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 earthquake activity in Tjörnes Fracture Zone. Largest earthquake is the green star. Copyright of this image belongs to Icelandic Met Office.
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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