California earthquakes

M2.3 earthquake 5km WNW of El Centro, CA

A magnitude 2.3 earthquake struck 5km WNW of El Centro, CA on Tue, Jan 31, 1978, 5:06 AM PST (13:06 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.8 9km WSW of Estacion Coahuila, 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 (Mh), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1978-01-31 13:06:12 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
32.812° N, 115.601° 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 0.8 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.30
Depth from
Operator assigned
Station coverage gap
108°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 198 in the 60 days after this one and 97 in the 30 days before it.

After

The first 60 of 198.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci9998458. Read Thu, Oct 1, 2026, 11:38 PM UTC.