M2.5 earthquake 11km ESE of Willits, CA

A magnitude 2.5 earthquake struck 11km ESE of Willits, CA on Fri, Oct 23, 2020, 11:53 PM PDT (06:53 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.4 13km W of Lakeport, CA. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
2.51	Md, duration	Northern California Seismic System	Preferred · Final · ±0.174 · 45 stations
2.3	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.047 · 60 stations

14 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

Reviewed by a seismologist.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 113 in the 30 days before it.

The first 60 of at least 199.

From the USGS Earthquake Hazards Program and its partner networks, event nc73474511 (also filed as us6000cchm). Read Mon, Oct 5, 2026, 10:42 AM UTC.