M3.5 earthquake 53 km W of Samoa, California

A magnitude 3.5 earthquake struck 53 km W of Samoa, California on Tue, Nov 11, 1980, 3:57 AM PST (11:57 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.6 123 km W of Ferndale, 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: 200 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 200.

From the USGS Earthquake Hazards Program and its partner networks, event nc1056890. Read Tue, Sep 22, 2026, 7:51 AM UTC.