California earthquakes

M1.7 earthquake 10 km W of Cobb, California

A magnitude 1.7 earthquake struck 10 km W of Cobb, California on Sun, Jan 9, 1983, 7:59 PM PST (03:59 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M2.2 14 km NNE of Angwin, 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
1983-01-10 03:59:37 UTC
Depth
3.9 km (2.4 mi), shallow
Epicenter
38.827° N, 122.846° 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 0.5 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
125°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 133 in the 60 days after this one and 41 in the 30 days before it.

After

  1. 1.79 km NW of Redwood Valley, California · 15960 days ago · -1 km deep · 67 km away
  2. 2.214 km NNE of Angwin, California · 15960 days ago · 9 km deep · 45 km away
  3. 2.921 km NE of Potter Valley, California · 15959 days ago · 6 km deep · 70 km away
  4. 1.821 km NE of Potter Valley, California · 15959 days ago · 7 km deep · 70 km away
  5. 1.611 km SE of Hidden Valley Lake, California · 15958 days ago · 3 km deep · 35 km away
  6. 1.68 km NNE of Brooktrails, California · 15957 days ago · 5 km deep · 88 km away
  7. 2.36 km W of Cobb, California · 15957 days ago · 3 km deep · 4 km away
  8. 1.88 km W of Cobb, California · 15957 days ago · 4 km deep · 3 km away
  9. 1.74 km W of Cobb, California · 15956 days ago · 2 km deep · 6 km away
  10. 2.021 km NNE of Potter Valley, California · 15956 days ago · 8 km deep · 75 km away
  11. 2.27 km W of Cobb, California · 15956 days ago · 2 km deep · 4 km away
  12. 1.94 km S of Cobb, California · 15956 days ago · 2 km deep · 12 km away
  13. 2.14 km WSW of Cobb, California · 15955 days ago · 2 km deep · 7 km away
  14. 1.66 km W of Cobb, California · 15955 days ago · 2 km deep · 5 km away
  15. 1.55 km WSW of Cobb, California · 15953 days ago · 0 km deep · 6 km away
  16. 2.15 km S of Cobb, California · 15953 days ago · 0 km deep · 11 km away
  17. 2.95 km WSW of Cobb, California · 15953 days ago · 0 km deep · 6 km away
  18. 1.97 km W of Cobb, California · 15952 days ago · 1 km deep · 4 km away
  19. 2.77 km W of Cobb, California · 15952 days ago · 3 km deep · 3 km away
  20. 2.85 km SW of Cobb, California · 15950 days ago · -1 km deep · 8 km away
  21. 1.624 km SE of Covelo, California · 15949 days ago · 14 km deep · 91 km away
  22. 1.96 km W of Cobb, California · 15948 days ago · 3 km deep · 4 km away
  23. 2.08 km WSW of Cobb, California · 15948 days ago · 2 km deep · 3 km away
  24. 1.9Northern California · 15948 days ago · 8 km deep · 76 km away
  25. 2.018 km NE of Nice, California · 15947 days ago · 8 km deep · 49 km away
  26. 2.3Northern California · 15947 days ago · 6 km deep · 58 km away
  27. 2.19 km ESE of Boonville, California · 15947 days ago · 5 km deep · 40 km away
  28. 3.29 km ESE of Boonville, California · 15947 days ago · 5 km deep · 40 km away
  29. 2.09 km ESE of Boonville, California · 15947 days ago · 6 km deep · 40 km away
  30. 1.513 km ESE of Hidden Valley Lake, California · 15946 days ago · 3 km deep · 38 km away
  31. 1.97 km E of Willits, California · 15946 days ago · 7 km deep · 75 km away
  32. 1.68 km ENE of Willits, California · 15946 days ago · 2 km deep · 77 km away
  33. 2.19 km WNW of Cobb, California · 15946 days ago · 1 km deep · 5 km away
  34. 1.96 km W of Cobb, California · 15944 days ago · 0 km deep · 4 km away
  35. 1.67 km WSW of Cobb, California · 15943 days ago · 0 km deep · 4 km away
  36. 2.411 km NW of Moskowite Corner, California · 15943 days ago · 8 km deep · 60 km away
  37. 1.77 km W of Cobb, California · 15941 days ago · 0 km deep · 4 km away
  38. 1.87 km W of Cobb, California · 15941 days ago · 0 km deep · 3 km away
  39. 1.95 km SW of Cobb, California · 15941 days ago · -1 km deep · 7 km away
  40. 2.09 km WSW of Cobb, California · 15941 days ago · 0 km deep · 4 km away
  41. 1.91 km WNW of Princeton, California · 15940 days ago · 22 km deep · 96 km away
  42. 1.623 km NE of Potter Valley, California · 15940 days ago · 10 km deep · 72 km away
  43. 2.35 km SW of Cobb, California · 15940 days ago · 0 km deep · 7 km away
  44. 1.520 km ENE of Potter Valley, California · 15940 days ago · 0 km deep · 63 km away
  45. 2.37 km W of Cobb, California · 15939 days ago · 5 km deep · 4 km away
  46. 1.526 km SSE of Covelo, California · 15939 days ago · -1 km deep · 88 km away
  47. 2.111 km SSE of Laytonville, California · 15938 days ago · 5 km deep · 99 km away
  48. 2.17 km WSW of Cobb, California · 15937 days ago · 0 km deep · 4 km away
  49. 1.913 km NNW of Moskowite Corner, California · 15937 days ago · 13 km deep · 59 km away
  50. 2.610 km WSW of Cobb, California · 15937 days ago · 1 km deep · 3 km away
  51. 1.62 km E of Calpella, California · 15937 days ago · 2 km deep · 53 km away
  52. 1.57 km E of Willits, California · 15937 days ago · 8 km deep · 75 km away
  53. 2.17 km W of Cobb, California · 15936 days ago · 1 km deep · 4 km away
  54. 1.76 km ENE of Willits, California · 15936 days ago · 8 km deep · 76 km away
  55. 2.49 km SE of Comptche, California · 15936 days ago · -1 km deep · 71 km away
  56. 1.75 km WSW of Cobb, California · 15935 days ago · 0 km deep · 6 km away
  57. 2.06 km W of Cobb, California · 15934 days ago · 3 km deep · 5 km away
  58. 1.96 km W of Cobb, California · 15934 days ago · 3 km deep · 4 km away
  59. 1.66 km W of Cobb, California · 15933 days ago · 3 km deep · 4 km away
  60. 2.09 km WSW of Cobb, California · 15932 days ago · 2 km deep · 3 km away

