M2.3 earthquake 10 km ESE of Willits, California

A magnitude 2.3 earthquake struck 10 km ESE of Willits, California on Wed, Sep 5, 1990, 4:22 PM PDT (23:22 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.6 6 km WNW of Covelo, 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: 154 in the 60 days after this one and 65 in the 30 days before it.

The first 60 of 154.

From the USGS Earthquake Hazards Program and its partner networks, event nc20092856. Read Sun, Oct 4, 2026, 10:55 AM UTC.