California earthquakes

M1.9 earthquake 6 km W of Cobb, California

A magnitude 1.9 earthquake struck 6 km W of Cobb, California on Sun, Jun 15, 1986, 12:20 PM PDT (19:20 UTC), 3 km (2 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
1.9 (md), micro
Local time
UTC
1986-06-15 19:20:15 UTC
Depth
3.3 km (2.1 mi), shallow
Epicenter
38.821° N, 122.796° 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, 0.4 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
91°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 170 in the 60 days after this one and 69 in the 30 days before it.

After

  1. 1.97 km WSW of Cobb, California · 14717 days ago · 2 km deep · 2 km away
  2. 2.26 km SW of Cobb, California · 14716 days ago · -1 km deep · 5 km away
  3. 1.87 km SW of Brooktrails, California · 14716 days ago · 6 km deep · 84 km away
  4. 1.56 km ESE of Geyserville, California · 14715 days ago · 6 km deep · 16 km away
  5. 1.58 km W of Cobb, California · 14715 days ago · 1 km deep · 2 km away
  6. 1.65 km SW of Cobb, California · 14714 days ago · 0 km deep · 4 km away
  7. 2.04 km WNW of Glen Ellen, California · 14714 days ago · 9 km deep · 53 km away
  8. 2.35 km SW of Cobb, California · 14713 days ago · 0 km deep · 4 km away
  9. 2.85 km SW of Cobb, California · 14713 days ago · -1 km deep · 5 km away
  10. 1.80 km SSW of Crockett, California · 14712 days ago · 10 km deep · 100 km away
  11. 2.08 km WSW of Cobb, California · 14712 days ago · 3 km deep · 3 km away
  12. 1.88 km E of Lower Lake, California · 14711 days ago · 1 km deep · 27 km away
  13. 1.98 km E of Lower Lake, California · 14711 days ago · 2 km deep · 27 km away
  14. 1.98 km E of Lower Lake, California · 14711 days ago · 6 km deep · 27 km away
  15. 2.48 km E of Lower Lake, California · 14711 days ago · 5 km deep · 27 km away
  16. 2.58 km WSW of Cobb, California · 14710 days ago · 3 km deep · 3 km away
  17. 1.710 km WSW of Cobb, California · 14710 days ago · -1 km deep · 5 km away
  18. 1.9Northern California · 14710 days ago · 1 km deep · 2 km away
  19. 2.914 km WSW of Guinda, California · 14710 days ago · 5 km deep · 39 km away
  20. 1.95 km ENE of Black Point-Green Point, California · 14709 days ago · 12 km deep · 83 km away
  21. 2.18 km ENE of Talmage, California · 14709 days ago · 23 km deep · 46 km away
  22. 2.37 km WSW of Cobb, California · 14708 days ago · 3 km deep · 2 km away
  23. 2.34 km S of Cobb, California · 14708 days ago · 0 km deep · 8 km away
  24. 2.26 km W of Cobb, California · 14708 days ago · 3 km deep · 0 km away
  25. 1.97 km W of Cobb, California · 14708 days ago · 3 km deep · 1 km away
  26. 1.65 km SW of Cobb, California · 14708 days ago · 1 km deep · 4 km away
  27. 2.710 km SSE of Willows, California · 14707 days ago · 45 km deep · 88 km away
  28. 2.67 km WSW of Cobb, California · 14706 days ago · 0 km deep · 2 km away
  29. 2.57 km WSW of Cobb, California · 14706 days ago · 0 km deep · 2 km away
  30. 1.68 km W of Cobb, California · 14706 days ago · 1 km deep · 2 km away
  31. 2.18 km WSW of Cobb, California · 14705 days ago · 1 km deep · 3 km away
  32. 2.48 km WSW of Cobb, California · 14705 days ago · 1 km deep · 3 km away
  33. 2.25 km SW of Cobb, California · 14705 days ago · 2 km deep · 4 km away
  34. 1.66 km NW of Clearlake Oaks, California · 14704 days ago · 24 km deep · 29 km away
  35. 2.04 km SSW of Cobb, California · 14704 days ago · 1 km deep · 5 km away
  36. 2.05 km SW of Cobb, California · 14704 days ago · 2 km deep · 4 km away
  37. 1.55 km SW of Cobb, California · 14704 days ago · 1 km deep · 4 km away
  38. 3.1near the coast of Northern California · 14703 days ago · 0 km deep · 68 km away
  39. 1.912 km W of Cobb, California · 14703 days ago · 2 km deep · 6 km away
  40. 2.45 km SW of Cobb, California · 14703 days ago · 0 km deep · 4 km away
  41. 1.65 km SW of Cobb, California · 14703 days ago · 0 km deep · 4 km away
  42. 1.814 km NNE of Angwin, California · 14703 days ago · -1 km deep · 38 km away
  43. 2.39 km ESE of Hopland, California · 14702 days ago · 27 km deep · 23 km away
  44. 1.87 km WSW of Cobb, California · 14702 days ago · 1 km deep · 3 km away
  45. 1.66 km W of Cobb, California · 14702 days ago · 3 km deep · 0 km away
  46. 1.77 km W of Cobb, California · 14701 days ago · 3 km deep · 2 km away
  47. 1.811 km NNE of Cloverdale, California · 14700 days ago · 3 km deep · 19 km away
  48. 2.55 km W of Cobb, California · 14700 days ago · 1 km deep · 1 km away
  49. 2.99 km ESE of Willits, California · 14700 days ago · 6 km deep · 73 km away
  50. 1.77 km W of Cobb, California · 14700 days ago · 3 km deep · 1 km away
  51. 2.27 km W of Cobb, California · 14700 days ago · 1 km deep · 2 km away
  52. 2.06 km WSW of Cobb, California · 14699 days ago · 4 km deep · 2 km away
  53. 1.52 km SSE of Cloverdale, California · 14699 days ago · 5 km deep · 19 km away
  54. 2.60 km NE of Larkfield-Wikiup, California · 14698 days ago · 3 km deep · 34 km away
  55. 1.86 km WSW of Cobb, California · 14698 days ago · 0 km deep · 2 km away
  56. 1.56 km W of Cobb, California · 14697 days ago · 3 km deep · 1 km away
  57. 1.85 km W of Cobb, California · 14696 days ago · -1 km deep · 1 km away
  58. 1.75 km WNW of Cobb, California · 14696 days ago · -1 km deep · 2 km away
  59. 1.66 km WNW of Cobb, California · 14696 days ago · 1 km deep · 1 km away
  60. 1.56 km SW of Cobb, California · 14696 days ago · 1 km deep · 4 km away

