At 05:36 UTC a earthquake swarm started in Hengill volcano. Several dozen earthquakes took place and the largest earthquake had the magnitude of 3,4 and the second largest had a magnitude of 3,0. All other earthquakes where smaller in magnitude.
The earthquake swarm in Hengill volcano. Copyright of this image belongs to Icelandic Met Office.
This earthquake swarm appears to have been tectonic in nature and ended at 05:57 UTC. The largest earthquake was felt in Reykjavík, Hveragerði and Selfoss.
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