California earthquakes

M2.8 earthquake 17 km ENE of Mountain Gate, California

A magnitude 2.8 earthquake struck 17 km ENE of Mountain Gate, California on Sat, Nov 26, 1983, 5:29 AM PST (13:29 UTC), 17 km (11 mi) below the surface.

A larger quake followed: M2.8 5 km N of French Gulch, 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: 2.8 (md), micro
Local time: Sat, Nov 26, 1983, 5:29 AM PST
UTC: 1983-11-26 13:29:28 UTC
Depth: 17.4 km (10.8 mi), shallow
Epicenter: 40.801° N, 122.160° 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: ±0.11
Depth from: From location
Station coverage gap: 60°
Stations used: 22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 56 in the 60 days after this one and 19 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1107514. Read Tue, Sep 22, 2026, 8:46 AM UTC.