California earthquakes

M2.1 earthquake 6 km W of Cobb, California

A magnitude 2.1 earthquake struck 6 km W of Cobb, California on Sat, Aug 10, 1985, 12:34 PM PDT (19:34 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M2.1 9 km NNW of Kenwood, 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
2.1 (md), micro
Local time
UTC
1985-08-10 19:34:39 UTC
Depth
0.4 km (0.2 mi), shallow
Epicenter
38.826° N, 122.793° 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 0.2 km horizontally, 1.5 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
90°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 182 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.69 km WSW of Cobb, California · 15004 days ago · 1 km deep · 4 km away
  2. 1.66 km NNE of Hopland, California · 15003 days ago · 0 km deep · 34 km away
  3. 2.19 km NNW of Kenwood, California · 15002 days ago · 6 km deep · 41 km away
  4. 1.67 km WSW of Cobb, California · 15002 days ago · 0 km deep · 2 km away
  5. 2.113 km NNW of Moskowite Corner, California · 15001 days ago · 0 km deep · 55 km away
  6. 1.86 km WSW of Cobb, California · 15001 days ago · 0 km deep · 2 km away
  7. 1.86 km WSW of Cobb, California · 15001 days ago · 1 km deep · 2 km away
  8. 2.20 km S of Brooktrails, California · 15001 days ago · -1 km deep · 85 km away
  9. 1.58 km W of Cobb, California · 15000 days ago · 1 km deep · 2 km away
  10. 2.013 km NW of Moskowite Corner, California · 15000 days ago · 0 km deep · 54 km away
  11. 2.513 km NW of Moskowite Corner, California · 15000 days ago · 0 km deep · 54 km away
  12. 2.015 km NNW of Moskowite Corner, California · 15000 days ago · 15 km deep · 55 km away
  13. 1.614 km NNW of Moskowite Corner, California · 15000 days ago · 3 km deep · 55 km away
  14. 1.58 km NNW of Moskowite Corner, California · 14999 days ago · 6 km deep · 60 km away
  15. 1.913 km NNW of Moskowite Corner, California · 14999 days ago · 2 km deep · 56 km away
  16. 2.25 km SW of Cobb, California · 14999 days ago · 0 km deep · 5 km away
  17. 2.07 km W of Cobb, California · 14999 days ago · 3 km deep · 2 km away
  18. 2.520 km WSW of Williams, California · 14999 days ago · 2 km deep · 48 km away
  19. 2.220 km WSW of Williams, California · 14999 days ago · 0 km deep · 47 km away
  20. 2.021 km WSW of Williams, California · 14999 days ago · 2 km deep · 47 km away
  21. 1.94 km W of Cobb, California · 14998 days ago · 1 km deep · 2 km away
  22. 1.96 km SW of Cobb, California · 14998 days ago · 0 km deep · 4 km away
  23. 1.84 km W of Cobb, California · 14998 days ago · 0 km deep · 1 km away
  24. 1.96 km W of Cobb, California · 14997 days ago · 2 km deep · 2 km away
  25. 2.26 km W of Cobb, California · 14997 days ago · 0 km deep · 2 km away
  26. 2.420 km WSW of Williams, California · 14996 days ago · 2 km deep · 48 km away
  27. 2.620 km WSW of Williams, California · 14996 days ago · 2 km deep · 48 km away
  28. 1.89 km ESE of Willits, California · 14995 days ago · 8 km deep · 74 km away
  29. 1.922 km WSW of Williams, California · 14995 days ago · 2 km deep · 46 km away
  30. 2.33 km SW of Cobb, California · 14995 days ago · 1 km deep · 5 km away
  31. 1.78 km WSW of Cobb, California · 14995 days ago · 3 km deep · 3 km away
  32. 1.95 km SW of Cobb, California · 14995 days ago · 0 km deep · 5 km away
  33. 1.614 km ENE of Clearlake Oaks, California · 14995 days ago · 10 km deep · 36 km away
  34. 1.56 km W of Cobb, California · 14995 days ago · 3 km deep · 1 km away
  35. 2.55 km SSW of Cobb, California · 14994 days ago · 1 km deep · 6 km away
  36. 1.68 km WSW of Cobb, California · 14994 days ago · 4 km deep · 4 km away
  37. 3.214 km NW of Moskowite Corner, California · 14994 days ago · 4 km deep · 54 km away
  38. 1.913 km NNW of Moskowite Corner, California · 14994 days ago · 1 km deep · 55 km away
  39. 1.913 km NW of Moskowite Corner, California · 14994 days ago · 0 km deep · 54 km away
  40. 1.65 km SW of Cobb, California · 14992 days ago · 0 km deep · 5 km away
  41. 1.56 km W of Cobb, California · 14992 days ago · 3 km deep · 0 km away
  42. 2.913 km NW of Moskowite Corner, California · 14992 days ago · 4 km deep · 54 km away
  43. 2.713 km NW of Moskowite Corner, California · 14992 days ago · 3 km deep · 54 km away
  44. 1.710 km SSE of Moskowite Corner, California · 14992 days ago · 5 km deep · 78 km away
  45. 2.13 km NNW of Larkfield-Wikiup, California · 14992 days ago · 4 km deep · 32 km away
  46. 1.78 km W of Cobb, California · 14992 days ago · 0 km deep · 3 km away
  47. 2.313 km NNW of Moskowite Corner, California · 14992 days ago · 0 km deep · 56 km away
  48. 2.413 km NW of Moskowite Corner, California · 14992 days ago · 0 km deep · 55 km away
  49. 2.114 km NNW of Moskowite Corner, California · 14992 days ago · 2 km deep · 54 km away
  50. 1.56 km W of Cobb, California · 14991 days ago · 1 km deep · 1 km away
  51. 1.98 km WSW of Cobb, California · 14991 days ago · 0 km deep · 4 km away
  52. 1.56 km W of Cobb, California · 14991 days ago · 3 km deep · 1 km away
  53. 2.36 km SW of Cobb, California · 14991 days ago · 0 km deep · 5 km away
  54. 1.66 km SW of Cobb, California · 14991 days ago · 0 km deep · 5 km away
  55. 2.713 km NNW of Moskowite Corner, California · 14991 days ago · 2 km deep · 54 km away
  56. 1.96 km WSW of Cobb, California · 14991 days ago · 3 km deep · 2 km away
  57. 1.68 km NW of Moskowite Corner, California · 14991 days ago · 2 km deep · 59 km away
  58. 1.77 km WNW of Cobb, California · 14991 days ago · -1 km deep · 2 km away
  59. 1.64 km N of Cobb, California · 14991 days ago · 2 km deep · 7 km away
  60. 2.54 km WSW of Cobb, California · 14991 days ago · 2 km deep · 4 km away

The first 60 of 182.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc52793. Read Tue, Sep 22, 2026, 9:18 PM UTC.