M3.0 earthquake 203 km W of Ferndale, California
A magnitude 3.0 earthquake struck 203 km W of Ferndale, California on Thu, Apr 22, 2021, 11:45 PM PDT (06:45 UTC), 16 km (10 mi) below the surface.
A larger quake followed: M4.3 265 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.
The earthquake
- Magnitude
- 3.0 (ML, local (Richter)), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-04-23 06:45:55 UTC
- Depth
- 16.1 km (10.0 mi), shallow
- Epicenter
- 40.761° N, 126.661° W
- Region
- California
- 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 11.3 km horizontally, 15.0 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 263°, poorly surrounded by stations
- Stations used
- 41
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 3 in the 30 days before it.
After
- 2.8189 km W of Ferndale, California · 1990 days ago · 10 km deep · 16 km away
- 2.6186 km W of Ferndale, California · 1990 days ago · 10 km deep · 24 km away
- 3.0170 km W of Ferndale, California · 1984 days ago · 11 km deep · 52 km away
- 4.3265 km W of Ferndale, California · 1982 days ago · 10 km deep · 67 km away · felt by 1
- 3.2135km W of Petrolia, CA · 1948 days ago · 23 km deep · 74 km away · felt by 1
Before
Earthquakes todayCalifornia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000e3w2. Read Sun, Oct 4, 2026, 8:39 PM UTC.