M1.8 earthquake Central California

A magnitude 1.8 earthquake struck in Central California on Sat, Feb 12, 1983, 5:51 AM PST (13:51 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M2.3 8 km ESE of Mammoth Lakes, California. 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 nc1087749. Read Wed, Sep 23, 2026, 3:33 AM UTC.