California earthquakes

M4.1 earthquake 12 km SW of Huron, California

A magnitude 4.1 earthquake struck 12 km SW of Huron, California on Mon, May 2, 1983, 6:41 PM PDT (01:41 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M5.2 12 km NNE of Coalinga, California. This one was a foreshock.

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The earthquake

Magnitude: 4.1 (ma), light
Local time: Mon, May 2, 1983, 6:41 PM PDT
UTC: 1983-05-03 01:41:45 UTC
Depth: 7.5 km (4.7 mi), shallow
Epicenter: 36.139° N, 120.218° 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 0.5 km horizontally, 0.7 km in depth
Magnitude uncertainty: ±0.11
Depth from: From location
Station coverage gap: 217°, poorly surrounded by stations
Stations used: 53

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and 135 in the 30 days before it.

After

The first 60 of at least 201.

Before

Earthquakes today California earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1091183 (also filed as ushis3791, usp0001uy0, ci1105883). Read Wed, Sep 30, 2026, 10:31 PM UTC.