California earthquakes

M1.9 earthquake 5 km NE of Brooktrails, California

A magnitude 1.9 earthquake struck 5 km NE of Brooktrails, California on Fri, Jun 18, 1982, 2:29 PM PDT (21:29 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M2.5 22 km NE of Potter Valley, 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
1.9 (md), micro
Local time
UTC
1982-06-18 21:29:54 UTC
Depth
4.0 km (2.5 mi), shallow
Epicenter
39.484° N, 123.341° 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, 0.8 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
105°
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: 129 in the 60 days after this one and 64 in the 30 days before it.

After

  1. 2.522 km NE of Potter Valley, California · 16166 days ago · 11 km deep · 35 km away
  2. 1.517 km NE of Potter Valley, California · 16166 days ago · 3 km deep · 31 km away
  3. 1.63 km NNE of Cobb, California · 16166 days ago · 3 km deep · 89 km away
  4. 1.716 km W of Williams, California · 16164 days ago · 2 km deep · 94 km away
  5. 1.78 km NNW of Geyserville, California · 16164 days ago · 3 km deep · 86 km away
  6. 2.54 km WSW of Cobb, California · 16163 days ago · 1 km deep · 90 km away
  7. 1.84 km E of Garberville, California · 16163 days ago · 20 km deep · 77 km away
  8. 1.75 km WSW of Cobb, California · 16163 days ago · 0 km deep · 90 km away
  9. 1.723 km NNE of Upper Lake, California · 16163 days ago · 11 km deep · 45 km away
  10. 1.523 km NE of Potter Valley, California · 16162 days ago · 11 km deep · 35 km away
  11. 1.811 km SE of Hopland, California · 16162 days ago · 6 km deep · 69 km away
  12. 1.87 km NE of Cloverdale, California · 16161 days ago · 2 km deep · 78 km away
  13. 1.64 km SSW of Cobb, California · 16161 days ago · 0 km deep · 93 km away
  14. 1.516 km NNE of Brooktrails, California · 16158 days ago · 11 km deep · 11 km away
  15. 1.818 km E of Potter Valley, California · 16158 days ago · 9 km deep · 41 km away
  16. 1.61 km NE of Calpella, California · 16158 days ago · 8 km deep · 30 km away
  17. 1.77 km SE of Hopland, California · 16157 days ago · 6 km deep · 67 km away
  18. 1.913 km NNW of Brooktrails, California · 16157 days ago · 6 km deep · 11 km away
  19. 2.26 km W of Cobb, California · 16156 days ago · 2 km deep · 88 km away
  20. 1.65 km WSW of Cobb, California · 16156 days ago · 0 km deep · 90 km away
  21. 1.99 km E of Lower Lake, California · 16154 days ago · 1 km deep · 96 km away
  22. 2.95 km WSW of Cobb, California · 16153 days ago · 2 km deep · 89 km away
  23. 2.66 km W of Cobb, California · 16153 days ago · 4 km deep · 88 km away
  24. 1.94 km SSE of Calpella, California · 16152 days ago · 5 km deep · 35 km away
  25. 1.77 km ESE of Geyserville, California · 16151 days ago · 6 km deep · 99 km away
  26. 1.612 km NE of Cloverdale, California · 16151 days ago · 3 km deep · 76 km away
  27. 1.56 km ENE of Hopland, California · 16148 days ago · 5 km deep · 60 km away
  28. 1.87 km ESE of Willits, California · 16148 days ago · 2 km deep · 13 km away
  29. 1.77 km W of Cobb, California · 16148 days ago · 2 km deep · 87 km away
  30. 1.84 km SSE of Calpella, California · 16148 days ago · 3 km deep · 35 km away
  31. 1.924 km SE of Covelo, California · 16148 days ago · 5 km deep · 27 km away
  32. 1.79 km SE of Hopland, California · 16147 days ago · 6 km deep · 68 km away
  33. 2.84 km WSW of Cobb, California · 16145 days ago · 1 km deep · 90 km away
  34. 2.216 km NE of Upper Lake, California · 16145 days ago · 5 km deep · 54 km away
  35. 1.615 km NE of Potter Valley, California · 16145 days ago · 1 km deep · 31 km away
  36. 2.48 km SW of Willows, California · 16144 days ago · 25 km deep · 91 km away
  37. 2.012 km N of Brooktrails, California · 16144 days ago · 8 km deep · 8 km away
  38. 1.67 km NNW of Geyserville, California · 16144 days ago · 3 km deep · 87 km away
  39. 2.38 km ESE of Cloverdale, California · 16144 days ago · 5 km deep · 86 km away
  40. 2.28 km NNW of Geyserville, California · 16144 days ago · 3 km deep · 86 km away
  41. 1.816 km NNE of Upper Lake, California · 16144 days ago · 14 km deep · 51 km away
  42. 1.68 km ESE of Cloverdale, California · 16143 days ago · 6 km deep · 85 km away
  43. 1.65 km SW of Cobb, California · 16143 days ago · -1 km deep · 92 km away
  44. 2.10 km NE of North Lakeport, California · 16143 days ago · 19 km deep · 58 km away
  45. 2.422 km NNE of Potter Valley, California · 16142 days ago · 1 km deep · 32 km away
  46. 1.723 km NNE of Potter Valley, California · 16142 days ago · 4 km deep · 28 km away
  47. 2.118 km NNE of Nice, California · 16142 days ago · 6 km deep · 57 km away
  48. 2.018 km NNE of Nice, California · 16142 days ago · 8 km deep · 57 km away
  49. 2.217 km NNE of Nice, California · 16142 days ago · 13 km deep · 58 km away
  50. 1.64 km WNW of Ukiah, California · 16142 days ago · 5 km deep · 36 km away
  51. 1.54 km WNW of Ukiah, California · 16142 days ago · 4 km deep · 36 km away
  52. 1.714 km N of Brooktrails, California · 16141 days ago · 10 km deep · 11 km away
  53. 1.812 km W of Paskenta, California · 16141 days ago · 4 km deep · 73 km away
  54. 2.35 km SW of Cobb, California · 16138 days ago · 0 km deep · 91 km away
  55. 1.87 km W of Cobb, California · 16138 days ago · 3 km deep · 87 km away
  56. 3.29 km NNW of Paskenta, California · 16138 days ago · 5 km deep · 85 km away
  57. 1.56 km W of Cobb, California · 16138 days ago · 3 km deep · 88 km away
  58. 2.09 km SSE of Laytonville, California · 16137 days ago · 8 km deep · 16 km away
  59. 2.06 km NE of Cloverdale, California · 16137 days ago · 4 km deep · 77 km away
  60. 2.514 km W of Rancho Tehama Reserve, California · 16137 days ago · -1 km deep · 89 km away

