California earthquakes

M1.9 earthquake 6 km W of Cobb, California

A magnitude 1.9 earthquake struck 6 km W of Cobb, California on Mon, Apr 8, 1985, 12:06 AM PST (08:06 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.7 10 km WSW of Meridian, 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
1.9 (md), micro
Local time
UTC
1985-04-08 08:06:44 UTC
Depth
-0.3 km (-0.2 mi), shallow
Epicenter
38.820° 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 0.3 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
41°
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: 181 in the 60 days after this one and 122 in the 30 days before it.

After

  1. 2.15 km SW of Cobb, California · 15149 days ago · 1 km deep · 4 km away
  2. 1.76 km W of Cobb, California · 15148 days ago · 3 km deep · 0 km away
  3. 1.96 km W of Cobb, California · 15148 days ago · 3 km deep · 1 km away
  4. 2.26 km W of Cobb, California · 15148 days ago · 3 km deep · 1 km away
  5. 3.26 km WSW of Cobb, California · 15148 days ago · 4 km deep · 2 km away
  6. 2.16 km WSW of Cobb, California · 15148 days ago · 3 km deep · 2 km away
  7. 1.56 km WSW of Cobb, California · 15148 days ago · 4 km deep · 2 km away
  8. 1.513 km ESE of Hidden Valley Lake, California · 15148 days ago · 5 km deep · 34 km away
  9. 2.08 km WSW of Cobb, California · 15148 days ago · 4 km deep · 3 km away
  10. 1.67 km WSW of Cobb, California · 15148 days ago · 1 km deep · 2 km away
  11. 2.24 km SW of Cobb, California · 15147 days ago · 1 km deep · 5 km away
  12. 2.29 km WSW of Cobb, California · 15147 days ago · 1 km deep · 3 km away
  13. 2.67 km WSW of Cobb, California · 15145 days ago · 1 km deep · 2 km away
  14. 2.57 km WSW of Cobb, California · 15145 days ago · 1 km deep · 2 km away
  15. 3.45 km SW of Cobb, California · 15144 days ago · 1 km deep · 4 km away
  16. 2.55 km SW of Cobb, California · 15144 days ago · 1 km deep · 4 km away
  17. 1.61 km S of Cotati, California · 15144 days ago · 17 km deep · 57 km away
  18. 1.67 km WSW of Cobb, California · 15144 days ago · 3 km deep · 3 km away
  19. 1.75 km W of Cobb, California · 15143 days ago · 4 km deep · 1 km away
  20. 2.23 km SW of Cobb, California · 15143 days ago · 1 km deep · 5 km away
  21. 2.0Northern California · 15143 days ago · 1 km deep · 2 km away
  22. 2.08 km WSW of Cobb, California · 15143 days ago · 3 km deep · 2 km away
  23. 2.58 km WNW of Guinda, California · 15142 days ago · 2 km deep · 45 km away
  24. 2.47 km WNW of Guinda, California · 15142 days ago · 1 km deep · 46 km away
  25. 2.28 km WSW of Cobb, California · 15142 days ago · 0 km deep · 2 km away
  26. 1.918 km NE of Upper Lake, California · 15141 days ago · 7 km deep · 53 km away
  27. 2.38 km WSW of Cobb, California · 15141 days ago · 3 km deep · 2 km away
  28. 2.0Northern California · 15140 days ago · 1 km deep · 1 km away
  29. 2.07 km W of Cobb, California · 15139 days ago · 1 km deep · 1 km away
  30. 2.221 km WSW of Williams, California · 15139 days ago · 0 km deep · 47 km away
  31. 3.710 km WSW of Meridian, California · 15139 days ago · 18 km deep · 74 km away
  32. 2.29 km WSW of Meridian, California · 15139 days ago · 12 km deep · 76 km away
  33. 1.67 km WSW of Cobb, California · 15138 days ago · 0 km deep · 2 km away
  34. 1.611 km W of Cobb, California · 15138 days ago · -1 km deep · 5 km away
  35. 1.77 km W of Cobb, California · 15138 days ago · 0 km deep · 1 km away
  36. 2.57 km W of Cobb, California · 15138 days ago · 1 km deep · 1 km away
  37. 2.57 km W of Cobb, California · 15138 days ago · 1 km deep · 0 km away
  38. 1.67 km W of Cobb, California · 15138 days ago · 1 km deep · 1 km away
  39. 2.57 km W of Cobb, California · 15138 days ago · 1 km deep · 1 km away
  40. 2.014 km N of Upper Lake, California · 15138 days ago · 5 km deep · 54 km away
  41. 2.88 km NNE of Arbuckle, California · 15137 days ago · 3 km deep · 74 km away
  42. 2.322 km WSW of Williams, California · 15137 days ago · 3 km deep · 46 km away
  43. 1.57 km W of Cobb, California · 15136 days ago · 1 km deep · 1 km away
  44. 1.66 km W of Cobb, California · 15136 days ago · 3 km deep · 1 km away
  45. 1.68 km WSW of Cobb, California · 15136 days ago · 3 km deep · 2 km away
  46. 2.41 km SSW of Green Valley, California · 15136 days ago · 12 km deep · 85 km away
  47. 2.02 km S of Green Valley, California · 15136 days ago · 11 km deep · 86 km away
  48. 2.58 km WSW of Meridian, California · 15136 days ago · 12 km deep · 76 km away
  49. 1.64 km SW of Hopland, California · 15136 days ago · 5 km deep · 34 km away
  50. 2.37 km WSW of Cobb, California · 15134 days ago · 4 km deep · 3 km away
  51. 1.66 km W of Cobb, California · 15134 days ago · 1 km deep · 1 km away
  52. 1.78 km WSW of Cobb, California · 15134 days ago · 3 km deep · 2 km away
  53. 1.85 km NNW of Geyserville, California · 15133 days ago · 5 km deep · 13 km away
  54. 1.97 km WSW of Cobb, California · 15132 days ago · 2 km deep · 2 km away
  55. 1.97 km WSW of Cobb, California · 15131 days ago · 1 km deep · 2 km away
  56. 2.16 km W of Cobb, California · 15130 days ago · 3 km deep · 1 km away
  57. 2.06 km W of Cobb, California · 15130 days ago · 3 km deep · 1 km away
  58. 2.28 km WSW of Cobb, California · 15130 days ago · 3 km deep · 3 km away
  59. 1.76 km NE of Brooktrails, California · 15130 days ago · 6 km deep · 86 km away
  60. 1.7Northern California · 15129 days ago · 2 km deep · 2 km away

