California earthquakes

M2.1 earthquake 6 km WSW of Cobb, California

A magnitude 2.1 earthquake struck 6 km WSW of Cobb, California on Fri, Nov 25, 1983, 7:25 PM PST (03:25 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.4 14 km N of Brooktrails, 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
2.1 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1983-11-26 03:25:33 UTC
Depth
3.3 km (2.0 mi), shallow
Epicenter
38.802° N, 122.793° 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
±0.10
Depth from
From location
Station coverage gap
65°
Stations used
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 175 in the 60 days after this one and 116 in the 30 days before it.

After

  1. 1.66 km W of Cobb, California · 15650 days ago · 1 km deep · 2 km away
  2. 2.018 km NE of Upper Lake, California · 15650 days ago · 7 km deep · 55 km away
  3. 2.57 km WSW of Cobb, California · 15650 days ago · 1 km deep · 1 km away
  4. 1.78 km W of Cobb, California · 15650 days ago · -1 km deep · 2 km away
  5. 1.67 km WSW of Cobb, California · 15650 days ago · 1 km deep · 1 km away
  6. 2.013 km NNE of Brooktrails, California · 15650 days ago · 2 km deep · 97 km away
  7. 1.67 km W of Cobb, California · 15650 days ago · 1 km deep · 3 km away
  8. 2.4Northern California · 15650 days ago · 1 km deep · 3 km away
  9. 1.78 km W of Cobb, California · 15650 days ago · 1 km deep · 3 km away
  10. 1.88 km W of Cobb, California · 15650 days ago · -1 km deep · 3 km away
  11. 3.06 km WSW of Cobb, California · 15650 days ago · 3 km deep · 0 km away
  12. 2.23 km S of Clear Lake Riviera, California · 15649 days ago · 3 km deep · 14 km away
  13. 2.66 km W of Cobb, California · 15649 days ago · 0 km deep · 2 km away
  14. 2.26 km W of Cobb, California · 15649 days ago · 1 km deep · 2 km away
  15. 1.62 km ESE of North Lakeport, California · 15648 days ago · 18 km deep · 32 km away
  16. 2.16 km W of Cobb, California · 15648 days ago · 3 km deep · 2 km away
  17. 2.36 km W of Cobb, California · 15648 days ago · 3 km deep · 2 km away
  18. 1.67 km W of Cobb, California · 15648 days ago · 3 km deep · 2 km away
  19. 2.16 km WSW of Cobb, California · 15648 days ago · 1 km deep · 1 km away
  20. 1.919 km ENE of Potter Valley, California · 15648 days ago · 7 km deep · 63 km away
  21. 1.51 km NNW of Calpella, California · 15648 days ago · 6 km deep · 61 km away
  22. 1.67 km W of Cobb, California · 15647 days ago · 0 km deep · 3 km away
  23. 1.612 km NNW of Moskowite Corner, California · 15646 days ago · 18 km deep · 57 km away
  24. 1.57 km W of Cobb, California · 15645 days ago · 3 km deep · 1 km away
  25. 2.68 km E of Willits, California · 15645 days ago · 4 km deep · 77 km away
  26. 1.67 km W of Cobb, California · 15645 days ago · 3 km deep · 2 km away
  27. 1.63 km ESE of Moskowite Corner, California · 15645 days ago · 7 km deep · 69 km away
  28. 2.13 km SE of Calpella, California · 15645 days ago · 2 km deep · 57 km away
  29. 2.12 km SE of Calpella, California · 15644 days ago · 5 km deep · 57 km away
  30. 1.620 km NE of Potter Valley, California · 15644 days ago · 10 km deep · 74 km away
  31. 1.817 km E of Lower Lake, California · 15643 days ago · 3 km deep · 36 km away
  32. 1.95 km WSW of Cobb, California · 15643 days ago · -1 km deep · 1 km away
  33. 2.04 km SW of Cobb, California · 15643 days ago · 1 km deep · 2 km away
  34. 2.05 km WSW of Cobb, California · 15643 days ago · 0 km deep · 1 km away
  35. 1.97 km E of Penngrove, California · 15643 days ago · 4 km deep · 60 km away
  36. 1.77 km W of Cobb, California · 15642 days ago · 2 km deep · 2 km away
  37. 1.94 km W of Cobb, California · 15642 days ago · -1 km deep · 3 km away
  38. 1.76 km W of Cobb, California · 15642 days ago · 2 km deep · 3 km away
  39. 1.66 km W of Cobb, California · 15642 days ago · 3 km deep · 2 km away
  40. 2.45 km E of Willits, California · 15641 days ago · 4 km deep · 81 km away
  41. 2.45 km ENE of Willits, California · 15641 days ago · 2 km deep · 81 km away
  42. 1.56 km W of Cobb, California · 15641 days ago · 3 km deep · 2 km away
  43. 1.76 km W of Cobb, California · 15641 days ago · 3 km deep · 2 km away
  44. 1.77 km WSW of Cobb, California · 15641 days ago · 1 km deep · 1 km away
  45. 1.67 km W of Cobb, California · 15640 days ago · 3 km deep · 2 km away
  46. 1.57 km E of Willits, California · 15640 days ago · 9 km deep · 79 km away
  47. 1.57 km W of Cobb, California · 15639 days ago · 3 km deep · 1 km away
  48. 1.76 km W of Cobb, California · 15639 days ago · 3 km deep · 2 km away
  49. 1.714 km NNE of Angwin, California · 15639 days ago · 9 km deep · 37 km away
  50. 1.68 km W of Cobb, California · 15639 days ago · 0 km deep · 3 km away
  51. 2.76 km WSW of Cobb, California · 15639 days ago · 0 km deep · 1 km away
  52. 1.6Northern California · 15639 days ago · 1 km deep · 10 km away
  53. 1.77 km WSW of Cobb, California · 15638 days ago · 0 km deep · 1 km away
  54. 1.87 km WSW of Cobb, California · 15638 days ago · -1 km deep · 1 km away
  55. 1.918 km E of Potter Valley, California · 15638 days ago · 8 km deep · 61 km away
  56. 2.47 km WSW of Cobb, California · 15637 days ago · 0 km deep · 1 km away
  57. 2.28 km WSW of Cobb, California · 15637 days ago · 3 km deep · 2 km away
  58. 1.77 km WSW of Cobb, California · 15637 days ago · 0 km deep · 1 km away
  59. 2.67 km WSW of Cobb, California · 15637 days ago · 1 km deep · 1 km away
  60. 1.77 km WSW of Cobb, California · 15636 days ago · 1 km deep · 1 km away

