California earthquakes

M2.0 earthquake 9 km WNW of Arbuckle, California

A magnitude 2.0 earthquake struck 9 km WNW of Arbuckle, California on Tue, Sep 17, 1985, 9:03 PM PDT (04:03 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.1 5 km NW of Cobb, California. This one was a foreshock.

Arbuckle 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
2.0 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1985-09-18 04:03:51 UTC
Depth
4.8 km (3.0 mi), shallow
Epicenter
39.063° N, 122.145° 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 2.8 km horizontally, 7.7 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
240°, poorly surrounded by stations
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 176 in the 60 days after this one and 135 in the 30 days before it.

After

  1. 2.07 km ESE of Williams, California · 14989 days ago · 8 km deep · 10 km away
  2. 2.36 km ENE of Williams, California · 14989 days ago · 16 km deep · 13 km away
  3. 1.66 km SW of Cobb, California · 14989 days ago · 0 km deep · 63 km away
  4. 1.85 km E of Clearlake Oaks, California · 14988 days ago · -1 km deep · 40 km away
  5. 2.14 km SW of Cobb, California · 14987 days ago · -1 km deep · 61 km away
  6. 1.610 km NW of Cobb, California · 14987 days ago · 1 km deep · 61 km away
  7. 2.013 km SW of Durham, California · 14987 days ago · 18 km deep · 60 km away
  8. 1.86 km WSW of Cobb, California · 14987 days ago · 1 km deep · 63 km away
  9. 1.97 km W of Cobb, California · 14987 days ago · 0 km deep · 64 km away
  10. 2.16 km W of Cobb, California · 14987 days ago · 1 km deep · 62 km away
  11. 1.86 km SW of Hopland, California · 14986 days ago · 4 km deep · 90 km away
  12. 2.27 km W of Cobb, California · 14986 days ago · 3 km deep · 63 km away
  13. 2.127 km ESE of Covelo, California · 14986 days ago · 4 km deep · 99 km away
  14. 1.95 km SW of Cobb, California · 14986 days ago · 2 km deep · 62 km away
  15. 2.46 km W of Cobb, California · 14985 days ago · 1 km deep · 62 km away
  16. 1.99 km W of Cobb, California · 14984 days ago · 0 km deep · 66 km away
  17. 1.57 km WSW of Cobb, California · 14984 days ago · 0 km deep · 64 km away
  18. 1.63 km SW of Cobb, California · 14984 days ago · 1 km deep · 60 km away
  19. 1.57 km W of Cobb, California · 14983 days ago · 1 km deep · 63 km away
  20. 1.65 km WSW of Cobb, California · 14983 days ago · 1 km deep · 62 km away
  21. 1.85 km NNE of Windsor, California · 14983 days ago · 5 km deep · 76 km away
  22. 2.36 km NNE of Windsor, California · 14983 days ago · 1 km deep · 76 km away
  23. 2.510 km N of Cloverdale, California · 14983 days ago · -1 km deep · 76 km away
  24. 3.15 km WSW of Cobb, California · 14982 days ago · -1 km deep · 62 km away
  25. 1.95 km WSW of Cobb, California · 14982 days ago · 0 km deep · 62 km away
  26. 1.64 km S of Cobb, California · 14982 days ago · 2 km deep · 59 km away
  27. 2.55 km SW of Cobb, California · 14982 days ago · 0 km deep · 62 km away
  28. 2.19 km ENE of Hopland, California · 14982 days ago · 23 km deep · 75 km away
  29. 2.05 km S of Moskowite Corner, California · 14981 days ago · 8 km deep · 74 km away
  30. 2.47 km W of Cobb, California · 14981 days ago · 3 km deep · 64 km away
  31. 1.75 km SW of Cobb, California · 14981 days ago · 1 km deep · 62 km away
  32. 1.97 km ENE of Clearlake, California · 14981 days ago · 3 km deep · 36 km away
  33. 1.77 km W of Cobb, California · 14981 days ago · 3 km deep · 64 km away
  34. 2.52 km E of Moskowite Corner, California · 14981 days ago · 4 km deep · 69 km away
  35. 1.63 km NE of Santa Rosa, California · 14980 days ago · 2 km deep · 81 km away
  36. 2.28 km W of Cobb, California · 14979 days ago · 1 km deep · 64 km away
  37. 1.51 km ESE of Clear Lake Riviera, California · 14979 days ago · 1 km deep · 50 km away
  38. 1.64 km ESE of Moskowite Corner, California · 14979 days ago · 5 km deep · 71 km away
  39. 2.06 km W of Cobb, California · 14978 days ago · 2 km deep · 63 km away
  40. 1.76 km W of Cobb, California · 14978 days ago · 3 km deep · 62 km away
  41. 1.74 km S of Cobb, California · 14978 days ago · 2 km deep · 59 km away
  42. 1.64 km S of Cobb, California · 14978 days ago · 2 km deep · 59 km away
  43. 1.65 km SW of Cobb, California · 14977 days ago · 1 km deep · 62 km away
  44. 2.019 km N of Upper Lake, California · 14977 days ago · 5 km deep · 70 km away
  45. 1.89 km W of Cobb, California · 14975 days ago · 0 km deep · 65 km away
  46. 1.74 km WSW of Cobb, California · 14975 days ago · 1 km deep · 61 km away
  47. 1.98 km WSW of Cobb, California · 14974 days ago · 1 km deep · 64 km away
  48. 1.64 km SE of Larkfield-Wikiup, California · 14974 days ago · 8 km deep · 80 km away
  49. 1.812 km WNW of Calistoga, California · 14974 days ago · 8 km deep · 68 km away
  50. 2.58 km W of Cobb, California · 14972 days ago · 1 km deep · 65 km away
  51. 1.64 km NW of Redwood Valley, California · 14972 days ago · 7 km deep · 98 km away
  52. 2.34 km WSW of Cobb, California · 14972 days ago · 1 km deep · 61 km away
  53. 1.711 km NW of Moskowite Corner, California · 14971 days ago · 4 km deep · 64 km away
  54. 2.25 km WSW of Cobb, California · 14971 days ago · 1 km deep · 62 km away
  55. 1.86 km SSE of Moskowite Corner, California · 14971 days ago · 5 km deep · 74 km away
  56. 2.24 km W of Cobb, California · 14970 days ago · 0 km deep · 61 km away
  57. 3.28 km SE of Hopland, California · 14970 days ago · 4 km deep · 79 km away
  58. 1.58 km SE of Hopland, California · 14970 days ago · 1 km deep · 79 km away
  59. 2.48 km SE of Hopland, California · 14969 days ago · 2 km deep · 79 km away
  60. 2.56 km W of Cobb, California · 14969 days ago · 3 km deep · 63 km away

