Reported by EMSC13d ago
M3.1 earthquake in Greece
Sunday, September 13, 2026, 19:18:36 UTC · 40.150°N, 23.270°E
A magnitude 3.1 earthquake struck in Greece on Sunday, September 13, 2026, 19:18:36 UTC, at a depth of 9.0 km (shallow).
- Magnitude
- 3.1
- Minor · ml
- Depth
- 9 km
- Shallow
- Reported by
- EMSC
- Agency EMSC
- Nearest tracker
- 61 km
- from Thessaloniki
Outlined circle: this earthquake
In context
How big was it, and why here?
Energy released
674 kg of TNT
That is about 1/22,353 of the Hiroshima bomb. A magnitude 5.0 releases about 708 times more energy.
Tectonic setting
64 km
from the nearest mapped plate boundary, between the Aegean Sea and Eurasian plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
9 km
Shallow earthquakes (under 70 km) produce the strongest surface shaking for their size, so they are the ones most likely to cause damage near the epicenter.
After the main event
Aftershocks within 50 km
USGS and EMSC have not published any M2.5+ earthquake within 50 km since this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 511 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.2Aegean SeaNovember 8, 1905 · 116 km E of this epicenter
- 7.261 km W of Eresós, GreeceDecember 19, 1981 · 195 km SE of this epicenter
- 7.13 km W of Brezovo, BulgariaApril 18, 1928 · 286 km NE of this epicenter
- 7.07 km SE of Stara Kresna, BulgariaApril 4, 1904 · 179 km N of this epicenter
- 7.055 km S of Mýrina, GreeceFebruary 19, 1968 · 169 km SE of this epicenter
- 6.97 km NNE of Ágios Nikólaos, GreeceSeptember 26, 1932 · 44 km NE of this epicenter
- 6.921 km SSW of Kamariótissa, GreeceMay 24, 2014 · 181 km E of this epicenter
- 6.86 km W of Stara Kresna, BulgariaApril 4, 1904 · 184 km N of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 165 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 4,407 recorded deaths. The most severe:
- 1963M6.0
Macedonia: Skopje
26 Jul 1963 · 272 km away · intensity X
1,070 deaths$1.0 billion damage
- 1867M7.0
Mitilini; Turkey: Izmir
7 Mar 1867 · 288 km away
563 deathsSevere damage ($5–24M)tsunami
- 1953M7.2
Lixouri-Argostoli (Kephallenia)
12 Aug 1953 · 296 km away · intensity X
476 deaths$100 million damagetsunami
- 1894M6.7
Locride, Malesina-Martinon (Lokris)
20 Apr 1894 · 172 km away · intensity X
255 deathsSevere damage ($5–24M)
- 1920M6.2
Tepelene, Dragoti, Peshtani, Maricaj
26 Nov 1920 · 278 km away · intensity XI
200 deathsSevere damage ($5–24M)
- 1932M6.9
Hierissos-Strantonion (Chalkidiki)
26 Sep 1932 · 66 km away · intensity X
161 deathsExtreme damage ($25M+)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.