M4.8 earthquake 7 km S of Willits, California
A magnitude 4.8 earthquake struck 7 km S of Willits, California on Sun, Nov 11, 1973, 7:39 PM PST (03:39 UTC), 18 km (11 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb), light
- Local time
- UTC
- 1973-11-12 03:39:39 UTC
- Depth
- 18.0 km (11.2 mi), shallow
- Epicenter
- 39.343° N, 123.363° W
- Region
- California
- Strongest shaking
- IV, light shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- IV, light shaking
- Peak ground acceleration
- 5.6% of gravity
- Peak ground velocity
- 0.8 cm/s
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Stations used
- 30
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 3 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayCalifornia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000044k. Read Tue, Sep 29, 2026, 3:37 AM UTC.