California earthquakes

M1.9 earthquake 9 km W of Cobb, California

A magnitude 1.9 earthquake struck 9 km W of Cobb, California on Fri, Dec 7, 1990, 11:44 PM PST (07:44 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
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-12-08 07:44:53 UTC
Depth
0.0 km (0.0 mi), shallow
Epicenter
38.823° N, 122.835° 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, 0.5 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
42°
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: 188 in the 60 days after this one and 86 in the 30 days before it.

After

  1. 1.89 km W of Cobb, California · 13084 days ago · 1 km deep · 2 km away
  2. 2.38 km W of Cobb, California · 13083 days ago · 1 km deep · 2 km away
  3. 2.58 km W of Cobb, California · 13083 days ago · 0 km deep · 2 km away
  4. 2.18 km W of Cobb, California · 13083 days ago · 0 km deep · 2 km away
  5. 1.64 km W of Cobb, California · 13083 days ago · 2 km deep · 5 km away
  6. 1.95 km WSW of Cobb, California · 13082 days ago · -1 km deep · 5 km away
  7. 2.37 km NNW of Princeton, California · 13082 days ago · 24 km deep · 98 km away
  8. 1.86 km WSW of Glen Ellen, California · 13081 days ago · 9 km deep · 59 km away
  9. 1.9Northern California · 13081 days ago · 0 km deep · 3 km away
  10. 1.65 km WSW of Cobb, California · 13080 days ago · 1 km deep · 5 km away
  11. 1.59 km SE of Hopland, California · 13080 days ago · 1 km deep · 20 km away
  12. 2.09 km W of Cobb, California · 13080 days ago · 2 km deep · 2 km away
  13. 2.029 km SE of Covelo, California · 13080 days ago · 15 km deep · 89 km away
  14. 1.64 km W of Cobb, California · 13079 days ago · 0 km deep · 6 km away
  15. 1.724 km NE of Potter Valley, California · 13079 days ago · 11 km deep · 75 km away
  16. 1.59 km W of Cobb, California · 13079 days ago · 1 km deep · 1 km away
  17. 2.09 km WNW of Cobb, California · 13079 days ago · 0 km deep · 2 km away
  18. 1.86 km W of Cobb, California · 13079 days ago · 0 km deep · 3 km away
  19. 1.99 km W of Cobb, California · 13079 days ago · 1 km deep · 1 km away
  20. 1.66 km W of Cobb, California · 13078 days ago · 2 km deep · 4 km away
  21. 1.87 km WNW of Cobb, California · 13078 days ago · 0 km deep · 3 km away
  22. 2.17 km WNW of Cobb, California · 13078 days ago · 0 km deep · 3 km away
  23. 1.85 km W of Cobb, California · 13078 days ago · 0 km deep · 4 km away
  24. 1.57 km W of Cobb, California · 13077 days ago · 1 km deep · 3 km away
  25. 1.69 km WNW of Cobb, California · 13077 days ago · 0 km deep · 3 km away
  26. 1.65 km ESE of Cobb, California · 13077 days ago · 8 km deep · 14 km away
  27. 1.57 km WSW of Cobb, California · 13077 days ago · 4 km deep · 3 km away
  28. 1.89 km W of Cobb, California · 13077 days ago · 1 km deep · 1 km away
  29. 1.99 km W of Cobb, California · 13077 days ago · 1 km deep · 1 km away
  30. 2.25 km SW of Cobb, California · 13076 days ago · 0 km deep · 6 km away
  31. 1.65 km WNW of Cobb, California · 13076 days ago · 1 km deep · 5 km away
  32. 1.621 km N of Upper Lake, California · 13075 days ago · 7 km deep · 59 km away
  33. 2.53 km SSW of Cobb, California · 13075 days ago · 1 km deep · 9 km away
  34. 1.71 km E of Talmage, California · 13075 days ago · 5 km deep · 44 km away
  35. 1.72 km E of Clearlake Oaks, California · 13075 days ago · -1 km deep · 28 km away
  36. 1.63 km W of Cobb, California · 13074 days ago · 1 km deep · 6 km away
  37. 1.99 km W of Cobb, California · 13074 days ago · 1 km deep · 0 km away
  38. 1.79 km W of Cobb, California · 13073 days ago · 0 km deep · 0 km away
  39. 2.410 km W of Cobb, California · 13073 days ago · -1 km deep · 1 km away
  40. 2.012 km ENE of Cloverdale, California · 13072 days ago · 1 km deep · 3 km away
  41. 2.69 km NNE of Cloverdale, California · 13072 days ago · 2 km deep · 14 km away
  42. 1.812 km ENE of Cloverdale, California · 13072 days ago · -1 km deep · 4 km away
  43. 1.512 km ENE of Cloverdale, California · 13072 days ago · 0 km deep · 4 km away
  44. 1.80 km SE of Larkfield-Wikiup, California · 13072 days ago · 2 km deep · 36 km away
  45. 1.912 km ENE of Cloverdale, California · 13072 days ago · 1 km deep · 4 km away
  46. 2.27 km S of Cobb, California · 13072 days ago · 2 km deep · 13 km away
  47. 1.510 km W of Cobb, California · 13071 days ago · 0 km deep · 1 km away
  48. 2.15 km SW of Cobb, California · 13071 days ago · 0 km deep · 7 km away
  49. 2.14 km WSW of Cobb, California · 13071 days ago · 1 km deep · 6 km away
  50. 1.710 km ENE of Brooktrails, California · 13070 days ago · 8 km deep · 82 km away
  51. 1.65 km W of Middletown, California · 13070 days ago · 4 km deep · 15 km away
  52. 1.67 km S of Cobb, California · 13070 days ago · 1 km deep · 12 km away
  53. 2.06 km W of Cobb, California · 13069 days ago · 2 km deep · 3 km away
  54. 1.627 km NNE of Potter Valley, California · 13069 days ago · 10 km deep · 81 km away
  55. 1.65 km N of Geyserville, California · 13068 days ago · 4 km deep · 9 km away
  56. 1.6Northern California · 13068 days ago · 1 km deep · 1 km away
  57. 1.9Northern California · 13068 days ago · 1 km deep · 6 km away
  58. 1.6Northern California · 13067 days ago · 0 km deep · 12 km away
  59. 1.57 km WNW of Cobb, California · 13067 days ago · 0 km deep · 4 km away
  60. 2.63 km W of Cobb, California · 13067 days ago · 0 km deep · 6 km away

