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M1.1 Depth: 5.0 km

M1.1 Earthquake near Regional Unit of Islands, Attica (Greece)

UTC time: 2026-08-21 01:40:09 UTC Local time: —

About this earthquake

A magnitude M1.1 earthquake was recorded near Regional Unit of Islands, Attica (Greece) on August 21, 2026 at 01:40 UTC. With a focal depth of about 5 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 NOA. Greece: 72 earthquakes were recorded in the past 24 hours, the strongest reaching M2.9.

Map

Depth profile

Depth profile Depth: 5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 5 km
Shallow
5 km
5 km — shallower than the regional average (14.6 km)
Regional average: 14.6 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

  • Methana
    Distance: 27 km ·Lava dome(s) ·Elevation: 380 m ·Last eruption: -258 ·Greece
  • Milos
    Distance: 115 km ·Stratovolcano(es) ·Elevation: 751 m ·Last eruption: 140 ·Greece
  • Kolumbo
    Distance: 199 km ·Complex ·Elevation: -18 m ·Last eruption: 1650 ·Greece
  • Santorini
    Distance: 200 km ·Shield(s) ·Elevation: 367 m ·Last eruption: 1950 ·Greece
  • Nisyros
    Distance: 333 km ·Stratovolcano ·Elevation: 698 m ·Last eruption: 1888 ·Greece
  • Kula
    Distance: 451 km ·Volcanic field ·Elevation: 750 m ·Turkiye

Historic earthquake map · Greece

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Country statistics · Greece

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

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