California earthquakes

M1.6 earthquake 6 km ENE of Brooktrails, California

A magnitude 1.6 earthquake struck 6 km ENE of Brooktrails, California on Fri, Nov 15, 1985, 5:43 AM PST (13:43 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.7 8 km NNW of Alderpoint, 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
1.6 (md), micro
Local time
UTC
1985-11-15 13:43:40 UTC
Depth
6.8 km (4.2 mi), shallow
Epicenter
39.477° N, 123.321° 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, 0.5 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
70°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 106 in the 30 days before it.

After

  1. 1.66 km W of Cobb, California · 14926 days ago · 2 km deep · 86 km away
  2. 1.514 km SSE of Laytonville, California · 14926 days ago · 10 km deep · 13 km away
  3. 1.98 km W of Cobb, California · 14926 days ago · 1 km deep · 85 km away
  4. 1.84 km W of Cobb, California · 14925 days ago · 0 km deep · 87 km away
  5. 2.68 km W of Cobb, California · 14925 days ago · 1 km deep · 85 km away
  6. 1.98 km W of Lodoga, California · 14925 days ago · 4 km deep · 67 km away
  7. 1.55 km SW of Cobb, California · 14924 days ago · 0 km deep · 89 km away
  8. 2.36 km W of Cobb, California · 14924 days ago · 3 km deep · 86 km away
  9. 1.5Northern California · 14923 days ago · 1 km deep · 91 km away
  10. 1.76 km W of Cobb, California · 14923 days ago · 3 km deep · 86 km away
  11. 1.726 km WNW of Paskenta, California · 14923 days ago · -1 km deep · 67 km away
  12. 1.79 km WSW of Cobb, California · 14923 days ago · 2 km deep · 87 km away
  13. 1.65 km WSW of Cobb, California · 14922 days ago · 2 km deep · 88 km away
  14. 1.85 km WSW of Cobb, California · 14922 days ago · 1 km deep · 88 km away
  15. 1.86 km W of Cobb, California · 14922 days ago · 1 km deep · 87 km away
  16. 2.13 km ESE of Cloverdale, California · 14922 days ago · 2 km deep · 82 km away
  17. 2.212 km E of Geyserville, California · 14921 days ago · 3 km deep · 99 km away
  18. 2.29 km WSW of Cobb, California · 14920 days ago · 1 km deep · 87 km away
  19. 1.57 km WSW of Cobb, California · 14920 days ago · 2 km deep · 87 km away
  20. 1.59 km SSE of Willits, California · 14920 days ago · 7 km deep · 16 km away
  21. 1.77 km WSW of Cobb, California · 14920 days ago · 1 km deep · 87 km away
  22. 1.65 km SW of Cobb, California · 14920 days ago · 0 km deep · 90 km away
  23. 2.55 km SW of Cobb, California · 14920 days ago · 0 km deep · 90 km away
  24. 2.27 km W of Cobb, California · 14920 days ago · 0 km deep · 86 km away
  25. 3.78 km NNW of Alderpoint, California · 14920 days ago · 28 km deep · 90 km away
  26. 1.710 km NE of Phillipsville, California · 14920 days ago · 24 km deep · 94 km away
  27. 2.210 km NE of Phillipsville, California · 14920 days ago · 29 km deep · 94 km away
  28. 2.05 km SW of Cobb, California · 14919 days ago · 4 km deep · 90 km away
  29. 1.78 km WSW of Cobb, California · 14919 days ago · 3 km deep · 87 km away
  30. 2.49 km NNW of Alderpoint, California · 14919 days ago · 26 km deep · 91 km away
  31. 1.810 km NE of Phillipsville, California · 14919 days ago · 26 km deep · 94 km away
  32. 2.15 km WSW of Cobb, California · 14918 days ago · 1 km deep · 88 km away
  33. 1.87 km W of Cobb, California · 14918 days ago · 1 km deep · 84 km away
  34. 2.026 km NE of Potter Valley, California · 14918 days ago · 7 km deep · 38 km away
  35. 1.98 km W of Cobb, California · 14917 days ago · 0 km deep · 85 km away
  36. 1.712 km WSW of Willits, California · 14916 days ago · 0 km deep · 20 km away
  37. 1.75 km W of Cobb, California · 14916 days ago · 1 km deep · 85 km away
  38. 1.96 km E of Calpella, California · 14916 days ago · 3 km deep · 32 km away
  39. 2.03 km ESE of Clear Lake Riviera, California · 14916 days ago · 4 km deep · 80 km away
  40. 1.67 km WSW of Cobb, California · 14916 days ago · 0 km deep · 87 km away
  41. 1.57 km WSW of Cobb, California · 14916 days ago · -1 km deep · 87 km away
  42. 2.07 km WSW of Cobb, California · 14916 days ago · 0 km deep · 87 km away
  43. 1.96 km W of Cobb, California · 14916 days ago · 3 km deep · 86 km away
  44. 2.334 km NW of Paskenta, California · 14916 days ago · 8 km deep · 79 km away
  45. 2.68 km WSW of Cobb, California · 14916 days ago · 1 km deep · 86 km away
  46. 1.612 km NE of Clearlake, California · 14916 days ago · 6 km deep · 86 km away
  47. 1.55 km W of Cobb, California · 14915 days ago · 0 km deep · 86 km away
  48. 1.87 km WSW of Cobb, California · 14915 days ago · 0 km deep · 88 km away
  49. 1.64 km SW of Cobb, California · 14915 days ago · 1 km deep · 91 km away
  50. 1.97 km W of Cobb, California · 14915 days ago · 0 km deep · 85 km away
  51. 1.77 km W of Cobb, California · 14914 days ago · 4 km deep · 86 km away
  52. 1.99 km WSW of Cobb, California · 14914 days ago · 2 km deep · 86 km away
  53. 2.321 km ENE of Clearlake, California · 14914 days ago · 6 km deep · 92 km away
  54. 1.58 km W of Cobb, California · 14914 days ago · 1 km deep · 85 km away
  55. 1.65 km WSW of Cobb, California · 14914 days ago · 0 km deep · 89 km away
  56. 1.65 km WSW of Cobb, California · 14913 days ago · 1 km deep · 87 km away
  57. 2.620 km ENE of Clearlake, California · 14913 days ago · 0 km deep · 94 km away
  58. 2.45 km WSW of Cobb, California · 14913 days ago · 1 km deep · 88 km away
  59. 2.45 km SW of Cobb, California · 14913 days ago · 1 km deep · 91 km away
  60. 2.73 km SW of Cobb, California · 14913 days ago · 1 km deep · 90 km away

