An Earthquake M3,1 occurred at 04:40 and another M3,7 at 04:41 within the Katla caldera. The larger earthquake was felt in Þórsmörk and had a few aftershocks. About 200 earthquakes have been detected in the Katla volcano in the last 24 hours and the activity is still ongoing There was an increas in activity between 04:30 and 05:00 that has now decreased. The other largest earthquakes reached magnitude M3.2 (at 02:43 tonight) and M3.0 (at 16:28 yesterday). This is the highest daily rate this year. All of the earthquakes are very shallow. The activity is just south of the center of the caldera.