California earthquakes

M2.7 earthquake 8 km NW of Williams, California

A magnitude 2.7 earthquake struck 8 km NW of Williams, California on Thu, Dec 2, 1982, 9:09 AM PST (17:09 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M2.9 5 km WNW of Williams, California. This one was a foreshock.

Williams 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
2.7 (md), micro
Local time
UTC
1982-12-02 17:09:55 UTC
Depth
14.9 km (9.2 mi), shallow
Epicenter
39.200° N, 122.226° 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 0.7 km horizontally, 1.3 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
96°
Stations used
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 156 in the 60 days after this one and 43 in the 30 days before it.

After

  1. 2.95 km WNW of Williams, California · 16000 days ago · 11 km deep · 3 km away
  2. 2.030 km E of Covelo, California · 16000 days ago · 7 km deep · 84 km away
  3. 2.66 km WSW of Cobb, California · 16000 days ago · 1 km deep · 66 km away
  4. 2.131 km E of Covelo, California · 16000 days ago · 10 km deep · 82 km away
  5. 2.99 km WNW of Williams, California · 16000 days ago · 16 km deep · 1 km away
  6. 3.05 km W of Williams, California · 16000 days ago · 12 km deep · 5 km away
  7. 2.64 km WNW of Williams, California · 16000 days ago · 16 km deep · 4 km away
  8. 2.37 km W of Cobb, California · 15999 days ago · 2 km deep · 67 km away
  9. 2.16 km WNW of Williams, California · 15998 days ago · 21 km deep · 2 km away
  10. 2.07 km W of Cobb, California · 15998 days ago · 3 km deep · 66 km away
  11. 3.56 km WNW of Williams, California · 15998 days ago · 15 km deep · 2 km away
  12. 2.08 km NNE of Princeton, California · 15998 days ago · 10 km deep · 37 km away
  13. 2.39 km WSW of Cobb, California · 15997 days ago · 2 km deep · 69 km away
  14. 2.18 km WNW of Williams, California · 15997 days ago · 21 km deep · 3 km away
  15. 3.37 km NW of Williams, California · 15997 days ago · 16 km deep · 1 km away
  16. 3.08 km NW of Williams, California · 15997 days ago · 14 km deep · 0 km away
  17. 1.86 km W of Cobb, California · 15995 days ago · 3 km deep · 65 km away
  18. 2.228 km ENE of Covelo, California · 15995 days ago · 1 km deep · 98 km away
  19. 1.95 km SW of Cobb, California · 15994 days ago · 0 km deep · 66 km away
  20. 1.85 km SW of Cobb, California · 15994 days ago · -1 km deep · 66 km away
  21. 1.67 km SSW of Cobb, California · 15994 days ago · -1 km deep · 67 km away
  22. 2.06 km W of Cobb, California · 15994 days ago · 0 km deep · 65 km away
  23. 1.76 km SSE of Clear Lake Riviera, California · 15994 days ago · 5 km deep · 52 km away
  24. 2.86 km WSW of Lower Lake, California · 15994 days ago · 3 km deep · 52 km away
  25. 1.66 km WSW of Cobb, California · 15993 days ago · 3 km deep · 66 km away
  26. 2.26 km W of Cobb, California · 15992 days ago · 1 km deep · 65 km away
  27. 1.98 km NW of Newcastle, California · 15992 days ago · 9 km deep · 94 km away
  28. 1.818 km NNE of Lucerne, California · 15991 days ago · 12 km deep · 40 km away
  29. 1.55 km NNE of Cobb, California · 15991 days ago · 4 km deep · 55 km away
  30. 1.6Northern California · 15991 days ago · 0 km deep · 65 km away
  31. 1.69 km WSW of Cobb, California · 15990 days ago · 2 km deep · 68 km away
  32. 1.96 km SW of Cobb, California · 15989 days ago · 0 km deep · 66 km away
  33. 1.54 km ESE of Calpella, California · 15985 days ago · 0 km deep · 80 km away
  34. 2.5near the coast of Northern California · 15985 days ago · 5 km deep · 86 km away
  35. 1.9Northern California · 15984 days ago · -1 km deep · 66 km away
  36. 2.14 km W of Cobb, California · 15984 days ago · 3 km deep · 64 km away
  37. 2.36 km W of Cobb, California · 15984 days ago · 1 km deep · 66 km away
  38. 2.36 km W of Cobb, California · 15983 days ago · 2 km deep · 65 km away
  39. 1.72 km SW of Clearlake, California · 15982 days ago · 1 km deep · 46 km away
  40. 1.74 km NE of Clearlake, California · 15982 days ago · 1 km deep · 39 km away
  41. 1.96 km WSW of Cobb, California · 15982 days ago · 0 km deep · 66 km away
  42. 2.92 km SE of Clearlake, California · 15982 days ago · 2 km deep · 44 km away
  43. 1.61 km SE of Clearlake, California · 15982 days ago · 3 km deep · 44 km away
  44. 1.92 km SE of Clearlake, California · 15981 days ago · 2 km deep · 43 km away
  45. 1.61 km SSE of Clearlake, California · 15981 days ago · 2 km deep · 44 km away
  46. 2.41 km SSE of Clearlake, California · 15981 days ago · 3 km deep · 44 km away
  47. 2.31 km SSE of Clearlake, California · 15981 days ago · 3 km deep · 44 km away
  48. 1.91 km SE of Clearlake, California · 15981 days ago · 3 km deep · 44 km away
  49. 2.21 km SSE of Clearlake, California · 15981 days ago · 3 km deep · 44 km away
  50. 2.59 km WSW of Cobb, California · 15981 days ago · 2 km deep · 68 km away
  51. 1.55 km SW of Cobb, California · 15981 days ago · 0 km deep · 66 km away
  52. 1.67 km W of Cobb, California · 15981 days ago · 3 km deep · 66 km away
  53. 1.815 km NNE of Princeton, California · 15981 days ago · 12 km deep · 44 km away
  54. 1.77 km ENE of Lincoln, California · 15980 days ago · 10 km deep · 93 km away
  55. 1.917 km WNW of Elk Creek, California · 15979 days ago · 10 km deep · 66 km away
  56. 1.66 km W of Cobb, California · 15979 days ago · 3 km deep · 65 km away
  57. 1.66 km W of Cobb, California · 15979 days ago · 3 km deep · 65 km away
  58. 1.53 km SSE of Rocklin, California · 15979 days ago · 11 km deep · 100 km away
  59. 2.712 km ESE of Covelo, California · 15979 days ago · 7 km deep · 99 km away
  60. 1.722 km ENE of Potter Valley, California · 15978 days ago · 14 km deep · 61 km away

