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Greece · South Aegean

M2.5 Earthquake near Thira Regional Unit, South Aegean (Greece)

UTC time: 2026-09-17 21:10:21 UTC Local time: —
Magnitude
M2.5
Depth
7.3 km
Source
EMSC

South Aegean · Thira Regional Unit

Country overview

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About this earthquake

A magnitude M2.5 earthquake was recorded near Thira Regional Unit, South Aegean (Greece) on September 17, 2026 at 21:10 UTC. The hypocenter lay relatively close to the surface at around 7 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by EMSC. Greece: over the past 24 hours, QuakeMap24 logged 59 earthquakes, the strongest at M3.1.

Depth profile

Depth profile Depth: 7.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 7.3 km
Shallow
7.3 km
7.3 km — shallower than the regional average (14.4 km)
Regional average: 14.4 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • Kolumbo
    Distance: 27 km ·Complex ·Elevation: -18 m ·Last eruption: 1650 ·Greece
  • Santorini
    Distance: 42 km ·Shield(s) ·Elevation: 367 m ·Last eruption: 1950 ·Greece
  • Milos
    Distance: 113 km ·Stratovolcano(es) ·Elevation: 751 m ·Last eruption: 140 ·Greece
  • Nisyros
    Distance: 130 km ·Stratovolcano ·Elevation: 698 m ·Last eruption: 1888 ·Greece
  • Methana
    Distance: 235 km ·Lava dome(s) ·Elevation: 380 m ·Last eruption: -258 ·Greece
  • Kula
    Distance: 325 km ·Volcanic field ·Elevation: 750 m ·Turkiye

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Santorini International AirportGreece · JTR · LGSR
    37.4 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-17

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

South Aegean

Context for this earthquake

17 Sep 2025 – 17 Sep 2026 · M ≥ 2.0 · 134 Catalogue entries

Of 133 other entries for this area and period, 62 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · Greece

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Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Greece

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

Stats (last 24h)

Global (24h)
545
Country (24h)
Greece
59
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