M1.9 earthquake 13 km NW of Benton, California

A magnitude 1.9 earthquake struck 13 km NW of Benton, California on Tue, Sep 22, 1987, 8:43 PM PDT (03:43 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M2.2 1 km NW of Mesa, California. 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: 199 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 199.

From the USGS Earthquake Hazards Program and its partner networks, event nc106216. Read Tue, Sep 22, 2026, 10:31 PM UTC.