California earthquakes

M2.5 earthquake 138 km W of Ferndale, California

A magnitude 2.5 earthquake struck 138 km W of Ferndale, California on Sat, Sep 25, 1982, 9:10 AM PDT (16:10 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.3 68 km WSW 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), micro
Local time
UTC
1982-09-25 16:10:00 UTC
Depth
4.7 km (2.9 mi), shallow
Epicenter
40.554° N, 125.898° 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 8.8 km horizontally, 9.5 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
328°, poorly surrounded by stations
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 23 in the 30 days before it.

After

  1. 2.4123 km W of Ferndale, California · 16066 days ago · 5 km deep · 19 km away
  2. 2.165 km WSW of Ferndale, California · 16059 days ago · 13 km deep · 78 km away
  3. 2.455 km WSW of Ferndale, California · 16052 days ago · 5 km deep · 93 km away
  4. 3.368 km WSW of Ferndale, California · 16052 days ago · 1 km deep · 75 km away
  5. 2.8127 km W of Ferndale, California · 16049 days ago · 5 km deep · 20 km away
  6. 2.286 km WSW of Ferndale, California · 16045 days ago · 8 km deep · 61 km away
  7. 1.855 km W of Ferndale, California · 16044 days ago · 7 km deep · 83 km away
  8. 2.471 km WNW of Samoa, California · 16043 days ago · 5 km deep · 88 km away
  9. 2.2117 km W of Ferndale, California · 16041 days ago · 5 km deep · 27 km away
  10. 2.141 km WSW of Ferndale, California · 16029 days ago · 22 km deep · 98 km away
  11. 2.7101 km W of Ferndale, California · 16021 days ago · 21 km deep · 39 km away
  12. 2.9166 km W of Ferndale, California · 16017 days ago · 5 km deep · 29 km away

Before

  1. 2.7167 km W of Ferndale, California · 16071 days ago · 5 km deep · 30 km away
  2. 2.179 km W of Ferndale, California · 16071 days ago · 7 km deep · 59 km away
  3. 2.5137 km W of Ferndale, California · 16071 days ago · 5 km deep · 13 km away
  4. 2.551 km W of Ferndale, California · 16072 days ago · 31 km deep · 86 km away
  5. 2.0off the coast of Northern California · 16074 days ago · 6 km deep · 75 km away
  6. 2.299 km W of Ferndale, California · 16074 days ago · 8 km deep · 39 km away
  7. 2.3114 km W of Ferndale, California · 16074 days ago · 11 km deep · 30 km away
  8. 2.6121 km W of Ferndale, California · 16075 days ago · 19 km deep · 19 km away
  9. 2.847 km WSW of Ferndale, California · 16075 days ago · 21 km deep · 99 km away
  10. 2.046 km W of Ferndale, California · 16076 days ago · 19 km deep · 92 km away
  11. 2.7134 km W of Ferndale, California · 16076 days ago · 5 km deep · 12 km away
  12. 3.196 km W of Ferndale, California · 16077 days ago · 22 km deep · 46 km away
  13. 2.556 km WSW of Ferndale, California · 16084 days ago · 5 km deep · 84 km away
  14. 3.362 km WNW of Indianola, California · 16084 days ago · 7 km deep · 85 km away
  15. 2.564 km WSW of Ferndale, California · 16086 days ago · 0 km deep · 78 km away
  16. 2.3124 km W of Trinidad, California · 16087 days ago · 5 km deep · 64 km away
  17. 3.346 km WSW of Ferndale, California · 16090 days ago · 18 km deep · 93 km away
  18. 3.1102 km W of Ferndale, California · 16090 days ago · 5 km deep · 38 km away
  19. 3.065 km WSW of Ferndale, California · 16090 days ago · 25 km deep · 75 km away
  20. 2.254 km W of Ferndale, California · 16091 days ago · 34 km deep · 84 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1079549. Read Tue, Sep 22, 2026, 7:51 PM UTC.