California earthquakes

M1.9 earthquake 4 km W of Cobb, California

A magnitude 1.9 earthquake struck 4 km W of Cobb, California on Sat, Jul 6, 1985, 12:44 PM PDT (19:44 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M2.4 9 km SE of Suisun, 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
1.9 (md), micro
Local time
UTC
1985-07-06 19:44:04 UTC
Depth
2.4 km (1.5 mi), shallow
Epicenter
38.822° N, 122.769° 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 0.6 km horizontally, 4.0 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
144°
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 181 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.98 km WSW of Meridian, California · 15051 days ago · 4 km deep · 74 km away
  2. 1.74 km W of Cobb, California · 15050 days ago · 0 km deep · 1 km away
  3. 1.76 km W of Cobb, California · 15050 days ago · 1 km deep · 3 km away
  4. 1.84 km WSW of Cobb, California · 15050 days ago · 1 km deep · 2 km away
  5. 2.49 km SE of Suisun, California · 15049 days ago · 2 km deep · 100 km away
  6. 2.36 km WSW of Eldridge, California · 15048 days ago · 7 km deep · 58 km away
  7. 1.728 km NE of Potter Valley, California · 15048 days ago · 8 km deep · 77 km away
  8. 2.56 km WSW of Eldridge, California · 15048 days ago · 7 km deep · 58 km away
  9. 2.57 km SSE of Suisun, California · 15048 days ago · 0 km deep · 98 km away
  10. 1.75 km SW of Cobb, California · 15047 days ago · 0 km deep · 4 km away
  11. 1.73 km SW of Cobb, California · 15047 days ago · 1 km deep · 4 km away
  12. 2.16 km WSW of Eldridge, California · 15047 days ago · 6 km deep · 58 km away
  13. 2.36 km ESE of Suisun, California · 15047 days ago · 5 km deep · 97 km away
  14. 1.7Northern California · 15047 days ago · 6 km deep · 58 km away
  15. 3.37 km W of Cobb, California · 15047 days ago · 0 km deep · 4 km away
  16. 1.77 km W of Cobb, California · 15047 days ago · 1 km deep · 4 km away
  17. 1.59 km W of Cobb, California · 15047 days ago · -1 km deep · 6 km away
  18. 1.87 km W of Cobb, California · 15047 days ago · 1 km deep · 4 km away
  19. 1.88 km W of Cobb, California · 15047 days ago · 1 km deep · 4 km away
  20. 1.65 km SSE of Cobb, California · 15046 days ago · 16 km deep · 8 km away
  21. 2.27 km SSW of Colusa, California · 15046 days ago · 15 km deep · 72 km away
  22. 1.58 km WSW of Cobb, California · 15045 days ago · 3 km deep · 5 km away
  23. 1.66 km WSW of Cobb, California · 15045 days ago · 3 km deep · 3 km away
  24. 1.810 km S of Kelseyville, California · 15045 days ago · 4 km deep · 9 km away
  25. 2.024 km NNE of Potter Valley, California · 15044 days ago · 4 km deep · 82 km away
  26. 2.110 km S of Kelseyville, California · 15044 days ago · 4 km deep · 9 km away
  27. 2.34 km WSW of Cobb, California · 15043 days ago · 1 km deep · 2 km away
  28. 1.67 km WSW of Cobb, California · 15043 days ago · 1 km deep · 4 km away
  29. 1.86 km W of Cobb, California · 15043 days ago · 3 km deep · 2 km away
  30. 2.26 km W of Cobb, California · 15043 days ago · 3 km deep · 3 km away
  31. 1.96 km WSW of Cobb, California · 15043 days ago · 3 km deep · 3 km away
  32. 2.57 km W of Cobb, California · 15042 days ago · 3 km deep · 3 km away
  33. 1.76 km W of Cobb, California · 15042 days ago · 3 km deep · 2 km away
  34. 2.06 km WSW of Cobb, California · 15041 days ago · 1 km deep · 3 km away
  35. 1.86 km WSW of Cobb, California · 15041 days ago · 1 km deep · 3 km away
  36. 2.85 km W of Cobb, California · 15041 days ago · 0 km deep · 1 km away
  37. 1.85 km W of Cobb, California · 15041 days ago · 0 km deep · 1 km away
  38. 1.67 km WSW of Cobb, California · 15040 days ago · 1 km deep · 4 km away
  39. 1.713 km NE of Hidden Valley Lake, California · 15040 days ago · 14 km deep · 29 km away
  40. 1.87 km NW of Cobb, California · 15039 days ago · 4 km deep · 6 km away
  41. 1.67 km SE of Willits, California · 15039 days ago · 6 km deep · 75 km away
  42. 1.66 km W of Glen Ellen, California · 15039 days ago · 3 km deep · 52 km away
  43. 2.18 km W of Cobb, California · 15037 days ago · -1 km deep · 4 km away
  44. 1.97 km W of Cobb, California · 15035 days ago · 1 km deep · 4 km away
  45. 1.79 km ESE of Hidden Valley Lake, California · 15035 days ago · 7 km deep · 28 km away
  46. 1.76 km WNW of Cobb, California · 15034 days ago · 1 km deep · 3 km away
  47. 1.78 km SW of Cobb, California · 15034 days ago · 3 km deep · 5 km away
  48. 1.66 km W of Cobb, California · 15034 days ago · 3 km deep · 2 km away
  49. 3.57 km WSW of Cobb, California · 15034 days ago · 2 km deep · 4 km away
  50. 3.57 km WSW of Cobb, California · 15034 days ago · 3 km deep · 3 km away
  51. 2.18 km W of Cobb, California · 15034 days ago · 0 km deep · 4 km away
  52. 1.97 km WSW of Cobb, California · 15034 days ago · 1 km deep · 4 km away
  53. 1.87 km WSW of Cobb, California · 15034 days ago · 1 km deep · 3 km away
  54. 2.27 km W of Cobb, California · 15034 days ago · 1 km deep · 4 km away
  55. 1.68 km W of Cobb, California · 15034 days ago · 1 km deep · 4 km away
  56. 1.67 km W of Cobb, California · 15034 days ago · 0 km deep · 3 km away
  57. 1.910 km S of Comptche, California · 15034 days ago · 5 km deep · 81 km away
  58. 1.67 km W of Cobb, California · 15033 days ago · 1 km deep · 4 km away
  59. 2.027 km N of Potter Valley, California · 15033 days ago · 4 km deep · 88 km away
  60. 1.95 km SW of Cobb, California · 15031 days ago · 0 km deep · 4 km away

The first 60 of 181.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1129521. Read Wed, Sep 23, 2026, 3:50 AM UTC.