California earthquakes

M1.7 earthquake 7 km W of Cobb, California

A magnitude 1.7 earthquake struck 7 km W of Cobb, California on Thu, Oct 28, 1982, 7:37 AM PDT (14:37 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M3.5 6 km WNW of Williams, 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
1982-10-28 14:37:17 UTC
Depth
1.5 km (0.9 mi), shallow
Epicenter
38.811° N, 122.808° 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, 0.4 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
48°
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: 143 in the 60 days after this one and 49 in the 30 days before it.

After

  1. 2.37 km W of Cobb, California · 16041 days ago · 1 km deep · 1 km away
  2. 1.78 km WSW of Cobb, California · 16041 days ago · -1 km deep · 2 km away
  3. 1.85 km SW of Cobb, California · 16040 days ago · -1 km deep · 5 km away
  4. 1.76 km W of Cobb, California · 16040 days ago · 1 km deep · 1 km away
  5. 1.622 km ENE of Potter Valley, California · 16039 days ago · 11 km deep · 67 km away
  6. 2.96 km W of Cobb, California · 16039 days ago · 1 km deep · 1 km away
  7. 2.46 km W of Cobb, California · 16039 days ago · 1 km deep · 1 km away
  8. 1.76 km W of Cobb, California · 16038 days ago · 3 km deep · 1 km away
  9. 2.06 km W of Cobb, California · 16038 days ago · -1 km deep · 2 km away
  10. 1.76 km W of Cobb, California · 16038 days ago · -1 km deep · 2 km away
  11. 2.13 km SSW of Green Valley, California · 16035 days ago · 11 km deep · 86 km away
  12. 1.79 km NW of Princeton, California · 16034 days ago · 13 km deep · 94 km away
  13. 3.23 km W of Moskowite Corner, California · 16034 days ago · 8 km deep · 64 km away
  14. 1.97 km W of Cobb, California · 16034 days ago · 1 km deep · 0 km away
  15. 1.56 km SW of Cobb, California · 16033 days ago · 3 km deep · 4 km away
  16. 2.28 km WSW of Cobb, California · 16033 days ago · 0 km deep · 1 km away
  17. 1.77 km WSW of Cobb, California · 16032 days ago · 0 km deep · 0 km away
  18. 2.06 km W of Cobb, California · 16032 days ago · 1 km deep · 1 km away
  19. 1.66 km W of Cobb, California · 16032 days ago · 2 km deep · 1 km away
  20. 1.612 km ESE of Hidden Valley Lake, California · 16029 days ago · 3 km deep · 33 km away
  21. 2.55 km SW of Cobb, California · 16029 days ago · -1 km deep · 4 km away
  22. 3.35 km WSW of Cobb, California · 16029 days ago · 0 km deep · 3 km away
  23. 1.65 km SW of Cobb, California · 16029 days ago · 0 km deep · 4 km away
  24. 1.6Northern California · 16028 days ago · -1 km deep · 2 km away
  25. 2.16 km NNW of Redwood Valley, California · 16027 days ago · 8 km deep · 67 km away
  26. 2.86 km W of Cobb, California · 16027 days ago · 3 km deep · 2 km away
  27. 2.13 km SE of Larkfield-Wikiup, California · 16027 days ago · 3 km deep · 37 km away
  28. 1.56 km WNW of Cobb, California · 16027 days ago · 0 km deep · 3 km away
  29. 1.67 km WSW of Cobb, California · 16026 days ago · -1 km deep · 2 km away
  30. 1.87 km W of Cobb, California · 16025 days ago · 0 km deep · 1 km away
  31. 1.57 km W of Cobb, California · 16025 days ago · 0 km deep · 2 km away
  32. 1.816 km NE of Upper Lake, California · 16025 days ago · 0 km deep · 52 km away
  33. 1.86 km W of Cobb, California · 16025 days ago · 2 km deep · 1 km away
  34. 2.06 km W of Cobb, California · 16025 days ago · 2 km deep · 1 km away
  35. 2.24 km WSW of Cobb, California · 16024 days ago · 0 km deep · 3 km away
  36. 1.72 km NW of Princeton, California · 16023 days ago · 16 km deep · 96 km away
  37. 1.56 km WSW of Cobb, California · 16022 days ago · 0 km deep · 2 km away
  38. 1.78 km WSW of Cobb, California · 16022 days ago · -1 km deep · 2 km away
  39. 1.66 km W of Cobb, California · 16022 days ago · 0 km deep · 1 km away
  40. 2.016 km NE of Upper Lake, California · 16021 days ago · 1 km deep · 52 km away
  41. 1.67 km WSW of Cobb, California · 16021 days ago · 1 km deep · 0 km away
  42. 1.58 km ENE of Willits, California · 16021 days ago · 9 km deep · 79 km away
  43. 2.04 km ESE of Clearlake Oaks, California · 16021 days ago · 1 km deep · 27 km away
  44. 1.57 km SSW of Calistoga, California · 16020 days ago · 5 km deep · 36 km away
  45. 1.921 km ENE of Potter Valley, California · 16019 days ago · 10 km deep · 64 km away
  46. 1.76 km WSW of Cobb, California · 16019 days ago · 0 km deep · 1 km away
  47. 1.814 km SSE of Laytonville, California · 16018 days ago · 6 km deep · 100 km away
  48. 2.46 km WSW of Cobb, California · 16018 days ago · -1 km deep · 1 km away
  49. 1.96 km WSW of Cobb, California · 16018 days ago · -1 km deep · 3 km away
  50. 1.66 km W of Cobb, California · 16017 days ago · 0 km deep · 3 km away
  51. 1.53 km NNE of Clearlake, California · 16017 days ago · 1 km deep · 26 km away
  52. 1.76 km SW of Cobb, California · 16017 days ago · 0 km deep · 4 km away
  53. 1.67 km ESE of Santa Rosa, California · 16017 days ago · 8 km deep · 46 km away
  54. 1.55 km WSW of Cobb, California · 16016 days ago · 0 km deep · 1 km away
  55. 1.65 km W of Cobb, California · 16015 days ago · 1 km deep · 2 km away
  56. 1.66 km WSW of Cobb, California · 16015 days ago · 0 km deep · 1 km away
  57. 1.97 km WSW of Cobb, California · 16015 days ago · -1 km deep · 1 km away
  58. 1.66 km W of Cobb, California · 16014 days ago · 3 km deep · 2 km away
  59. 1.66 km SW of Hopland, California · 16014 days ago · 4 km deep · 35 km away
  60. 2.25 km ESE of Santa Rosa, California · 16014 days ago · 7 km deep · 46 km away

