California earthquakes

M1.9 earthquake 8 km WNW of Cobb, California

A magnitude 1.9 earthquake struck 8 km WNW of Cobb, California on Sun, Mar 2, 1986, 11:58 PM PST (07:58 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
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1986-03-03 07:58:36 UTC
Depth
0.5 km (0.3 mi), shallow
Epicenter
38.850° N, 122.817° 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, 1.1 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
56°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 175 in the 60 days after this one and 91 in the 30 days before it.

After

  1. 1.67 km W of Cobb, California · 14826 days ago · 4 km deep · 4 km away
  2. 1.87 km W of Cobb, California · 14825 days ago · 3 km deep · 4 km away
  3. 1.77 km W of Cobb, California · 14825 days ago · 3 km deep · 4 km away
  4. 1.97 km WSW of Cobb, California · 14825 days ago · 0 km deep · 6 km away
  5. 1.59 km NNE of Larkfield-Wikiup, California · 14825 days ago · 1 km deep · 29 km away
  6. 2.25 km W of Cobb, California · 14825 days ago · -1 km deep · 4 km away
  7. 1.56 km SW of Cobb, California · 14825 days ago · 2 km deep · 7 km away
  8. 2.23 km SSW of Guinda, California · 14825 days ago · 6 km deep · 52 km away
  9. 1.610 km N of Cloverdale, California · 14824 days ago · -1 km deep · 18 km away
  10. 1.65 km WSW of Cobb, California · 14824 days ago · 3 km deep · 6 km away
  11. 1.97 km WSW of Cobb, California · 14823 days ago · 0 km deep · 5 km away
  12. 2.119 km NNE of Upper Lake, California · 14823 days ago · 0 km deep · 53 km away
  13. 2.119 km NNE of Upper Lake, California · 14823 days ago · 5 km deep · 53 km away
  14. 2.26 km W of Cobb, California · 14823 days ago · -1 km deep · 3 km away
  15. 1.71 km SE of Clear Lake Riviera, California · 14823 days ago · 2 km deep · 14 km away
  16. 1.96 km SSW of Calistoga, California · 14822 days ago · 4 km deep · 40 km away
  17. 2.3Northern California · 14822 days ago · 4 km deep · 5 km away
  18. 2.58 km W of Cobb, California · 14822 days ago · 1 km deep · 4 km away
  19. 1.89 km W of Cobb, California · 14822 days ago · -1 km deep · 4 km away
  20. 1.67 km SSE of Cloverdale, California · 14821 days ago · 2 km deep · 18 km away
  21. 2.18 km W of Cobb, California · 14820 days ago · 1 km deep · 3 km away
  22. 1.87 km WSW of Cobb, California · 14820 days ago · 1 km deep · 7 km away
  23. 1.78 km W of Cobb, California · 14820 days ago · 1 km deep · 4 km away
  24. 2.06 km WSW of Cobb, California · 14820 days ago · 1 km deep · 5 km away
  25. 1.74 km WSW of Cobb, California · 14819 days ago · 0 km deep · 7 km away
  26. 1.85 km SW of Cobb, California · 14819 days ago · -1 km deep · 8 km away
  27. 1.75 km SW of Cobb, California · 14819 days ago · 1 km deep · 8 km away
  28. 2.18 km ESE of Willits, California · 14818 days ago · 3 km deep · 70 km away
  29. 2.38 km WSW of Cobb, California · 14818 days ago · 1 km deep · 5 km away
  30. 2.45 km WSW of Cobb, California · 14818 days ago · 4 km deep · 6 km away
  31. 1.76 km W of Cobb, California · 14817 days ago · 2 km deep · 5 km away
  32. 1.96 km W of Cobb, California · 14817 days ago · 2 km deep · 4 km away
  33. 2.05 km SW of Cobb, California · 14816 days ago · 0 km deep · 8 km away
  34. 1.66 km W of Cobb, California · 14816 days ago · 3 km deep · 4 km away
  35. 1.76 km NE of Willits, California · 14816 days ago · 7 km deep · 79 km away
  36. 2.25 km SW of Cobb, California · 14816 days ago · 0 km deep · 7 km away
  37. 2.06 km W of Cobb, California · 14815 days ago · 1 km deep · 3 km away
  38. 1.68 km W of Cobb, California · 14815 days ago · -1 km deep · 4 km away
  39. 1.77 km WSW of Cobb, California · 14815 days ago · 1 km deep · 6 km away
  40. 1.66 km W of Cobb, California · 14815 days ago · 3 km deep · 4 km away
  41. 1.53 km WNW of Cobb, California · 14815 days ago · 1 km deep · 5 km away
  42. 1.87 km WSW of Cobb, California · 14814 days ago · 1 km deep · 5 km away
  43. 1.84 km S of Cobb, California · 14814 days ago · 0 km deep · 11 km away
  44. 2.44 km SW of Cobb, California · 14813 days ago · 1 km deep · 7 km away
  45. 1.76 km W of Cobb, California · 14813 days ago · 0 km deep · 4 km away
  46. 2.27 km W of Cobb, California · 14813 days ago · 2 km deep · 3 km away
  47. 2.625 km ENE of Potter Valley, California · 14813 days ago · 10 km deep · 64 km away
  48. 2.15 km W of Cobb, California · 14813 days ago · 0 km deep · 4 km away
  49. 2.25 km WSW of Cobb, California · 14812 days ago · 0 km deep · 7 km away
  50. 1.74 km ESE of Clear Lake Riviera, California · 14812 days ago · 2 km deep · 16 km away
  51. 1.74 km W of Cobb, California · 14812 days ago · 1 km deep · 4 km away
  52. 2.24 km SW of Cobb, California · 14812 days ago · 0 km deep · 8 km away
  53. 1.96 km W of Cobb, California · 14811 days ago · 3 km deep · 4 km away
  54. 1.84 km W of Cobb, California · 14811 days ago · 1 km deep · 4 km away
  55. 1.84 km W of Cobb, California · 14811 days ago · -1 km deep · 5 km away
  56. 2.07 km WSW of Cobb, California · 14811 days ago · 0 km deep · 6 km away
  57. 1.76 km WNW of Cobb, California · 14810 days ago · 1 km deep · 3 km away
  58. 1.77 km W of Cobb, California · 14810 days ago · 3 km deep · 4 km away
  59. 1.83 km SW of Cobb, California · 14810 days ago · 1 km deep · 8 km away
  60. 1.67 km WSW of Cobb, California · 14810 days ago · 1 km deep · 5 km away

