During the night a minor earthquake swarm took place on two parts of the Tjörnes Fracture Zone. The first earthquake swarm was just 19,9 km north-east of Siglufjörður village. Largest earthquake in that swarm had a magnitude of 3,1.
The second earthquake swarm was north-east of Grímsey Island and it was a minor swarm. Largest earthquake in that swarm had a magnitude of 2,8. Other earthquakes that happened were smaller in magnitude.
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