Iceland earthquakes, September 2025
3,087 earthquakes in Iceland in September 2025. Largest M4.0 near Reykjaneshryggur at 10.0 km depth. 16 reached magnitude 3 or greater.
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- Total earthquakes
- 3,087
- Largest earthquake
- M4.0
- near Reykjaneshryggur
- Depth range
- 0.0 km - 24.5 km
- Most active area
- Kleifarvatn
By magnitude
<M1
2,568
M1-2
447
M2-3
56
M3-4
15
M4-5
1
M5+
0
In context
- The most active month in Iceland since August 2025.
- Its largest quake, M4.0, was the biggest in Iceland since July 2025.