M1.6 earthquake 4 km SW of Cobb, California

A magnitude 1.6 earthquake struck 4 km SW of Cobb, California on Tue, Jan 19, 1988, 10:20 AM PST (18:20 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M1.6 8 km WNW of Cobb, 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: 167 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 167.

From the USGS Earthquake Hazards Program and its partner networks, event nc111172. Read Tue, Sep 22, 2026, 8:51 PM UTC.