California earthquakes

M2.6 earthquake 15 km ENE of Willows, California

A magnitude 2.6 earthquake struck 15 km ENE of Willows, California on Sat, Jul 27, 1985, 11:30 AM PDT (18:30 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M3.4 9 km NNW of Princeton, California. This one was a foreshock.

Willows 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
2.6 (md), micro
Local time
UTC
1985-07-27 18:30:57 UTC
Depth
13.7 km (8.5 mi), shallow
Epicenter
39.551° N, 122.020° 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 0.8 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.25
Depth from
From location
Station coverage gap
109°
Stations used
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 61 in the 60 days after this one and 25 in the 30 days before it.

After

  1. 1.89 km NW of Cohasset, California · 15034 days ago · 6 km deep · 52 km away
  2. 1.79 km NW of Cohasset, California · 15033 days ago · -1 km deep · 53 km away
  3. 2.125 km WNW of Elk Creek, California · 15032 days ago · 4 km deep · 69 km away
  4. 2.324 km WNW of Elk Creek, California · 15031 days ago · 2 km deep · 68 km away
  5. 1.624 km WNW of Elk Creek, California · 15031 days ago · 4 km deep · 68 km away
  6. 3.313 km N of Princeton, California · 15031 days ago · 12 km deep · 3 km away
  7. 1.811 km NE of Potter Valley, California · 15029 days ago · 1 km deep · 88 km away
  8. 1.931 km W of Paskenta, California · 15028 days ago · -1 km deep · 86 km away
  9. 1.59 km NE of Vina, California · 15028 days ago · 7 km deep · 48 km away
  10. 2.021 km NNE of Upper Lake, California · 15027 days ago · 6 km deep · 75 km away
  11. 1.514 km E of Cottonwood, California · 15026 days ago · 10 km deep · 93 km away
  12. 2.45 km NNE of Belden, California · 15024 days ago · -1 km deep · 88 km away
  13. 2.015 km SW of Paskenta, California · 15023 days ago · 6 km deep · 63 km away
  14. 1.910 km SW of Williams, California · 15023 days ago · 15 km deep · 55 km away
  15. 2.08 km SSW of Colusa, California · 15021 days ago · 6 km deep · 46 km away
  16. 1.512 km E of Paynes Creek, California · 15020 days ago · 11 km deep · 89 km away
  17. 2.19 km E of Hidden Valley Lake, California · 15018 days ago · 7 km deep · 90 km away
  18. 1.84 km S of Hamilton City, California · 15017 days ago · 5 km deep · 17 km away
  19. 2.39 km SE of Rancho Tehama Reserve, California · 15017 days ago · 5 km deep · 52 km away
  20. 2.08 km NE of Vina, California · 15014 days ago · 1 km deep · 48 km away
  21. 2.022 km WSW of Williams, California · 15013 days ago · 3 km deep · 60 km away
  22. 1.613 km ENE of Clearlake Oaks, California · 15012 days ago · 5 km deep · 70 km away
  23. 1.52 km NNW of Clearlake, California · 15012 days ago · 2 km deep · 83 km away
  24. 1.99 km WNW of Cohasset, California · 15008 days ago · 16 km deep · 47 km away
  25. 2.93 km NNE of Clearlake, California · 15006 days ago · 1 km deep · 81 km away
  26. 1.63 km NNE of Clearlake, California · 15006 days ago · -1 km deep · 81 km away
  27. 1.63 km N of Clearlake, California · 15005 days ago · -1 km deep · 81 km away
  28. 3.24 km N of Belden, California · 15005 days ago · 0 km deep · 87 km away
  29. 1.65 km NNE of Belden, California · 15005 days ago · 0 km deep · 87 km away
  30. 1.75 km NNE of Belden, California · 15005 days ago · 3 km deep · 88 km away
  31. 1.64 km N of Belden, California · 15004 days ago · 4 km deep · 86 km away
  32. 2.520 km WSW of Williams, California · 15000 days ago · 2 km deep · 58 km away
  33. 2.220 km WSW of Williams, California · 15000 days ago · 0 km deep · 59 km away
  34. 2.021 km WSW of Williams, California · 15000 days ago · 2 km deep · 59 km away
  35. 2.420 km WSW of Williams, California · 14997 days ago · 2 km deep · 58 km away
  36. 2.620 km WSW of Williams, California · 14997 days ago · 2 km deep · 58 km away
  37. 1.63 km NNW of Belden, California · 14997 days ago · 1 km deep · 84 km away
  38. 1.922 km WSW of Williams, California · 14997 days ago · 2 km deep · 59 km away
  39. 1.614 km ENE of Clearlake Oaks, California · 14997 days ago · 10 km deep · 68 km away
  40. 1.813 km ESE of Mineral, California · 14995 days ago · 8 km deep · 97 km away
  41. 1.64 km N of Cobb, California · 14992 days ago · 2 km deep · 98 km away
  42. 3.49 km NNW of Princeton, California · 14991 days ago · 19 km deep · 8 km away
  43. 1.59 km ESE of Hidden Valley Lake, California · 14989 days ago · 4 km deep · 96 km away
  44. 1.920 km NE of Upper Lake, California · 14989 days ago · -1 km deep · 70 km away
  45. 1.812 km NE of Upper Lake, California · 14987 days ago · 2 km deep · 76 km away
  46. 2.2Northern California · 14986 days ago · 2 km deep · 76 km away
  47. 2.512 km NE of Upper Lake, California · 14986 days ago · 3 km deep · 75 km away
  48. 2.44 km E of Williams, California · 14986 days ago · 16 km deep · 45 km away
  49. 1.812 km NE of Upper Lake, California · 14985 days ago · 2 km deep · 75 km away
  50. 1.612 km NE of Upper Lake, California · 14985 days ago · 4 km deep · 76 km away
  51. 2.05 km NE of Williams, California · 14984 days ago · 18 km deep · 42 km away
  52. 1.86 km E of Williams, California · 14983 days ago · 4 km deep · 44 km away
  53. 2.55 km ENE of Williams, California · 14981 days ago · 10 km deep · 42 km away
  54. 2.09 km WNW of Arbuckle, California · 14981 days ago · 5 km deep · 55 km away
  55. 2.07 km ESE of Williams, California · 14981 days ago · 8 km deep · 48 km away
  56. 2.36 km ENE of Williams, California · 14981 days ago · 16 km deep · 43 km away
  57. 1.85 km E of Clearlake Oaks, California · 14981 days ago · -1 km deep · 77 km away
  58. 2.013 km SW of Durham, California · 14980 days ago · 18 km deep · 8 km away
  59. 2.127 km ESE of Covelo, California · 14979 days ago · 4 km deep · 82 km away
  60. 2.010 km NW of Cohasset, California · 14975 days ago · 5 km deep · 52 km away

