Snæfellsnes Volcanic Zone

An M3.2 earthquake was recorded during the ongoing seismic activity near Grjótárvatn, Iceland, on January 16, 2025. It was the strongest event since August 2024. Nearly 100 earthquakes above M1 were recorded in January alone, matching the highest monthly count previously recorded in December 2024.

Seismic activity near Grjótárvatn has increased with a tremor episode on January 2, 2025, indicating a potential deep magmatic intrusion. The IMO has reported earthquakes at depths of 15 to 20 km (9.3 to 12.4 miles) which suggests subsurface magma movement without surface deformation.