California earthquakes

M2.0 earthquake 9 km W of Cobb, California

A magnitude 2.0 earthquake struck 9 km W of Cobb, California on Wed, Aug 15, 1990, 4:10 PM PDT (23:10 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M3.4 7 km WSW 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
2.0 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-08-15 23:10:04 UTC
Depth
0.9 km (0.5 mi), shallow
Epicenter
38.816° N, 122.834° 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, 0.6 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
49°
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 134 in the 60 days after this one and 90 in the 30 days before it.

After

  1. 1.62 km SW of Cobb, California · 13199 days ago · 1 km deep · 8 km away
  2. 1.68 km E of Geyserville, California · 13198 days ago · 4 km deep · 12 km away
  3. 2.01 km S of Redwood Valley, California · 13198 days ago · 6 km deep · 58 km away
  4. 1.65 km SSW of Cobb, California · 13192 days ago · 1 km deep · 9 km away
  5. 2.16 km W of Cobb, California · 13191 days ago · 3 km deep · 3 km away
  6. 2.623 km NE of Potter Valley, California · 13191 days ago · 9 km deep · 76 km away
  7. 2.424 km NE of Potter Valley, California · 13191 days ago · 9 km deep · 77 km away
  8. 1.93 km SW of Cobb, California · 13190 days ago · 1 km deep · 8 km away
  9. 2.35 km SW of Cobb, California · 13190 days ago · 2 km deep · 6 km away
  10. 2.55 km SW of Cobb, California · 13190 days ago · 1 km deep · 6 km away
  11. 2.812 km WNW of Ukiah, California · 13189 days ago · 3 km deep · 61 km away
  12. 1.66 km W of Cobb, California · 13188 days ago · 0 km deep · 3 km away
  13. 1.913 km SE of Laytonville, California · 13187 days ago · 1 km deep · 98 km away
  14. 1.73 km NNE of Glen Ellen, California · 13187 days ago · 0 km deep · 55 km away
  15. 2.33 km SSW of Cobb, California · 13187 days ago · 1 km deep · 9 km away
  16. 1.65 km SW of Cobb, California · 13186 days ago · 0 km deep · 6 km away
  17. 2.27 km N of Hopland, California · 13186 days ago · 0 km deep · 36 km away
  18. 2.37 km N of Hopland, California · 13186 days ago · 3 km deep · 35 km away
  19. 2.04 km WSW of Cobb, California · 13185 days ago · 2 km deep · 5 km away
  20. 1.915 km SE of Laytonville, California · 13185 days ago · 7 km deep · 97 km away
  21. 1.95 km ENE of Kenwood, California · 13184 days ago · 12 km deep · 53 km away
  22. 1.710 km SE of Boonville, California · 13184 days ago · 6 km deep · 41 km away
  23. 2.117 km ENE of Potter Valley, California · 13182 days ago · 7 km deep · 63 km away
  24. 1.97 km S of Cobb, California · 13182 days ago · 1 km deep · 12 km away
  25. 2.29 km W of Cobb, California · 13182 days ago · 0 km deep · 0 km away
  26. 2.76 km WSW of Cobb, California · 13181 days ago · 0 km deep · 4 km away
  27. 2.26 km WSW of Cobb, California · 13181 days ago · 0 km deep · 5 km away
  28. 2.04 km WSW of Cobb, California · 13181 days ago · 1 km deep · 5 km away
  29. 2.55 km WSW of Cobb, California · 13181 days ago · 1 km deep · 5 km away
  30. 2.66 km W of Cobb, California · 13181 days ago · 2 km deep · 4 km away
  31. 2.19 km ESE of Willits, California · 13179 days ago · 1 km deep · 71 km away
  32. 1.86 km W of Cobb, California · 13179 days ago · 3 km deep · 3 km away
  33. 1.93 km SSW of Cobb, California · 13179 days ago · 2 km deep · 9 km away
  34. 1.73 km SSE of Clear Lake Riviera, California · 13179 days ago · -1 km deep · 16 km away
  35. 2.022 km ENE of Potter Valley, California · 13178 days ago · 6 km deep · 61 km away
  36. 1.59 km W of Cobb, California · 13178 days ago · 0 km deep · 1 km away
  37. 2.310 km ESE of Willits, California · 13178 days ago · 3 km deep · 70 km away
  38. 2.85 km WSW of Cobb, California · 13177 days ago · 0 km deep · 5 km away
  39. 1.95 km W of Cobb, California · 13177 days ago · 2 km deep · 5 km away
  40. 1.910 km SE of Willits, California · 13177 days ago · 2 km deep · 70 km away
  41. 1.910 km ESE of Willits, California · 13176 days ago · 5 km deep · 70 km away
  42. 1.610 km ESE of Willits, California · 13176 days ago · 6 km deep · 71 km away
  43. 1.513 km NNW of Moskowite Corner, California · 13175 days ago · 5 km deep · 58 km away
  44. 2.29 km W of Cobb, California · 13174 days ago · 0 km deep · 1 km away
  45. 1.617 km NE of Potter Valley, California · 13174 days ago · 1 km deep · 67 km away
  46. 2.37 km WSW of Cobb, California · 13174 days ago · 2 km deep · 3 km away
  47. 1.95 km WSW of Cobb, California · 13174 days ago · 0 km deep · 4 km away
  48. 2.47 km S of Cobb, California · 13174 days ago · 1 km deep · 12 km away
  49. 3.35 km WSW of Cobb, California · 13173 days ago · 0 km deep · 4 km away
  50. 1.65 km WSW of Cobb, California · 13173 days ago · 3 km deep · 5 km away
  51. 1.66 km SSW of Cobb, California · 13173 days ago · -1 km deep · 10 km away
  52. 1.810 km NE of Angwin, California · 13172 days ago · 4 km deep · 45 km away
  53. 1.620 km NE of Potter Valley, California · 13171 days ago · 5 km deep · 71 km away
  54. 1.89 km W of Cobb, California · 13170 days ago · 0 km deep · 1 km away
  55. 2.24 km SW of Cobb, California · 13170 days ago · 2 km deep · 6 km away
  56. 1.64 km ENE of Saint Helena, California · 13170 days ago · 13 km deep · 49 km away
  57. 1.86 km S of Cobb, California · 13170 days ago · 1 km deep · 12 km away
  58. 1.64 km W of Cobb, California · 13169 days ago · 0 km deep · 6 km away
  59. 1.64 km W of Cobb, California · 13169 days ago · 0 km deep · 5 km away
  60. 1.56 km ESE of Hopland, California · 13168 days ago · 4 km deep · 23 km away

