California earthquakes

M2.3 earthquake 12 km N of Brooktrails, California

A magnitude 2.3 earthquake struck 12 km N of Brooktrails, California on Mon, Oct 8, 1990, 2:38 PM PDT (21:38 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M3.4 7 km WSW 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
2.3 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-10-08 21:38:27 UTC
Depth
9.5 km (5.9 mi), shallow
Epicenter
39.554° N, 123.370° 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, 0.7 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
65°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 155 in the 60 days after this one and 75 in the 30 days before it.

After

  1. 1.85 km W of Cobb, California · 13144 days ago · 0 km deep · 96 km away
  2. 2.616 km N of Ruth, California · 13144 days ago · 29 km deep · 97 km away
  3. 1.512 km N of Brooktrails, California · 13144 days ago · 8 km deep · 0 km away
  4. 1.97 km W of Cobb, California · 13143 days ago · 3 km deep · 95 km away
  5. 3.47 km WSW of Cobb, California · 13143 days ago · 3 km deep · 97 km away
  6. 1.58 km W of Cobb, California · 13143 days ago · 1 km deep · 94 km away
  7. 1.68 km W of Cobb, California · 13143 days ago · 0 km deep · 93 km away
  8. 2.48 km W of Cobb, California · 13143 days ago · -1 km deep · 94 km away
  9. 1.87 km WSW of Cobb, California · 13143 days ago · 3 km deep · 97 km away
  10. 2.44 km W of Cobb, California · 13143 days ago · 2 km deep · 96 km away
  11. 1.94 km W of Cobb, California · 13143 days ago · 2 km deep · 97 km away
  12. 1.76 km ENE of Cloverdale, California · 13142 days ago · 2 km deep · 87 km away
  13. 2.410 km W of Cobb, California · 13142 days ago · 0 km deep · 94 km away
  14. 1.710 km W of Cobb, California · 13142 days ago · 0 km deep · 94 km away
  15. 2.23 km W of Cobb, California · 13142 days ago · 0 km deep · 97 km away
  16. 1.93 km NNE of Cloverdale, California · 13141 days ago · 3 km deep · 86 km away
  17. 1.77 km W of Cobb, California · 13141 days ago · 3 km deep · 95 km away
  18. 1.812 km NE of Cleone, California · 13139 days ago · 4 km deep · 27 km away
  19. 1.75 km WSW of Cobb, California · 13138 days ago · 0 km deep · 97 km away
  20. 1.88 km W of Cobb, California · 13138 days ago · 2 km deep · 94 km away
  21. 1.610 km W of Cobb, California · 13137 days ago · 0 km deep · 94 km away
  22. 1.68 km ENE of Brooktrails, California · 13137 days ago · 4 km deep · 10 km away
  23. 1.74 km WSW of Cobb, California · 13135 days ago · 1 km deep · 98 km away
  24. 2.87 km WSW of Cobb, California · 13135 days ago · 0 km deep · 96 km away
  25. 1.67 km WSW of Cobb, California · 13135 days ago · 0 km deep · 97 km away
  26. 2.25 km W of Cobb, California · 13134 days ago · 2 km deep · 96 km away
  27. 1.98 km W of Cobb, California · 13133 days ago · 1 km deep · 94 km away
  28. 2.119 km E of Potter Valley, California · 13133 days ago · 6 km deep · 47 km away
  29. 2.018 km WNW of Rancho Tehama Reserve, California · 13133 days ago · 17 km deep · 88 km away
  30. 1.918 km E of Potter Valley, California · 13133 days ago · 4 km deep · 47 km away
  31. 1.55 km WSW of Cobb, California · 13132 days ago · 1 km deep · 98 km away
  32. 2.14 km W of Cobb, California · 13132 days ago · 0 km deep · 96 km away
  33. 1.510 km NNW of Rancho Tehama Reserve, California · 13132 days ago · 21 km deep · 98 km away
  34. 1.822 km NNE of Upper Lake, California · 13131 days ago · 6 km deep · 50 km away
  35. 1.66 km ESE of Hopland, California · 13130 days ago · 4 km deep · 72 km away
  36. 1.710 km NW of Cobb, California · 13130 days ago · 0 km deep · 89 km away
  37. 2.54 km WSW of Cobb, California · 13129 days ago · 2 km deep · 98 km away
  38. 2.25 km WSW of Cobb, California · 13129 days ago · 0 km deep · 99 km away
  39. 2.119 km NW of Shelter Cove, California · 13128 days ago · 8 km deep · 99 km away
  40. 2.510 km N of Cloverdale, California · 13127 days ago · -1 km deep · 79 km away
  41. 1.94 km W of Cobb, California · 13125 days ago · 0 km deep · 96 km away
  42. 1.62 km NNE of Talmage, California · 13125 days ago · 5 km deep · 48 km away
  43. 1.62 km NNE of Talmage, California · 13125 days ago · 5 km deep · 48 km away
  44. 1.97 km W of Cobb, California · 13125 days ago · 4 km deep · 95 km away
  45. 2.07 km W of Cobb, California · 13124 days ago · 3 km deep · 96 km away
  46. 2.64 km WSW of Cobb, California · 13124 days ago · 1 km deep · 98 km away
  47. 2.024 km NE of Potter Valley, California · 13123 days ago · 9 km deep · 37 km away
  48. 1.76 km W of Cobb, California · 13122 days ago · 3 km deep · 95 km away
  49. 1.56 km W of Cobb, California · 13121 days ago · 0 km deep · 95 km away
  50. 1.95 km W of Laytonville, California · 13121 days ago · 2 km deep · 22 km away
  51. 2.06 km WSW of Cobb, California · 13121 days ago · 1 km deep · 97 km away
  52. 1.69 km SW of Cloverdale, California · 13120 days ago · 1 km deep · 94 km away
  53. 2.84 km NE of Point Arena, California · 13120 days ago · -1 km deep · 73 km away
  54. 1.64 km W of Cobb, California · 13119 days ago · 0 km deep · 97 km away
  55. 1.912 km WSW of Willows, California · 13119 days ago · 5 km deep · 89 km away
  56. 1.89 km W of Cobb, California · 13118 days ago · 0 km deep · 94 km away
  57. 2.49 km W of Cobb, California · 13118 days ago · 1 km deep · 94 km away
  58. 2.39 km W of Cobb, California · 13118 days ago · 0 km deep · 94 km away
  59. 1.77 km W of Cobb, California · 13117 days ago · 3 km deep · 95 km away
  60. 1.64 km WSW of Cobb, California · 13117 days ago · 1 km deep · 97 km away

