M2.6 earthquake 6 km SSE of Three Rocks, California

A magnitude 2.6 earthquake struck 6 km SSE of Three Rocks, California on Wed, Aug 1, 1984, 7:06 PM PDT (02:06 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.5 11 km SSE of Huron, California. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 1.5 and up: 190 in the 60 days after this one and 73 in the 30 days before it.

The first 60 of 190.

From the USGS Earthquake Hazards Program and its partner networks, event nc24764 (also filed as ci46644). Read Wed, Sep 30, 2026, 6:19 PM UTC.