Earthquakes in Greece — August 2026
3 earthquakes were recorded in Greece during August 2026, an average of 0.1 per day.
3 reached magnitude 4 or above and 0 reached magnitude 5 or above. The average focal depth was 37 km.
The month's largest event in Greece was a magnitude 4.5 earthquake near Ástros, Greece on 28 August 2026 at 23:55 UTC. A magnitude 4.5 earthquake radiates roughly 85 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 7 recorded the previous month.
67% of events here are shallow (under 70 km), 33% intermediate (70–300 km) and 0% deep-focus (over 300 km). A substantial share of intermediate-depth events points to a subducting slab beneath the region rather than purely crustal faulting.
By band, the catalogue holds 3 in the magnitude 4 range.
The month's largest events were M4.5 near Ástros, Greece on 28 August at 90 km; M4.4 near Lárdos, Greece on 07 August at 10 km; M4.3 near Antikyra, Greece on 09 August at 10 km.
That is 82% below the 17 events Greece averages per month across the 21 months on record.
Largest earthquakes in Greece, August 2026
3 events listed below, newest first. Times are UTC. Click any column header to re-sort.
| Time (UTC) | Mag | Location | Depth (km) | Country | Details |
|---|---|---|---|---|---|
| 4.5 | Ástros, Greece | 89.6 | Greece | View details View | |
| 4.4 | Lárdos, Greece | 10.0 | Greece | View details View | |
| 4.3 | Antikyra, Greece | 10.0 | Greece | View details View |
Frequently asked questions
How many earthquakes hit Greece in August 2026?
3 earthquakes were recorded in Greece during August 2026, of which 3 were magnitude 4 or above.
What was the biggest earthquake in Greece in August 2026?
A magnitude 4.5 event near Ástros, Greece on 28 August 2026.
Other months in Greece
Magnitudes for August 2026 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.