California earthquakes

M1.9 earthquake 4 km S of Cobb, California

A magnitude 1.9 earthquake struck 4 km S of Cobb, California on Thu, Jan 6, 1983, 9:30 PM PST (05:30 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M3.2 9 km ESE of Boonville, 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.

Open the live map with earthquakes

The earthquake

Magnitude
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1983-01-07 05:30:45 UTC
Depth
0.9 km (0.6 mi), shallow
Epicenter
38.784° N, 122.726° 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
±0.12
Depth from
From location
Station coverage gap
60°
Stations used
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 139 in the 60 days after this one and 69 in the 30 days before it.

After

  1. 1.96 km ESE of Willits, California · 15977 days ago · 8 km deep · 83 km away
  2. 1.95 km W of Hopland, California · 15977 days ago · 6 km deep · 45 km away
  3. 1.65 km WSW of Cobb, California · 15977 days ago · -1 km deep · 5 km away
  4. 2.27 km WSW of Moskowite Corner, California · 15976 days ago · 13 km deep · 56 km away
  5. 2.05 km NE of Hopland, California · 15975 days ago · 5 km deep · 40 km away
  6. 2.14 km NNW of Redwood Valley, California · 15975 days ago · 7 km deep · 72 km away
  7. 1.87 km W of Cobb, California · 15975 days ago · 3 km deep · 8 km away
  8. 1.61 km SE of Clearlake, California · 15975 days ago · 3 km deep · 20 km away
  9. 2.05 km NE of Hopland, California · 15975 days ago · 5 km deep · 40 km away
  10. 1.84 km ENE of Willits, California · 15975 days ago · 7 km deep · 87 km away
  11. 1.812 km ESE of Hidden Valley Lake, California · 15974 days ago · 6 km deep · 26 km away
  12. 1.79 km SE of Hidden Valley Lake, California · 15974 days ago · 0 km deep · 21 km away
  13. 1.710 km W of Cobb, California · 15974 days ago · 4 km deep · 11 km away
  14. 1.79 km NW of Redwood Valley, California · 15973 days ago · -1 km deep · 77 km away
  15. 2.214 km NNE of Angwin, California · 15973 days ago · 9 km deep · 34 km away
  16. 2.921 km NE of Potter Valley, California · 15972 days ago · 6 km deep · 76 km away
  17. 1.821 km NE of Potter Valley, California · 15972 days ago · 7 km deep · 77 km away
  18. 1.611 km SE of Hidden Valley Lake, California · 15971 days ago · 3 km deep · 24 km away
  19. 1.68 km NNE of Brooktrails, California · 15970 days ago · 5 km deep · 98 km away
  20. 2.36 km W of Cobb, California · 15970 days ago · 3 km deep · 7 km away
  21. 1.88 km W of Cobb, California · 15969 days ago · 4 km deep · 9 km away
  22. 1.74 km W of Cobb, California · 15969 days ago · 2 km deep · 6 km away
  23. 2.021 km NNE of Potter Valley, California · 15969 days ago · 8 km deep · 81 km away
  24. 2.27 km W of Cobb, California · 15969 days ago · 2 km deep · 8 km away
  25. 1.94 km S of Cobb, California · 15968 days ago · 2 km deep · 1 km away
  26. 2.14 km WSW of Cobb, California · 15968 days ago · 2 km deep · 5 km away
  27. 1.66 km W of Cobb, California · 15968 days ago · 2 km deep · 7 km away
  28. 1.55 km WSW of Cobb, California · 15966 days ago · 0 km deep · 5 km away
  29. 2.15 km S of Cobb, California · 15966 days ago · 0 km deep · 1 km away
  30. 2.95 km WSW of Cobb, California · 15966 days ago · 0 km deep · 5 km away
  31. 1.97 km W of Cobb, California · 15965 days ago · 1 km deep · 8 km away
  32. 2.77 km W of Cobb, California · 15965 days ago · 3 km deep · 8 km away
  33. 2.85 km SW of Cobb, California · 15962 days ago · -1 km deep · 4 km away
  34. 1.624 km SE of Covelo, California · 15962 days ago · 14 km deep · 98 km away
  35. 1.96 km W of Cobb, California · 15961 days ago · 3 km deep · 7 km away
  36. 2.08 km WSW of Cobb, California · 15960 days ago · 2 km deep · 8 km away
  37. 1.9Northern California · 15960 days ago · 8 km deep · 83 km away
  38. 2.018 km NE of Nice, California · 15960 days ago · 8 km deep · 53 km away
  39. 2.3Northern California · 15960 days ago · 6 km deep · 47 km away
  40. 2.19 km ESE of Boonville, California · 15960 days ago · 5 km deep · 52 km away
  41. 3.29 km ESE of Boonville, California · 15960 days ago · 5 km deep · 52 km away
  42. 2.09 km ESE of Boonville, California · 15960 days ago · 6 km deep · 51 km away
  43. 1.513 km ESE of Hidden Valley Lake, California · 15959 days ago · 3 km deep · 27 km away
  44. 1.97 km E of Willits, California · 15959 days ago · 7 km deep · 84 km away
  45. 1.68 km ENE of Willits, California · 15958 days ago · 2 km deep · 87 km away
  46. 2.19 km WNW of Cobb, California · 15958 days ago · 1 km deep · 12 km away
  47. 1.96 km W of Cobb, California · 15956 days ago · 0 km deep · 7 km away
  48. 1.67 km WSW of Cobb, California · 15956 days ago · 0 km deep · 7 km away
  49. 2.411 km NW of Moskowite Corner, California · 15955 days ago · 8 km deep · 49 km away
  50. 1.77 km W of Cobb, California · 15954 days ago · 0 km deep · 7 km away
  51. 1.87 km W of Cobb, California · 15954 days ago · 0 km deep · 8 km away
  52. 1.95 km SW of Cobb, California · 15953 days ago · -1 km deep · 4 km away
  53. 2.09 km WSW of Cobb, California · 15953 days ago · 0 km deep · 8 km away
  54. 1.91 km WNW of Princeton, California · 15953 days ago · 22 km deep · 92 km away
  55. 1.623 km NE of Potter Valley, California · 15953 days ago · 10 km deep · 78 km away
  56. 2.35 km SW of Cobb, California · 15953 days ago · 0 km deep · 4 km away
  57. 1.520 km ENE of Potter Valley, California · 15953 days ago · 0 km deep · 69 km away
  58. 2.37 km W of Cobb, California · 15952 days ago · 5 km deep · 8 km away
  59. 1.526 km SSE of Covelo, California · 15952 days ago · -1 km deep · 95 km away
  60. 2.17 km WSW of Cobb, California · 15950 days ago · 0 km deep · 7 km away

