California earthquakes

M1.7 earthquake 6 km WSW of Cobb, California

A magnitude 1.7 earthquake struck 6 km WSW of Cobb, California on Mon, Jul 29, 1985, 3:12 PM PDT (22:12 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M4.0 5 km SW of Cobb, California. 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
1.7 (md), micro
Local time
UTC
1985-07-29 22:12:07 UTC
Depth
-0.1 km (-0.0 mi), shallow
Epicenter
38.799° N, 122.786° 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 0.2 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
63°
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 183 in the 60 days after this one and 89 in the 30 days before it.

After

  1. 1.610 km W of Cobb, California · 15030 days ago · 2 km deep · 5 km away
  2. 1.78 km W of Cobb, California · 15030 days ago · 0 km deep · 4 km away
  3. 1.74 km E of Cloverdale, California · 15030 days ago · 22 km deep · 15 km away
  4. 1.70 km SSE of Redwood Valley, California · 15029 days ago · 6 km deep · 63 km away
  5. 1.811 km NE of Potter Valley, California · 15029 days ago · 1 km deep · 70 km away
  6. 1.60 km WSW of Redwood Valley, California · 15029 days ago · 7 km deep · 63 km away
  7. 2.80 km NNE of Redwood Valley, California · 15029 days ago · 6 km deep · 63 km away
  8. 1.50 km SW of Redwood Valley, California · 15029 days ago · 4 km deep · 63 km away
  9. 1.55 km W of Cobb, California · 15029 days ago · 0 km deep · 3 km away
  10. 1.76 km W of Cobb, California · 15029 days ago · 3 km deep · 2 km away
  11. 1.65 km WSW of Hopland, California · 15028 days ago · 5 km deep · 37 km away
  12. 2.021 km NNE of Upper Lake, California · 15027 days ago · 6 km deep · 62 km away
  13. 1.86 km E of Calpella, California · 15027 days ago · 5 km deep · 57 km away
  14. 1.53 km SSW of Cobb, California · 15026 days ago · 1 km deep · 3 km away
  15. 2.87 km W of Cobb, California · 15026 days ago · 3 km deep · 3 km away
  16. 2.26 km WSW of Cobb, California · 15024 days ago · 0 km deep · 1 km away
  17. 3.27 km W of Cobb, California · 15024 days ago · 1 km deep · 3 km away
  18. 2.14 km WSW of Cobb, California · 15023 days ago · 1 km deep · 1 km away
  19. 1.910 km SW of Williams, California · 15023 days ago · 15 km deep · 57 km away
  20. 1.66 km WSW of Cobb, California · 15023 days ago · 0 km deep · 1 km away
  21. 2.34 km NNE of Boonville, California · 15022 days ago · 4 km deep · 56 km away
  22. 1.66 km SW of Cobb, California · 15022 days ago · 0 km deep · 2 km away
  23. 3.25 km SW of Cobb, California · 15022 days ago · 2 km deep · 2 km away
  24. 4.05 km SW of Cobb, California · 15022 days ago · -1 km deep · 1 km away
  25. 2.15 km SW of Cobb, California · 15022 days ago · 0 km deep · 1 km away
  26. 2.14 km NW of Redwood Valley, California · 15021 days ago · 5 km deep · 68 km away
  27. 1.64 km WSW of Cobb, California · 15021 days ago · 1 km deep · 1 km away
  28. 2.08 km SSW of Colusa, California · 15021 days ago · 6 km deep · 74 km away
  29. 2.16 km W of Cobb, California · 15020 days ago · 3 km deep · 2 km away
  30. 1.96 km W of Cobb, California · 15020 days ago · 1 km deep · 3 km away
  31. 2.16 km W of Cobb, California · 15020 days ago · 0 km deep · 3 km away
  32. 1.58 km WSW of Cobb, California · 15020 days ago · 4 km deep · 2 km away
  33. 1.713 km N of Brooktrails, California · 15020 days ago · 6 km deep · 99 km away
  34. 1.94 km W of Cobb, California · 15020 days ago · 0 km deep · 2 km away
  35. 1.85 km WNW of Cobb, California · 15018 days ago · 2 km deep · 6 km away
  36. 2.19 km E of Hidden Valley Lake, California · 15018 days ago · 7 km deep · 29 km away
  37. 1.77 km W of Cobb, California · 15017 days ago · 0 km deep · 3 km away
  38. 2.19 km WSW of Cobb, California · 15017 days ago · 1 km deep · 3 km away
  39. 1.56 km W of Cobb, California · 15017 days ago · 3 km deep · 3 km away
  40. 2.67 km WSW of Cobb, California · 15016 days ago · 0 km deep · 2 km away
  41. 2.67 km W of Cobb, California · 15016 days ago · 3 km deep · 3 km away
  42. 1.67 km WSW of Cobb, California · 15016 days ago · 0 km deep · 2 km away
  43. 2.16 km WSW of Cobb, California · 15016 days ago · 4 km deep · 1 km away
  44. 1.90 km ESE of Redwood Valley, California · 15015 days ago · 6 km deep · 63 km away
  45. 1.69 km NE of Hopland, California · 15015 days ago · 6 km deep · 34 km away
  46. 2.05 km SW of Cobb, California · 15015 days ago · 2 km deep · 1 km away
  47. 2.08 km WSW of Cobb, California · 15014 days ago · 4 km deep · 2 km away
  48. 2.16 km W of Cobb, California · 15013 days ago · 1 km deep · 3 km away
  49. 2.022 km WSW of Williams, California · 15013 days ago · 3 km deep · 47 km away
  50. 1.613 km ENE of Clearlake Oaks, California · 15013 days ago · 5 km deep · 36 km away
  51. 2.03 km W of Cobb, California · 15012 days ago · 0 km deep · 4 km away
  52. 1.52 km NNW of Clearlake, California · 15012 days ago · 2 km deep · 24 km away
  53. 1.97 km W of Cobb, California · 15011 days ago · 3 km deep · 3 km away
  54. 1.910 km SE of Hopland, California · 15011 days ago · 29 km deep · 24 km away
  55. 1.87 km W of Cobb, California · 15011 days ago · 3 km deep · 3 km away
  56. 1.86 km W of Cobb, California · 15011 days ago · 3 km deep · 3 km away
  57. 1.66 km NNE of Cloverdale, California · 15011 days ago · 5 km deep · 18 km away
  58. 1.66 km WNW of Cobb, California · 15010 days ago · 1 km deep · 4 km away
  59. 2.09 km SSE of Willits, California · 15010 days ago · 6 km deep · 74 km away
  60. 2.35 km W of Cobb, California · 15010 days ago · -1 km deep · 3 km away

