M2.1 earthquake 1km WNW of Lake Davis, CA

A magnitude 2.1 earthquake struck 1km WNW of Lake Davis, CA on Sun, Aug 1, 2021, 2:00 AM PDT (09:00 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M2.8 11km NNE of Lake Davis, 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
2.06	Md, duration	Northern California Seismic System	Preferred · Final · ±0.135 · 23 stations
1.6	ML, local (Richter)	Nevada Seismological Laboratory	Reviewed · ±0.27 · 8 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: 23 in the 60 days after this one and 6 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event nc73603756 (also filed as nn00817261). Read Mon, Oct 5, 2026, 3:06 AM UTC.