California earthquakes

M3.8 earthquake 1 km SE of Mesa, California

A magnitude 3.8 earthquake struck 1 km SE of Mesa, California on Fri, Jan 13, 1984, 4:42 PM PST (00:42 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M4.5 3 km S of Round Valley, 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
3.8 (ml), minor
Local time
UTC
1984-01-14 00:42:22 UTC
Depth
13.2 km (8.2 mi), shallow
Epicenter
37.409° N, 118.526° 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 2.0 km horizontally, 1.4 km in depth
Depth from
From location
Station coverage gap
253°, poorly surrounded by stations
Stations used
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 172 in the 60 days after this one and 96 in the 30 days before it.

After

The first 60 of 172.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1801 (also filed as usp000217h, ci29237). Read Tue, Sep 29, 2026, 1:51 PM UTC.