California earthquakes

M1.8 earthquake 7km ENE of Brooktrails, CA

A magnitude 1.8 earthquake struck 7km ENE of Brooktrails, CA on Wed, Sep 8, 2021, 8:00 AM PDT (15:00 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.1 19km NW of Covelo, CA. 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
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-09-08 15:00:25 UTC
Depth
6.3 km (3.9 mi), shallow
Epicenter
39.471° N, 123.316° 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, 0.4 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
75°
Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 176 in the 60 days after this one and 79 in the 30 days before it.

After

  1. 2.15km NW of The Geysers, CA · 1851 days ago · 2 km deep · 86 km away
  2. 2.36km W of Cobb, CA · 1850 days ago · 3 km deep · 85 km away
  3. 1.76km WNW of Cobb, CA · 1850 days ago · 2 km deep · 84 km away
  4. 1.63km SSE of Redwood Valley, CA · 1850 days ago · 6 km deep · 27 km away
  5. 2.05km ENE of Talmage, CA · 1849 days ago · 9 km deep · 40 km away
  6. 2.422km N of Laytonville, CA · 1848 days ago · 6 km deep · 49 km away · felt by 1
  7. 2.38km NW of Laytonville, CA · 1848 days ago · 8 km deep · 36 km away
  8. 1.714km W of Redwood Valley, CA · 1848 days ago · 5 km deep · 22 km away
  9. 1.58km NNW of Laytonville, CA · 1848 days ago · 10 km deep · 36 km away
  10. 2.55km NW of The Geysers, CA · 1848 days ago · 2 km deep · 86 km away
  11. 1.710km NNW of Redwood Valley, CA · 1847 days ago · 8 km deep · 15 km away
  12. 1.712km SE of Point Arena, CA · 1844 days ago · 4 km deep · 72 km away
  13. 1.83km ENE of The Geysers, CA · 1844 days ago · 1 km deep · 91 km away
  14. 2.01km WNW of Stony Gorge Reservoir, CA · 1843 days ago · 13 km deep · 68 km away
  15. 2.45km WNW of The Geysers, CA · 1843 days ago · 4 km deep · 87 km away
  16. 1.714km SE of Lake Pillsbury, CA · 1843 days ago · 1 km deep · 43 km away
  17. 1.510km W of Redwood Valley, CA · 1843 days ago · 5 km deep · 22 km away
  18. 1.614km NNE of Brooktrails, CA · 1842 days ago · 8 km deep · 11 km away
  19. 1.62km NW of Anderson Springs, CA · 1842 days ago · 2 km deep · 93 km away
  20. 1.913km W of Alder Springs, CA · 1842 days ago · 0 km deep · 43 km away
  21. 1.96km ESE of Lake Pillsbury, CA · 1842 days ago · 5 km deep · 37 km away
  22. 1.55km NW of The Geysers, CA · 1841 days ago · 3 km deep · 86 km away
  23. 2.09km WNW of The Geysers, CA · 1840 days ago · 2 km deep · 83 km away
  24. 1.50km WNW of The Geysers, CA · 1840 days ago · 1 km deep · 91 km away
  25. 1.66km NW of Boonville, CA · 1840 days ago · 0 km deep · 48 km away
  26. 1.86km SE of Lake Pillsbury, CA · 1838 days ago · 2 km deep · 37 km away
  27. 2.63km NW of The Geysers, CA · 1837 days ago · 3 km deep · 88 km away · felt by 3
  28. 1.73km SW of Anderson Springs, CA · 1837 days ago · 2 km deep · 95 km away
  29. 1.76km NW of The Geysers, CA · 1836 days ago · 3 km deep · 85 km away
  30. 1.76km NW of The Geysers, CA · 1836 days ago · 3 km deep · 85 km away
  31. 1.73km NNW of The Geysers, CA · 1836 days ago · 1 km deep · 88 km away
  32. 2.16km SW of Laytonville, CA · 1836 days ago · 3 km deep · 26 km away
  33. 1.63km SW of Anderson Springs, CA · 1834 days ago · 2 km deep · 95 km away
  34. 2.012km ESE of Boonville, CA · 1834 days ago · 0 km deep · 58 km away
  35. 2.322km N of Lake Pillsbury, CA · 1834 days ago · 13 km deep · 31 km away · felt by 2
  36. 1.63km SE of The Geysers, CA · 1833 days ago · 2 km deep · 94 km away
  37. 1.91km NW of The Geysers, CA · 1831 days ago · 2 km deep · 90 km away
  38. 1.814km SE of Lake Pillsbury, CA · 1831 days ago · 7 km deep · 44 km away
  39. 1.816km NE of Upper Lake, CA · 1830 days ago · -1 km deep · 50 km away
  40. 1.710km NNW of Redwood Valley, CA · 1829 days ago · 6 km deep · 15 km away
  41. 2.71km NE of The Geysers, CA · 1829 days ago · 0 km deep · 91 km away · felt by 3
  42. 1.82km SSW of Cobb, CA · 1829 days ago · 1 km deep · 90 km away
  43. 1.51km E of The Geysers, CA · 1829 days ago · 0 km deep · 91 km away
  44. 1.93km SSW of Anderson Springs, CA · 1828 days ago · 2 km deep · 96 km away
  45. 1.51km NNW of The Geysers, CA · 1828 days ago · 1 km deep · 90 km away
  46. 1.62km N of The Geysers, CA · 1828 days ago · 2 km deep · 89 km away
  47. 1.910km NW of The Geysers, CA · 1828 days ago · 2 km deep · 82 km away
  48. 2.314km SE of Rockport, CA · 1828 days ago · 0 km deep · 38 km away
  49. 1.55km WNW of The Geysers, CA · 1828 days ago · 1 km deep · 86 km away
  50. 1.74km W of Cobb, CA · 1827 days ago · 2 km deep · 86 km away
  51. 1.73km ENE of Talmage, CA · 1827 days ago · 9 km deep · 39 km away
  52. 1.78km W of Cobb, CA · 1827 days ago · 2 km deep · 83 km away
  53. 2.15km WNW of Cobb, CA · 1826 days ago · 2 km deep · 85 km away
  54. 1.810km WNW of The Geysers, CA · 1826 days ago · 3 km deep · 82 km away
  55. 1.58km NW of The Geysers, CA · 1825 days ago · 2 km deep · 83 km away
  56. 2.28km NW of The Geysers, CA · 1825 days ago · 2 km deep · 83 km away
  57. 1.84km NW of The Geysers, CA · 1825 days ago · 0 km deep · 87 km away
  58. 1.69km W of Cobb, CA · 1823 days ago · 2 km deep · 82 km away
  59. 1.912km SE of Covelo, CA · 1823 days ago · -1 km deep · 29 km away
  60. 2.010km N of Lake Pillsbury, CA · 1823 days ago · 8 km deep · 31 km away

