QuakeScout
Magnitude2.5

Reported by EMSC19d ago

M2.5 earthquake in Aegean Sea

Monday, September 7, 2026, 11:10:59 UTC · 39.960°N, 23.400°E

A magnitude 2.5 earthquake struck in Aegean Sea on Monday, September 7, 2026, 11:10:59 UTC, at a depth of 11.0 km (shallow).

Magnitude
2.5
Minor · ml
Depth
11 km
Shallow
Reported by
EMSC
Agency EMSC
Nearest tracker
76 km
from Volos

Outlined circle: this earthquakeDashed circle: 50 km aftershock search area

In context

How big was it, and why here?

Energy released

85 kg of TNT

That is about 1/177,558 of the Hiroshima bomb. A magnitude 5.0 releases about 5,623 times more energy.

Tectonic setting

43 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

11 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 list 1 M2.5+ earthquake within 50 km since this event; the largest was M3.1 on September 13, 2026. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.

M31h6h1d3d7d14dMainshock M2.5
Time after the mainshock on a logarithmic scale (first hours stretched), magnitude on the vertical axis. M2.5+ events from USGS.
  1. 3.1Greece13d ago · 24 km NW of this epicenter

Regional history

Past M5+ earthquakes within 300 km

USGS lists 505 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:

  1. 7.2Aegean SeaNovember 8, 1905 · 106 km E of this epicenter
  2. 7.261 km W of Eresós, GreeceDecember 19, 1981 · 176 km SE of this epicenter
  3. 7.29 km NNW of Karaburun, TurkeyJuly 23, 1949 · 299 km SE of this epicenter
  4. 7.13 km W of Brezovo, BulgariaApril 18, 1928 · 299 km NE of this epicenter
  5. 7.07 km SE of Stara Kresna, BulgariaApril 4, 1904 · 200 km N of this epicenter
  6. 7.055 km S of Mýrina, GreeceFebruary 19, 1968 · 149 km SE of this epicenter
  7. 6.97 km NNE of Ágios Nikólaos, GreeceSeptember 26, 1932 · 49 km NE of this epicenter
  8. 6.921 km SSW of Kamariótissa, GreeceMay 24, 2014 · 173 km E of this epicenter

History · NOAA

Deadliest earthquakes in this area

NOAA’s significant-earthquake database lists 163 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 4,288 recorded deaths. The most severe:

  1. 1963M6.0

    Macedonia: Skopje

    26 Jul 1963 · 296 km away · intensity X

    1,070 deaths$1.0 billion damage

  2. 1867M7.0

    Mitilini; Turkey: Izmir

    7 Mar 1867 · 271 km away

    563 deathsSevere damage ($5–24M)tsunami

  3. 1953M7.2

    Lixouri-Argostoli (Kephallenia)

    12 Aug 1953 · 290 km away · intensity X

    476 deaths$100 million damagetsunami

  4. 1894M6.7

    Locride, Malesina-Martinon (Lokris)

    20 Apr 1894 · 152 km away · intensity X

    255 deathsSevere damage ($5–24M)

  5. 1920M6.2

    Tepelene, Dragoti, Peshtani, Maricaj

    26 Nov 1920 · 290 km away · intensity XI

    200 deathsSevere damage ($5–24M)

  6. 1932M6.9

    Hierissos-Strantonion (Chalkidiki)

    26 Sep 1932 · 74 km away · intensity X

    161 deathsExtreme damage ($25M+)tsunami

NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.

Nearby trackers

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