California earthquakes

M1.6 earthquake 26 km W of Volta, California

A magnitude 1.6 earthquake struck 26 km W of Volta, California on Sun, Sep 16, 1979, 6:35 AM PDT (13:35 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.6 5 km ENE of Chowchilla, 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
1.6 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1979-09-16 13:35:01 UTC
Depth
3.4 km (2.1 mi), shallow
Epicenter
37.085° N, 121.229° 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 0.3 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
134°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 176 in the 60 days after this one and 102 in the 30 days before it.

After

The first 60 of 176.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1047827. Read Thu, Oct 1, 2026, 5:02 PM UTC.