The first 60 of 133.

Before

  1. 1.79 km SE of Hidden Valley Lake, California · 15962 days ago · 0 km deep · 33 km away
  2. 1.812 km ESE of Hidden Valley Lake, California · 15962 days ago · 6 km deep · 37 km away
  3. 1.84 km ENE of Willits, California · 15962 days ago · 7 km deep · 77 km away
  4. 2.05 km NE of Hopland, California · 15962 days ago · 5 km deep · 29 km away
  5. 1.61 km SE of Clearlake, California · 15962 days ago · 3 km deep · 24 km away
  6. 1.87 km W of Cobb, California · 15962 days ago · 3 km deep · 3 km away
  7. 2.14 km NNW of Redwood Valley, California · 15962 days ago · 7 km deep · 63 km away
  8. 2.05 km NE of Hopland, California · 15962 days ago · 5 km deep · 29 km away
  9. 2.27 km WSW of Moskowite Corner, California · 15963 days ago · 13 km deep · 67 km away
  10. 1.65 km WSW of Cobb, California · 15964 days ago · -1 km deep · 7 km away
  11. 1.95 km W of Hopland, California · 15964 days ago · 6 km deep · 33 km away
  12. 1.96 km ESE of Willits, California · 15964 days ago · 8 km deep · 73 km away
  13. 1.94 km S of Cobb, California · 15964 days ago · 1 km deep · 11 km away
  14. 1.78 km E of Willits, California · 15965 days ago · 9 km deep · 73 km away
  15. 1.725 km SE of Covelo, California · 15965 days ago · 14 km deep · 90 km away
  16. 2.53 km NNE of Dixon, California · 15966 days ago · 30 km deep · 99 km away
  17. 1.77 km NW of Moskowite Corner, California · 15966 days ago · 2 km deep · 64 km away
  18. 1.65 km WNW of Redwood Valley, California · 15966 days ago · 7 km deep · 62 km away
  19. 1.713 km NNW of Moskowite Corner, California · 15966 days ago · 3 km deep · 59 km away
  20. 1.89 km N of Moskowite Corner, California · 15966 days ago · 10 km deep · 64 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1084991. Read Tue, Sep 22, 2026, 4:50 PM UTC.