M1.9 earthquake 30km WNW of Coso Junction, CA

A magnitude 1.9 earthquake struck 30km WNW of Coso Junction, CA on Sun, Aug 22, 1982, 3:08 AM PDT (10:08 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.8 10km NE of Inyokern, 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.

Reviewed by a seismologist.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 200.

From the USGS Earthquake Hazards Program and its partner networks, event ci506830. Read Wed, Sep 23, 2026, 5:04 AM UTC.