California earthquakes

M2.1 earthquake 5 km SW of Cobb, California

A magnitude 2.1 earthquake struck 5 km SW of Cobb, California on Fri, Mar 1, 1985, 9:07 AM PST (17:07 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M4.1 11 km NNE of Cloverdale, 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
2.1 (md), micro
Local time
UTC
1985-03-01 17:07:28 UTC
Depth
0.6 km (0.4 mi), shallow
Epicenter
38.785° N, 122.758° 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, 0.3 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
51°
Stations used
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 184 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.74 km W of Cobb, California · 15169 days ago · 0 km deep · 4 km away
  2. 1.59 km WSW of Cobb, California · 15168 days ago · 1 km deep · 7 km away
  3. 1.84 km ESE of Healdsburg, California · 15168 days ago · 6 km deep · 21 km away
  4. 2.05 km SW of Cobb, California · 15167 days ago · 0 km deep · 2 km away
  5. 1.56 km W of Cobb, California · 15165 days ago · 4 km deep · 5 km away
  6. 1.86 km WSW of Clear Lake Riviera, California · 15165 days ago · 6 km deep · 16 km away
  7. 1.98 km WSW of Cobb, California · 15165 days ago · 3 km deep · 5 km away
  8. 4.111 km NNE of Cloverdale, California · 15165 days ago · 13 km deep · 20 km away
  9. 3.020 km NNE of Upper Lake, California · 15165 days ago · 10 km deep · 61 km away
  10. 2.54 km W of Glen Ellen, California · 15165 days ago · 9 km deep · 49 km away
  11. 2.05 km W of Glen Ellen, California · 15165 days ago · 0 km deep · 49 km away
  12. 2.56 km W of Cobb, California · 15164 days ago · 1 km deep · 6 km away
  13. 1.87 km W of Cobb, California · 15164 days ago · 2 km deep · 6 km away
  14. 1.97 km WSW of Cobb, California · 15164 days ago · 1 km deep · 4 km away
  15. 2.48 km WSW of Cobb, California · 15163 days ago · 4 km deep · 5 km away
  16. 1.55 km SW of Cobb, California · 15163 days ago · 0 km deep · 1 km away
  17. 2.07 km WSW of Cobb, California · 15163 days ago · 0 km deep · 5 km away
  18. 1.56 km W of Cobb, California · 15163 days ago · 1 km deep · 5 km away
  19. 2.06 km W of Cobb, California · 15162 days ago · 2 km deep · 5 km away
  20. 1.7Northern California · 15162 days ago · 0 km deep · 4 km away
  21. 1.74 km W of Cobb, California · 15162 days ago · 0 km deep · 4 km away
  22. 2.86 km NW of Guinda, California · 15162 days ago · 0 km deep · 45 km away
  23. 2.43 km NNE of Guinda, California · 15161 days ago · -1 km deep · 51 km away
  24. 2.34 km E of Kenwood, California · 15161 days ago · 0 km deep · 48 km away
  25. 1.61 km ENE of Larkfield-Wikiup, California · 15161 days ago · 3 km deep · 30 km away
  26. 1.76 km W of Cobb, California · 15161 days ago · 3 km deep · 6 km away
  27. 1.85 km SW of Cobb, California · 15161 days ago · 1 km deep · 2 km away
  28. 1.97 km W of Cobb, California · 15161 days ago · 1 km deep · 5 km away
  29. 2.05 km WSW of Cobb, California · 15160 days ago · 0 km deep · 2 km away
  30. 2.75 km W of Cobb, California · 15160 days ago · 3 km deep · 5 km away
  31. 2.09 km W of Cobb, California · 15160 days ago · 2 km deep · 7 km away
  32. 1.85 km SW of Cobb, California · 15160 days ago · 4 km deep · 1 km away
  33. 1.65 km W of Cobb, California · 15160 days ago · -1 km deep · 5 km away
  34. 1.87 km WSW of Cobb, California · 15159 days ago · 1 km deep · 5 km away
  35. 1.819 km NNE of Upper Lake, California · 15159 days ago · 0 km deep · 60 km away
  36. 2.27 km WSW of Cobb, California · 15159 days ago · 2 km deep · 5 km away
  37. 3.04 km W of Cobb, California · 15159 days ago · -1 km deep · 5 km away
  38. 1.68 km W of Cobb, California · 15159 days ago · 0 km deep · 7 km away
  39. 2.35 km SW of Cobb, California · 15158 days ago · 1 km deep · 0 km away
  40. 1.912 km NW of Upper Lake, California · 15158 days ago · 5 km deep · 55 km away
  41. 3.27 km NNE of Hopland, California · 15158 days ago · 2 km deep · 39 km away
  42. 1.96 km W of Cobb, California · 15158 days ago · 3 km deep · 5 km away
  43. 2.09 km NNE of Angwin, California · 15157 days ago · -1 km deep · 35 km away
  44. 2.06 km SW of Cobb, California · 15157 days ago · 1 km deep · 1 km away
  45. 1.55 km SSW of Cobb, California · 15157 days ago · 1 km deep · 0 km away
  46. 2.36 km WSW of Cobb, California · 15156 days ago · -1 km deep · 3 km away
  47. 1.86 km WSW of Cobb, California · 15156 days ago · 0 km deep · 2 km away
  48. 1.87 km WSW of Cobb, California · 15156 days ago · 1 km deep · 5 km away
  49. 2.14 km WSW of Cobb, California · 15156 days ago · 2 km deep · 3 km away
  50. 1.65 km SW of Cobb, California · 15156 days ago · 1 km deep · 2 km away
  51. 1.96 km WSW of Cobb, California · 15154 days ago · 4 km deep · 4 km away
  52. 1.66 km W of Cobb, California · 15153 days ago · 3 km deep · 5 km away
  53. 1.817 km ESE of Hidden Valley Lake, California · 15153 days ago · 4 km deep · 33 km away
  54. 2.97 km W of Cobb, California · 15153 days ago · 1 km deep · 6 km away
  55. 1.6Northern California · 15153 days ago · 1 km deep · 5 km away
  56. 1.88 km W of Cobb, California · 15153 days ago · 0 km deep · 6 km away
  57. 2.25 km E of Santa Rosa, California · 15153 days ago · 0 km deep · 40 km away
  58. 1.67 km WSW of Cobb, California · 15152 days ago · 0 km deep · 5 km away
  59. 1.919 km WSW of Williams, California · 15152 days ago · 1 km deep · 50 km away
  60. 1.67 km WSW of Cobb, California · 15152 days ago · 1 km deep · 5 km away

The first 60 of 184.

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc42501. Read Tue, Sep 22, 2026, 9:36 AM UTC.