M2.0 earthquake 3km NE of Colton, CA

A magnitude 2.0 earthquake struck 3km NE of Colton, CA on Thu, Jan 7, 1982, 6:51 AM PST (14:51 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.1 4km NE of Rancho Cucamonga, 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: 162 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 162.

From the USGS Earthquake Hazards Program and its partner networks, event ci104358. Read Tue, Sep 22, 2026, 4:51 PM UTC.