California earthquakes

M3.2 earthquake 7km NNE of Brawley, CA

A magnitude 3.2 earthquake struck 7km NNE of Brawley, CA on Thu, Oct 18, 1979, 7:56 AM PDT (14:56 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M3.4 2km SW of Guadalupe Victoria, B.C., MX. 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
3.2 (ml), minor
Local time
UTC
1979-10-18 14:56:19 UTC
Depth
15.0 km (9.3 mi), shallow
Epicenter
33.038° N, 115.499° 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, 31.6 km in depth
Magnitude uncertainty
±0.21
Depth from
Operator assigned
Station coverage gap
44°
Stations used
36

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 178 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 178.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3352849 (also filed as usp00013jy). Read Tue, Sep 22, 2026, 10:01 AM UTC.