California earthquakes

M1.5 earthquake 9 km WNW of Cobb, CA

A magnitude 1.5 earthquake struck 9 km WNW of Cobb, CA on Sat, Aug 22, 2026, 3:21 AM PDT (10:21 UTC), 2 km (1 mi) below the surface.

Automatic solution: the magnitude and location may still be revised.

A larger quake followed: M3.7 10 km W of Boonville, CA. This one was a foreshock.

Cobb 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, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2026-08-22 10:21:25 UTC
Depth
2.0 km (1.2 mi), shallow
Epicenter
38.840° N, 122.822° W
Tsunami flag
No
Status
Automatic solution, may be revised

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

An automatic solution; a seismologist may revise it.

Location uncertainty
About 0.2 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
61°
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: 171 since this one and 143 in the 30 days before it.

After

  1. 1.63 km SE of The Geysers, CA · 41 days ago · 3 km deep · 12 km away
  2. 1.518 km SE of Lake Pillsbury, CA · 40 days ago · 4 km deep · 52 km away
  3. 2.610 km N of Lake Pillsbury, CA · 40 days ago · 12 km deep · 74 km away
  4. 1.810 km N of Lake Pillsbury, CA · 40 days ago · 11 km deep · 74 km away
  5. 1.56 km WNW of Cobb, CA · 40 days ago · 2 km deep · 3 km away
  6. 1.511 km N of Redwood Valley, CA · 40 days ago · 8 km deep · 67 km away
  7. 1.75 km NNW of The Geysers, CA · 39 days ago · 2 km deep · 4 km away
  8. 2.49 km WNW of The Geysers, CA · 39 days ago · 2 km deep · 3 km away
  9. 1.69 km NW of Redwood Valley, CA · 39 days ago · 7 km deep · 66 km away
  10. 1.86 km W of Cobb, CA · 38 days ago · 2 km deep · 2 km away
  11. 2.011 km WNW of Redwood Valley, CA · 38 days ago · 3 km deep · 67 km away
  12. 1.96 km NW of The Geysers, CA · 38 days ago · 3 km deep · 3 km away
  13. 1.97 km NW of The Geysers, CA · 38 days ago · 2 km deep · 2 km away
  14. 1.76 km W of Cobb, CA · 37 days ago · 2 km deep · 3 km away
  15. 1.96 km NNW of The Geysers, CA · 37 days ago · 2 km deep · 3 km away · felt by 1
  16. 1.93 km SW of Anderson Springs, CA · 37 days ago · 1 km deep · 13 km away
  17. 2.010 km E of Cloverdale, CA · 37 days ago · 6 km deep · 9 km away
  18. 1.53 km SW of Anderson Springs, CA · 36 days ago · 2 km deep · 12 km away
  19. 1.81 km NE of The Geysers, CA · 36 days ago · 1 km deep · 9 km away
  20. 2.22 km NE of The Geysers, CA · 36 days ago · 2 km deep · 9 km away
  21. 1.56 km NNW of The Geysers, CA · 36 days ago · 3 km deep · 3 km away
  22. 1.711 km N of Redwood Valley, CA · 36 days ago · 7 km deep · 68 km away
  23. 2.46 km N of Redwood Valley, CA · 35 days ago · 6 km deep · 63 km away · felt by 13
  24. 1.614 km ESE of Hidden Valley Lake, CA · 35 days ago · 7 km deep · 36 km away
  25. 1.98 km NW of Redwood Valley, CA · 35 days ago · 8 km deep · 66 km away
  26. 1.86 km NW of The Geysers, CA · 35 days ago · 2 km deep · 3 km away
  27. 1.86 km ESE of Santa Rosa, CA · 35 days ago · 10 km deep · 49 km away
  28. 1.73 km S of Redwood Valley, CA · 34 days ago · 4 km deep · 55 km away
  29. 1.77 km ESE of Cloverdale, CA · 34 days ago · 6 km deep · 13 km away
  30. 1.711 km ESE of Angwin, CA · 34 days ago · 6 km deep · 54 km away
  31. 2.16 km NW of The Geysers, CA · 33 days ago · 3 km deep · 4 km away · felt by 1
  32. 1.98 km SE of Soda Bay, CA · 33 days ago · 2 km deep · 15 km away · felt by 11
  33. 1.615 km ESE of Navarro Head, CA · 31 days ago · 5 km deep · 76 km away
  34. 2.015 km W of Ukiah, CA · 31 days ago · 4 km deep · 59 km away
  35. 1.52 km NNW of The Geysers, CA · 31 days ago · 3 km deep · 7 km away
  36. 2.42 km N of Middletown, CA · 31 days ago · 5 km deep · 20 km away · felt by 3
  37. 1.94 km SSE of Cloverdale, CA · 30 days ago · 4 km deep · 17 km away · felt by 2
  38. 1.511 km ENE of Hidden Valley Lake, CA · 30 days ago · 8 km deep · 33 km away
  39. 1.67 km WNW of Cobb, CA · 30 days ago · 2 km deep · 2 km away
  40. 1.68 km ESE of Cloverdale, CA · 29 days ago · 7 km deep · 12 km away
  41. 2.05 km E of Williams, CA · 29 days ago · 21 km deep · 72 km away
  42. 2.15 km ENE of Willits, CA · 29 days ago · 1 km deep · 76 km away
  43. 2.15 km ENE of Willits, CA · 29 days ago · 0 km deep · 76 km away · felt by 1
  44. 3.33 km ESE of Larkfield-Wikiup, CA · 29 days ago · 9 km deep · 39 km away · felt by 1,843
  45. 1.66 km SE of Cloverdale, CA · 29 days ago · 7 km deep · 14 km away
  46. 1.515 km SE of Lake Pillsbury, CA · 29 days ago · 7 km deep · 53 km away
  47. 2.05 km NE of Willits, CA · 28 days ago · -1 km deep · 79 km away · felt by 1
  48. 2.32 km N of The Geysers, CA · 28 days ago · 2 km deep · 8 km away
  49. 1.64 km W of Cobb, CA · 27 days ago · 2 km deep · 5 km away
  50. 1.75 km SW of Redwood Valley, CA · 27 days ago · 3 km deep · 57 km away
  51. 1.85 km NW of The Geysers, CA · 27 days ago · 3 km deep · 4 km away
  52. 1.55 km WNW of Cobb, CA · 26 days ago · 2 km deep · 3 km away
  53. 1.99 km E of Willits, CA · 26 days ago · 7 km deep · 73 km away
  54. 1.92 km E of The Geysers, CA · 26 days ago · 1 km deep · 11 km away
  55. 2.33 km SSW of Cobb, CA · 26 days ago · 2 km deep · 9 km away · felt by 1
  56. 1.98 km E of Willits, CA · 26 days ago · 8 km deep · 73 km away · felt by 2
  57. 2.05 km WNW of Cobb, CA · 25 days ago · 2 km deep · 4 km away
  58. 1.50 km SSW of Angwin, CA · 25 days ago · 0 km deep · 44 km away
  59. 1.83 km SE of The Geysers, CA · 24 days ago · 3 km deep · 12 km away
  60. 1.72 km NW of The Geysers, CA · 24 days ago · 4 km deep · 7 km away

