M1.7 earthquake 7km S of Brawley, CA

A magnitude 1.7 earthquake struck 7km S of Brawley, CA on Thu, Apr 30, 1981, 3:03 AM PDT (10:03 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M3.6 6km SSW of Salton City, CA. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 196 in the 60 days after this one and 199 in the 30 days before it.

The first 60 of 196.

From the USGS Earthquake Hazards Program and its partner networks, event ci515072. Read Sat, Oct 3, 2026, 5:57 AM UTC.