The first 60 of 188.

Before

  1. 1.84 km W of Cobb, California · 13085 days ago · 2 km deep · 5 km away
  2. 1.86 km WNW of Cobb, California · 13085 days ago · 1 km deep · 5 km away
  3. 1.67 km WSW of Cobb, California · 13085 days ago · 1 km deep · 3 km away
  4. 1.65 km SW of Cobb, California · 13086 days ago · -1 km deep · 8 km away
  5. 2.28 km W of Cobb, California · 13087 days ago · 1 km deep · 1 km away
  6. 1.54 km SW of Cobb, California · 13088 days ago · 1 km deep · 8 km away
  7. 1.98 km W of Cobb, California · 13088 days ago · 0 km deep · 1 km away
  8. 1.69 km W of Cobb, California · 13089 days ago · 1 km deep · 1 km away
  9. 1.75 km WSW of Cobb, California · 13089 days ago · 2 km deep · 6 km away
  10. 1.62 km SSW of Green Valley, California · 13089 days ago · 11 km deep · 87 km away
  11. 1.55 km WSW of Cobb, California · 13089 days ago · 4 km deep · 5 km away
  12. 1.73 km SSW of Cobb, California · 13090 days ago · 1 km deep · 9 km away
  13. 2.05 km W of Cobb, California · 13091 days ago · 0 km deep · 4 km away
  14. 1.55 km WSW of Cobb, California · 13092 days ago · 0 km deep · 6 km away
  15. 1.610 km W of Redwood Valley, California · 13092 days ago · 3 km deep · 66 km away
  16. 1.68 km NNE of Potter Valley, California · 13093 days ago · 1 km deep · 66 km away
  17. 2.28 km W of Cobb, California · 13093 days ago · 0 km deep · 1 km away
  18. 2.18 km W of Cobb, California · 13093 days ago · 1 km deep · 1 km away
  19. 1.68 km W of Cobb, California · 13093 days ago · 0 km deep · 1 km away
  20. 1.88 km W of Cobb, California · 13093 days ago · -1 km deep · 1 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc202031. Read Sun, Oct 4, 2026, 2:28 PM UTC.