California earthquakes

M2.3 earthquake 5 km SW of Cobb, California

A magnitude 2.3 earthquake struck 5 km SW of Cobb, California on Fri, Jan 3, 1986, 8:43 PM PST (04:43 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M2.6 6 km W 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
2.3 (md), micro
Local time
UTC
1986-01-04 04:43:32 UTC
Depth
0.9 km (0.6 mi), shallow
Epicenter
38.790° N, 122.776° 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 0.1 km horizontally, 0.2 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
37°
Stations used
28

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 0 in the 30 days before it.

After

  1. 1.64 km WSW of Cobb, California · 14864 days ago · 1 km deep · 2 km away
  2. 2.06 km W of Cobb, California · 14864 days ago · 2 km deep · 3 km away
  3. 1.68 km W of Cobb, California · 14864 days ago · 4 km deep · 5 km away
  4. 2.66 km W of Cobb, California · 14864 days ago · 1 km deep · 3 km away
  5. 1.76 km W of Cobb, California · 14863 days ago · 2 km deep · 4 km away
  6. 1.86 km W of Cobb, California · 14863 days ago · 3 km deep · 4 km away
  7. 1.54 km WSW of Cobb, California · 14863 days ago · 1 km deep · 2 km away
  8. 1.67 km W of Cobb, California · 14862 days ago · 3 km deep · 4 km away
  9. 1.65 km W of Cobb, California · 14862 days ago · 2 km deep · 4 km away
  10. 1.66 km W of Cobb, California · 14862 days ago · 3 km deep · 4 km away
  11. 1.84 km SW of Cobb, California · 14862 days ago · 0 km deep · 1 km away
  12. 2.29 km WSW of Cobb, California · 14861 days ago · 1 km deep · 4 km away
  13. 2.26 km W of Cobb, California · 14861 days ago · 3 km deep · 4 km away
  14. 1.55 km SW of Cobb, California · 14861 days ago · 0 km deep · 0 km away
  15. 1.612 km NNE of Brooktrails, California · 14860 days ago · 4 km deep · 98 km away
  16. 1.55 km SW of Cobb, California · 14860 days ago · 2 km deep · 0 km away
  17. 1.76 km WSW of Cobb, California · 14860 days ago · 3 km deep · 2 km away
  18. 2.39 km SW of Hopland, California · 14860 days ago · -1 km deep · 39 km away
  19. 2.99 km SW of Hopland, California · 14860 days ago · -1 km deep · 39 km away
  20. 1.79 km W of Cobb, California · 14860 days ago · 1 km deep · 6 km away
  21. 2.97 km E of Santa Rosa, California · 14860 days ago · 5 km deep · 42 km away
  22. 2.34 km WSW of Cobb, California · 14860 days ago · 1 km deep · 2 km away
  23. 1.810 km NW of Moskowite Corner, California · 14859 days ago · 4 km deep · 53 km away
  24. 1.76 km SW of Cobb, California · 14859 days ago · 0 km deep · 1 km away
  25. 1.97 km E of Santa Rosa, California · 14859 days ago · 5 km deep · 42 km away
  26. 2.98 km WSW of Cobb, California · 14859 days ago · 4 km deep · 3 km away
  27. 3.110 km SSE of Green Valley, California · 14859 days ago · 3 km deep · 90 km away
  28. 1.86 km NW of Philo, California · 14859 days ago · 4 km deep · 72 km away
  29. 2.06 km W of Cobb, California · 14859 days ago · 3 km deep · 4 km away
  30. 1.58 km W of Cobb, California · 14858 days ago · -1 km deep · 6 km away
  31. 2.26 km SW of Cobb, California · 14858 days ago · 1 km deep · 0 km away
  32. 2.75 km SW of Cobb, California · 14858 days ago · 1 km deep · 0 km away
  33. 1.95 km SW of Cobb, California · 14858 days ago · 0 km deep · 1 km away
  34. 1.65 km W of Cobb, California · 14858 days ago · 0 km deep · 4 km away
  35. 1.74 km SW of Cobb, California · 14857 days ago · 0 km deep · 1 km away
  36. 1.620 km N of Potter Valley, California · 14857 days ago · 6 km deep · 85 km away
  37. 1.95 km SW of Cobb, California · 14857 days ago · -1 km deep · 0 km away
  38. 2.17 km W of Cobb, California · 14856 days ago · 0 km deep · 5 km away
  39. 2.99 km W of Anchor Bay, California · 14855 days ago · 4 km deep · 78 km away
  40. 2.06 km WSW of Cobb, California · 14855 days ago · 1 km deep · 3 km away
  41. 2.46 km W of Cobb, California · 14855 days ago · 3 km deep · 4 km away
  42. 2.37 km W of Cobb, California · 14855 days ago · 3 km deep · 4 km away
  43. 1.911 km N of Cloverdale, California · 14855 days ago · 3 km deep · 23 km away
  44. 1.95 km WSW of Cobb, California · 14854 days ago · -1 km deep · 1 km away
  45. 2.54 km N of Guerneville, California · 14854 days ago · 3 km deep · 33 km away
  46. 1.76 km W of Cobb, California · 14854 days ago · 2 km deep · 3 km away
  47. 2.18 km W of Cobb, California · 14854 days ago · 0 km deep · 6 km away
  48. 1.85 km SW of Cobb, California · 14854 days ago · 1 km deep · 0 km away
  49. 2.17 km WSW of Cobb, California · 14853 days ago · 3 km deep · 2 km away
  50. 2.421 km ENE of Clearlake, California · 14853 days ago · 0 km deep · 43 km away
  51. 1.87 km W of Cobb, California · 14853 days ago · 2 km deep · 4 km away
  52. 2.57 km WSW of Cobb, California · 14852 days ago · 1 km deep · 3 km away
  53. 1.76 km SW of Cobb, California · 14852 days ago · 1 km deep · 1 km away
  54. 1.67 km W of Cobb, California · 14852 days ago · 3 km deep · 4 km away
  55. 1.77 km W of Cobb, California · 14851 days ago · 3 km deep · 4 km away
  56. 1.64 km WNW of Cobb, California · 14851 days ago · 0 km deep · 4 km away
  57. 1.67 km SW of Cloverdale, California · 14850 days ago · 28 km deep · 26 km away
  58. 1.77 km WSW of Cobb, California · 14850 days ago · 2 km deep · 3 km away
  59. 1.56 km WSW of Cobb, California · 14850 days ago · 3 km deep · 2 km away
  60. 2.17 km W of Cobb, CA · 14850 days ago · 0 km deep · 5 km away

The first 60 of 175.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc62790. Read Tue, Sep 22, 2026, 9:38 PM UTC.