California earthquakes

M2.3 earthquake 5km NNW of Brawley, CA

A magnitude 2.3 earthquake struck 5km NNW of Brawley, CA on Fri, Feb 10, 1978, 4:13 PM PST (00:13 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.7 4km NNW of Guadalupe Victoria, B.C., MX. 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
2.3 (Mc), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1978-02-11 00:13:49 UTC
Depth
8.4 km (5.2 mi), shallow
Epicenter
33.017° N, 115.547° 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 0.7 km horizontally, 1.6 km in depth
Depth from
From location
Station coverage gap
55°
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 184 in the 60 days after this one and 125 in the 30 days before it.

After

The first 60 of 184.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3337314. Read Fri, Oct 2, 2026, 8:45 PM UTC.