California earthquakes

M2.4 earthquake 8 km WSW of Cobb, California

A magnitude 2.4 earthquake struck 8 km WSW of Cobb, California on Fri, Jun 27, 1986, 6:36 AM PDT (13:36 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M4.7 5 km NNE of Brooktrails, 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
2.4 (md), micro
Local time
UTC
1986-06-27 13:36:57 UTC
Depth
0.8 km (0.5 mi), shallow
Epicenter
38.797° N, 122.813° 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
±0.20
Depth from
From location
Station coverage gap
115°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 171 in the 60 days after this one and 61 in the 30 days before it.

After

  1. 2.25 km SW of Cobb, California · 14703 days ago · 2 km deep · 4 km away
  2. 1.66 km NW of Clearlake Oaks, California · 14703 days ago · 24 km deep · 32 km away
  3. 2.04 km SSW of Cobb, California · 14703 days ago · 1 km deep · 5 km away
  4. 2.05 km SW of Cobb, California · 14702 days ago · 2 km deep · 4 km away
  5. 1.55 km SW of Cobb, California · 14702 days ago · 1 km deep · 3 km away
  6. 3.1near the coast of Northern California · 14702 days ago · 0 km deep · 69 km away
  7. 1.912 km W of Cobb, California · 14702 days ago · 2 km deep · 5 km away
  8. 2.45 km SW of Cobb, California · 14702 days ago · 0 km deep · 3 km away
  9. 1.65 km SW of Cobb, California · 14702 days ago · 0 km deep · 3 km away
  10. 1.814 km NNE of Angwin, California · 14701 days ago · -1 km deep · 39 km away
  11. 2.39 km ESE of Hopland, California · 14701 days ago · 27 km deep · 24 km away
  12. 1.87 km WSW of Cobb, California · 14701 days ago · 1 km deep · 0 km away
  13. 1.66 km W of Cobb, California · 14700 days ago · 3 km deep · 3 km away
  14. 1.77 km W of Cobb, California · 14700 days ago · 3 km deep · 2 km away
  15. 1.811 km NNE of Cloverdale, California · 14699 days ago · 3 km deep · 20 km away
  16. 2.55 km W of Cobb, California · 14699 days ago · 1 km deep · 4 km away
  17. 2.99 km ESE of Willits, California · 14699 days ago · 6 km deep · 75 km away
  18. 1.77 km W of Cobb, California · 14698 days ago · 3 km deep · 2 km away
  19. 2.27 km W of Cobb, California · 14698 days ago · 1 km deep · 2 km away
  20. 2.06 km WSW of Cobb, California · 14698 days ago · 4 km deep · 2 km away
  21. 1.52 km SSE of Cloverdale, California · 14697 days ago · 5 km deep · 17 km away
  22. 2.60 km NE of Larkfield-Wikiup, California · 14697 days ago · 3 km deep · 32 km away
  23. 1.86 km WSW of Cobb, California · 14697 days ago · 0 km deep · 2 km away
  24. 1.56 km W of Cobb, California · 14696 days ago · 3 km deep · 2 km away
  25. 1.85 km W of Cobb, California · 14695 days ago · -1 km deep · 4 km away
  26. 1.75 km WNW of Cobb, California · 14695 days ago · -1 km deep · 5 km away
  27. 1.66 km WNW of Cobb, California · 14695 days ago · 1 km deep · 4 km away
  28. 1.56 km SW of Cobb, California · 14694 days ago · 1 km deep · 3 km away
  29. 1.53 km N of Larkfield-Wikiup, California · 14694 days ago · 6 km deep · 28 km away
  30. 3.25 km SW of Cobb, California · 14694 days ago · 1 km deep · 3 km away
  31. 1.65 km W of Cobb, California · 14694 days ago · 0 km deep · 3 km away
  32. 1.77 km WSW of Cobb, California · 14693 days ago · 4 km deep · 1 km away
  33. 2.35 km W of Forestville, California · 14693 days ago · 0 km deep · 38 km away
  34. 1.77 km W of Cobb, California · 14693 days ago · 1 km deep · 2 km away
  35. 2.27 km W of Cobb, California · 14692 days ago · 2 km deep · 4 km away
  36. 1.89 km ESE of Willits, California · 14692 days ago · 8 km deep · 76 km away
  37. 2.17 km WSW of Cobb, California · 14692 days ago · 2 km deep · 1 km away
  38. 1.95 km WSW of Cobb, California · 14691 days ago · 1 km deep · 3 km away
  39. 2.56 km W of Cobb, California · 14691 days ago · 4 km deep · 3 km away
  40. 1.95 km SW of Hopland, California · 14691 days ago · 4 km deep · 34 km away
  41. 1.65 km WSW of Cobb, California · 14690 days ago · 3 km deep · 3 km away
  42. 1.8Northern California · 14690 days ago · -1 km deep · 4 km away
  43. 1.77 km W of Cobb, California · 14690 days ago · 3 km deep · 2 km away
  44. 1.77 km W of Cobb, California · 14690 days ago · 1 km deep · 3 km away
  45. 2.014 km NNE of Angwin, California · 14689 days ago · 1 km deep · 38 km away
  46. 3.36 km W of Cobb, California · 14689 days ago · 1 km deep · 4 km away
  47. 2.16 km W of Cobb, California · 14689 days ago · -1 km deep · 4 km away
  48. 1.66 km W of Cobb, California · 14689 days ago · 0 km deep · 4 km away
  49. 2.07 km WSW of Cobb, California · 14689 days ago · 4 km deep · 1 km away
  50. 1.75 km WSW of Cobb, California · 14689 days ago · 3 km deep · 3 km away
  51. 2.05 km SW of Cobb, California · 14688 days ago · 0 km deep · 5 km away
  52. 1.75 km SW of Cobb, California · 14687 days ago · 0 km deep · 4 km away
  53. 1.57 km W of Cobb, California · 14687 days ago · 0 km deep · 4 km away
  54. 1.76 km W of Cobb, California · 14687 days ago · 3 km deep · 3 km away
  55. 2.45 km WSW of Cobb, California · 14686 days ago · 0 km deep · 3 km away
  56. 1.85 km WSW of Cobb, California · 14686 days ago · 1 km deep · 3 km away
  57. 2.14 km SW of Cobb, California · 14686 days ago · 0 km deep · 4 km away
  58. 1.69 km WSW of Cobb, California · 14686 days ago · 2 km deep · 1 km away
  59. 1.811 km ESE of Hopland, California · 14686 days ago · -1 km deep · 23 km away
  60. 2.16 km WSW of Cobb, California · 14686 days ago · 0 km deep · 3 km away

