California earthquakes

M2.2 earthquake 6 km W of Cobb, California

A magnitude 2.2 earthquake struck 6 km W of Cobb, California on Thu, Sep 11, 1986, 5:09 PM PDT (00:09 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M4.0 4 km SW of Sea Ranch, 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
2.2 (md), micro
Local time
UTC
1986-09-12 00:09:12 UTC
Depth
1.1 km (0.7 mi), shallow
Epicenter
38.828° N, 122.801° 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, 0.5 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
94°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 152 in the 60 days after this one and 95 in the 30 days before it.

After

  1. 2.04 km WSW of Cobb, California · 14628 days ago · 1 km deep · 3 km away
  2. 2.22 km NNW of Talmage, California · 14627 days ago · -1 km deep · 49 km away
  3. 2.05 km WNW of Cobb, California · 14627 days ago · 2 km deep · 2 km away
  4. 2.07 km WSW of Cobb, California · 14627 days ago · 3 km deep · 4 km away
  5. 2.47 km W of Cobb, California · 14627 days ago · 2 km deep · 2 km away
  6. 1.77 km W of Cobb, California · 14627 days ago · 3 km deep · 1 km away
  7. 2.45 km SW of Cobb, California · 14626 days ago · 0 km deep · 5 km away
  8. 2.05 km WSW of Cobb, California · 14626 days ago · -1 km deep · 4 km away
  9. 2.0Northern California · 14625 days ago · 3 km deep · 1 km away
  10. 2.04 km WNW of Cobb, California · 14625 days ago · 2 km deep · 3 km away
  11. 1.73 km WNW of Nice, California · 14624 days ago · 4 km deep · 34 km away
  12. 1.75 km ESE of Talmage, California · 14624 days ago · 10 km deep · 42 km away
  13. 1.85 km WSW of Cobb, California · 14624 days ago · 0 km deep · 4 km away
  14. 1.68 km W of Cobb, California · 14624 days ago · 2 km deep · 2 km away
  15. 1.52 km NE of Ukiah, California · 14624 days ago · 16 km deep · 50 km away
  16. 1.67 km WSW of Cobb, California · 14623 days ago · 1 km deep · 3 km away
  17. 2.18 km NE of Lucerne, California · 14623 days ago · 1 km deep · 35 km away
  18. 1.58 km WSW of Cobb, California · 14622 days ago · 3 km deep · 3 km away
  19. 3.08 km WSW of Cobb, California · 14621 days ago · 4 km deep · 3 km away
  20. 1.87 km WSW of Cobb, California · 14621 days ago · 3 km deep · 3 km away
  21. 2.26 km W of Cobb, California · 14621 days ago · 2 km deep · 1 km away
  22. 2.55 km S of Boonville, California · 14620 days ago · 1 km deep · 52 km away
  23. 1.80 km WSW of Geyserville, California · 14620 days ago · 7 km deep · 17 km away
  24. 2.66 km WSW of Cobb, California · 14620 days ago · 1 km deep · 4 km away
  25. 1.80 km SSW of Geyserville, California · 14620 days ago · 8 km deep · 17 km away
  26. 1.97 km W of Cobb, California · 14619 days ago · 3 km deep · 2 km away
  27. 2.914 km SSW of Cloverdale, California · 14617 days ago · 17 km deep · 29 km away
  28. 2.69 km SW of Cobb, California · 14616 days ago · 5 km deep · 9 km away
  29. 2.68 km W of Cobb, California · 14616 days ago · -1 km deep · 3 km away
  30. 1.97 km W of Cobb, California · 14616 days ago · 0 km deep · 2 km away
  31. 1.514 km E of Angwin, California · 14615 days ago · 4 km deep · 54 km away
  32. 1.615 km WSW of Cloverdale, California · 14614 days ago · 1 km deep · 34 km away
  33. 2.120 km ENE of Potter Valley, California · 14614 days ago · 4 km deep · 62 km away
  34. 1.76 km W of Cobb, California · 14614 days ago · 3 km deep · 1 km away
  35. 1.66 km W of Cobb, California · 14614 days ago · 3 km deep · 1 km away
  36. 1.69 km W of Cobb, California · 14614 days ago · 2 km deep · 2 km away
  37. 2.14 km W of Cobb, California · 14614 days ago · 0 km deep · 2 km away
  38. 2.56 km NE of Talmage, California · 14613 days ago · 0 km deep · 47 km away
  39. 1.67 km W of Cobb, California · 14612 days ago · 3 km deep · 2 km away
  40. 2.97 km W of Cobb, CA · 14612 days ago · 1 km deep · 0 km away
  41. 1.9Northern California · 14612 days ago · 1 km deep · 1 km away
  42. 2.86 km WSW of Cobb, California · 14611 days ago · 1 km deep · 3 km away
  43. 1.95 km E of Penngrove, California · 14611 days ago · 4 km deep · 61 km away
  44. 2.66 km W of Cobb, California · 14611 days ago · 3 km deep · 1 km away
  45. 1.97 km W of Cobb, California · 14610 days ago · 3 km deep · 1 km away
  46. 2.26 km WSW of Cobb, California · 14610 days ago · 0 km deep · 2 km away
  47. 2.44 km WSW of Lakeport, California · 14609 days ago · 14 km deep · 25 km away
  48. 2.26 km SSW of Kelseyville, California · 14609 days ago · 39 km deep · 11 km away
  49. 1.84 km WSW of Cobb, California · 14609 days ago · -1 km deep · 3 km away
  50. 2.47 km W of Cobb, California · 14608 days ago · 1 km deep · 1 km away
  51. 1.97 km W of Cobb, California · 14608 days ago · 1 km deep · 1 km away
  52. 1.95 km WSW of Cobb, California · 14608 days ago · 2 km deep · 3 km away
  53. 2.15 km WSW of Cobb, California · 14608 days ago · -1 km deep · 4 km away
  54. 2.024 km NNE of Potter Valley, California · 14608 days ago · 8 km deep · 78 km away
  55. 2.25 km E of Redwood Valley, California · 14608 days ago · 1 km deep · 56 km away
  56. 1.514 km ESE of Hidden Valley Lake, California · 14608 days ago · 3 km deep · 35 km away
  57. 3.020 km ENE of Potter Valley, California · 14607 days ago · 14 km deep · 61 km away
  58. 1.919 km ENE of Potter Valley, California · 14607 days ago · 4 km deep · 61 km away
  59. 2.615 km ENE of Potter Valley, California · 14606 days ago · 6 km deep · 59 km away
  60. 2.36 km W of Cobb, California · 14605 days ago · 2 km deep · 1 km away

