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7.7
EarthquakeExtreme

M7.7 earthquake near Miahuatlán de Porfirio Díaz, Oaxaca

17488 d ago · 29 Nov 1978, 19:52 UTC 2 km ESE of San Agustín Loxicha, Mexico

What happened

A magnitude 7.7 earthquake struck 2 km ESE of San Agustín Loxicha, Mexico on 29 Nov 1978, 19:52 UTC at a depth of 18 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 Miahuatlán de Porfirio Díaz, about 35 km away in Oaxaca, Mexico.

Timeline

  1. First reported by USGS

    16 Oct 2026, 20:46 UTC

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