The first 60 of 61.

Before

  1. 2.027 km N of Potter Valley, California · 15034 days ago · 4 km deep · 92 km away
  2. 1.79 km ESE of Hidden Valley Lake, California · 15036 days ago · 7 km deep · 94 km away
  3. 2.13 km NNW of Biggs, California · 15037 days ago · 11 km deep · 28 km away
  4. 3.14 km NNE of Belden, California · 15039 days ago · -1 km deep · 87 km away
  5. 2.28 km ENE of Artois, California · 15040 days ago · 5 km deep · 12 km away
  6. 2.85 km NNE of Belden, California · 15040 days ago · -1 km deep · 88 km away
  7. 1.812 km WSW of Durham, California · 15040 days ago · 18 km deep · 10 km away
  8. 1.87 km NW of Cobb, California · 15041 days ago · 4 km deep · 100 km away
  9. 1.713 km NE of Hidden Valley Lake, California · 15041 days ago · 14 km deep · 83 km away
  10. 2.024 km NNE of Potter Valley, California · 15046 days ago · 4 km deep · 86 km away
  11. 2.14 km S of Hamilton City, California · 15047 days ago · 13 km deep · 16 km away
  12. 2.27 km SSW of Colusa, California · 15047 days ago · 15 km deep · 44 km away
  13. 1.728 km NE of Potter Valley, California · 15049 days ago · 8 km deep · 75 km away
  14. 2.28 km WSW of Hamilton City, California · 15051 days ago · 16 km deep · 18 km away
  15. 1.98 km WSW of Meridian, California · 15052 days ago · 4 km deep · 50 km away
  16. 2.023 km SE of Covelo, California · 15054 days ago · 4 km deep · 91 km away
  17. 2.28 km ESE of Willows, California · 15054 days ago · 14 km deep · 10 km away
  18. 2.18 km N of Princeton, California · 15054 days ago · 0 km deep · 8 km away
  19. 2.37 km SW of Colusa, California · 15056 days ago · 15 km deep · 44 km away
  20. 1.95 km SSE of Clear Lake Riviera, California · 15056 days ago · 1 km deep · 92 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc51840. Read Thu, Sep 24, 2026, 11:44 AM UTC.