California earthquakes

M3.0 earthquake 19 km S of Three Rocks, California

A magnitude 3.0 earthquake struck 19 km S of Three Rocks, California on Wed, Jan 12, 1983, 11:12 PM PST (07:12 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.2 37 km SSW of South Dos Palos, California. This one was a foreshock.

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

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The earthquake

Magnitude: 3.0 (md), micro
Local time: Wed, Jan 12, 1983, 11:12 PM PST
UTC: 1983-01-13 07:12:46 UTC
Depth: 8.0 km (5.0 mi), shallow
Epicenter: 36.325° N, 120.371° W
Region: California
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 0.4 km horizontally, 0.9 km in depth
Magnitude uncertainty: ±0.12
Depth from: From location
Station coverage gap: 202°, poorly surrounded by stations
Stations used: 58

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 131 in the 60 days after this one and 52 in the 30 days before it.

After

The first 60 of 131.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1085490 (also filed as ci502126, usp0001s6e). Read Wed, Sep 30, 2026, 2:29 AM UTC.