California earthquakes

M2.2 earthquake 0 km S of Brooktrails, California

A magnitude 2.2 earthquake struck 0 km S of Brooktrails, California on Tue, Aug 27, 1985, 11:20 PM PDT (06:20 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M2.2 6 km W of Cobb, California. This one was a foreshock.

Brooktrails 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
2.2 (md), micro
Local time
UTC
1985-08-28 06:20:39 UTC
Depth
-0.8 km (-0.5 mi), shallow
Epicenter
39.439° N, 123.384° 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 0.3 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
65°
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: 200 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.021 km WSW of Williams, California · 14999 days ago · 2 km deep · 92 km away
  2. 1.94 km W of Cobb, California · 14998 days ago · 1 km deep · 87 km away
  3. 1.96 km SW of Cobb, California · 14998 days ago · 0 km deep · 89 km away
  4. 1.84 km W of Cobb, California · 14998 days ago · 0 km deep · 86 km away
  5. 1.96 km W of Cobb, California · 14997 days ago · 2 km deep · 86 km away
  6. 2.26 km W of Cobb, California · 14997 days ago · 0 km deep · 86 km away
  7. 2.420 km WSW of Williams, California · 14995 days ago · 2 km deep · 94 km away
  8. 2.620 km WSW of Williams, California · 14995 days ago · 2 km deep · 93 km away
  9. 1.89 km ESE of Willits, California · 14995 days ago · 8 km deep · 13 km away
  10. 1.922 km WSW of Williams, California · 14995 days ago · 2 km deep · 93 km away
  11. 2.33 km SW of Cobb, California · 14995 days ago · 1 km deep · 90 km away
  12. 1.78 km WSW of Cobb, California · 14995 days ago · 3 km deep · 86 km away
  13. 1.95 km SW of Cobb, California · 14995 days ago · 0 km deep · 90 km away
  14. 1.614 km ENE of Clearlake Oaks, California · 14995 days ago · 10 km deep · 86 km away
  15. 1.616 km ENE of Leggett, California · 14994 days ago · 2 km deep · 53 km away
  16. 1.56 km W of Cobb, California · 14994 days ago · 3 km deep · 85 km away
  17. 2.55 km SSW of Cobb, California · 14994 days ago · 1 km deep · 91 km away
  18. 1.68 km WSW of Cobb, California · 14994 days ago · 4 km deep · 88 km away
  19. 1.65 km SW of Cobb, California · 14992 days ago · 0 km deep · 90 km away
  20. 1.56 km W of Cobb, California · 14992 days ago · 3 km deep · 85 km away
  21. 2.58 km SE of Alderpoint, California · 14992 days ago · 3 km deep · 76 km away
  22. 1.78 km W of Cobb, California · 14992 days ago · 0 km deep · 85 km away
  23. 1.56 km W of Cobb, California · 14991 days ago · 1 km deep · 84 km away
  24. 1.98 km WSW of Cobb, California · 14991 days ago · 0 km deep · 86 km away
  25. 1.56 km W of Cobb, California · 14991 days ago · 3 km deep · 85 km away
  26. 2.36 km SW of Cobb, California · 14991 days ago · 0 km deep · 90 km away
  27. 1.66 km SW of Cobb, California · 14991 days ago · 0 km deep · 90 km away
  28. 1.96 km WSW of Cobb, California · 14991 days ago · 3 km deep · 87 km away
  29. 1.77 km WNW of Cobb, California · 14991 days ago · -1 km deep · 83 km away
  30. 1.64 km N of Cobb, California · 14991 days ago · 2 km deep · 86 km away
  31. 2.54 km WSW of Cobb, California · 14990 days ago · 2 km deep · 89 km away
  32. 1.69 km W of Cobb, California · 14990 days ago · 2 km deep · 83 km away
  33. 2.36 km W of Cobb, California · 14990 days ago · 3 km deep · 85 km away
  34. 2.58 km W of Cobb, California · 14990 days ago · 0 km deep · 85 km away
  35. 1.87 km W of Cobb, California · 14990 days ago · 0 km deep · 85 km away
  36. 2.16 km W of Cobb, California · 14990 days ago · 2 km deep · 86 km away
  37. 1.65 km WSW of Cobb, California · 14990 days ago · 1 km deep · 87 km away
  38. 2.74 km WSW of Cobb, California · 14990 days ago · 2 km deep · 87 km away
  39. 1.85 km SW of Cobb, California · 14990 days ago · 0 km deep · 89 km away
  40. 1.74 km SSW of Cobb, California · 14989 days ago · 2 km deep · 92 km away
  41. 1.98 km W of Cobb, California · 14988 days ago · 1 km deep · 84 km away
  42. 1.89 km W of Cobb, California · 14987 days ago · 1 km deep · 85 km away
  43. 1.78 km W of Cobb, California · 14987 days ago · 0 km deep · 85 km away
  44. 1.99 km NW of Cobb, California · 14987 days ago · 1 km deep · 80 km away
  45. 1.63 km SW of Cobb, California · 14987 days ago · 0 km deep · 90 km away
  46. 2.010 km NW of Cobb, California · 14987 days ago · 0 km deep · 79 km away
  47. 2.06 km W of Cobb, California · 14987 days ago · 1 km deep · 86 km away
  48. 1.920 km NE of Upper Lake, California · 14987 days ago · -1 km deep · 54 km away
  49. 1.58 km WSW of Cobb, California · 14986 days ago · 0 km deep · 86 km away
  50. 1.96 km W of Cobb, California · 14986 days ago · 4 km deep · 85 km away
  51. 1.98 km W of Cobb, California · 14985 days ago · 1 km deep · 84 km away
  52. 1.812 km NE of Upper Lake, California · 14985 days ago · 2 km deep · 55 km away
  53. 2.2Northern California · 14985 days ago · 2 km deep · 55 km away
  54. 1.66 km W of Cobb, California · 14984 days ago · 0 km deep · 85 km away
  55. 2.512 km NE of Upper Lake, California · 14984 days ago · 3 km deep · 55 km away
  56. 1.64 km W of Cobb, California · 14984 days ago · 0 km deep · 86 km away
  57. 1.68 km W of Cobb, California · 14984 days ago · 1 km deep · 84 km away
  58. 1.65 km W of Cobb, California · 14984 days ago · 1 km deep · 86 km away
  59. 1.812 km NE of Upper Lake, California · 14984 days ago · 2 km deep · 55 km away
  60. 1.85 km W of Cobb, California · 14983 days ago · 0 km deep · 86 km away

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc55323. Read Tue, Sep 22, 2026, 5:16 PM UTC.