California earthquakes

M2.5 earthquake 8 km W of Cobb, California

A magnitude 2.5 earthquake struck 8 km W of Cobb, California on Fri, Mar 7, 1986, 4:12 PM PST (00:12 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M3.6 7 km W 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
2.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1986-03-08 00:12:44 UTC
Depth
0.7 km (0.5 mi), shallow
Epicenter
38.813° N, 122.824° 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
±0.22
Depth from
From location
Station coverage gap
43°
Stations used
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 173 in the 60 days after this one and 94 in the 30 days before it.

After

  1. 1.89 km W of Cobb, California · 14820 days ago · -1 km deep · 1 km away
  2. 1.67 km SSE of Cloverdale, California · 14819 days ago · 2 km deep · 15 km away
  3. 2.18 km W of Cobb, California · 14818 days ago · 1 km deep · 2 km away
  4. 1.87 km WSW of Cobb, California · 14818 days ago · 1 km deep · 3 km away
  5. 1.78 km W of Cobb, California · 14818 days ago · 1 km deep · 0 km away
  6. 2.06 km WSW of Cobb, California · 14818 days ago · 1 km deep · 2 km away
  7. 1.74 km WSW of Cobb, California · 14817 days ago · 0 km deep · 5 km away
  8. 1.85 km SW of Cobb, California · 14817 days ago · -1 km deep · 6 km away
  9. 1.75 km SW of Cobb, California · 14817 days ago · 1 km deep · 5 km away
  10. 2.18 km ESE of Willits, California · 14816 days ago · 3 km deep · 74 km away
  11. 2.38 km WSW of Cobb, California · 14816 days ago · 1 km deep · 2 km away
  12. 2.45 km WSW of Cobb, California · 14816 days ago · 4 km deep · 4 km away
  13. 1.76 km W of Cobb, California · 14815 days ago · 2 km deep · 2 km away
  14. 1.96 km W of Cobb, California · 14815 days ago · 2 km deep · 2 km away
  15. 2.05 km SW of Cobb, California · 14814 days ago · 0 km deep · 6 km away
  16. 1.66 km W of Cobb, California · 14814 days ago · 3 km deep · 2 km away
  17. 1.76 km NE of Willits, California · 14814 days ago · 7 km deep · 82 km away
  18. 2.25 km SW of Cobb, California · 14814 days ago · 0 km deep · 5 km away
  19. 2.06 km W of Cobb, California · 14813 days ago · 1 km deep · 4 km away
  20. 1.68 km W of Cobb, California · 14813 days ago · -1 km deep · 0 km away
  21. 1.77 km WSW of Cobb, California · 14813 days ago · 1 km deep · 2 km away
  22. 1.66 km W of Cobb, California · 14813 days ago · 3 km deep · 2 km away
  23. 1.53 km WNW of Cobb, California · 14813 days ago · 1 km deep · 5 km away
  24. 1.87 km WSW of Cobb, California · 14812 days ago · 1 km deep · 2 km away
  25. 1.84 km S of Cobb, California · 14812 days ago · 0 km deep · 9 km away
  26. 2.44 km SW of Cobb, California · 14812 days ago · 1 km deep · 5 km away
  27. 1.76 km W of Cobb, California · 14811 days ago · 0 km deep · 3 km away
  28. 2.27 km W of Cobb, California · 14811 days ago · 2 km deep · 2 km away
  29. 2.625 km ENE of Potter Valley, California · 14811 days ago · 10 km deep · 68 km away
  30. 2.15 km W of Cobb, California · 14811 days ago · 0 km deep · 3 km away
  31. 2.25 km WSW of Cobb, California · 14810 days ago · 0 km deep · 4 km away
  32. 1.74 km ESE of Clear Lake Riviera, California · 14810 days ago · 2 km deep · 20 km away
  33. 1.74 km W of Cobb, California · 14810 days ago · 1 km deep · 4 km away
  34. 2.24 km SW of Cobb, California · 14810 days ago · 0 km deep · 6 km away
  35. 1.96 km W of Cobb, California · 14810 days ago · 3 km deep · 2 km away
  36. 1.84 km W of Cobb, California · 14810 days ago · 1 km deep · 4 km away
  37. 1.84 km W of Cobb, California · 14809 days ago · -1 km deep · 5 km away
  38. 2.07 km WSW of Cobb, California · 14809 days ago · 0 km deep · 2 km away
  39. 1.76 km WNW of Cobb, California · 14809 days ago · 1 km deep · 3 km away
  40. 1.77 km W of Cobb, California · 14808 days ago · 3 km deep · 1 km away
  41. 1.83 km SW of Cobb, California · 14808 days ago · 1 km deep · 7 km away
  42. 1.67 km WSW of Cobb, California · 14808 days ago · 1 km deep · 2 km away
  43. 1.96 km W of Cobb, California · 14808 days ago · 3 km deep · 3 km away
  44. 1.64 km W of Cobb, California · 14808 days ago · -1 km deep · 4 km away
  45. 1.52 km SSE of Roseland, California · 14808 days ago · 4 km deep · 46 km away
  46. 1.77 km WSW of Cobb, California · 14808 days ago · 3 km deep · 2 km away
  47. 1.87 km W of Cobb, California · 14807 days ago · 3 km deep · 2 km away
  48. 1.57 km W of Cobb, California · 14807 days ago · 3 km deep · 1 km away
  49. 1.65 km W of Cobb, California · 14807 days ago · 0 km deep · 4 km away
  50. 1.825 km ENE of Potter Valley, California · 14807 days ago · 1 km deep · 65 km away
  51. 1.64 km WSW of Cobb, California · 14807 days ago · 1 km deep · 5 km away
  52. 2.37 km WSW of Cobb, California · 14806 days ago · 0 km deep · 2 km away
  53. 1.76 km W of Cobb, California · 14805 days ago · 3 km deep · 2 km away
  54. 2.07 km ESE of Cloverdale, California · 14805 days ago · 5 km deep · 10 km away
  55. 1.77 km W of Cobb, California · 14805 days ago · 3 km deep · 1 km away
  56. 2.210 km ESE of Willits, California · 14805 days ago · 7 km deep · 72 km away
  57. 3.67 km W of Cobb, California · 14804 days ago · 0 km deep · 2 km away
  58. 2.77 km W of Cobb, California · 14804 days ago · 1 km deep · 2 km away
  59. 2.08 km WSW of Cobb, California · 14804 days ago · 3 km deep · 2 km away
  60. 2.14 km WSW of Cobb, California · 14802 days ago · 1 km deep · 5 km away

