M1.7 earthquake 14 km NE of Willits, California

A magnitude 1.7 earthquake struck 14 km NE of Willits, California on Fri, Oct 10, 1986, 1:31 AM PDT (08:31 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M1.8 10 km SSW of Laytonville, 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: 138 in the 60 days after this one and 56 in the 30 days before it.

The first 60 of 138.

From the USGS Earthquake Hazards Program and its partner networks, event nc1144407. Read Tue, Sep 22, 2026, 9:29 PM UTC.