M1.6 earthquake 3 km N of Clearlake, California

A magnitude 1.6 earthquake struck 3 km N of Clearlake, California on Sat, Aug 24, 1985, 8:59 PM PDT (03:59 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.7 13 km NNW of Moskowite Corner, 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: 180 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 180.

From the USGS Earthquake Hazards Program and its partner networks, event nc55340. Read Wed, Sep 23, 2026, 3:33 AM UTC.