California earthquakes

M1.9 earthquake 8 km W of Cobb, California

A magnitude 1.9 earthquake struck 8 km W of Cobb, California on Sat, Mar 20, 1982, 10:45 AM PST (18:45 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M2.2 24 km SE of Covelo, 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
1982-03-20 18:45:03 UTC
Depth
-0.8 km (-0.5 mi), shallow
Epicenter
38.818° N, 122.815° 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
±0.20
Depth from
From location
Station coverage gap
59°
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: 111 in the 60 days after this one and 77 in the 30 days before it.

After

  1. 1.612 km W of Calpella, California · 16257 days ago · 5 km deep · 66 km away
  2. 1.712 km W of Calpella, California · 16257 days ago · 3 km deep · 66 km away
  3. 2.224 km SE of Covelo, California · 16256 days ago · 8 km deep · 91 km away
  4. 2.224 km SE of Covelo, California · 16256 days ago · 5 km deep · 91 km away
  5. 2.37 km W of Cobb, California · 16255 days ago · 3 km deep · 1 km away
  6. 2.16 km WSW of Cobb, California · 16254 days ago · 0 km deep · 2 km away
  7. 3.06 km NE of Santa Rosa, California · 16254 days ago · 8 km deep · 41 km away
  8. 1.77 km ESE of Hopland, California · 16254 days ago · 6 km deep · 24 km away
  9. 1.85 km SE of Santa Rosa, California · 16253 days ago · 9 km deep · 47 km away
  10. 1.99 km NW of Cobb, California · 16253 days ago · -1 km deep · 8 km away
  11. 2.17 km W of Cobb, California · 16253 days ago · -1 km deep · 1 km away
  12. 2.825 km WNW of Elk Creek, California · 16253 days ago · 0 km deep · 99 km away
  13. 3.47 km WSW of Cobb, California · 16253 days ago · 0 km deep · 2 km away
  14. 2.37 km WSW of Cobb, California · 16253 days ago · 1 km deep · 2 km away
  15. 1.87 km WSW of Cobb, California · 16253 days ago · 1 km deep · 3 km away
  16. 2.37 km WSW of Cobb, California · 16253 days ago · 1 km deep · 2 km away
  17. 1.724 km WNW of Elk Creek, California · 16253 days ago · 4 km deep · 95 km away
  18. 1.57 km W of Cobb, California · 16252 days ago · 3 km deep · 1 km away
  19. 1.56 km W of Cobb, California · 16250 days ago · 3 km deep · 1 km away
  20. 1.54 km WSW of Cobb, California · 16250 days ago · 2 km deep · 5 km away
  21. 1.79 km WSW of Cobb, California · 16248 days ago · 2 km deep · 2 km away
  22. 1.63 km E of Santa Rosa, California · 16248 days ago · 8 km deep · 44 km away
  23. 1.77 km N of Geyserville, California · 16248 days ago · 5 km deep · 10 km away
  24. 1.86 km WSW of Cobb, California · 16247 days ago · 3 km deep · 2 km away
  25. 1.86 km WSW of Cobb, California · 16245 days ago · 0 km deep · 2 km away
  26. 1.925 km SE of Covelo, California · 16245 days ago · 5 km deep · 91 km away
  27. 1.84 km S of Cobb, California · 16244 days ago · 0 km deep · 9 km away
  28. 1.7Northern California · 16244 days ago · 8 km deep · 5 km away
  29. 1.64 km W of Cobb, California · 16244 days ago · 4 km deep · 4 km away
  30. 2.17 km W of Cobb, California · 16244 days ago · 0 km deep · 1 km away
  31. 1.77 km WSW of Cobb, California · 16243 days ago · -1 km deep · 2 km away
  32. 2.36 km W of Cobb, California · 16243 days ago · 4 km deep · 2 km away
  33. 2.36 km WSW of Cobb, California · 16243 days ago · 3 km deep · 2 km away
  34. 2.85 km SE of Talmage, California · 16243 days ago · 8 km deep · 41 km away
  35. 1.75 km ENE of Rohnert Park, California · 16241 days ago · 7 km deep · 54 km away
  36. 2.127 km SE of Covelo, California · 16241 days ago · 4 km deep · 89 km away
  37. 2.523 km SE of Covelo, California · 16241 days ago · 4 km deep · 93 km away
  38. 3.06 km ENE of Brooktrails, California · 16239 days ago · 8 km deep · 84 km away
  39. 2.58 km ENE of Talmage, California · 16238 days ago · 43 km deep · 44 km away
  40. 1.96 km W of Cobb, California · 16238 days ago · 2 km deep · 2 km away
  41. 1.77 km SE of Hopland, California · 16238 days ago · 2 km deep · 24 km away
  42. 1.91 km SE of Larkfield-Wikiup, California · 16238 days ago · 5 km deep · 36 km away
  43. 1.64 km NNE of Calistoga, California · 16237 days ago · 1 km deep · 32 km away
  44. 2.65 km WNW of Princeton, California · 16237 days ago · 11 km deep · 93 km away
  45. 1.67 km WSW of Cobb, California · 16236 days ago · 2 km deep · 1 km away
  46. 1.66 km W of Cobb, California · 16235 days ago · 3 km deep · 2 km away
  47. 1.99 km NE of Cloverdale, California · 16235 days ago · 11 km deep · 12 km away
  48. 2.98 km ESE of Talmage, California · 16235 days ago · 9 km deep · 39 km away
  49. 2.13 km SE of Calpella, California · 16234 days ago · 3 km deep · 53 km away
  50. 2.33 km SE of Larkfield-Wikiup, California · 16234 days ago · 5 km deep · 37 km away
  51. 1.96 km W of Cobb, California · 16234 days ago · 5 km deep · 1 km away
  52. 2.83 km SE of Larkfield-Wikiup, California · 16234 days ago · 6 km deep · 37 km away
  53. 2.73 km SE of Larkfield-Wikiup, California · 16234 days ago · 6 km deep · 37 km away
  54. 2.72 km SE of Larkfield-Wikiup, California · 16234 days ago · 5 km deep · 37 km away
  55. 1.63 km ESE of Larkfield-Wikiup, California · 16233 days ago · 7 km deep · 37 km away
  56. 1.88 km WSW of Cobb, California · 16232 days ago · 2 km deep · 2 km away
  57. 1.714 km NNE of Angwin, California · 16232 days ago · 3 km deep · 40 km away
  58. 2.114 km N of Potter Valley, California · 16232 days ago · 7 km deep · 75 km away
  59. 2.07 km WSW of Cobb, California · 16231 days ago · 0 km deep · 2 km away
  60. 1.89 km ESE of Black Point-Green Point, California · 16231 days ago · 8 km deep · 89 km away