The first 60 of at least 200.

Before

  1. 1.97 km W of Cobb, California · 14928 days ago · 1 km deep · 85 km away
  2. 2.17 km W of Cobb, California · 14928 days ago · 1 km deep · 85 km away
  3. 1.66 km W of Cobb, California · 14929 days ago · 2 km deep · 86 km away
  4. 2.15 km SW of Cobb, California · 14929 days ago · 1 km deep · 91 km away
  5. 1.89 km E of Hopland, California · 14929 days ago · 2 km deep · 63 km away
  6. 1.78 km N of Laytonville, California · 14929 days ago · 3 km deep · 35 km away
  7. 1.513 km N of Brooktrails, California · 14930 days ago · 9 km deep · 12 km away
  8. 1.630 km ENE of Covelo, California · 14930 days ago · 16 km deep · 60 km away
  9. 2.03 km WNW of Cobb, California · 14930 days ago · 0 km deep · 86 km away
  10. 1.86 km WSW of Cobb, California · 14930 days ago · 3 km deep · 87 km away
  11. 1.63 km WNW of Cobb, California · 14930 days ago · 0 km deep · 86 km away
  12. 4.15 km NW of Cobb, California · 14930 days ago · -1 km deep · 84 km away
  13. 1.75 km SW of Cobb, California · 14930 days ago · 0 km deep · 90 km away
  14. 1.96 km SW of Cobb, California · 14931 days ago · 1 km deep · 90 km away
  15. 2.613 km N of Brooktrails, California · 14931 days ago · 9 km deep · 12 km away
  16. 2.88 km E of Leggett, California · 14931 days ago · 0 km deep · 49 km away
  17. 1.75 km WSW of Cobb, California · 14931 days ago · 0 km deep · 89 km away
  18. 1.77 km NE of Phillipsville, California · 14931 days ago · 8 km deep · 94 km away
  19. 1.828 km W of Paskenta, California · 14932 days ago · 15 km deep · 63 km away
  20. 1.69 km W of Cobb, California · 14932 days ago · 0 km deep · 85 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc60377. Read Tue, Sep 29, 2026, 1:28 AM UTC.