California earthquakes

M2.5 earthquake 141 km W of Ferndale, California

A magnitude 2.5 earthquake struck 141 km W of Ferndale, California on Thu, Dec 9, 1982, 3:46 PM PST (23:46 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M4.4 108 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.

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The earthquake

Magnitude
2.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1982-12-09 23:46:22 UTC
Depth
12.0 km (7.5 mi), shallow
Epicenter
40.541° N, 125.938° 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 7.3 km horizontally, 9.2 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
300°, poorly surrounded by stations
Stations used
27

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.4108 km W of Ferndale, California · 16003 days ago · 2 km deep · 37 km away
  2. 2.9102 km W of Ferndale, California · 16002 days ago · 4 km deep · 43 km away
  3. 2.385 km WSW of Ferndale, California · 16002 days ago · 4 km deep · 59 km away
  4. 2.549 km W of Ferndale, California · 16002 days ago · 21 km deep · 93 km away
  5. 2.252 km W of Ferndale, California · 15997 days ago · 3 km deep · 91 km away
  6. 2.361 km W of Ferndale, California · 15994 days ago · 3 km deep · 81 km away
  7. 2.084 km W of Ferndale, California · 15985 days ago · 9 km deep · 59 km away
  8. 2.8131 km W of Ferndale, California · 15979 days ago · 5 km deep · 18 km away
  9. 2.756 km WSW of Ferndale, California · 15976 days ago · 19 km deep · 92 km away
  10. 2.545 km W of Ferndale, California · 15962 days ago · 17 km deep · 97 km away
  11. 3.579 km WSW of Ferndale, California · 15947 days ago · 2 km deep · 66 km away

Before

  1. 3.191 km W of Ferndale, California · 16006 days ago · 63 km deep · 52 km away
  2. 2.8184 km W of Ferndale, California · 16012 days ago · 5 km deep · 45 km away
  3. 3.2160 km W of Ferndale, California · 16012 days ago · 20 km deep · 18 km away
  4. 3.8229 km W of Ferndale, California · 16016 days ago · 5 km deep · 90 km away
  5. 2.9166 km W of Ferndale, California · 16027 days ago · 5 km deep · 25 km away
  6. 2.7101 km W of Ferndale, California · 16032 days ago · 21 km deep · 42 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1082879. Read Sat, Oct 3, 2026, 2:15 PM UTC.