California earthquakes

M2.4 earthquake 11 km ENE of Trinity Village, California

A magnitude 2.4 earthquake struck 11 km ENE of Trinity Village, California on Thu, Nov 19, 1981, 9:56 PM PST (05:56 UTC), 29 km (18 mi) below the surface.

A larger quake followed: M3.2 5 km NW of Manila, 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: 2.4 (md), micro
Local time: Thu, Nov 19, 1981, 9:56 PM PST
UTC: 1981-11-20 05:56:10 UTC
Depth: 29.3 km (18.2 mi), shallow
Epicenter: 40.914° N, 123.401° 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 5.3 km horizontally, 4.3 km in depth
Depth from: From location
Station coverage gap: 274°, poorly surrounded by stations
Stations used: 6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 49 in the 60 days after this one and 30 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1069592. Read Sun, Sep 27, 2026, 4:26 AM UTC.