California earthquakes

M1.9 earthquake 19 km SSW of Volta, California

A magnitude 1.9 earthquake struck 19 km SSW of Volta, California on Mon, Dec 13, 1982, 12:16 AM PST (08:16 UTC), 6 km (4 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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Map

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

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The earthquake

Magnitude
1.9 (md), micro
Local time
UTC
1982-12-13 08:16:57 UTC
Depth
6.4 km (4.0 mi), shallow
Epicenter
36.936° N, 121.007° 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, 0.9 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
158°
Stations used
54

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 135 in the 60 days after this one and 85 in the 30 days before it.

After

The first 60 of 135.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1083032. Read Thu, Sep 24, 2026, 11:32 AM UTC.