M1.9 earthquake 14 km E of Angwin, California

A magnitude 1.9 earthquake struck 14 km E of Angwin, California on Wed, Nov 13, 1985, 9:32 PM PST (05:32 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M2.6 20 km ENE of Clearlake, 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: 176 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 176.

From the USGS Earthquake Hazards Program and its partner networks, event nc59345. Read Tue, Sep 22, 2026, 6:53 PM UTC.