M3.4 earthquake 21 km W of Ferndale, California

A magnitude 3.4 earthquake struck 21 km W of Ferndale, California on Thu, Apr 15, 1982, 1:04 AM PST (09:04 UTC), 29 km (18 mi) below the surface.

A larger quake followed: M3.8 32 km W of Big Lagoon, 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: 91 in the 60 days after this one and 47 in the 30 days before it.

The first 60 of 91.

From the USGS Earthquake Hazards Program and its partner networks, event nc1073737. Read Tue, Sep 22, 2026, 9:33 PM UTC.