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Greece · Northern Aegean

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

UTC time: 2026-09-17 11:27:42 UTC Local time: —
Magnitude
M2.3
Depth
11.0 km
Source
AFAD

Northern Aegean · Chios Regional Unit

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About this earthquake

On September 17, 2026 at 11:27 UTC, a magnitude M2.3 earthquake occurred near Chios Regional Unit, Northern Aegean (Greece). With a focal depth of about 11 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The event was recorded by AFAD. Greece: 52 earthquakes were recorded in the past 24 hours, the strongest reaching M3.1.

Depth profile

Depth profile Depth: 11 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 11 km
Shallow
11 km
11 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: 218 km ·Complex ·Elevation: -18 m ·Last eruption: 1650 ·Greece
  • Methana
    Distance: 222 km ·Lava dome(s) ·Elevation: 380 m ·Last eruption: -258 ·Greece
  • Milos
    Distance: 223 km ·Stratovolcano(es) ·Elevation: 751 m ·Last eruption: 140 ·Greece
  • Santorini
    Distance: 232 km ·Shield(s) ·Elevation: 367 m ·Last eruption: 1950 ·Greece
  • Nisyros
    Distance: 250 km ·Stratovolcano ·Elevation: 698 m ·Last eruption: 1888 ·Greece
  • Kula
    Distance: 253 km ·Volcanic field ·Elevation: 750 m ·Turkiye

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Chios Island National AirportGreece · JKH · LGHI
    48.3 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 · 71 Catalogue entries

Of 70 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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