M1.5 earthquake 4 km NNE of Walker, California

A magnitude 1.5 earthquake struck 4 km NNE of Walker, California on Wed, Sep 22, 2021, 3:24 PM PDT (22:24 UTC), 0 km (0 mi) below the surface.

Automatic solution: the magnitude and location may still be revised.

A larger quake followed: M3.8 28km SE of Markleeville, CA. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

An automatic solution; a seismologist may revise it.

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 at least 200 in the 30 days before it.

The first 60 of at least 199.

From the USGS Earthquake Hazards Program and its partner networks, event nn00823074. Read Sun, Oct 4, 2026, 8:07 AM UTC.