The first 60 of 143.

Before

  1. 1.519 km NE of Upper Lake, California · 16043 days ago · 12 km deep · 54 km away
  2. 2.34 km S of Cobb, California · 16043 days ago · 2 km deep · 8 km away
  3. 2.4Northern California · 16043 days ago · 5 km deep · 44 km away
  4. 2.02 km SW of Geyserville, California · 16044 days ago · -1 km deep · 17 km away
  5. 1.710 km ESE of Hidden Valley Lake, California · 16044 days ago · 6 km deep · 32 km away
  6. 1.74 km S of Cobb, California · 16044 days ago · 0 km deep · 8 km away
  7. 1.518 km ENE of Potter Valley, California · 16044 days ago · 4 km deep · 64 km away
  8. 2.34 km S of Cobb, California · 16045 days ago · 2 km deep · 8 km away
  9. 1.66 km W of Cobb, California · 16045 days ago · 1 km deep · 2 km away
  10. 1.56 km W of Cobb, California · 16047 days ago · -1 km deep · 1 km away
  11. 2.06 km W of Cobb, California · 16047 days ago · 2 km deep · 2 km away
  12. 1.94 km WSW of Cobb, California · 16047 days ago · 1 km deep · 3 km away
  13. 1.624 km SE of Covelo, California · 16047 days ago · 5 km deep · 93 km away
  14. 2.08 km WSW of Cobb, California · 16048 days ago · 0 km deep · 2 km away
  15. 1.76 km E of Geyserville, California · 16048 days ago · 6 km deep · 11 km away
  16. 1.66 km S of Calistoga, California · 16048 days ago · 6 km deep · 38 km away
  17. 2.2near the coast of Northern California · 16048 days ago · 7 km deep · 78 km away
  18. 2.08 km ESE of Willits, California · 16049 days ago · 2 km deep · 74 km away
  19. 1.67 km WSW of Cobb, California · 16049 days ago · 3 km deep · 1 km away
  20. 1.821 km NNE of Potter Valley, California · 16049 days ago · 7 km deep · 78 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1081052. Read Mon, Sep 28, 2026, 7:46 PM UTC.