California earthquakes

M1.5 earthquake 16 km NNE of Brooktrails, California

A magnitude 1.5 earthquake struck 16 km NNE of Brooktrails, California on Sun, Jun 27, 1982, 6:00 AM PDT (13:00 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M1.8 18 km E 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
1.5 (md), micro
Local time
UTC
1982-06-27 13:00:17 UTC
Depth
10.9 km (6.7 mi), shallow
Epicenter
39.584° 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 0.4 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.23
Depth from
From location
Station coverage gap
124°
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 114 in the 60 days after this one and 59 in the 30 days before it.

After

  1. 1.818 km E of Potter Valley, California · 16159 days ago · 9 km deep · 46 km away
  2. 1.61 km NE of Calpella, California · 16158 days ago · 8 km deep · 40 km away
  3. 1.77 km SE of Hopland, California · 16158 days ago · 6 km deep · 78 km away
  4. 1.913 km NNW of Brooktrails, California · 16158 days ago · 6 km deep · 7 km away
  5. 2.26 km W of Cobb, California · 16157 days ago · 2 km deep · 97 km away
  6. 1.65 km WSW of Cobb, California · 16157 days ago · 0 km deep · 100 km away
  7. 1.9Northern California · 16156 days ago · 18 km deep · 91 km away
  8. 2.95 km WSW of Cobb, California · 16154 days ago · 2 km deep · 99 km away
  9. 2.66 km W of Cobb, California · 16154 days ago · 4 km deep · 97 km away
  10. 1.918 km SW of Weott, California · 16154 days ago · 11 km deep · 96 km away
  11. 1.94 km SSE of Calpella, California · 16153 days ago · 5 km deep · 46 km away
  12. 1.612 km NE of Cloverdale, California · 16152 days ago · 3 km deep · 86 km away
  13. 1.56 km ENE of Hopland, California · 16149 days ago · 5 km deep · 70 km away
  14. 1.87 km ESE of Willits, California · 16149 days ago · 2 km deep · 24 km away
  15. 1.77 km W of Cobb, California · 16149 days ago · 2 km deep · 97 km away
  16. 1.84 km SSE of Calpella, California · 16149 days ago · 3 km deep · 45 km away
  17. 1.924 km SE of Covelo, California · 16149 days ago · 5 km deep · 23 km away
  18. 1.79 km SE of Hopland, California · 16148 days ago · 6 km deep · 79 km away
  19. 2.84 km WSW of Cobb, California · 16146 days ago · 1 km deep · 100 km away
  20. 2.216 km NE of Upper Lake, California · 16146 days ago · 5 km deep · 60 km away
  21. 1.615 km NE of Potter Valley, California · 16146 days ago · 1 km deep · 35 km away
  22. 2.48 km SW of Willows, California · 16145 days ago · 25 km deep · 92 km away
  23. 2.012 km N of Brooktrails, California · 16145 days ago · 8 km deep · 3 km away
  24. 1.67 km NNW of Geyserville, California · 16145 days ago · 3 km deep · 97 km away
  25. 2.38 km ESE of Cloverdale, California · 16145 days ago · 5 km deep · 96 km away
  26. 2.28 km NNW of Geyserville, California · 16145 days ago · 3 km deep · 96 km away
  27. 1.816 km NNE of Upper Lake, California · 16145 days ago · 14 km deep · 56 km away
  28. 1.68 km ESE of Cloverdale, California · 16144 days ago · 6 km deep · 96 km away
  29. 2.10 km NE of North Lakeport, California · 16144 days ago · 19 km deep · 67 km away
  30. 2.422 km NNE of Potter Valley, California · 16143 days ago · 1 km deep · 33 km away
  31. 1.723 km NNE of Potter Valley, California · 16143 days ago · 4 km deep · 29 km away
  32. 2.118 km NNE of Nice, California · 16143 days ago · 6 km deep · 62 km away
  33. 2.018 km NNE of Nice, California · 16143 days ago · 8 km deep · 63 km away
  34. 2.217 km NNE of Nice, California · 16143 days ago · 13 km deep · 63 km away
  35. 1.64 km WNW of Ukiah, California · 16143 days ago · 5 km deep · 47 km away
  36. 1.54 km WNW of Ukiah, California · 16143 days ago · 4 km deep · 47 km away
  37. 1.714 km N of Brooktrails, California · 16142 days ago · 10 km deep · 5 km away
  38. 1.812 km W of Paskenta, California · 16142 days ago · 4 km deep · 66 km away
  39. 1.87 km W of Cobb, California · 16139 days ago · 3 km deep · 97 km away
  40. 3.29 km NNW of Paskenta, California · 16139 days ago · 5 km deep · 78 km away
  41. 1.56 km W of Cobb, California · 16139 days ago · 3 km deep · 98 km away
  42. 2.09 km SSE of Laytonville, California · 16138 days ago · 8 km deep · 8 km away
  43. 2.06 km NE of Cloverdale, California · 16138 days ago · 4 km deep · 87 km away
  44. 2.514 km W of Rancho Tehama Reserve, California · 16138 days ago · -1 km deep · 82 km away
  45. 2.115 km W of Paskenta, California · 16138 days ago · 5 km deep · 64 km away
  46. 3.714 km W of Rancho Tehama Reserve, California · 16138 days ago · -1 km deep · 83 km away
  47. 2.42 km NW of Paskenta, California · 16138 days ago · 5 km deep · 75 km away
  48. 2.68 km NNW of Paskenta, California · 16137 days ago · 7 km deep · 76 km away
  49. 2.216 km NW of Paskenta, California · 16137 days ago · 8 km deep · 74 km away
  50. 2.414 km W of Rancho Tehama Reserve, California · 16136 days ago · 0 km deep · 82 km away
  51. 2.09 km WNW of Cobb, California · 16136 days ago · 1 km deep · 93 km away
  52. 1.57 km WSW of Cobb, California · 16133 days ago · 3 km deep · 98 km away
  53. 2.419 km NW of Paskenta, California · 16133 days ago · 2 km deep · 75 km away
  54. 2.012 km SSW of Hopland, California · 16132 days ago · 0 km deep · 82 km away
  55. 1.84 km E of Point Arena, California · 16131 days ago · 3 km deep · 79 km away
  56. 1.59 km WSW of Cobb, California · 16131 days ago · 1 km deep · 98 km away
  57. 1.910 km SE of Hopland, California · 16130 days ago · 7 km deep · 80 km away
  58. 2.217 km NE of Upper Lake, California · 16129 days ago · 7 km deep · 57 km away
  59. 2.124 km E of Covelo, California · 16129 days ago · 4 km deep · 39 km away
  60. 1.7Northern California · 16129 days ago · 11 km deep · 34 km away