The first 60 of 175.

Before

  1. 1.65 km WSW of Cobb, California · 15651 days ago · 1 km deep · 1 km away
  2. 1.77 km W of Cobb, California · 15651 days ago · 3 km deep · 2 km away
  3. 2.96 km W of Cobb, California · 15652 days ago · 3 km deep · 2 km away
  4. 1.67 km WSW of Cobb, California · 15652 days ago · 2 km deep · 2 km away
  5. 1.75 km W of Glen Ellen, California · 15652 days ago · 4 km deep · 52 km away
  6. 1.75 km WSW of Cobb, California · 15653 days ago · 1 km deep · 1 km away
  7. 1.66 km NNE of Cobb, California · 15653 days ago · 0 km deep · 12 km away
  8. 1.64 km NNW of Cobb, California · 15653 days ago · 1 km deep · 7 km away
  9. 1.616 km ENE of Potter Valley, California · 15654 days ago · 11 km deep · 66 km away
  10. 1.84 km ENE of Brooktrails, California · 15654 days ago · 9 km deep · 86 km away
  11. 1.67 km W of Cobb, California · 15654 days ago · 1 km deep · 1 km away
  12. 2.45 km W of Glen Ellen, California · 15654 days ago · 6 km deep · 52 km away
  13. 2.36 km W of Cobb, California · 15656 days ago · 3 km deep · 2 km away
  14. 1.67 km WSW of Cobb, California · 15656 days ago · 0 km deep · 1 km away
  15. 2.415 km SE of Laytonville, California · 15656 days ago · 0 km deep · 100 km away
  16. 1.76 km W of Cobb, California · 15656 days ago · 3 km deep · 2 km away
  17. 2.319 km NNE of Upper Lake, California · 15656 days ago · 7 km deep · 57 km away
  18. 1.57 km WSW of Cobb, California · 15657 days ago · 2 km deep · 1 km away
  19. 1.86 km W of Cobb, California · 15657 days ago · 3 km deep · 1 km away
  20. 2.15 km SW of Cobb, California · 15657 days ago · 0 km deep · 3 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1107484. Read Thu, Oct 1, 2026, 9:44 AM UTC.