The first 60 of 176.

Before

  1. 2.55 km ENE of Williams, California · 14989 days ago · 10 km deep · 14 km away
  2. 2.55 km SW of Cobb, California · 14989 days ago · 1 km deep · 62 km away
  3. 1.65 km SW of Cobb, California · 14990 days ago · 0 km deep · 62 km away
  4. 1.86 km WSW of Cobb, California · 14990 days ago · 4 km deep · 63 km away
  5. 1.910 km NNW of Moskowite Corner, California · 14990 days ago · 9 km deep · 59 km away
  6. 1.95 km SW of Cobb, California · 14990 days ago · 0 km deep · 62 km away
  7. 1.76 km W of Cobb, California · 14990 days ago · 2 km deep · 63 km away
  8. 1.95 km SW of Cobb, California · 14990 days ago · 0 km deep · 62 km away
  9. 2.15 km SW of Cobb, California · 14990 days ago · -1 km deep · 62 km away
  10. 3.67 km W of Cobb, California · 14991 days ago · 10 km deep · 64 km away
  11. 1.66 km W of Cobb, California · 14991 days ago · 3 km deep · 62 km away
  12. 1.86 km E of Williams, California · 14991 days ago · 4 km deep · 12 km away
  13. 2.05 km NE of Williams, California · 14991 days ago · 18 km deep · 14 km away
  14. 1.78 km WNW of Cobb, California · 14991 days ago · -1 km deep · 61 km away
  15. 1.66 km WNW of Cobb, California · 14991 days ago · 1 km deep · 61 km away
  16. 1.86 km W of Cobb, California · 14991 days ago · 3 km deep · 63 km away
  17. 2.36 km W of Cobb, California · 14992 days ago · 3 km deep · 62 km away
  18. 1.94 km WSW of Cobb, California · 14992 days ago · 1 km deep · 61 km away
  19. 1.612 km NE of Upper Lake, California · 14992 days ago · 4 km deep · 61 km away
  20. 1.85 km W of Cobb, California · 14992 days ago · 0 km deep · 62 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc56147. Read Thu, Oct 1, 2026, 6:25 PM UTC.