The first 60 of 134.

Before

  1. 2.15 km W of Cobb, California · 13200 days ago · 2 km deep · 5 km away
  2. 2.15 km WSW of Cobb, California · 13200 days ago · 0 km deep · 4 km away
  3. 1.84 km SW of Cobb, California · 13200 days ago · 0 km deep · 7 km away
  4. 2.06 km WNW of Cobb, California · 13200 days ago · 1 km deep · 5 km away
  5. 1.75 km W of Cobb, California · 13200 days ago · 0 km deep · 4 km away
  6. 4.26 km W of Cobb, California · 13200 days ago · 1 km deep · 4 km away
  7. 2.28 km W of Cobb, California · 13200 days ago · 1 km deep · 2 km away
  8. 1.68 km W of Cobb, California · 13200 days ago · 1 km deep · 2 km away
  9. 3.18 km W of Cobb, California · 13200 days ago · 0 km deep · 2 km away
  10. 3.29 km WNW of Cobb, California · 13200 days ago · -1 km deep · 3 km away
  11. 1.68 km W of Cobb, California · 13200 days ago · 1 km deep · 2 km away
  12. 2.98 km W of Cobb, California · 13200 days ago · 0 km deep · 3 km away
  13. 1.85 km WSW of Cobb, California · 13200 days ago · 2 km deep · 5 km away
  14. 1.75 km SW of Cobb, California · 13201 days ago · 2 km deep · 6 km away
  15. 3.110 km W of Cobb, California · 13202 days ago · -1 km deep · 1 km away
  16. 1.87 km W of Cobb, California · 13202 days ago · 3 km deep · 2 km away
  17. 1.724 km NE of Potter Valley, California · 13203 days ago · 7 km deep · 72 km away
  18. 2.212 km NE of Rutherford, California · 13204 days ago · 0 km deep · 56 km away
  19. 1.69 km W of Cobb, California · 13204 days ago · -1 km deep · 0 km away
  20. 1.66 km ENE of Hidden Valley Lake, California · 13204 days ago · 6 km deep · 30 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc162738. Read Sun, Oct 4, 2026, 4:20 PM UTC.