Tonight there was an earth tremor of magnitude 3.3 near Grimsvötn volcano. The epicenter was 11.1 km east of Hamarinn. The center of the earthquake was with 3.8 km relatively flat. Hamarinn is a subglacial volcano located in the west of the Icelandic glacier Vatnajökull and belongs to a system of crevasses that connects Grimsvötn and Bardarbunga. There have been 3 other weak earthquakes along the volcanic system.
Since a few weeks an increase of seismic activity at Grimsvötn can be observed. Volcanic experts assume that the volcano is preparing for an eruption. Whether and when a volcanic eruption will occur cannot be predicted yet.