The first 60 of 114.

Before

  1. 1.87 km NE of Cloverdale, California · 16162 days ago · 2 km deep · 88 km away
  2. 1.811 km SE of Hopland, California · 16163 days ago · 6 km deep · 80 km away
  3. 1.523 km NE of Potter Valley, California · 16163 days ago · 11 km deep · 37 km away
  4. 1.723 km NNE of Upper Lake, California · 16164 days ago · 11 km deep · 49 km away
  5. 1.75 km WSW of Cobb, California · 16164 days ago · 0 km deep · 100 km away
  6. 1.84 km E of Garberville, California · 16164 days ago · 20 km deep · 67 km away
  7. 2.54 km WSW of Cobb, California · 16164 days ago · 1 km deep · 100 km away
  8. 1.78 km NNW of Geyserville, California · 16165 days ago · 3 km deep · 96 km away
  9. 1.716 km W of Williams, California · 16165 days ago · 2 km deep · 99 km away
  10. 1.63 km NNE of Cobb, California · 16167 days ago · 3 km deep · 98 km away
  11. 1.517 km NE of Potter Valley, California · 16167 days ago · 3 km deep · 34 km away
  12. 2.522 km NE of Potter Valley, California · 16167 days ago · 11 km deep · 37 km away
  13. 1.95 km NE of Brooktrails, California · 16168 days ago · 4 km deep · 11 km away
  14. 2.122 km NE of Potter Valley, California · 16168 days ago · 11 km deep · 37 km away
  15. 1.922 km NE of Potter Valley, California · 16168 days ago · 11 km deep · 37 km away
  16. 1.922 km NE of Potter Valley, California · 16168 days ago · 11 km deep · 37 km away
  17. 2.322 km NE of Potter Valley, California · 16168 days ago · 11 km deep · 37 km away
  18. 1.622 km NE of Potter Valley, California · 16168 days ago · 13 km deep · 37 km away
  19. 2.822 km NE of Potter Valley, California · 16168 days ago · 12 km deep · 37 km away
  20. 1.61 km NW of Weott, California · 16170 days ago · 26 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1075729. Read Wed, Sep 23, 2026, 9:56 PM UTC.