M2.9 earthquake 5 km E of Angwin, California

A magnitude 2.9 earthquake struck 5 km E of Angwin, California on Sat, Mar 10, 1984, 1:48 PM PST (21:48 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M3.0 5 km WSW of Cobb, 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: 163 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 163.

From the USGS Earthquake Hazards Program and its partner networks, event nc9812. Read Tue, Sep 22, 2026, 5:21 PM UTC.