The first 60 of 111.

Before

  1. 1.89 km W of Cobb, California · 16257 days ago · -1 km deep · 1 km away
  2. 3.68 km W of Cobb, California · 16257 days ago · 1 km deep · 1 km away
  3. 2.31 km SW of Lower Lake, California · 16258 days ago · 6 km deep · 19 km away
  4. 1.56 km WSW of Cobb, California · 16259 days ago · 0 km deep · 2 km away
  5. 1.67 km WSW of Cobb, California · 16260 days ago · 2 km deep · 2 km away
  6. 2.07 km WSW of Cobb, California · 16260 days ago · 0 km deep · 1 km away
  7. 2.26 km WSW of Cobb, California · 16260 days ago · 0 km deep · 2 km away
  8. 1.925 km SE of Covelo, California · 16260 days ago · 8 km deep · 90 km away
  9. 2.35 km S of Cobb, California · 16260 days ago · 2 km deep · 9 km away
  10. 1.53 km SSE of Talmage, California · 16260 days ago · 3 km deep · 43 km away
  11. 1.68 km W of Cobb, California · 16260 days ago · 1 km deep · 1 km away
  12. 1.624 km SE of Covelo, California · 16261 days ago · 1 km deep · 92 km away
  13. 1.826 km SE of Covelo, California · 16261 days ago · 14 km deep · 90 km away
  14. 1.87 km W of Cobb, California · 16261 days ago · 2 km deep · 1 km away
  15. 3.124 km SE of Covelo, California · 16261 days ago · 12 km deep · 91 km away
  16. 3.225 km SE of Covelo, California · 16261 days ago · 13 km deep · 91 km away
  17. 2.36 km ENE of Santa Rosa, California · 16262 days ago · 6 km deep · 41 km away
  18. 2.824 km SE of Covelo, California · 16262 days ago · 12 km deep · 91 km away
  19. 2.16 km WSW of Cobb, California · 16262 days ago · 0 km deep · 3 km away
  20. 1.84 km E of Calpella, California · 16262 days ago · 4 km deep · 55 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1073059. Read Tue, Sep 22, 2026, 8:28 PM UTC.