M2.7 earthquake 240 km W of Ferndale, California
A magnitude 2.7 earthquake struck 240 km W of Ferndale, California on Sun, Jun 27, 2021, 9:11 PM PDT (04:11 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M2.9 240 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
- 2.7 (ML, local (Richter)), micro
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-06-28 04:11:40 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 40.701° N, 127.106° 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 9.9 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- Operator assigned
- Station coverage gap
- 284°, poorly surrounded by stations
- Stations used
- 23
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 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 us6000eqeq. Read Sun, Oct 4, 2026, 6:41 PM UTC.