The first 60 of 129.

Before

  1. 2.122 km NE of Potter Valley, California · 16167 days ago · 11 km deep · 35 km away
  2. 1.922 km NE of Potter Valley, California · 16168 days ago · 11 km deep · 35 km away
  3. 1.922 km NE of Potter Valley, California · 16168 days ago · 11 km deep · 35 km away
  4. 2.322 km NE of Potter Valley, California · 16168 days ago · 11 km deep · 35 km away
  5. 1.622 km NE of Potter Valley, California · 16168 days ago · 13 km deep · 35 km away
  6. 2.822 km NE of Potter Valley, California · 16168 days ago · 12 km deep · 35 km away
  7. 2.110 km SE of Hopland, California · 16169 days ago · 7 km deep · 69 km away
  8. 2.64 km WSW of Cobb, California · 16169 days ago · 1 km deep · 91 km away
  9. 1.64 km NE of Talmage, California · 16169 days ago · 7 km deep · 40 km away
  10. 2.26 km SW of Cobb, California · 16169 days ago · 0 km deep · 92 km away
  11. 2.04 km NE of Talmage, California · 16171 days ago · 7 km deep · 41 km away
  12. 2.215 km NNE of Brooktrails, California · 16171 days ago · 11 km deep · 11 km away
  13. 1.98 km NNW of Geyserville, California · 16171 days ago · 2 km deep · 86 km away
  14. 3.07 km N of Geyserville, California · 16171 days ago · 5 km deep · 87 km away
  15. 1.57 km NNW of Potter Valley, California · 16171 days ago · 0 km deep · 20 km away
  16. 1.52 km E of Kelseyville, California · 16172 days ago · 13 km deep · 73 km away
  17. 1.67 km ENE of Brooktrails, California · 16173 days ago · 7 km deep · 3 km away
  18. 2.05 km WSW of Cobb, California · 16174 days ago · 0 km deep · 90 km away
  19. 1.85 km WSW of Cobb, California · 16174 days ago · 0 km deep · 91 km away
  20. 1.93 km E of Calpella, CA · 16175 days ago · 4 km deep · 31 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1075462. Read Tue, Sep 22, 2026, 11:28 PM UTC.