California earthquakes

M1.5 earthquake 6 km W of Cobb, California

A magnitude 1.5 earthquake struck 6 km W of Cobb, California on Wed, Oct 31, 1990, 6:08 PM PST (02:08 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.8 5 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
1.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-11-01 02:08:20 UTC
Depth
-0.4 km (-0.3 mi), shallow
Epicenter
38.821° N, 122.797° 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, 0.7 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
54°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 179 in the 60 days after this one and 78 in the 30 days before it.

After

  1. 1.64 km SW of Cobb, California · 13121 days ago · 0 km deep · 5 km away
  2. 2.06 km WSW of Cobb, California · 13121 days ago · 1 km deep · 2 km away
  3. 1.69 km SW of Cloverdale, California · 13121 days ago · 1 km deep · 27 km away
  4. 2.84 km NE of Point Arena, California · 13120 days ago · -1 km deep · 75 km away
  5. 1.64 km W of Cobb, California · 13120 days ago · 0 km deep · 2 km away
  6. 1.912 km WSW of Willows, California · 13119 days ago · 5 km deep · 85 km away
  7. 1.89 km W of Cobb, California · 13119 days ago · 0 km deep · 3 km away
  8. 2.49 km W of Cobb, California · 13119 days ago · 1 km deep · 3 km away
  9. 2.39 km W of Cobb, California · 13119 days ago · 0 km deep · 3 km away
  10. 1.77 km W of Cobb, California · 13118 days ago · 3 km deep · 1 km away
  11. 1.64 km WSW of Cobb, California · 13117 days ago · 1 km deep · 2 km away
  12. 1.76 km W of Cobb, California · 13117 days ago · 1 km deep · 0 km away
  13. 1.92 km SW of Cobb, California · 13117 days ago · 2 km deep · 5 km away
  14. 2.07 km NE of Hidden Valley Lake, California · 13117 days ago · 12 km deep · 26 km away
  15. 1.84 km WSW of Cobb, California · 13117 days ago · 0 km deep · 2 km away
  16. 1.77 km S of Cobb, California · 13116 days ago · 1 km deep · 10 km away
  17. 1.65 km W of Glen Ellen, California · 13116 days ago · 9 km deep · 54 km away
  18. 1.87 km W of Cobb, California · 13116 days ago · 3 km deep · 1 km away
  19. 1.86 km W of Cobb, California · 13115 days ago · 3 km deep · 0 km away
  20. 1.67 km W of Cobb, California · 13115 days ago · 0 km deep · 2 km away
  21. 1.74 km SW of Cobb, California · 13115 days ago · 1 km deep · 5 km away
  22. 1.72 km NW of Green Valley, California · 13115 days ago · 9 km deep · 81 km away
  23. 2.010 km W of Cobb, California · 13114 days ago · 0 km deep · 4 km away
  24. 1.69 km W of Cobb, CA · 13114 days ago · 1 km deep · 2 km away
  25. 2.1Northern California · 13113 days ago · 1 km deep · 4 km away
  26. 1.910 km W of Cobb, California · 13113 days ago · 1 km deep · 4 km away
  27. 1.610 km E of Cloverdale, California · 13112 days ago · 5 km deep · 9 km away
  28. 1.78 km ENE of Willits, California · 13112 days ago · 3 km deep · 79 km away
  29. 1.57 km WNW of Cobb, California · 13112 days ago · 0 km deep · 2 km away
  30. 2.310 km W of Elk Creek, California · 13112 days ago · 11 km deep · 88 km away
  31. 2.57 km W of Cobb, California · 13112 days ago · 0 km deep · 2 km away
  32. 1.76 km W of Cobb, California · 13111 days ago · 1 km deep · 0 km away
  33. 2.35 km SW of Cobb, California · 13110 days ago · 2 km deep · 4 km away
  34. 2.39 km W of Cobb, California · 13110 days ago · -1 km deep · 3 km away
  35. 1.615 km NE of Upper Lake, California · 13109 days ago · 1 km deep · 48 km away
  36. 1.77 km WSW of Cobb, California · 13109 days ago · 3 km deep · 2 km away
  37. 3.16 km W of Cobb, California · 13108 days ago · 3 km deep · 1 km away
  38. 2.04 km W of Cobb, California · 13108 days ago · -1 km deep · 2 km away
  39. 1.65 km WSW of Cobb, California · 13108 days ago · 3 km deep · 2 km away
  40. 1.66 km W of Cobb, California · 13108 days ago · 3 km deep · 1 km away
  41. 2.04 km SSW of Cobb, California · 13108 days ago · 1 km deep · 5 km away
  42. 1.67 km W of Cobb, California · 13108 days ago · 3 km deep · 1 km away
  43. 2.53 km ESE of Sonoma, California · 13108 days ago · 7 km deep · 69 km away
  44. 1.79 km W of Cobb, California · 13108 days ago · 1 km deep · 3 km away
  45. 2.27 km NW of Cobb, California · 13107 days ago · 1 km deep · 4 km away
  46. 2.83 km W of Roseland, California · 13106 days ago · 6 km deep · 44 km away
  47. 1.67 km WSW of Cobb, California · 13106 days ago · 3 km deep · 2 km away
  48. 1.824 km NE of Potter Valley, California · 13105 days ago · 10 km deep · 77 km away
  49. 1.68 km E of Hidden Valley Lake, California · 13105 days ago · 6 km deep · 29 km away
  50. 2.05 km WSW of Cobb, California · 13105 days ago · 0 km deep · 3 km away
  51. 1.95 km WNW of Cobb, California · 13104 days ago · 1 km deep · 2 km away
  52. 2.08 km WSW of Cobb, California · 13104 days ago · 1 km deep · 3 km away
  53. 2.04 km SW of Cobb, California · 13104 days ago · 1 km deep · 5 km away
  54. 2.23 km W of Cobb, California · 13104 days ago · 0 km deep · 3 km away
  55. 2.33 km WNW of Cobb, California · 13104 days ago · 1 km deep · 4 km away
  56. 1.98 km WSW of Cobb, California · 13104 days ago · 4 km deep · 3 km away
  57. 1.56 km WSW of Cobb, California · 13103 days ago · 0 km deep · 4 km away
  58. 1.88 km NNE of Comptche, California · 13102 days ago · 6 km deep · 88 km away
  59. 1.64 km WSW of Cobb, California · 13102 days ago · 1 km deep · 2 km away
  60. 1.64 km WSW of Kenwood, California · 13102 days ago · 7 km deep · 50 km away

