Earthquakes in Greece — September 2025
6 earthquakes were recorded in Greece during September 2025, an average of 0.2 per day.
5 reached magnitude 4 or above and 1 reached magnitude 5 or above. The average focal depth was 11 km.
The month's largest event in Greece was a magnitude 5.0 earthquake near Káto Soúlion, Greece on 08 September 2025 at 21:27 UTC. A magnitude 5.0 earthquake radiates roughly 477 tons of TNT equivalent in seismic energy.
That is below the Greece monthly average of 17 events over the period we cover — a comparatively quiet month, and level with the 6 recorded the previous 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 3 range, 4 in the magnitude 4 range, 1 in the magnitude 5 range.
The month's largest events were M5.0 near Káto Soúlion, Greece on 08 September at 10 km; M4.9 near Ouranoupolis, Greece on 22 September at 12 km; M4.5 near Kastrí, Greece on 13 September at 10 km.
That is 64% below the 17 events Greece averages per month across the 21 months on record.
Largest earthquakes in Greece, September 2025
6 events listed below, newest first. Times are UTC. Click any column header to re-sort.
| Time (UTC) | Mag | Location | Depth (km) | Country | Details |
|---|---|---|---|---|---|
| 5.0 | Káto Soúlion, Greece | 10.0 | Greece | View details View | |
| 4.9 | Ouranoupolis, Greece | 12.2 | Greece | View details View | |
| 4.5 | Kastrí, Greece | 10.0 | Greece | View details View | |
| 4.4 | Amorgós, Greece | 15.5 | Greece | View details View | |
| 4.1 | Itháki, Greece | 10.0 | Greece | View details View | |
| 3.4 | Oxílithos, Greece | 10.0 | Greece | View details View |
Frequently asked questions
How many earthquakes hit Greece in September 2025?
6 earthquakes were recorded in Greece during September 2025, of which 5 were magnitude 4 or above.
What was the biggest earthquake in Greece in September 2025?
A magnitude 5.0 event near Káto Soúlion, Greece on 08 September 2025.
Other months in Greece
Magnitudes for September 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.