The first 60 of 171.

Before

  1. 2.18 km WSW of Cobb, California · 14703 days ago · 1 km deep · 0 km away
  2. 1.68 km W of Cobb, California · 14704 days ago · 1 km deep · 2 km away
  3. 2.57 km WSW of Cobb, California · 14705 days ago · 0 km deep · 1 km away
  4. 2.67 km WSW of Cobb, California · 14705 days ago · 0 km deep · 1 km away
  5. 2.710 km SSE of Willows, California · 14705 days ago · 45 km deep · 91 km away
  6. 1.65 km SW of Cobb, California · 14706 days ago · 1 km deep · 3 km away
  7. 1.97 km W of Cobb, California · 14706 days ago · 3 km deep · 2 km away
  8. 2.26 km W of Cobb, California · 14707 days ago · 3 km deep · 3 km away
  9. 2.34 km S of Cobb, California · 14707 days ago · 0 km deep · 8 km away
  10. 2.37 km WSW of Cobb, California · 14707 days ago · 3 km deep · 1 km away
  11. 2.18 km ENE of Talmage, California · 14707 days ago · 23 km deep · 48 km away
  12. 1.95 km ENE of Black Point-Green Point, California · 14707 days ago · 12 km deep · 81 km away
  13. 2.914 km WSW of Guinda, California · 14708 days ago · 5 km deep · 41 km away
  14. 1.9Northern California · 14708 days ago · 1 km deep · 3 km away
  15. 1.710 km WSW of Cobb, California · 14708 days ago · -1 km deep · 2 km away
  16. 2.58 km WSW of Cobb, California · 14709 days ago · 3 km deep · 0 km away
  17. 2.48 km E of Lower Lake, California · 14710 days ago · 5 km deep · 29 km away
  18. 1.98 km E of Lower Lake, California · 14710 days ago · 6 km deep · 29 km away
  19. 1.98 km E of Lower Lake, California · 14710 days ago · 2 km deep · 29 km away
  20. 1.88 km E of Lower Lake, California · 14710 days ago · 1 km deep · 29 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc75482. Read Tue, Sep 29, 2026, 12:08 AM UTC.