Posted on by Jón Frímann

Strong earthquake in Brennisteinsfjöll volcano

Today (14-May-2022) at 16:56 UTC an earthquake with magnitude of Mw4,8 took place in Brennisteinsfjöll volcano. This earthquake was clearly felt in Reykjavík, Selfoss and large parts of south and south-west Iceland. Depth of this earthquake seems to be 7,8 km.

Green star on the east part of Reykjanes peninsula in a area called Þrensli. With several red dots around showing smaller earthquakes. To the west there is a dense swarm of earthquakes in Reykjanes volcano and green stars to west of that
Earthquake activity in Þrensli, just south of Reykjavík city. Copyright of this image belongs to Icelandic Met Office.

It is unclear in my personal view if this is just a normal fault earthquake that might be possibly connected to SISZ or if this is because of stress changes from all the inflation of Krýsuvík and Fagradalsfjall volcanoes. There is a chance of larger earthquake in this area following this earthquake. When that earthquake might happen is impossible to know.

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Article updated at 04:56 UTC on 15-05-2022.