California earthquakes

M2.5 earthquake 5 km SW of Cobb, California

A magnitude 2.5 earthquake struck 5 km SW of Cobb, California on Sun, May 18, 1986, 12:32 PM PDT (19:32 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.3 6 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
1986-05-18 19:32:06 UTC
Depth
0.3 km (0.2 mi), shallow
Epicenter
38.783° N, 122.762° 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, 0.6 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
130°
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: 163 in the 60 days after this one and 91 in the 30 days before it.

After

  1. 2.57 km WSW of Cobb, California · 14747 days ago · -1 km deep · 3 km away
  2. 1.97 km W of Cobb, California · 14747 days ago · 3 km deep · 6 km away
  3. 2.57 km ENE of Brooktrails, California · 14747 days ago · 4 km deep · 89 km away
  4. 2.86 km W of Cobb, California · 14747 days ago · 3 km deep · 5 km away
  5. 1.57 km WSW of Cobb, California · 14746 days ago · 3 km deep · 5 km away
  6. 2.412 km ESE of Hidden Valley Lake, California · 14746 days ago · -1 km deep · 30 km away
  7. 2.16 km W of Cobb, California · 14746 days ago · 2 km deep · 5 km away
  8. 1.67 km W of Cobb, California · 14746 days ago · -1 km deep · 5 km away
  9. 2.26 km WNW of Cobb, California · 14745 days ago · -1 km deep · 7 km away
  10. 1.57 km W of Cobb, California · 14745 days ago · 3 km deep · 5 km away
  11. 1.86 km SW of Cobb, California · 14745 days ago · 1 km deep · 1 km away
  12. 2.59 km W of Cobb, California · 14745 days ago · 0 km deep · 7 km away
  13. 1.55 km WSW of Cobb, California · 14745 days ago · 3 km deep · 4 km away
  14. 1.69 km W of Cobb, California · 14745 days ago · 2 km deep · 9 km away
  15. 1.911 km NNE of Geyserville, California · 14744 days ago · 3 km deep · 9 km away
  16. 1.66 km W of Cobb, California · 14744 days ago · 3 km deep · 5 km away
  17. 1.68 km W of Cobb, California · 14744 days ago · 2 km deep · 7 km away
  18. 1.65 km WNW of Cobb, California · 14744 days ago · 1 km deep · 6 km away
  19. 2.4Northern California · 14743 days ago · 1 km deep · 4 km away
  20. 2.47 km WSW of Cobb, California · 14743 days ago · 3 km deep · 4 km away
  21. 1.610 km SSW of Kelseyville, California · 14743 days ago · 1 km deep · 15 km away
  22. 2.16 km W of Cobb, California · 14742 days ago · 3 km deep · 5 km away
  23. 2.16 km WSW of Cobb, California · 14741 days ago · 2 km deep · 4 km away
  24. 3.26 km W of Cobb, California · 14741 days ago · 3 km deep · 5 km away
  25. 2.06 km SW of Cobb, California · 14740 days ago · 2 km deep · 1 km away
  26. 1.56 km W of Cobb, California · 14739 days ago · 3 km deep · 5 km away
  27. 3.16 km W of Cobb, California · 14739 days ago · 3 km deep · 5 km away
  28. 1.85 km SW of Cobb, California · 14739 days ago · -1 km deep · 1 km away
  29. 2.67 km W of Cobb, California · 14739 days ago · 3 km deep · 5 km away
  30. 1.65 km WNW of Cobb, California · 14739 days ago · -1 km deep · 6 km away
  31. 1.76 km WNW of Healdsburg, California · 14739 days ago · 4 km deep · 22 km away
  32. 1.818 km NNE of Upper Lake, California · 14738 days ago · 4 km deep · 58 km away
  33. 1.74 km WSW of Cobb, California · 14738 days ago · -1 km deep · 3 km away
  34. 2.14 km WSW of Cobb, California · 14737 days ago · -1 km deep · 2 km away
  35. 1.76 km W of Cobb, California · 14737 days ago · 1 km deep · 6 km away
  36. 1.65 km W of Cobb, California · 14737 days ago · 0 km deep · 5 km away
  37. 2.45 km SSW of Cobb, California · 14736 days ago · 0 km deep · 1 km away
  38. 2.35 km SW of Cobb, California · 14736 days ago · 0 km deep · 1 km away
  39. 2.65 km SW of Cobb, California · 14735 days ago · 4 km deep · 1 km away
  40. 1.96 km W of Cobb, California · 14735 days ago · 4 km deep · 6 km away
  41. 1.91 km NW of Clearlake, California · 14735 days ago · 40 km deep · 23 km away
  42. 1.97 km W of Cobb, California · 14734 days ago · 4 km deep · 5 km away
  43. 1.92 km SW of Cobb, California · 14733 days ago · 1 km deep · 3 km away
  44. 1.76 km WSW of Cobb, California · 14733 days ago · 2 km deep · 3 km away
  45. 2.25 km SW of Cobb, California · 14732 days ago · 2 km deep · 1 km away
  46. 1.64 km W of Cobb, California · 14732 days ago · 0 km deep · 4 km away
  47. 1.56 km W of Cobb, California · 14729 days ago · -1 km deep · 6 km away
  48. 1.813 km NE of Upper Lake, California · 14728 days ago · 10 km deep · 53 km away
  49. 1.73 km W of Cobb, California · 14728 days ago · 0 km deep · 5 km away
  50. 1.614 km ENE of Angwin, California · 14728 days ago · 4 km deep · 42 km away
  51. 1.96 km W of Cobb, California · 14728 days ago · -1 km deep · 6 km away
  52. 2.08 km WSW of Geyserville, California · 14727 days ago · 4 km deep · 23 km away
  53. 1.52 km E of Clear Lake Riviera, California · 14727 days ago · 3 km deep · 20 km away
  54. 2.29 km WSW of Cobb, California · 14727 days ago · 2 km deep · 5 km away
  55. 1.55 km SW of Cobb, California · 14725 days ago · 2 km deep · 1 km away
  56. 3.24 km WSW of Hopland, California · 14723 days ago · 5 km deep · 39 km away
  57. 2.15 km WSW of Cobb, California · 14722 days ago · 1 km deep · 2 km away
  58. 1.55 km WSW of Cobb, California · 14722 days ago · 0 km deep · 2 km away
  59. 2.07 km W of Cobb, California · 14722 days ago · 3 km deep · 6 km away
  60. 1.8Northern California · 14721 days ago · 1 km deep · 1 km away

