California earthquakes

M4.7 earthquake 8km SW of Brawley, CA

A magnitude 4.7 earthquake struck 8km SW of Brawley, CA on Tue, Oct 16, 1979, 4:46 AM PDT (11:46 UTC), 10 km (6 mi) below the surface.

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The earthquake

Magnitude: 4.7 (ml), light
Local time: Tue, Oct 16, 1979, 4:46 AM PDT
UTC: 1979-10-16 11:46:55 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 32.930° N, 115.589° W
Region: California
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 0.9 km horizontally, 31.6 km in depth
Magnitude uncertainty: ±0.32
Depth from: Operator assigned
Station coverage gap: 73°
Stations used: 79

Nearest places

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

Nearby

Within 100 km, magnitude 1.7 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 ci3352292 (also filed as ushis3545, usp00013fs). Read Tue, Sep 22, 2026, 8:52 PM UTC.