California earthquakes

M2.7 earthquake 3km WSW of Brawley, CA

A magnitude 2.7 earthquake struck 3km WSW of Brawley, CA on Sun, Oct 30, 1983, 12:46 PM PST (20:46 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M3.0 22km W of Alberto Oviedo Mota, 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
2.7 (mc), micro
Local time
UTC
1983-10-30 20:46:40 UTC
Depth
15.3 km (9.5 mi), shallow
Epicenter
32.968° N, 115.556° 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 0.4 km horizontally, 0.7 km in depth
Depth from
From location
Station coverage gap
54°
Stations used
41

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 192 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 192.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci23837. Read Tue, Sep 22, 2026, 9:44 AM UTC.