California earthquakes

M3.4 earthquake 6 km E of Willits, California

A magnitude 3.4 earthquake struck 6 km E of Willits, California on Wed, Nov 23, 1977, 5:53 AM PST (13:53 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M3.5 5 km ENE of Willits, California. This one was a foreshock.

Willits 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
3.4 (ml), minor
Local time
UTC
1977-11-23 13:53:54 UTC
Depth
10.9 km (6.8 mi), shallow
Epicenter
39.404° N, 123.285° 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 0.4 km horizontally, 0.7 km in depth
Depth from
From location
Station coverage gap
138°
Stations used
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 98 in the 60 days after this one and 35 in the 30 days before it.

After

The first 60 of 98.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1037823 (also filed as usp0000rpf). Read Tue, Sep 22, 2026, 7:27 AM UTC.