The first 60 of 171.

Before

  1. 1.97 km ESE of Williams, CA · 43 days ago · 20 km deep · 73 km away · felt by 1
  2. 1.84 km ENE of Saint Helena, CA · 43 days ago · 8 km deep · 50 km away
  3. 1.78 km ESE of Cloverdale, CA · 43 days ago · 7 km deep · 13 km away
  4. 1.78 km NW of Redwood Valley, CA · 43 days ago · 7 km deep · 66 km away
  5. 1.68 km ESE of Cloverdale, CA · 43 days ago · 5 km deep · 12 km away
  6. 1.819 km NE of Upper Lake, CA · 43 days ago · 6 km deep · 51 km away
  7. 1.63 km WNW of Anderson Springs, CA · 43 days ago · 2 km deep · 11 km away
  8. 2.32 km N of The Geysers, CA · 44 days ago · 1 km deep · 8 km away
  9. 2.08 km WNW of Cobb, CA · 44 days ago · 2 km deep · 1 km away
  10. 2.010 km WNW of The Geysers, CA · 44 days ago · 2 km deep · 3 km away
  11. 1.89 km NW of The Geysers, CA · 44 days ago · 2 km deep · 3 km away
  12. 1.68 km WNW of Cobb, CA · 44 days ago · 2 km deep · 1 km away
  13. 1.86 km WNW of The Geysers, CA · 44 days ago · 3 km deep · 4 km away
  14. 1.56 km WNW of Cobb, CA · 45 days ago · 2 km deep · 2 km away
  15. 1.67 km W of Cobb, CA · 45 days ago · 2 km deep · 2 km away
  16. 1.511 km N of Redwood Valley, CA · 45 days ago · 8 km deep · 68 km away
  17. 1.56 km W of Cobb, CA · 45 days ago · 3 km deep · 3 km away
  18. 1.88 km NW of Redwood Valley, CA · 45 days ago · 7 km deep · 65 km away
  19. 2.03 km ESE of The Geysers, CA · 45 days ago · 1 km deep · 12 km away · felt by 1
  20. 1.57 km W of Cobb, CA · 46 days ago · 2 km deep · 2 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc75422902. Read Fri, Oct 2, 2026, 5:07 PM UTC.