M2.3 earthquake 12km W of Anza, CA

A magnitude 2.3 earthquake struck 12km W of Anza, CA on Tue, Mar 26, 1985, 3:42 AM PST (11:42 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M2.4 12km SSW of Ocotillo Wells, CA. 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: 180 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 180.

From the USGS Earthquake Hazards Program and its partner networks, event ci63248. Read Tue, Sep 22, 2026, 10:24 PM UTC.