M3.0 earthquake 24km NNW of Tehachapi, CA

A magnitude 3.0 earthquake struck 24km NNW of Tehachapi, CA on Sat, Oct 31, 2020, 1:57 PM PDT (20:57 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M3.6 17km ESE of Little Lake, 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
3.02	ML, local (Richter)	Southern California Seismic Network	Preferred · Final · ±0.191 · 260 stations
2.7	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.038 · 92 stations

7 people reported to the USGS what they felt; the strongest reported shaking was IV, light 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: 137 in the 60 days after this one and 69 in the 30 days before it.

The first 60 of 137.

From the USGS Earthquake Hazards Program and its partner networks, event ci39452551 (also filed as us7000c8rc). Read Sun, Oct 4, 2026, 9:04 PM UTC.