The first 60 of 156.

Before

  1. 1.78 km WNW of Williams, California · 16000 days ago · 12 km deep · 3 km away
  2. 2.37 km WNW of Williams, California · 16000 days ago · 15 km deep · 1 km away
  3. 3.1Northern California · 16000 days ago · 14 km deep · 2 km away
  4. 1.714 km WSW of Williams, California · 16000 days ago · 9 km deep · 12 km away
  5. 2.011 km W of Williams, California · 16000 days ago · 3 km deep · 9 km away
  6. 3.0Northern California · 16000 days ago · 14 km deep · 3 km away
  7. 2.17 km SSW of Maxwell, California · 16000 days ago · 9 km deep · 2 km away
  8. 2.5Northern California · 16000 days ago · 6 km deep · 85 km away
  9. 1.74 km S of Cobb, California · 16002 days ago · 2 km deep · 64 km away
  10. 1.712 km NNE of Angwin, California · 16002 days ago · 5 km deep · 59 km away
  11. 1.89 km WSW of Cobb, California · 16002 days ago · 2 km deep · 68 km away
  12. 2.96 km W of Cobb, California · 16002 days ago · 3 km deep · 65 km away
  13. 1.87 km WSW of Cobb, California · 16003 days ago · 2 km deep · 67 km away
  14. 1.77 km W of Cobb, California · 16004 days ago · 2 km deep · 66 km away
  15. 2.07 km WSW of Cobb, California · 16005 days ago · 3 km deep · 67 km away
  16. 1.78 km WSW of Cobb, California · 16007 days ago · 1 km deep · 68 km away
  17. 1.77 km W of Cobb, California · 16007 days ago · 0 km deep · 66 km away
  18. 2.25 km ESE of Santa Rosa, California · 16008 days ago · 7 km deep · 95 km away
  19. 1.66 km SW of Hopland, California · 16008 days ago · 4 km deep · 87 km away
  20. 1.66 km W of Cobb, California · 16008 days ago · 3 km deep · 65 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1082562. Read Tue, Sep 22, 2026, 9:19 PM UTC.