The first 60 of 176.

Before

  1. 1.77km NW of The Geysers, CA · 1852 days ago · 3 km deep · 84 km away
  2. 1.57km W of Cobb, CA · 1852 days ago · 2 km deep · 83 km away
  3. 1.83km SW of Anderson Springs, CA · 1852 days ago · 2 km deep · 95 km away · felt by 1
  4. 1.97km NW of Laytonville, CA · 1852 days ago · 8 km deep · 35 km away
  5. 1.59km WNW of Cobb, CA · 1853 days ago · 2 km deep · 82 km away
  6. 1.66km WNW of The Geysers, CA · 1853 days ago · 2 km deep · 85 km away
  7. 2.07km NW of The Geysers, CA · 1853 days ago · 3 km deep · 85 km away
  8. 2.56km NW of The Geysers, CA · 1853 days ago · 3 km deep · 85 km away · felt by 1
  9. 3.17km NW of The Geysers, CA · 1853 days ago · 2 km deep · 85 km away · felt by 2
  10. 2.31km NNW of The Geysers, CA · 1853 days ago · 1 km deep · 90 km away
  11. 1.80km SW of Laytonville, CA · 1853 days ago · 5 km deep · 28 km away
  12. 1.62km NW of The Geysers, CA · 1854 days ago · 2 km deep · 90 km away
  13. 2.21km NW of The Geysers, CA · 1854 days ago · 2 km deep · 90 km away
  14. 3.74km ENE of Talmage, CA · 1855 days ago · 10 km deep · 40 km away · felt by 199
  15. 1.74km ENE of Talmage, CA · 1856 days ago · 6 km deep · 40 km away
  16. 1.513km N of Brooktrails, CA · 1856 days ago · 8 km deep · 12 km away
  17. 1.813km WNW of Alder Springs, CA · 1856 days ago · 3 km deep · 45 km away
  18. 1.72km SW of Cobb, CA · 1856 days ago · 2 km deep · 89 km away
  19. 1.92km WNW of Cobb, CA · 1857 days ago · 1 km deep · 86 km away
  20. 3.84km ENE of Talmage, CA · 1857 days ago · 9 km deep · 40 km away · felt by 316

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73622171. Read Sun, Oct 4, 2026, 12:33 AM UTC.