California earthquakes

M3.5 earthquake 6 km WNW of Williams, California

A magnitude 3.5 earthquake struck 6 km WNW of Williams, California on Sat, Dec 4, 1982, 7:11 AM PST (15:11 UTC), 15 km (9 mi) below the surface.

Williams forecastMore in California

Map

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

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The earthquake

Magnitude
3.5 (md), minor
Local time
UTC
1982-12-04 15:11:25 UTC
Depth
15.2 km (9.4 mi), shallow
Epicenter
39.186° N, 122.219° W
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, 0.5 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
86°
Stations used
42

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 147 in the 60 days after this one and 82 in the 30 days before it.

After

The first 60 of 147.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1082634. Read Tue, Sep 29, 2026, 1:34 AM UTC.