California earthquakes

M1.8 earthquake 9 km ESE of Willits, California

A magnitude 1.8 earthquake struck 9 km ESE of Willits, California on Mon, Sep 2, 1985, 6:42 AM PDT (13:42 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M2.1 6 km W of Cobb, California. This one was a foreshock.

Willits 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
1.8 (md), micro
Local time
UTC
1985-09-02 13:42:43 UTC
Depth
8.3 km (5.1 mi), shallow
Epicenter
39.392° N, 123.245° 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 0.4 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
138°
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 181 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.16 km W of Cobb, California · 14990 days ago · 2 km deep · 75 km away
  2. 1.65 km WSW of Cobb, California · 14990 days ago · 1 km deep · 76 km away
  3. 2.74 km WSW of Cobb, California · 14990 days ago · 2 km deep · 76 km away
  4. 1.85 km SW of Cobb, California · 14990 days ago · 0 km deep · 78 km away
  5. 1.74 km SSW of Cobb, California · 14990 days ago · 2 km deep · 81 km away
  6. 1.98 km W of Cobb, California · 14988 days ago · 1 km deep · 73 km away
  7. 1.59 km ESE of Hidden Valley Lake, California · 14988 days ago · 4 km deep · 97 km away
  8. 1.89 km W of Cobb, California · 14988 days ago · 1 km deep · 74 km away
  9. 1.78 km W of Cobb, California · 14988 days ago · 0 km deep · 74 km away
  10. 1.99 km NW of Cobb, California · 14988 days ago · 1 km deep · 69 km away
  11. 1.63 km SW of Cobb, California · 14987 days ago · 0 km deep · 79 km away
  12. 2.010 km NW of Cobb, California · 14987 days ago · 0 km deep · 68 km away
  13. 2.06 km W of Cobb, California · 14987 days ago · 1 km deep · 75 km away
  14. 1.920 km NE of Upper Lake, California · 14987 days ago · -1 km deep · 42 km away
  15. 1.58 km WSW of Cobb, California · 14986 days ago · 0 km deep · 75 km away
  16. 1.96 km W of Cobb, California · 14986 days ago · 4 km deep · 74 km away
  17. 1.98 km W of Cobb, California · 14985 days ago · 1 km deep · 73 km away
  18. 1.812 km NE of Upper Lake, California · 14985 days ago · 2 km deep · 42 km away
  19. 2.16 km NE of Windsor, California · 14985 days ago · 5 km deep · 98 km away
  20. 2.2Northern California · 14985 days ago · 2 km deep · 42 km away
  21. 1.66 km W of Cobb, California · 14984 days ago · 0 km deep · 74 km away
  22. 2.512 km NE of Upper Lake, California · 14984 days ago · 3 km deep · 42 km away
  23. 1.64 km W of Cobb, California · 14984 days ago · 0 km deep · 75 km away
  24. 1.68 km W of Cobb, California · 14984 days ago · 1 km deep · 73 km away
  25. 1.65 km W of Cobb, California · 14984 days ago · 1 km deep · 75 km away
  26. 1.812 km NE of Upper Lake, California · 14984 days ago · 2 km deep · 42 km away
  27. 1.85 km W of Cobb, California · 14983 days ago · 0 km deep · 75 km away
  28. 1.612 km NE of Upper Lake, California · 14983 days ago · 4 km deep · 41 km away
  29. 1.94 km WSW of Cobb, California · 14983 days ago · 1 km deep · 77 km away
  30. 2.36 km W of Cobb, California · 14983 days ago · 3 km deep · 74 km away
  31. 1.86 km W of Cobb, California · 14982 days ago · 3 km deep · 74 km away
  32. 1.66 km WNW of Cobb, California · 14982 days ago · 1 km deep · 73 km away
  33. 1.78 km WNW of Cobb, California · 14982 days ago · -1 km deep · 70 km away
  34. 1.66 km W of Cobb, California · 14982 days ago · 3 km deep · 75 km away
  35. 3.67 km W of Cobb, California · 14982 days ago · 10 km deep · 73 km away
  36. 2.15 km SW of Cobb, California · 14981 days ago · -1 km deep · 79 km away
  37. 1.95 km SW of Cobb, California · 14981 days ago · 0 km deep · 79 km away
  38. 1.76 km W of Cobb, California · 14981 days ago · 2 km deep · 75 km away
  39. 1.95 km SW of Cobb, California · 14981 days ago · 0 km deep · 79 km away
  40. 1.86 km WSW of Cobb, California · 14981 days ago · 4 km deep · 76 km away
  41. 2.110 km E of Comptche, California · 14981 days ago · 8 km deep · 25 km away
  42. 1.65 km SW of Cobb, California · 14981 days ago · 0 km deep · 79 km away
  43. 2.55 km SW of Cobb, California · 14981 days ago · 1 km deep · 79 km away
  44. 1.66 km SW of Cobb, California · 14980 days ago · 0 km deep · 79 km away
  45. 1.85 km E of Clearlake Oaks, California · 14979 days ago · -1 km deep · 69 km away
  46. 2.14 km SW of Cobb, California · 14979 days ago · -1 km deep · 78 km away
  47. 1.610 km NW of Cobb, California · 14978 days ago · 1 km deep · 68 km away
  48. 1.86 km WSW of Cobb, California · 14978 days ago · 1 km deep · 75 km away
  49. 1.97 km W of Cobb, California · 14978 days ago · 0 km deep · 75 km away
  50. 2.16 km W of Cobb, California · 14978 days ago · 1 km deep · 73 km away
  51. 1.86 km SW of Hopland, California · 14977 days ago · 4 km deep · 51 km away
  52. 2.27 km W of Cobb, California · 14977 days ago · 3 km deep · 75 km away
  53. 2.127 km ESE of Covelo, California · 14977 days ago · 4 km deep · 41 km away
  54. 1.71 km SW of Redway, California · 14977 days ago · 19 km deep · 94 km away
  55. 1.95 km SW of Cobb, California · 14977 days ago · 2 km deep · 79 km away
  56. 2.46 km W of Cobb, California · 14976 days ago · 1 km deep · 74 km away
  57. 1.99 km W of Cobb, California · 14975 days ago · 0 km deep · 73 km away
  58. 1.57 km WSW of Cobb, California · 14975 days ago · 0 km deep · 76 km away
  59. 1.63 km SW of Cobb, California · 14975 days ago · 1 km deep · 79 km away
  60. 1.57 km W of Cobb, California · 14974 days ago · 1 km deep · 73 km away

The first 60 of 181.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1130953. Read Tue, Sep 22, 2026, 8:09 PM UTC.