Earthquakes in Iceland — December 2025
1 earthquakes were recorded in Iceland during December 2025, an average of 0.0 per day.
1 reached magnitude 4 or above and 1 reached magnitude 5 or above. The average focal depth was 10 km.
The month's largest event in Iceland was a magnitude 5.0 earthquake near Grindavík, Iceland on 09 December 2025 at 10:12 UTC. A magnitude 5.0 earthquake radiates roughly 477 tons of TNT equivalent in seismic energy.
That is below the Iceland monthly average of 2 events over the period we cover — a comparatively quiet month.
100% of events here are shallow (under 70 km), 0% intermediate (70–300 km) and 0% deep-focus (over 300 km). Almost everything here is crustal. That is characteristic of transform faulting or continental deformation rather than subduction — and it means shaking at the surface is strong for the magnitudes involved.
By band, the catalogue holds 1 in the magnitude 5 range.
That is 58% below the 2 events Iceland averages per month across the 14 months on record.
Largest earthquakes in Iceland, December 2025
1 event listed below, newest first. Times are UTC. Click any column header to re-sort.
| Time (UTC) | Mag | Location | Depth (km) | Country | Details |
|---|---|---|---|---|---|
| 5.0 | Grindavík, Iceland | 10.0 | Iceland | View details View |
Frequently asked questions
How many earthquakes hit Iceland in December 2025?
1 earthquakes were recorded in Iceland during December 2025, of which 1 were magnitude 4 or above.
What was the biggest earthquake in Iceland in December 2025?
A magnitude 5.0 event near Grindavík, Iceland on 09 December 2025.
Other months in Iceland
Magnitudes for December 2025 reflect the current USGS review status and may have been revised since first publication. See our guides on the magnitude scale, focal depth and why earthquakes cluster.