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4.5MAG

LIGHT EARTHQUAKE

2 km E of Ástros, Greece

USGS

A magnitude 4.5 earthquake struck 2 km E of Ástros, Greece on 28 Aug 2026, 23:55 UTC. The hypocentre was 85.8 km below the surface — intermediate by seismological convention. 3 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.

Depth
85.8 km

intermediate

Latitude
37.41°N

22.75°E longitude

Time
23:55 UTC

28 Aug 2026

Magnitude
M4.5

mb

EPICENTRE

View the official report

MAGNITUDE 4.5

Noticeable shaking of indoor objects. Damage is unlikely.

The scale is logarithmic: this released about 180 times the energy of a magnitude 3.0, roughly the energy of 85 tonnes of TNT.

85.8 KM DEEP

At this depth the energy spreads before it reaches the surface. Shaking is usually weaker than a shallow earthquake of the same size, but it can be felt across a wider area.

NEARBY IN THE PAST 30 DAYS

3 earthquakes above our reporting threshold within 250 km of this one, the largest a magnitude 4.8.

OTHER RECENT EARTHQUAKES

M4.5 earthquake — Ástros, Greece · Quakewire