Earthquakes in Greece — October 2025
4 earthquakes were recorded in Greece during October 2025, an average of 0.1 per day.
4 reached magnitude 4 or above and 0 reached magnitude 5 or above. The average focal depth was 34 km.
The month's largest event in Greece was a magnitude 4.4 earthquake near Kastrí, Greece on 12 October 2025 at 16:47 UTC. A magnitude 4.4 earthquake radiates roughly 60 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 down from 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 4 in the magnitude 4 range.
Activity peaked on 12 October, when 2 events were recorded.
The month's largest events were M4.4 near Kastrí, Greece on 12 October at 55 km; M4.3 near Palekastro, Greece on 16 October at 35 km; M4.3 near Lithakiá, Greece on 01 October at 10 km.
That is 76% below the 17 events Greece averages per month across the 21 months on record.
Largest earthquakes in Greece, October 2025
4 events listed below, newest first. Times are UTC. Click any column header to re-sort.
| Time (UTC) | Mag | Location | Depth (km) | Country | Details |
|---|---|---|---|---|---|
| 4.4 | Kastrí, Greece | 55.3 | Greece | View details View | |
| 4.3 | Palekastro, Greece | 35.0 | Greece | View details View | |
| 4.3 | Lithakiá, Greece | 10.0 | Greece | View details View | |
| 4.0 | Kastrí, Greece | 35.0 | Greece | View details View |
Frequently asked questions
How many earthquakes hit Greece in October 2025?
4 earthquakes were recorded in Greece during October 2025, of which 4 were magnitude 4 or above.
What was the biggest earthquake in Greece in October 2025?
A magnitude 4.4 event near Kastrí, Greece on 12 October 2025.
Other months in Greece
Magnitudes for October 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.