California earthquakes

M1.6 earthquake 8 km W of Cobb, California

A magnitude 1.6 earthquake struck 8 km W of Cobb, California on Mon, Dec 16, 1985, 3:51 AM PST (11:51 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M2.1 0 km SE of Redwood Valley, 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
1.6 (md), micro
Local time
UTC
1985-12-16 11:51:51 UTC
Depth
0.7 km (0.4 mi), shallow
Epicenter
38.836° N, 122.815° 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
46°
Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 174 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.66 km WNW of Cobb, California · 14878 days ago · 1 km deep · 2 km away
  2. 1.57 km W of Cobb, California · 14878 days ago · 2 km deep · 1 km away
  3. 1.65 km SW of Cobb, California · 14877 days ago · 0 km deep · 6 km away
  4. 1.64 km S of Cobb, California · 14877 days ago · 1 km deep · 10 km away
  5. 1.64 km S of Cobb, California · 14877 days ago · 2 km deep · 10 km away
  6. 2.10 km SE of Redwood Valley, California · 14876 days ago · 5 km deep · 58 km away
  7. 1.95 km W of Cobb, California · 14876 days ago · 1 km deep · 3 km away
  8. 2.38 km W of Cobb, California · 14876 days ago · 1 km deep · 1 km away
  9. 1.67 km WSW of Cobb, California · 14876 days ago · 3 km deep · 3 km away
  10. 1.72 km WSW of Occidental, California · 14875 days ago · 2 km deep · 50 km away
  11. 2.06 km W of Cobb, California · 14875 days ago · 3 km deep · 2 km away
  12. 1.75 km WSW of Cobb, California · 14875 days ago · 0 km deep · 5 km away
  13. 1.66 km W of Cobb, California · 14875 days ago · 1 km deep · 2 km away
  14. 2.35 km SW of Cobb, California · 14875 days ago · 1 km deep · 6 km away
  15. 2.74 km WSW of Cobb, California · 14875 days ago · 1 km deep · 6 km away
  16. 2.45 km WSW of Cobb, California · 14875 days ago · 1 km deep · 4 km away
  17. 2.04 km SSW of Cobb, California · 14874 days ago · 0 km deep · 9 km away
  18. 1.65 km WNW of Cobb, California · 14874 days ago · 2 km deep · 3 km away
  19. 2.07 km W of Cobb, California · 14873 days ago · 3 km deep · 2 km away
  20. 2.06 km W of Cobb, California · 14872 days ago · 3 km deep · 2 km away
  21. 2.96 km W of Cobb, California · 14872 days ago · 0 km deep · 2 km away
  22. 2.46 km W of Cobb, California · 14872 days ago · 1 km deep · 2 km away
  23. 2.35 km SW of Cobb, California · 14872 days ago · 1 km deep · 6 km away
  24. 2.98 km WSW of Cobb, California · 14872 days ago · 0 km deep · 3 km away
  25. 1.68 km WSW of Cobb, California · 14872 days ago · 0 km deep · 3 km away
  26. 2.06 km WSW of Cobb, California · 14871 days ago · 0 km deep · 5 km away
  27. 1.75 km SW of Cobb, California · 14871 days ago · 0 km deep · 6 km away
  28. 2.010 km NNE of Hopland, California · 14870 days ago · 6 km deep · 33 km away
  29. 1.66 km W of Cobb, California · 14869 days ago · 3 km deep · 2 km away
  30. 1.612 km NE of Angwin, California · 14869 days ago · 11 km deep · 43 km away
  31. 2.16 km SW of Cobb, California · 14868 days ago · -1 km deep · 6 km away
  32. 1.716 km NNE of Upper Lake, California · 14868 days ago · 6 km deep · 51 km away
  33. 2.18 km ENE of Lower Lake, California · 14868 days ago · 0 km deep · 28 km away
  34. 1.919 km ENE of Potter Valley, California · 14868 days ago · 6 km deep · 62 km away
  35. 1.625 km SE of Covelo, California · 14867 days ago · 4 km deep · 89 km away
  36. 1.74 km NW of Redwood Valley, California · 14867 days ago · 5 km deep · 63 km away
  37. 2.45 km NE of Rohnert Park, California · 14867 days ago · 5 km deep · 54 km away
  38. 1.71 km E of Calpella, California · 14867 days ago · 6 km deep · 54 km away
  39. 3.68 km WSW of Kelseyville, California · 14866 days ago · 4 km deep · 14 km away
  40. 1.58 km WNW of Cobb, California · 14866 days ago · 6 km deep · 0 km away
  41. 1.94 km NW of Redwood Valley, California · 14866 days ago · -1 km deep · 63 km away
  42. 1.64 km SE of Larkfield-Wikiup, California · 14865 days ago · 12 km deep · 40 km away
  43. 2.55 km SW of Cobb, California · 14865 days ago · 0 km deep · 7 km away
  44. 1.64 km WSW of Cobb, California · 14864 days ago · 1 km deep · 5 km away
  45. 3.04 km WSW of Cobb, California · 14864 days ago · 1 km deep · 5 km away
  46. 1.69 km W of Cobb, California · 14864 days ago · 0 km deep · 3 km away
  47. 1.64 km WSW of Cobb, California · 14864 days ago · 1 km deep · 5 km away
  48. 2.06 km W of Cobb, California · 14864 days ago · 2 km deep · 3 km away
  49. 1.68 km W of Cobb, California · 14864 days ago · 4 km deep · 2 km away
  50. 2.66 km W of Cobb, California · 14864 days ago · 1 km deep · 3 km away
  51. 1.76 km W of Cobb, California · 14863 days ago · 2 km deep · 3 km away
  52. 1.86 km W of Cobb, California · 14863 days ago · 3 km deep · 2 km away
  53. 1.54 km WSW of Cobb, California · 14862 days ago · 1 km deep · 5 km away
  54. 1.67 km W of Cobb, California · 14862 days ago · 3 km deep · 3 km away
  55. 1.65 km W of Cobb, California · 14862 days ago · 2 km deep · 3 km away
  56. 1.66 km W of Cobb, California · 14862 days ago · 3 km deep · 2 km away
  57. 1.84 km SW of Cobb, California · 14862 days ago · 0 km deep · 6 km away
  58. 2.29 km WSW of Cobb, California · 14861 days ago · 1 km deep · 4 km away
  59. 2.26 km W of Cobb, California · 14861 days ago · 3 km deep · 2 km away
  60. 1.55 km SW of Cobb, California · 14860 days ago · 0 km deep · 6 km away

The first 60 of 174.

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc61600. Read Tue, Sep 22, 2026, 8:27 PM UTC.