The first 60 of 155.

Before

  1. 1.812 km N of Brooktrails, California · 13146 days ago · 10 km deep · 1 km away
  2. 2.25 km WSW of Cobb, California · 13146 days ago · -1 km deep · 99 km away
  3. 1.79 km W of Cobb, California · 13147 days ago · 0 km deep · 93 km away
  4. 2.29 km W of Cobb, California · 13147 days ago · 0 km deep · 93 km away
  5. 1.66 km W of Cobb, California · 13147 days ago · -1 km deep · 95 km away
  6. 1.55 km W of Covelo, California · 13148 days ago · 4 km deep · 28 km away
  7. 2.132 km NW of Rancho Tehama Reserve, California · 13148 days ago · 15 km deep · 95 km away
  8. 1.94 km SW of Cobb, California · 13149 days ago · 0 km deep · 100 km away
  9. 2.03 km ESE of Benbow, California · 13150 days ago · 16 km deep · 64 km away
  10. 1.94 km WSW of Cobb, California · 13151 days ago · 0 km deep · 98 km away
  11. 2.16 km W of Laytonville, California · 13151 days ago · 3 km deep · 22 km away
  12. 1.55 km WNW of Cobb, California · 13151 days ago · 0 km deep · 94 km away
  13. 1.510 km W of Cobb, California · 13151 days ago · 0 km deep · 95 km away
  14. 1.65 km WSW of Cobb, California · 13152 days ago · 1 km deep · 97 km away
  15. 2.022 km NE of Potter Valley, California · 13152 days ago · 6 km deep · 37 km away
  16. 1.69 km W of Cobb, California · 13152 days ago · -1 km deep · 95 km away
  17. 2.76 km WNW of Cobb, California · 13152 days ago · -1 km deep · 94 km away
  18. 1.68 km W of Cobb, California · 13153 days ago · 3 km deep · 95 km away
  19. 1.913 km WNW of Artois, California · 13153 days ago · 5 km deep · 89 km away
  20. 1.7near the coast of Northern California · 13153 days ago · 1 km deep · 64 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc200555. Read Sun, Oct 4, 2026, 12:13 PM UTC.