M1.6 earthquake 15 km E of Seven Trees, California

A magnitude 1.6 earthquake struck 15 km E of Seven Trees, California on Tue, Feb 11, 1986, 3:50 AM PST (11:50 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M1.7 13 km NE of East Foothills, 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: 193 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 193.

From the USGS Earthquake Hazards Program and its partner networks, event nc66201. Read Tue, Sep 22, 2026, 9:40 PM UTC.