The first 60 of 175.

Before

  1. 1.719 km NE of Upper Lake, California · 14826 days ago · 9 km deep · 51 km away
  2. 2.46 km W of Cobb, California · 14827 days ago · 4 km deep · 3 km away
  3. 2.25 km WSW of Cobb, California · 14827 days ago · 1 km deep · 6 km away
  4. 2.36 km ENE of Rohnert Park, California · 14827 days ago · 6 km deep · 58 km away
  5. 1.812 km ENE of Lower Lake, California · 14828 days ago · 11 km deep · 31 km away
  6. 2.22 km ENE of Calpella, California · 14828 days ago · 6 km deep · 53 km away
  7. 1.5Northern California · 14829 days ago · 1 km deep · 5 km away
  8. 2.27 km WSW of Cobb, California · 14830 days ago · 0 km deep · 5 km away
  9. 1.57 km WSW of Cobb, California · 14831 days ago · 0 km deep · 5 km away
  10. 1.87 km W of Cobb, California · 14831 days ago · 1 km deep · 3 km away
  11. 1.65 km WSW of Cobb, California · 14831 days ago · 4 km deep · 6 km away
  12. 1.85 km S of Moskowite Corner, California · 14831 days ago · 2 km deep · 74 km away
  13. 1.821 km NE of Potter Valley, California · 14832 days ago · 6 km deep · 68 km away
  14. 2.37 km WSW of Cobb, California · 14832 days ago · 2 km deep · 5 km away
  15. 2.35 km WSW of Cobb, California · 14833 days ago · 1 km deep · 6 km away
  16. 1.95 km WSW of Cobb, California · 14833 days ago · 1 km deep · 6 km away
  17. 1.5Northern California · 14833 days ago · 1 km deep · 3 km away
  18. 1.96 km W of Cobb, California · 14834 days ago · -1 km deep · 5 km away
  19. 2.56 km ENE of Williams, California · 14834 days ago · 4 km deep · 73 km away
  20. 1.85 km WSW of Cobb, California · 14834 days ago · -1 km deep · 6 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1136384. Read Mon, Oct 5, 2026, 12:48 PM UTC.