Open Earth
6.3
EarthquakeMajor

M6.3 earthquake near Bozeman, Montana

24531 d ago · 18 Aug 1959, 15:26 UTC 22 km SW of Mammoth, Wyoming

What happened

A magnitude 6.3 earthquake struck 22 km SW of Mammoth, Wyoming on 18 Aug 1959, 15:26 UTC at a depth of 10 km.

Earthquakes of this size are classed as Strong. Can cause damage in populated areas up to tens of kilometres away. This was a shallow earthquake, which tends to be felt more strongly at the surface.

The nearest town in our records is Bozeman, about 97 km away in Montana, United States.

Timeline

  1. First reported by USGS

    16 Oct 2026, 20:46 UTC

Community

Did you feel it?

Nearby in the last 30 days