California earthquakes

M3.1 earthquake 6 km WSW of Cobb, California

A magnitude 3.1 earthquake struck 6 km WSW of Cobb, California on Sun, Dec 26, 1982, 1:59 AM PST (09:59 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.2 9 km ESE of Boonville, California. This one was a foreshock.

Cobb 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
3.1 (ml), minor
Local time
UTC
1982-12-26 09:59:46 UTC
Depth
3.1 km (1.9 mi), shallow
Epicenter
38.809° N, 122.801° 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 0.1 km horizontally, 0.3 km in depth
Depth from
From location
Station coverage gap
36°
Stations used
47

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 136 in the 60 days after this one and 39 in the 30 days before it.

After

  1. 1.77 km W of Cobb, California · 15976 days ago · 3 km deep · 1 km away
  2. 1.630 km NNE of Potter Valley, California · 15976 days ago · 14 km deep · 83 km away
  3. 1.511 km ESE of Hidden Valley Lake, California · 15976 days ago · 2 km deep · 32 km away
  4. 2.06 km W of Cobb, California · 15976 days ago · 2 km deep · 0 km away
  5. 1.57 km WSW of Cobb, California · 15975 days ago · -1 km deep · 2 km away
  6. 1.61 km SE of Clearlake, California · 15975 days ago · 2 km deep · 22 km away
  7. 1.97 km W of Cobb, California · 15975 days ago · 0 km deep · 2 km away
  8. 2.24 km NNW of Benicia, California · 15973 days ago · 7 km deep · 97 km away
  9. 2.26 km E of Lakeport, California · 15973 days ago · 45 km deep · 27 km away
  10. 1.85 km NE of Willits, California · 15973 days ago · 3 km deep · 83 km away
  11. 1.81 km E of Deer Park, California · 15972 days ago · 11 km deep · 43 km away
  12. 2.24 km NE of Talmage, California · 15972 days ago · 8 km deep · 49 km away
  13. 2.38 km W of Cobb, California · 15971 days ago · 1 km deep · 1 km away
  14. 1.510 km N of Brooktrails, California · 15971 days ago · 5 km deep · 96 km away
  15. 1.9Northern California · 15971 days ago · 0 km deep · 2 km away
  16. 1.65 km W of Cobb, California · 15970 days ago · 1 km deep · 2 km away
  17. 1.75 km SW of Cobb, California · 15970 days ago · 0 km deep · 3 km away
  18. 2.74 km SSW of Willits, California · 15969 days ago · 4 km deep · 80 km away
  19. 1.612 km NNW of Moskowite Corner, California · 15969 days ago · 2 km deep · 56 km away
  20. 1.63 km SE of Calpella, California · 15969 days ago · 2 km deep · 55 km away
  21. 1.77 km W of Cobb, California · 15967 days ago · 0 km deep · 1 km away
  22. 1.67 km E of Willits, California · 15967 days ago · 7 km deep · 78 km away
  23. 2.25 km ENE of Willits, California · 15966 days ago · 3 km deep · 82 km away
  24. 1.89 km N of Moskowite Corner, California · 15966 days ago · 10 km deep · 60 km away
  25. 1.713 km NNW of Moskowite Corner, California · 15966 days ago · 3 km deep · 55 km away
  26. 1.65 km WNW of Redwood Valley, California · 15966 days ago · 7 km deep · 66 km away
  27. 1.77 km NW of Moskowite Corner, California · 15966 days ago · 2 km deep · 59 km away
  28. 2.53 km NNE of Dixon, California · 15966 days ago · 30 km deep · 94 km away
  29. 1.725 km SE of Covelo, California · 15965 days ago · 14 km deep · 92 km away
  30. 1.78 km E of Willits, California · 15965 days ago · 9 km deep · 77 km away
  31. 1.94 km S of Cobb, California · 15964 days ago · 1 km deep · 7 km away
  32. 1.96 km ESE of Willits, California · 15964 days ago · 8 km deep · 77 km away
  33. 1.95 km W of Hopland, California · 15964 days ago · 6 km deep · 38 km away
  34. 1.65 km WSW of Cobb, California · 15964 days ago · -1 km deep · 2 km away
  35. 2.27 km WSW of Moskowite Corner, California · 15963 days ago · 13 km deep · 63 km away
  36. 2.05 km NE of Hopland, California · 15962 days ago · 5 km deep · 33 km away
  37. 2.14 km NNW of Redwood Valley, California · 15962 days ago · 7 km deep · 66 km away
  38. 1.87 km W of Cobb, California · 15962 days ago · 3 km deep · 1 km away
  39. 1.61 km SE of Clearlake, California · 15962 days ago · 3 km deep · 22 km away
  40. 2.05 km NE of Hopland, California · 15962 days ago · 5 km deep · 33 km away
  41. 1.84 km ENE of Willits, California · 15962 days ago · 7 km deep · 81 km away
  42. 1.812 km ESE of Hidden Valley Lake, California · 15962 days ago · 6 km deep · 32 km away
  43. 1.79 km SE of Hidden Valley Lake, California · 15962 days ago · 0 km deep · 28 km away
  44. 1.710 km W of Cobb, California · 15961 days ago · 4 km deep · 4 km away
  45. 1.79 km NW of Redwood Valley, California · 15960 days ago · -1 km deep · 71 km away
  46. 2.214 km NNE of Angwin, California · 15960 days ago · 9 km deep · 41 km away
  47. 2.921 km NE of Potter Valley, California · 15959 days ago · 6 km deep · 72 km away
  48. 1.821 km NE of Potter Valley, California · 15959 days ago · 7 km deep · 73 km away
  49. 1.611 km SE of Hidden Valley Lake, California · 15958 days ago · 3 km deep · 31 km away
  50. 1.68 km NNE of Brooktrails, California · 15957 days ago · 5 km deep · 92 km away
  51. 2.36 km W of Cobb, California · 15957 days ago · 3 km deep · 1 km away
  52. 1.88 km W of Cobb, California · 15956 days ago · 4 km deep · 2 km away
  53. 1.74 km W of Cobb, California · 15956 days ago · 2 km deep · 2 km away
  54. 2.021 km NNE of Potter Valley, California · 15956 days ago · 8 km deep · 77 km away
  55. 2.27 km W of Cobb, California · 15956 days ago · 2 km deep · 1 km away
  56. 1.94 km S of Cobb, California · 15956 days ago · 2 km deep · 8 km away
  57. 2.14 km WSW of Cobb, California · 15955 days ago · 2 km deep · 3 km away
  58. 1.66 km W of Cobb, California · 15955 days ago · 2 km deep · 1 km away
  59. 1.55 km WSW of Cobb, California · 15953 days ago · 0 km deep · 2 km away
  60. 2.15 km S of Cobb, California · 15953 days ago · 0 km deep · 7 km away