The first 60 of 173.

Before

  1. 2.3Northern California · 14820 days ago · 4 km deep · 1 km away
  2. 1.96 km SSW of Calistoga, California · 14820 days ago · 4 km deep · 37 km away
  3. 1.71 km SE of Clear Lake Riviera, California · 14821 days ago · 2 km deep · 18 km away
  4. 2.26 km W of Cobb, California · 14821 days ago · -1 km deep · 3 km away
  5. 2.119 km NNE of Upper Lake, California · 14821 days ago · 5 km deep · 57 km away
  6. 2.119 km NNE of Upper Lake, California · 14821 days ago · 0 km deep · 57 km away
  7. 1.97 km WSW of Cobb, California · 14821 days ago · 0 km deep · 1 km away
  8. 1.65 km WSW of Cobb, California · 14822 days ago · 3 km deep · 4 km away
  9. 1.610 km N of Cloverdale, California · 14822 days ago · -1 km deep · 19 km away
  10. 2.23 km SSW of Guinda, California · 14823 days ago · 6 km deep · 53 km away
  11. 1.56 km SW of Cobb, California · 14823 days ago · 2 km deep · 4 km away
  12. 2.25 km W of Cobb, California · 14823 days ago · -1 km deep · 4 km away
  13. 1.59 km NNE of Larkfield-Wikiup, California · 14823 days ago · 1 km deep · 26 km away
  14. 1.97 km WSW of Cobb, California · 14823 days ago · 0 km deep · 2 km away
  15. 1.77 km W of Cobb, California · 14824 days ago · 3 km deep · 1 km away
  16. 1.87 km W of Cobb, California · 14824 days ago · 3 km deep · 1 km away
  17. 1.67 km W of Cobb, California · 14824 days ago · 4 km deep · 1 km away
  18. 1.98 km WNW of Cobb, California · 14824 days ago · 1 km deep · 4 km away
  19. 1.719 km NE of Upper Lake, California · 14824 days ago · 9 km deep · 56 km away
  20. 2.46 km W of Cobb, California · 14825 days ago · 4 km deep · 3 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc67714. Read Sat, Oct 3, 2026, 3:29 PM UTC.