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7.7
EarthquakeExtreme

M7.7 earthquake near Kos, South Aegean

25666 d ago · 9 Jul 1956, 03:11 UTC 19 km SSE of Amorgós, Greece

What happened

A magnitude 7.7 earthquake struck 19 km SSE of Amorgós, Greece on 9 Jul 1956, 03:11 UTC at a depth of 20 km.

Earthquakes of this size are classed as Major. Can cause serious damage over large areas. This was a shallow earthquake, which tends to be felt more strongly at the surface.

The nearest town in our records is Kos, about 122 km away in South Aegean, Greece.

Timeline

  1. First reported by USGS

    16 Oct 2026, 20:46 UTC

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