The first 60 of 163.

Before

  1. 2.811 km ESE of Hopland, California · 14748 days ago · 0 km deep · 26 km away
  2. 1.88 km W of Cobb, California · 14748 days ago · 3 km deep · 6 km away
  3. 2.55 km SW of Cobb, California · 14748 days ago · 1 km deep · 1 km away
  4. 1.66 km W of Cobb, California · 14748 days ago · 0 km deep · 5 km away
  5. 1.66 km ESE of Geyserville, California · 14749 days ago · 6 km deep · 13 km away
  6. 1.65 km W of Willows, California · 14749 days ago · 5 km deep · 92 km away
  7. 2.213 km NNW of Moskowite Corner, California · 14750 days ago · 3 km deep · 50 km away
  8. 2.513 km NNW of Moskowite Corner, California · 14750 days ago · 6 km deep · 50 km away
  9. 2.413 km NNW of Moskowite Corner, California · 14751 days ago · 11 km deep · 51 km away
  10. 2.86 km W of Cobb, California · 14751 days ago · 2 km deep · 5 km away
  11. 2.02 km S of Clearlake, California · 14751 days ago · 5 km deep · 21 km away
  12. 2.45 km WSW of Cobb, California · 14751 days ago · 3 km deep · 3 km away
  13. 2.25 km WSW of Cobb, California · 14751 days ago · 4 km deep · 2 km away
  14. 1.64 km WSW of Cobb, California · 14752 days ago · 2 km deep · 2 km away
  15. 2.16 km W of Cobb, California · 14752 days ago · 4 km deep · 6 km away
  16. 2.17 km WSW of Cobb, California · 14753 days ago · 1 km deep · 4 km away
  17. 2.07 km W of Cobb, California · 14753 days ago · 3 km deep · 6 km away
  18. 1.723 km ENE of Potter Valley, California · 14753 days ago · 9 km deep · 70 km away
  19. 3.06 km WSW of Cobb, California · 14754 days ago · -1 km deep · 3 km away
  20. 1.76 km W of Cobb, California · 14755 days ago · 0 km deep · 6 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc72923. Read Sat, Oct 3, 2026, 5:08 AM UTC.