The first 60 of 136.

Before

  1. 1.83 km NE of Talmage, California · 15976 days ago · 7 km deep · 49 km away
  2. 1.79 km WSW of Cobb, California · 15976 days ago · 1 km deep · 2 km away
  3. 1.722 km ENE of Potter Valley, California · 15978 days ago · 14 km deep · 68 km away
  4. 1.66 km W of Cobb, California · 15979 days ago · 3 km deep · 1 km away
  5. 1.66 km W of Cobb, California · 15979 days ago · 3 km deep · 1 km away
  6. 1.917 km WNW of Elk Creek, California · 15979 days ago · 10 km deep · 92 km away
  7. 1.67 km W of Cobb, California · 15981 days ago · 3 km deep · 1 km away
  8. 1.55 km SW of Cobb, California · 15981 days ago · 0 km deep · 3 km away
  9. 2.59 km WSW of Cobb, California · 15981 days ago · 2 km deep · 2 km away
  10. 2.21 km SSE of Clearlake, California · 15981 days ago · 3 km deep · 22 km away
  11. 1.91 km SE of Clearlake, California · 15981 days ago · 3 km deep · 22 km away
  12. 2.31 km SSE of Clearlake, California · 15981 days ago · 3 km deep · 22 km away
  13. 2.41 km SSE of Clearlake, California · 15981 days ago · 3 km deep · 22 km away
  14. 1.61 km SSE of Clearlake, California · 15981 days ago · 2 km deep · 22 km away
  15. 1.92 km SE of Clearlake, California · 15981 days ago · 2 km deep · 23 km away
  16. 1.61 km SE of Clearlake, California · 15981 days ago · 3 km deep · 22 km away
  17. 2.92 km SE of Clearlake, California · 15981 days ago · 2 km deep · 22 km away
  18. 1.96 km WSW of Cobb, California · 15981 days ago · 0 km deep · 0 km away
  19. 1.74 km NE of Clearlake, California · 15982 days ago · 1 km deep · 27 km away
  20. 1.72 km SW of Clearlake, California · 15982 days ago · 1 km deep · 20 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1083503 (also filed as usp0001rrk). Read Tue, Sep 22, 2026, 3:09 PM UTC.