The first 60 of 170.

Before

  1. 1.719 km NE of Potter Valley, California · 14717 days ago · 4 km deep · 70 km away
  2. 2.09 km WSW of Cobb, California · 14718 days ago · 2 km deep · 3 km away
  3. 1.8Northern California · 14718 days ago · 1 km deep · 4 km away
  4. 2.07 km W of Cobb, California · 14719 days ago · 3 km deep · 1 km away
  5. 1.55 km WSW of Cobb, California · 14720 days ago · 0 km deep · 3 km away
  6. 2.15 km WSW of Cobb, California · 14720 days ago · 1 km deep · 3 km away
  7. 3.24 km WSW of Hopland, California · 14720 days ago · 5 km deep · 35 km away
  8. 1.55 km SW of Cobb, California · 14722 days ago · 2 km deep · 4 km away
  9. 2.29 km WSW of Cobb, California · 14724 days ago · 2 km deep · 4 km away
  10. 1.52 km E of Clear Lake Riviera, California · 14724 days ago · 3 km deep · 18 km away
  11. 2.08 km WSW of Geyserville, California · 14724 days ago · 4 km deep · 24 km away
  12. 1.96 km W of Cobb, California · 14725 days ago · -1 km deep · 1 km away
  13. 1.614 km ENE of Angwin, California · 14725 days ago · 4 km deep · 47 km away
  14. 1.73 km W of Cobb, California · 14725 days ago · 0 km deep · 3 km away
  15. 1.813 km NE of Upper Lake, California · 14725 days ago · 10 km deep · 49 km away
  16. 1.56 km W of Cobb, California · 14727 days ago · -1 km deep · 1 km away
  17. 1.64 km W of Cobb, California · 14729 days ago · 0 km deep · 2 km away
  18. 2.25 km SW of Cobb, California · 14730 days ago · 2 km deep · 4 km away
  19. 1.76 km WSW of Cobb, California · 14730 days ago · 2 km deep · 3 km away
  20. 1.92 km SW of Cobb, California · 14731 days ago · 1 km deep · 5 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc74763. Read Wed, Sep 30, 2026, 12:12 PM UTC.