California earthquakes

M1.7 earthquake 6 km W of Cobb, California

A magnitude 1.7 earthquake struck 6 km W of Cobb, California on Sun, Jan 12, 1986, 8:35 AM PST (16:35 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M2.2 6 km SW 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
1.7 (md), micro
Local time
UTC
1986-01-12 16:35:21 UTC
Depth
1.5 km (0.9 mi), shallow
Epicenter
38.815° N, 122.803° 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, 0.3 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
78°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 172 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.26 km SW of Cobb, California · 14858 days ago · 1 km deep · 4 km away
  2. 2.75 km SW of Cobb, California · 14858 days ago · 1 km deep · 4 km away
  3. 1.95 km SW of Cobb, California · 14858 days ago · 0 km deep · 4 km away
  4. 1.65 km W of Cobb, California · 14857 days ago · 0 km deep · 2 km away
  5. 1.74 km SW of Cobb, California · 14857 days ago · 0 km deep · 5 km away
  6. 1.620 km N of Potter Valley, California · 14857 days ago · 6 km deep · 82 km away
  7. 1.95 km SW of Cobb, California · 14857 days ago · -1 km deep · 3 km away
  8. 2.17 km W of Cobb, California · 14856 days ago · 0 km deep · 2 km away
  9. 2.99 km W of Anchor Bay, California · 14855 days ago · 4 km deep · 76 km away
  10. 2.06 km WSW of Cobb, California · 14855 days ago · 1 km deep · 1 km away
  11. 2.46 km W of Cobb, California · 14855 days ago · 3 km deep · 1 km away
  12. 2.37 km W of Cobb, California · 14854 days ago · 3 km deep · 1 km away
  13. 1.911 km N of Cloverdale, California · 14854 days ago · 3 km deep · 19 km away
  14. 1.95 km WSW of Cobb, California · 14854 days ago · -1 km deep · 3 km away
  15. 2.54 km N of Guerneville, California · 14854 days ago · 3 km deep · 34 km away
  16. 1.76 km W of Cobb, California · 14854 days ago · 2 km deep · 1 km away
  17. 2.18 km W of Cobb, California · 14854 days ago · 0 km deep · 2 km away
  18. 1.85 km SW of Cobb, California · 14853 days ago · 1 km deep · 4 km away
  19. 2.17 km WSW of Cobb, California · 14853 days ago · 3 km deep · 2 km away
  20. 2.421 km ENE of Clearlake, California · 14853 days ago · 0 km deep · 43 km away
  21. 1.87 km W of Cobb, California · 14852 days ago · 2 km deep · 0 km away
  22. 2.57 km WSW of Cobb, California · 14852 days ago · 1 km deep · 1 km away
  23. 1.76 km SW of Cobb, California · 14852 days ago · 1 km deep · 4 km away
  24. 1.67 km W of Cobb, California · 14851 days ago · 3 km deep · 0 km away
  25. 1.77 km W of Cobb, California · 14850 days ago · 3 km deep · 1 km away
  26. 1.64 km WNW of Cobb, California · 14850 days ago · 0 km deep · 3 km away
  27. 1.67 km SW of Cloverdale, California · 14850 days ago · 28 km deep · 25 km away
  28. 1.77 km WSW of Cobb, California · 14850 days ago · 2 km deep · 2 km away
  29. 1.56 km WSW of Cobb, California · 14850 days ago · 3 km deep · 1 km away
  30. 2.17 km W of Cobb, CA · 14849 days ago · 0 km deep · 2 km away
  31. 2.07 km W of Cobb, California · 14849 days ago · -1 km deep · 2 km away
  32. 2.25 km SW of Cobb, California · 14849 days ago · 0 km deep · 5 km away
  33. 3.35 km SW of Cobb, California · 14849 days ago · 0 km deep · 4 km away
  34. 2.23 km SSW of Cobb, California · 14849 days ago · 1 km deep · 5 km away
  35. 1.66 km W of Cobb, California · 14848 days ago · 3 km deep · 0 km away
  36. 1.74 km W of Cobb, California · 14846 days ago · -1 km deep · 3 km away
  37. 1.87 km WSW of Cobb, California · 14846 days ago · 0 km deep · 1 km away
  38. 1.54 km WSW of Cobb, California · 14846 days ago · 0 km deep · 3 km away
  39. 1.75 km WNW of Cobb, California · 14845 days ago · 1 km deep · 3 km away
  40. 2.52 km SE of Clear Lake Riviera, California · 14845 days ago · 2 km deep · 17 km away
  41. 2.27 km WSW of Cobb, California · 14845 days ago · 1 km deep · 2 km away
  42. 2.57 km WSW of Cobb, California · 14844 days ago · 1 km deep · 1 km away
  43. 1.66 km WSW of Cobb, California · 14844 days ago · 1 km deep · 1 km away
  44. 2.18 km W of Cobb, California · 14843 days ago · 1 km deep · 1 km away
  45. 2.35 km SW of Cobb, California · 14843 days ago · 0 km deep · 5 km away
  46. 1.79 km NE of Cloverdale, California · 14842 days ago · 3 km deep · 15 km away
  47. 2.04 km W of Cobb, California · 14842 days ago · 1 km deep · 3 km away
  48. 1.67 km W of Cobb, California · 14842 days ago · 4 km deep · 1 km away
  49. 1.94 km WSW of Cobb, California · 14842 days ago · 1 km deep · 3 km away
  50. 1.610 km WSW of Cobb, California · 14842 days ago · 1 km deep · 4 km away
  51. 2.58 km WSW of Cobb, California · 14842 days ago · 3 km deep · 2 km away
  52. 1.56 km W of Cobb, California · 14842 days ago · 3 km deep · 1 km away
  53. 1.64 km W of Hopland, California · 14842 days ago · 4 km deep · 36 km away
  54. 3.34 km W of Cobb, California · 14840 days ago · 0 km deep · 2 km away
  55. 1.65 km WNW of Cobb, California · 14840 days ago · 1 km deep · 3 km away
  56. 1.67 km WSW of Cobb, California · 14840 days ago · 1 km deep · 1 km away
  57. 1.68 km W of Cobb, California · 14840 days ago · 1 km deep · 2 km away
  58. 2.29 km WSW of Cobb, California · 14839 days ago · 2 km deep · 3 km away
  59. 2.318 km NE of Potter Valley, California · 14839 days ago · 5 km deep · 72 km away
  60. 2.09 km SSE of Guinda, California · 14839 days ago · 4 km deep · 57 km away

The first 60 of 172.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc66192. Read Tue, Sep 22, 2026, 4:05 PM UTC.