California earthquakes

M2.8 earthquake 87 km WSW of Ferndale, California

A magnitude 2.8 earthquake struck 87 km WSW of Ferndale, California on Fri, Jan 23, 1981, 11:30 AM PST (19:30 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M4.7 130 km W of Ferndale, California. This one was a foreshock.

Ferndale forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
2.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1981-01-23 19:30:52 UTC
Depth
23.2 km (14.4 mi), shallow
Epicenter
40.401° N, 125.272° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 2.0 km horizontally, 13.5 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
289°, poorly surrounded by stations
Stations used
19

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 94 in the 60 days after this one and 88 in the 30 days before it.

After

The first 60 of 94.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1059534. Read Thu, Oct 1, 2026, 10:25 PM UTC.