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Greece

M4.0 Earthquake near IONIAN SEA (Greece)

UTC time: 2025-09-28 02:36:24 UTC Local time: —
Magnitude
M4.0
Depth
23.6 km
Source
EMSC

Apokentromene Dioikese Peloponnesou, Dytikes Elladas kai Ioniou

Country overview

Map

M4.0 Earthquake near IONIAN SEA (Greece) · 2025-09-28 — Map showing the location of the epicenter
M4.0 Earthquake near IONIAN SEA (Greece) · 2025-09-28 — Map showing the location of the epicenter

About this earthquake

On September 28, 2025 at 02:36 UTC, a magnitude M4.0 earthquake occurred near IONIAN SEA (Greece). With a focal depth of about 24 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The data is provided by EMSC and cross-checked across seismological networks. Greece: over the past 24 hours, QuakeMap24 logged 110 earthquakes, the strongest at M3.7.

Details

ID
bf29335ce4f08e8081488f49a11345e7473234e9
Magnitude
M4.0
Depth
23.6 km
UTC time
2025-09-28 02:36:24 UTC
Local time
—
Country
Greece
City
Apokentromene Dioikese Peloponnesou, Dytikes Elladas kai Ioniou
Source
emsc
Coordinates
37.53570, 20.85480
Temperature
22.1°C

Depth profile

Depth profile Depth: 23.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 23.6 km
Shallow
23.6 km
23.6 km — deeper 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

Felt reports

8felt reports at EMSC / LastQuake

Voluntary reports of feeling this earthquake. The count is not an intensity measurement and is not added to USGS DYFI reports.

Data updated: Sep 28, 2025, 8:49 PM UTC · Last checked: Sep 6, 2026, 12:16 PM UTC

Source: EMSC / LastQuake

Volcanoes nearby

  • Methana
    Distance: 219 km ·Lava dome(s) ·Elevation: 380 m ·Last eruption: -258 ·Greece
  • Milos
    Distance: 331 km ·Stratovolcano(es) ·Elevation: 751 m ·Last eruption: 140 ·Greece
  • Santorini
    Distance: 423 km ·Shield(s) ·Elevation: 367 m ·Last eruption: 1950 ·Greece
  • Kolumbo
    Distance: 426 km ·Complex ·Elevation: -18 m ·Last eruption: 1650 ·Greece

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Zakynthos International Airport Dionysios SolomosGreece · ZTH · LGZA
    24.1 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-20

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

Greece

Context for this earthquake

20 Sep 2025 – 20 Sep 2026 · M ≥ 3.0 · 867 Catalogue entries

Of 866 other entries for this area and period, 156 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · Greece

Open history map
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.

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