The first 60 of 152.

Before

  1. 1.611 km WSW of Cloverdale, California · 14628 days ago · 4 km deep · 30 km away
  2. 4.526 km NE of Potter Valley, California · 14629 days ago · 4 km deep · 71 km away
  3. 2.018 km NE of Upper Lake, California · 14629 days ago · 4 km deep · 53 km away
  4. 1.97 km WSW of Cobb, California · 14630 days ago · 2 km deep · 2 km away
  5. 1.64 km W of Brooktrails, California · 14631 days ago · 4 km deep · 89 km away
  6. 1.75 km WNW of Cobb, California · 14631 days ago · 1 km deep · 2 km away
  7. 2.03 km W of Forestville, California · 14631 days ago · 0 km deep · 41 km away
  8. 1.710 km E of Calpella, California · 14631 days ago · 2 km deep · 50 km away
  9. 2.03 km WNW of Cobb, California · 14631 days ago · 0 km deep · 3 km away
  10. 1.922 km NNE of Upper Lake, California · 14633 days ago · 13 km deep · 59 km away
  11. 1.95 km SW of Cobb, California · 14633 days ago · 2 km deep · 4 km away
  12. 1.84 km W of Cobb, California · 14633 days ago · 0 km deep · 2 km away
  13. 1.52 km NW of Larkfield-Wikiup, California · 14633 days ago · 3 km deep · 33 km away
  14. 1.76 km W of Cobb, California · 14634 days ago · 3 km deep · 1 km away
  15. 3.46 km W of Cobb, California · 14634 days ago · -1 km deep · 1 km away
  16. 3.46 km W of Cobb, California · 14634 days ago · 1 km deep · 1 km away
  17. 1.83 km S of Cobb, California · 14635 days ago · 1 km deep · 8 km away
  18. 2.94 km S of Cobb, California · 14635 days ago · 1 km deep · 8 km away
  19. 2.37 km W of Cobb, California · 14635 days ago · 0 km deep · 2 km away
  20. 1.74 km W of Cobb, California · 14635 days ago · 1 km deep · 2 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc82155. Read Wed, Sep 30, 2026, 4:21 AM UTC.