The first 60 of 181.

Before

  1. 1.78 km W of Cobb, California · 15149 days ago · 0 km deep · 1 km away
  2. 3.16 km W of Cobb, California · 15149 days ago · 4 km deep · 1 km away
  3. 2.55 km N of Windsor, California · 15149 days ago · 5 km deep · 25 km away
  4. 1.820 km WSW of Williams, California · 15150 days ago · 4 km deep · 48 km away
  5. 3.114 km N of Brooktrails, California · 15150 days ago · -1 km deep · 97 km away
  6. 1.75 km W of Cobb, California · 15150 days ago · 1 km deep · 1 km away
  7. 1.66 km WSW of Cobb, California · 15151 days ago · -1 km deep · 2 km away
  8. 2.15 km WSW of Cobb, California · 15151 days ago · 1 km deep · 2 km away
  9. 1.56 km WSW of Cobb, California · 15151 days ago · 0 km deep · 1 km away
  10. 1.72 km SSE of Clear Lake Riviera, California · 15151 days ago · 1 km deep · 15 km away
  11. 2.63 km SSE of Clear Lake Riviera, California · 15151 days ago · 2 km deep · 15 km away
  12. 2.09 km N of Upper Lake, California · 15151 days ago · 4 km deep · 48 km away
  13. 1.94 km W of Cobb, CA · 15151 days ago · 0 km deep · 3 km away
  14. 2.04 km NNW of Larkfield-Wikiup, California · 15151 days ago · 3 km deep · 30 km away
  15. 1.68 km W of Cobb, California · 15152 days ago · 1 km deep · 1 km away
  16. 2.27 km NNE of Elk Creek, California · 15152 days ago · 12 km deep · 97 km away
  17. 2.67 km WSW of Cobb, California · 15152 days ago · 0 km deep · 2 km away
  18. 1.94 km N of Larkfield-Wikiup, California · 15152 days ago · 3 km deep · 30 km away
  19. 1.97 km WSW of Cobb, California · 15152 days ago · 1 km deep · 2 km away
  20. 1.76 km W of Cobb, California · 15153 days ago · 3 km deep · 1 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc45636. Read Tue, Sep 29, 2026, 11:51 AM UTC.