M2.0 earthquake 40km WSW of Tecopa, CA

A magnitude 2.0 earthquake struck 40km WSW of Tecopa, CA on Wed, Dec 15, 2021, 12:21 PM PST (20:21 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M2.9 20km E 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
1.99	ML, local (Richter)	Southern California Seismic Network	Preferred · Final · ±0.108 · 22 stations
1.6	ML, local (Richter)	Nevada Seismological Laboratory	Reviewed · ±0.96 · 7 stations

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: 76 in the 60 days after this one and 27 in the 30 days before it.

The first 60 of 76.

From the USGS Earthquake Hazards Program and its partner networks, event ci40128456 (also filed as nn00829992). Read Sun, Oct 4, 2026, 11:02 PM UTC.