M3.2 earthquake 2 km WNW of Walker, California

A magnitude 3.2 earthquake struck 2 km WNW of Walker, California on Thu, Jul 8, 2021, 3:57 PM PDT (22:57 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M4.6 29km ENE of Dardanelle, 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
3.2	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.069 · 28 stations
3.3	ML, local (Richter)	Nevada Seismological Laboratory	Reviewed · ±0.36 · 6 stations

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

17 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 17 in the 30 days before it.

The first 60 of at least 199.

From the USGS Earthquake Hazards Program and its partner networks, event us6000etc9 (also filed as nn00811155). Read Sat, Oct 3, 2026, 11:16 AM UTC.