M2.0 earthquake 5 km WSW of Cobb, California

A magnitude 2.0 earthquake struck 5 km WSW of Cobb, California on Sat, Sep 13, 1986, 5:30 PM PDT (00:30 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M2.0 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: 153 in the 60 days after this one and 9 in the 30 days before it.

The first 60 of 153.

From the USGS Earthquake Hazards Program and its partner networks, event nc82425. Read Wed, Sep 23, 2026, 5:27 PM UTC.