Earthquake swarm on the Reykjanes ridge

On Saturday (13-July-2019) earthquake swarm started off the coast of Reykjanes peninsula on Reykjanes ridge. The earthquake swarm is located 2 – 4 km south-west of Geirfulgadrangur rock. It is unclear if this earthquake swarm is over. Largest earthquakes in this swarm had a magnitude 3,1. Other earthquakes had smaller magnitude.

Earthquake swarm on the Reykjanes ridge. Copyright of this image belongs to Icelandic Met Office.

Activity in this area has the pattern of stopping and then starting again few hours to week later. This might result in stronger earthquake swarm next time this activity starts up again. There is a volcano in this area that last erupted in 18th or 19th of century. This volcano is not listed in Global Volcanism Program I think. I do not think this earthquake activity is volcano related but that is difficult to know fore sure due to how remote this area is and poorly known as such.


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