The first 60 of 183.

Before

  1. 3.35 km WSW of Cobb, California · 15032 days ago · 0 km deep · 0 km away
  2. 2.15 km WSW of Cobb, California · 15032 days ago · 0 km deep · 0 km away
  3. 1.67 km W of Cobb, California · 15032 days ago · 3 km deep · 3 km away
  4. 1.95 km SW of Cobb, California · 15033 days ago · 0 km deep · 2 km away
  5. 2.027 km N of Potter Valley, California · 15034 days ago · 4 km deep · 90 km away
  6. 1.67 km W of Cobb, California · 15034 days ago · 1 km deep · 3 km away
  7. 1.910 km S of Comptche, California · 15035 days ago · 5 km deep · 81 km away
  8. 1.67 km W of Cobb, California · 15035 days ago · 0 km deep · 4 km away
  9. 1.68 km W of Cobb, California · 15035 days ago · 1 km deep · 3 km away
  10. 2.27 km W of Cobb, California · 15035 days ago · 1 km deep · 3 km away
  11. 1.87 km WSW of Cobb, California · 15035 days ago · 1 km deep · 1 km away
  12. 1.97 km WSW of Cobb, California · 15035 days ago · 1 km deep · 2 km away
  13. 2.18 km W of Cobb, California · 15035 days ago · 0 km deep · 3 km away
  14. 3.57 km WSW of Cobb, California · 15035 days ago · 3 km deep · 2 km away
  15. 3.57 km WSW of Cobb, California · 15035 days ago · 2 km deep · 1 km away
  16. 1.66 km W of Cobb, California · 15036 days ago · 3 km deep · 2 km away
  17. 1.78 km SW of Cobb, California · 15036 days ago · 3 km deep · 2 km away
  18. 1.76 km WNW of Cobb, California · 15036 days ago · 1 km deep · 5 km away
  19. 1.79 km ESE of Hidden Valley Lake, California · 15036 days ago · 7 km deep · 29 km away
  20. 1.97 km W of Cobb, California · 15036 days ago · 1 km deep · 3 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc51938. Read Thu, Sep 24, 2026, 1:30 PM UTC.