M2.4 earthquake 7 km SSE of Huron, California

A magnitude 2.4 earthquake struck 7 km SSE of Huron, California on Fri, Aug 23, 1985, 9:36 AM PDT (16:36 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M2.4 34 km W of Three Rocks, 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: 194 in the 60 days after this one and 2 in the 30 days before it.

The first 60 of 194.

From the USGS Earthquake Hazards Program and its partner networks, event nc53709 (also filed as ci110890). Read Wed, Sep 23, 2026, 8:14 PM UTC.