M1.7 earthquake 3km ESE of Compton, CA

A magnitude 1.7 earthquake struck 3km ESE of Compton, CA on Mon, Jul 2, 1973, 10:14 PM PDT (05:14 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.5 13km SSW of Acton, 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: 92 in the 60 days after this one and 49 in the 30 days before it.

The first 60 of 92.

From the USGS Earthquake Hazards Program and its partner networks, event ci12318455. Read Tue, Sep 29, 2026, 11:11 AM UTC.