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Greece · Northern Aegean

M2.3 Earthquake near Chios Regional Unit, Northern Aegean (Greece)

UTC time: 2026-09-17 11:27:43 UTC Local time: —
Magnitude
M2.3
Depth
13.0 km
Source
EMSC

Northern Aegean · Chios Regional Unit

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About this earthquake

A magnitude M2.3 earthquake was recorded near Chios Regional Unit, Northern Aegean (Greece) on September 17, 2026 at 11:27 UTC. The hypocenter lay relatively close to the surface at around 13 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The data is provided by EMSC and cross-checked across seismological networks. Greece: 50 earthquakes were recorded in the past 24 hours, the strongest reaching M3.1.

Depth profile

Depth profile Depth: 13 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 13 km
Shallow
13 km
13 km — close to 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: 229 km ·Complex ·Elevation: -18 m ·Last eruption: 1650 ·Greece
  • Kula
    Distance: 235 km ·Volcanic field ·Elevation: 750 m ·Turkiye
  • Milos
    Distance: 241 km ·Stratovolcano(es) ·Elevation: 751 m ·Last eruption: 140 ·Greece
  • Methana
    Distance: 242 km ·Lava dome(s) ·Elevation: 380 m ·Last eruption: -258 ·Greece
  • Santorini
    Distance: 244 km ·Shield(s) ·Elevation: 367 m ·Last eruption: 1950 ·Greece
  • Nisyros
    Distance: 250 km ·Stratovolcano ·Elevation: 698 m ·Last eruption: 1888 ·Greece

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Chios Island National AirportGreece · JKH · LGHI
    37.5 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

Northern Aegean

Context for this earthquake

17 Sep 2025 – 17 Sep 2026 · M ≥ 2.0 · 72 Catalogue entries

Of 71 other entries for this area and period, 39 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.

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