The seismic activity on the Reykjanes peninsula continues at reduced levels.
The swarm of earthquakes remains relatively stable in the intensity, but weakened in strength of quakes over the past 48 hours. The latest M 3-4 event has occurred on 28 October. No significant changes have appeared in earthquake depths.
However, the ongoing ground deformation rates are measured to be higher than in previous 2020 and 2022 events in the similar area. There are currently no precursors of magma intrusion beneath the Þorbjörn/Grindavík area up to now, but the activity may change rapidly and expand within a short time span from hours to days.
A new InSAR (Interferometric Synthetic Aperture Radar) satellite image of the area of interest (AOI) is expected to be acquired soon today and will be processed as soon as the data are available. Results suppose to identify and describe the deformation processes that have took place over the past 12 days.
Source: Icelandic Meteorological Office volcano activity update 30 October 2023