The first 60 of 179.

Before

  1. 1.76 km W of Cobb, California · 13122 days ago · 3 km deep · 1 km away
  2. 2.024 km NE of Potter Valley, California · 13124 days ago · 9 km deep · 76 km away
  3. 2.03 km SE of Bodega Bay, California · 13124 days ago · 2 km deep · 59 km away
  4. 2.64 km WSW of Cobb, California · 13124 days ago · 1 km deep · 3 km away
  5. 2.07 km W of Cobb, California · 13124 days ago · 3 km deep · 2 km away
  6. 1.66 km E of Santa Rosa, California · 13125 days ago · 0 km deep · 43 km away
  7. 1.97 km W of Cobb, California · 13125 days ago · 4 km deep · 1 km away
  8. 1.62 km NNE of Talmage, California · 13126 days ago · 5 km deep · 49 km away
  9. 1.62 km NNE of Talmage, California · 13126 days ago · 5 km deep · 48 km away
  10. 1.76 km E of Santa Rosa, California · 13126 days ago · 0 km deep · 43 km away
  11. 1.94 km W of Cobb, California · 13126 days ago · 0 km deep · 2 km away
  12. 1.76 km E of Santa Rosa, California · 13126 days ago · 1 km deep · 43 km away
  13. 1.67 km S of Cobb, California · 13126 days ago · 2 km deep · 11 km away
  14. 1.86 km E of Santa Rosa, California · 13127 days ago · 0 km deep · 43 km away
  15. 2.510 km N of Cloverdale, California · 13127 days ago · -1 km deep · 21 km away
  16. 2.16 km SW of Cobb, California · 13128 days ago · 0 km deep · 5 km away
  17. 2.25 km WSW of Cobb, California · 13129 days ago · 0 km deep · 3 km away
  18. 2.54 km WSW of Cobb, California · 13130 days ago · 2 km deep · 3 km away
  19. 1.712 km ESE of Hidden Valley Lake, California · 13131 days ago · 5 km deep · 32 km away
  20. 1.710 km NW of Cobb, California · 13131 days ago · 0 km deep · 7 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc200074. Read Sun, Oct 4, 2026, 11:04 PM UTC.