The first 60 of 139.

Before

  1. 1.78 km E of Willits, California · 15978 days ago · 9 km deep · 83 km away
  2. 1.725 km SE of Covelo, California · 15978 days ago · 14 km deep · 97 km away
  3. 2.53 km NNE of Dixon, California · 15979 days ago · 30 km deep · 87 km away
  4. 1.77 km NW of Moskowite Corner, California · 15979 days ago · 2 km deep · 52 km away
  5. 1.65 km WNW of Redwood Valley, California · 15979 days ago · 7 km deep · 72 km away
  6. 1.713 km NNW of Moskowite Corner, California · 15979 days ago · 3 km deep · 48 km away
  7. 1.89 km N of Moskowite Corner, California · 15979 days ago · 10 km deep · 53 km away
  8. 2.25 km ENE of Willits, California · 15979 days ago · 3 km deep · 88 km away
  9. 1.67 km E of Willits, California · 15980 days ago · 7 km deep · 84 km away
  10. 1.77 km W of Cobb, California · 15980 days ago · 0 km deep · 8 km away
  11. 1.63 km SE of Calpella, California · 15982 days ago · 2 km deep · 61 km away
  12. 1.612 km NNW of Moskowite Corner, California · 15982 days ago · 2 km deep · 49 km away
  13. 2.74 km SSW of Willits, California · 15982 days ago · 4 km deep · 86 km away
  14. 1.75 km SW of Cobb, California · 15983 days ago · 0 km deep · 4 km away
  15. 1.65 km W of Cobb, California · 15983 days ago · 1 km deep · 6 km away
  16. 1.9Northern California · 15984 days ago · 0 km deep · 7 km away
  17. 2.38 km W of Cobb, California · 15984 days ago · 1 km deep · 8 km away
  18. 2.24 km NE of Talmage, California · 15985 days ago · 8 km deep · 55 km away
  19. 1.81 km E of Deer Park, California · 15985 days ago · 11 km deep · 37 km away
  20. 1.85 km NE of Willits, California · 15985 days ago · 3 km deep · 89 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1084138. Read Mon, Oct 5, 2026, 10:10 AM UTC.