M3.0 earthquake 10 km W of Cobb, California

A magnitude 3.0 earthquake struck 10 km W of Cobb, California on Fri, Nov 14, 1986, 1:24 PM PST (21:24 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.3 Northern 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: 181 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 181.

From the USGS Earthquake Hazards Program and its partner networks, event nc1145285. Read Tue, Sep 22, 2026, 10:55 AM UTC.