California earthquakes

M2.0 earthquake 22 km WSW of Williams, California

A magnitude 2.0 earthquake struck 22 km WSW of Williams, California on Sat, Aug 17, 1985, 12:31 PM PDT (19:31 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.6 7 km W of Cobb, California. This one was a foreshock.

Williams 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
2.0 (md), micro
Local time
UTC
1985-08-17 19:31:18 UTC
Depth
2.9 km (1.8 mi), shallow
Epicenter
39.095° N, 122.400° 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, 7.0 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
198°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 185 in the 60 days after this one and 89 in the 30 days before it.

After

  1. 1.613 km ENE of Clearlake Oaks, California · 15018 days ago · 5 km deep · 11 km away
  2. 2.03 km W of Cobb, California · 15018 days ago · 0 km deep · 43 km away
  3. 1.52 km NNW of Clearlake, California · 15018 days ago · 2 km deep · 24 km away
  4. 1.97 km W of Cobb, California · 15017 days ago · 3 km deep · 48 km away
  5. 1.910 km SE of Hopland, California · 15016 days ago · 29 km deep · 58 km away
  6. 1.87 km W of Cobb, California · 15016 days ago · 3 km deep · 47 km away
  7. 1.86 km W of Cobb, California · 15016 days ago · 3 km deep · 46 km away
  8. 1.66 km NNE of Cloverdale, California · 15016 days ago · 5 km deep · 57 km away
  9. 1.66 km WNW of Cobb, California · 15016 days ago · 1 km deep · 45 km away
  10. 2.09 km SSE of Willits, California · 15015 days ago · 6 km deep · 83 km away
  11. 2.35 km W of Cobb, California · 15015 days ago · -1 km deep · 45 km away
  12. 2.26 km NW of Cobb, California · 15015 days ago · -1 km deep · 42 km away
  13. 2.85 km W of Cobb, California · 15015 days ago · 1 km deep · 44 km away
  14. 1.65 km WSW of Cobb, California · 15014 days ago · 1 km deep · 46 km away
  15. 1.76 km NE of Brooktrails, California · 15014 days ago · 7 km deep · 90 km away
  16. 1.55 km SW of Cobb, California · 15014 days ago · 1 km deep · 47 km away
  17. 1.55 km WSW of Cobb, California · 15013 days ago · 0 km deep · 47 km away
  18. 1.85 km WSW of Cobb, California · 15013 days ago · 0 km deep · 47 km away
  19. 2.07 km W of Cobb, California · 15013 days ago · 3 km deep · 47 km away
  20. 1.98 km WSW of Cobb, California · 15012 days ago · 3 km deep · 48 km away
  21. 2.28 km WSW of Cobb, California · 15012 days ago · 3 km deep · 48 km away
  22. 2.93 km NNE of Clearlake, California · 15011 days ago · 1 km deep · 22 km away
  23. 1.63 km NNE of Clearlake, California · 15011 days ago · -1 km deep · 22 km away
  24. 1.97 km WSW of Cobb, California · 15011 days ago · 4 km deep · 48 km away
  25. 2.05 km WNW of Cobb, California · 15011 days ago · 1 km deep · 44 km away
  26. 1.96 km WSW of Cobb, California · 15011 days ago · 3 km deep · 47 km away
  27. 1.63 km N of Clearlake, California · 15011 days ago · -1 km deep · 22 km away
  28. 1.69 km WSW of Cobb, California · 15011 days ago · 1 km deep · 49 km away
  29. 1.66 km NNE of Hopland, California · 15010 days ago · 0 km deep · 60 km away
  30. 2.19 km NNW of Kenwood, California · 15009 days ago · 6 km deep · 70 km away
  31. 1.67 km WSW of Cobb, California · 15009 days ago · 0 km deep · 47 km away
  32. 2.113 km NNW of Moskowite Corner, California · 15008 days ago · 0 km deep · 61 km away
  33. 1.86 km WSW of Cobb, California · 15008 days ago · 0 km deep · 47 km away
  34. 1.86 km WSW of Cobb, California · 15008 days ago · 1 km deep · 47 km away
  35. 2.20 km S of Brooktrails, California · 15008 days ago · -1 km deep · 93 km away
  36. 1.58 km W of Cobb, California · 15007 days ago · 1 km deep · 47 km away
  37. 2.013 km NW of Moskowite Corner, California · 15007 days ago · 0 km deep · 62 km away
  38. 2.513 km NW of Moskowite Corner, California · 15007 days ago · 0 km deep · 63 km away
  39. 2.015 km NNW of Moskowite Corner, California · 15007 days ago · 15 km deep · 59 km away
  40. 1.614 km NNW of Moskowite Corner, California · 15007 days ago · 3 km deep · 61 km away
  41. 1.58 km NNW of Moskowite Corner, California · 15007 days ago · 6 km deep · 66 km away
  42. 1.913 km NNW of Moskowite Corner, California · 15006 days ago · 2 km deep · 61 km away
  43. 2.25 km SW of Cobb, California · 15006 days ago · 0 km deep · 47 km away
  44. 2.07 km W of Cobb, California · 15006 days ago · 3 km deep · 47 km away
  45. 2.520 km WSW of Williams, California · 15006 days ago · 2 km deep · 3 km away
  46. 2.220 km WSW of Williams, California · 15006 days ago · 0 km deep · 2 km away
  47. 2.021 km WSW of Williams, California · 15006 days ago · 2 km deep · 2 km away
  48. 1.94 km W of Cobb, California · 15005 days ago · 1 km deep · 45 km away
  49. 1.96 km SW of Cobb, California · 15005 days ago · 0 km deep · 47 km away
  50. 1.84 km W of Cobb, California · 15005 days ago · 0 km deep · 45 km away
  51. 1.96 km W of Cobb, California · 15004 days ago · 2 km deep · 47 km away
  52. 2.26 km W of Cobb, California · 15004 days ago · 0 km deep · 47 km away
  53. 2.420 km WSW of Williams, California · 15003 days ago · 2 km deep · 2 km away
  54. 2.620 km WSW of Williams, California · 15003 days ago · 2 km deep · 3 km away
  55. 1.89 km ESE of Willits, California · 15002 days ago · 8 km deep · 80 km away
  56. 1.922 km WSW of Williams, California · 15002 days ago · 2 km deep · 1 km away
  57. 2.33 km SW of Cobb, California · 15002 days ago · 1 km deep · 45 km away
  58. 1.78 km WSW of Cobb, California · 15002 days ago · 3 km deep · 48 km away
  59. 1.95 km SW of Cobb, California · 15002 days ago · 0 km deep · 47 km away
  60. 1.614 km ENE of Clearlake Oaks, California · 15002 days ago · 10 km deep · 10 km away

