M1.8 earthquake 12km NNE of Cabazon, CA

A magnitude 1.8 earthquake struck 12km NNE of Cabazon, CA on Thu, Mar 5, 1987, 10:18 PM PST (06:18 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.2 2km SSW of Loma Linda, 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: 174 in the 60 days after this one and 171 in the 30 days before it.

The first 60 of 174.

From the USGS Earthquake Hazards Program and its partner networks, event ci718387. Read Thu, Oct 1, 2026, 5:16 AM UTC.