjanestá, that is part of Reykjanes volcano, increased again after few days of little earthquake activity. The earthquake swarm is ongoing and always changing so this article is going to be short because of that.

Green stars out in the ocean where the main earthquake swarm is taking place just off the coastline of Reykjanestá. This is in south-west direction
Earthquake swarm on the Reykjanes ridge, close to Reykjanestá. Copyright of this image belongs to Icelandic Met Office.

Largest earthquake so far had a magnitude of Mw3,8 and the second largest earthquake had a magnitude of Mw3,5. The Mw3,8 earthquake was felt in Grindavík and on nearby towns on Reykjanes peninsula. A Mw3,0 earthquake took place just north of Grindavík and was felt in the town.

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Small earthquake swarm in Hengill volcano

Today (20-May-2022) at 15:45 UTC an earthquake with magnitude of Mw3,1 took place in Hengill volcano. I don’t know if this earthquake was felt.

Green star in Hengill volcano, just north-west of Hveragerði town. Few red dots around the green star shwoing smaller earthquakes
Earthquake activity in Hengill volcano. Copyright of this image belongs to Icelandic Met Office.

At the the writing of this article there has not been any more activity in this area. That might change without warning.

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Earthquake activity in Hofsjökull volcano

Today (20-May-2022) at 15:24 UTC an earthquake with magnitude of Mw3,2 took place in Hofsjökull volcano. Two smaller earthquakes had happened before the larger earthquake.

Green star in Hofsjökull glacier and volcano caldera rim on Icelandic Met Office map that shows the caldera rim on he map
Earthquake activity in Hofsjökull volcano. Copyright of this image belongs to Icelandic Met Office.

There is no other earthquake activity following this. Earthquakes are rare in Hofsjökull volcano but they do happen every few years. There are no signs of any other activity in Hofsjökull volcano.