The first 60 of 185.

Before

  1. 2.16 km W of Cobb, California · 15019 days ago · 1 km deep · 46 km away
  2. 2.08 km WSW of Cobb, California · 15019 days ago · 4 km deep · 49 km away
  3. 2.05 km SW of Cobb, California · 15020 days ago · 2 km deep · 47 km away
  4. 1.69 km NE of Hopland, California · 15020 days ago · 6 km deep · 56 km away
  5. 1.90 km ESE of Redwood Valley, California · 15021 days ago · 6 km deep · 72 km away
  6. 2.16 km WSW of Cobb, California · 15021 days ago · 4 km deep · 47 km away
  7. 1.67 km WSW of Cobb, California · 15021 days ago · 0 km deep · 48 km away
  8. 2.67 km W of Cobb, California · 15021 days ago · 3 km deep · 47 km away
  9. 2.67 km WSW of Cobb, California · 15021 days ago · 0 km deep · 48 km away
  10. 1.56 km W of Cobb, California · 15022 days ago · 3 km deep · 46 km away
  11. 2.19 km WSW of Cobb, California · 15022 days ago · 1 km deep · 49 km away
  12. 2.39 km SE of Rancho Tehama Reserve, California · 15023 days ago · 5 km deep · 97 km away
  13. 1.77 km W of Cobb, California · 15023 days ago · 0 km deep · 47 km away
  14. 1.84 km S of Hamilton City, California · 15023 days ago · 5 km deep · 75 km away
  15. 2.19 km E of Hidden Valley Lake, California · 15023 days ago · 7 km deep · 32 km away
  16. 1.85 km WNW of Cobb, California · 15023 days ago · 2 km deep · 43 km away
  17. 1.94 km W of Cobb, California · 15025 days ago · 0 km deep · 45 km away
  18. 1.713 km N of Brooktrails, California · 15025 days ago · 6 km deep · 98 km away
  19. 1.58 km WSW of Cobb, California · 15025 days ago · 4 km deep · 48 km away
  20. 2.16 km W of Cobb, California · 15025 days ago · 0 km deep · 45 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc53195. Read Tue, Sep 29, 2026, 10:52 PM UTC.