During the night of 13-July-2018 a minor earthquake swarm took place in south part of the caldera of Katla volcano.
Earthquake activity in Katla volcano. Copyright of this image belongs to Icelandic Met Office.
Largest earthquake in this minor earthquake swarm was magnitude 2,9 and the second largest earthquake had a magnitude of 1,9. This earthquake swarm is over but new earthquake swarms might start without warning. July often marks the time when earthquake activity starts to increase in Katla volcano.