A seismic swarm occurred at the volcano yesterday.
About forty earthquakes have been detected in the NW part of the caldera, of which 30 events were recorded between 08:00 UTC and noon with the strongest magnitude M 3.5 at 5 km depth. Three quakes were detected with magnitudes between M 2 and M 2.5, the rest of ground vibrations were too small to identify.
In general, the volcano has been at stable levels over the past few months until yesterday. Events with magnitude over M 3 were recorded in October 2021 and January 2022.
The ground deformation has continued at well-balanced levels since late summer 2021. However, the rate has increased. Further data, to be collected in the coming days, will aid in elucidating and affirming the trajectory of the deformation process within the region.
Source: Icelandic Met Office volcano activity update 27 March 2024
