M2.1 earthquake 5 km S of Gilroy, California

A magnitude 2.1 earthquake struck 5 km S of Gilroy, California on Sat, Jan 18, 1986, 6:33 AM PST (14:33 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.3 37 km WNW of Three Rocks, 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: 191 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 191.

From the USGS Earthquake Hazards Program and its partner networks, event nc63866. Read Tue, Sep 22, 2026, 8:57 PM UTC.