California earthquakes

M4.0 earthquake 94 km W of Ferndale, California

A magnitude 4.0 earthquake struck 94 km W of Ferndale, California on Sun, Jan 6, 1985, 1:25 AM PST (09:25 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M4.6 173 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
4.0 (ml), light
Local time
UTC
1985-01-06 09:25:41 UTC
Depth
15.0 km (9.3 mi), shallow
Epicenter
40.460° N, 125.370° 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 4.6 km horizontally, 14.9 km in depth
Depth from
From location
Station coverage gap
272°, poorly surrounded by stations
Stations used
49

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 39 in the 60 days after this one and 17 in the 30 days before it.

After

  1. 4.6173 km WSW of Ferndale, California · 15233 days ago · 5 km deep · 79 km away
  2. 2.566 km WSW of Ferndale, California · 15230 days ago · -1 km deep · 41 km away
  3. 2.960 km WSW of Ferndale, California · 15228 days ago · 0 km deep · 36 km away
  4. 2.125 km SSW of Ferndale, California · 15227 days ago · 14 km deep · 85 km away
  5. 2.436 km SSW of Ferndale, California · 15227 days ago · 20 km deep · 78 km away
  6. 2.439 km SW of Ferndale, California · 15224 days ago · 4 km deep · 69 km away
  7. 3.879 km WNW of Ferndale, California · 15224 days ago · 2 km deep · 36 km away
  8. 2.872 km WSW of Ferndale, California · 15224 days ago · 4 km deep · 26 km away
  9. 2.23 km WSW of Loleta, California · 15221 days ago · 16 km deep · 95 km away
  10. 2.936 km SSW of Ferndale, California · 15220 days ago · 7 km deep · 82 km away
  11. 1.74 km WNW of Fields Landing, California · 15220 days ago · 7 km deep · 99 km away
  12. 2.136 km WSW of Ferndale, California · 15220 days ago · 22 km deep · 59 km away
  13. 2.743 km SW of Ferndale, California · 15219 days ago · 20 km deep · 63 km away
  14. 3.1114 km W of Big Lagoon, California · 15214 days ago · 4 km deep · 100 km away
  15. 2.328 km SW of Ferndale, California · 15214 days ago · 28 km deep · 72 km away
  16. 2.222 km WNW of Ferndale, California · 15213 days ago · 14 km deep · 77 km away
  17. 3.052 km WSW of Ferndale, California · 15211 days ago · 10 km deep · 51 km away
  18. 2.465 km WSW of Ferndale, California · 15211 days ago · 14 km deep · 43 km away
  19. 1.68 km WSW of Scotia, California · 15211 days ago · 5 km deep · 100 km away
  20. 2.647 km W of Ferndale, California · 15209 days ago · 0 km deep · 47 km away
  21. 3.543 km WSW of Ferndale, California · 15209 days ago · 15 km deep · 58 km away
  22. 3.438 km SW of Ferndale, California · 15206 days ago · 19 km deep · 72 km away
  23. 3.3112 km W of Ferndale, California · 15206 days ago · 12 km deep · 18 km away
  24. 3.293 km WSW of Ferndale, California · 15205 days ago · 21 km deep · 10 km away
  25. 2.659 km WSW of Ferndale, California · 15203 days ago · 10 km deep · 42 km away
  26. 2.945 km WSW of Ferndale, California · 15203 days ago · 22 km deep · 57 km away
  27. 2.728 km SW of Ferndale, California · 15202 days ago · 21 km deep · 74 km away
  28. 1.619 km WSW of Ferndale, California · 15194 days ago · -1 km deep · 75 km away
  29. 3.0109 km W of Ferndale, California · 15192 days ago · 5 km deep · 26 km away
  30. 2.07 km WSW of Samoa, California · 15189 days ago · 4 km deep · 100 km away
  31. 2.951 km SW of Ferndale, California · 15188 days ago · 13 km deep · 54 km away
  32. 3.529 km SW of Scotia, California · 15186 days ago · 9 km deep · 88 km away
  33. 2.514 km SW of Ferndale, California · 15186 days ago · 26 km deep · 82 km away
  34. 2.853 km WNW of Ferndale, California · 15186 days ago · 41 km deep · 51 km away
  35. 2.228 km SW of Scotia, California · 15185 days ago · 10 km deep · 88 km away
  36. 1.726 km SW of Scotia, California · 15185 days ago · 3 km deep · 90 km away
  37. 2.126 km SW of Scotia, California · 15185 days ago · 5 km deep · 90 km away
  38. 2.532 km SW of Ferndale, California · 15185 days ago · 11 km deep · 70 km away
  39. 1.529 km SW of Scotia, California · 15184 days ago · 2 km deep · 89 km away

Before

  1. 1.89 km S of Ferndale, California · 15238 days ago · 18 km deep · 92 km away
  2. 3.644 km W of Ferndale, California · 15240 days ago · 4 km deep · 50 km away
  3. 1.933 km SSW of Ferndale, California · 15240 days ago · 8 km deep · 82 km away
  4. 2.664 km WSW of Ferndale, California · 15243 days ago · 5 km deep · 32 km away
  5. 2.3105 km W of Ferndale, California · 15243 days ago · 5 km deep · 11 km away
  6. 2.753 km WNW of Samoa, California · 15244 days ago · 2 km deep · 70 km away
  7. 2.222 km WNW of Fields Landing, California · 15245 days ago · 24 km deep · 84 km away
  8. 1.87 km S of Ferndale, California · 15249 days ago · 7 km deep · 92 km away
  9. 3.58 km SSW of Ferndale, California · 15249 days ago · 8 km deep · 92 km away
  10. 2.237 km SW of Ferndale, California · 15250 days ago · 19 km deep · 71 km away
  11. 2.852 km WSW of Ferndale, California · 15251 days ago · 23 km deep · 47 km away
  12. 1.812 km SW of Scotia, California · 15253 days ago · 19 km deep · 98 km away
  13. 3.134 km WSW of Ferndale, California · 15257 days ago · 21 km deep · 61 km away
  14. 2.315 km SW of Scotia, California · 15259 days ago · 28 km deep · 97 km away
  15. 2.679 km WSW of Ferndale, California · 15259 days ago · 5 km deep · 16 km away
  16. 3.1150 km W of Ferndale, California · 15260 days ago · 5 km deep · 57 km away
  17. 2.432 km SW of Scotia, California · 15261 days ago · 21 km deep · 85 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc36420 (also filed as usp0002asp). Read Tue, Sep 22, 2026, 9:20 AM UTC.