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7.1
EarthquakeExtreme

M7.1 earthquake near Twentynine Palms, California

9862 d ago · 16 Oct 1999, 09:46 UTC The 1999 Hector Mine, California Earthquake

What happened

A magnitude 7.1 earthquake struck The 1999 Hector Mine, California Earthquake on 16 Oct 1999, 09:46 UTC at a depth of 14 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 Twentynine Palms, about 55 km away in California, United States.

Timeline

  1. First reported by USGS

    16 Oct 2026, 20:46 UTC

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