On the 20-November-2013 an minor earthquake swarm took place in Katla volcano, it started at 06:21 UTC and was over by 08:54 UTC. This earthquake swarm was minor one, with the largest earthquake having the magnitude of 1,2. The deepest earthquake had the depth of 26,1 km. That means this earthquake swarm was due to magma changes in Katla volcano at depth.
No further activity has taken place in Katla volcano following this earthquake swarm since it took place. Future activity cannot be ruled out since Katla volcano is highly active when it comes to earthquake activity.