California earthquakes

M2.8 earthquake 10 km NNE of Arbuckle, California

A magnitude 2.8 earthquake struck 10 km NNE of Arbuckle, California on Fri, May 31, 1985, 5:42 AM PDT (12:42 UTC), 9 km (5 mi) below the surface.

A larger quake followed: M4.3 12 km WSW of Kelseyville, 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.

Open the live map with earthquakes

The earthquake

Magnitude
2.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1985-05-31 12:42:49 UTC
Depth
8.6 km (5.4 mi), shallow
Epicenter
39.105° N, 122.026° 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, 1.3 km in depth
Magnitude uncertainty
±0.21
Depth from
From location
Station coverage gap
101°
Stations used
35

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 113 in the 30 days before it.

After

  1. 3.69 km ESE of Williams, California · 15100 days ago · 13 km deep · 2 km away
  2. 2.39 km SSW of Colusa, California · 15100 days ago · 16 km deep · 3 km away
  3. 1.86 km SSW of Colusa, California · 15100 days ago · 5 km deep · 6 km away
  4. 3.5Northern California · 15100 days ago · 23 km deep · 2 km away
  5. 1.84 km SSW of Dunnigan, California · 15100 days ago · 5 km deep · 29 km away
  6. 2.28 km NNE of Arbuckle, California · 15099 days ago · 4 km deep · 2 km away
  7. 1.96 km W of Meridian, California · 15099 days ago · 5 km deep · 5 km away
  8. 1.67 km SSW of Colusa, California · 15099 days ago · 5 km deep · 6 km away
  9. 1.88 km W of Cobb, California · 15099 days ago · 1 km deep · 76 km away
  10. 2.48 km W of Cobb, California · 15099 days ago · 1 km deep · 76 km away
  11. 2.610 km WSW of Cobb, California · 15099 days ago · 2 km deep · 78 km away
  12. 1.77 km NE of Clearlake, California · 15099 days ago · 1 km deep · 48 km away
  13. 1.87 km W of Cobb, California · 15098 days ago · 0 km deep · 75 km away
  14. 1.65 km W of Lower Lake, California · 15097 days ago · 4 km deep · 61 km away
  15. 1.86 km W of Lower Lake, California · 15097 days ago · 4 km deep · 61 km away
  16. 1.65km WNW of Lakeport, CA · 15097 days ago · 24 km deep · 81 km away
  17. 1.78 km W of Cobb, California · 15097 days ago · 0 km deep · 76 km away
  18. 2.07 km WNW of Arbuckle, California · 15097 days ago · 4 km deep · 12 km away
  19. 2.210 km NNE of Hopland, California · 15097 days ago · 5 km deep · 90 km away
  20. 2.010 km NNE of Hopland, California · 15097 days ago · 5 km deep · 90 km away
  21. 2.44 km S of Oroville East, California · 15097 days ago · 2 km deep · 62 km away
  22. 2.27 km W of Cobb, California · 15097 days ago · 0 km deep · 75 km away
  23. 1.66 km W of Cobb, California · 15096 days ago · 4 km deep · 74 km away
  24. 1.722 km NE of Potter Valley, California · 15096 days ago · 7 km deep · 87 km away
  25. 1.65 km SW of Cobb, California · 15096 days ago · 1 km deep · 73 km away
  26. 1.89 km S of Hopland, California · 15095 days ago · 5 km deep · 99 km away
  27. 2.24 km SW of Cobb, California · 15095 days ago · 1 km deep · 72 km away
  28. 2.38 km E of Williams, California · 15095 days ago · 17 km deep · 5 km away
  29. 1.66 km WSW of Cobb, California · 15095 days ago · 1 km deep · 74 km away
  30. 2.014 km N of Upper Lake, California · 15095 days ago · -1 km deep · 81 km away
  31. 1.76 km W of Cobb, California · 15094 days ago · 3 km deep · 74 km away
  32. 1.75 km WSW of Cobb, California · 15094 days ago · 0 km deep · 74 km away
  33. 1.68 km WSW of Cobb, California · 15094 days ago · 3 km deep · 76 km away
  34. 2.07 km NNE of Arbuckle, California · 15094 days ago · 8 km deep · 3 km away
  35. 1.65 km NE of College City, California · 15093 days ago · 4 km deep · 9 km away
  36. 1.79 km NW of Cobb, California · 15093 days ago · 1 km deep · 72 km away
  37. 2.09 km ESE of Williams, California · 15093 days ago · 5 km deep · 3 km away
  38. 2.26 km W of Cobb, California · 15093 days ago · 2 km deep · 74 km away
  39. 1.66 km W of Cobb, California · 15093 days ago · 2 km deep · 75 km away
  40. 1.66 km W of Cobb, California · 15092 days ago · 0 km deep · 74 km away
  41. 1.98 km W of Cobb, California · 15092 days ago · 0 km deep · 75 km away
  42. 1.910 km N of Arbuckle, California · 15092 days ago · 7 km deep · 1 km away
  43. 1.56 km W of Cobb, California · 15091 days ago · 3 km deep · 74 km away
  44. 1.85 km SW of Cobb, California · 15091 days ago · 0 km deep · 73 km away
  45. 1.75 km SW of Cobb, California · 15090 days ago · 1 km deep · 74 km away
  46. 1.67 km WSW of Cobb, California · 15089 days ago · 1 km deep · 75 km away
  47. 1.65 km W of Cobb, California · 15089 days ago · 1 km deep · 72 km away
  48. 1.66 km W of Cobb, California · 15088 days ago · 2 km deep · 74 km away
  49. 1.67 km NNE of Hopland, California · 15088 days ago · 0 km deep · 92 km away
  50. 2.3Northern California · 15088 days ago · 5 km deep · 94 km away
  51. 2.310 km NE of Vina, California · 15088 days ago · -1 km deep · 100 km away
  52. 3.16 km W of Cobb, California · 15087 days ago · 1 km deep · 74 km away
  53. 1.56 km W of Cobb, California · 15087 days ago · 1 km deep · 74 km away
  54. 2.2Northern California · 15087 days ago · 18 km deep · 5 km away
  55. 1.73 km NNW of Hamilton City, California · 15087 days ago · 10 km deep · 74 km away
  56. 1.76 km WSW of Colusa, California · 15086 days ago · 13 km deep · 10 km away
  57. 1.68 km SW of Clear Lake Riviera, California · 15086 days ago · 2 km deep · 69 km away
  58. 2.218 km WSW of Esparto, California · 15086 days ago · 6 km deep · 55 km away
  59. 1.87 km W of Cobb, California · 15085 days ago · 1 km deep · 74 km away
  60. 1.67 km W of Cobb, California · 15085 days ago · 1 km deep · 75 km away

The first 60 of 181.

Before

  1. 2.16 km E of Williams, California · 15100 days ago · 22 km deep · 6 km away
  2. 2.6Northern California · 15100 days ago · 1 km deep · 76 km away
  3. 2.510 km ESE of Williams, California · 15100 days ago · 18 km deep · 2 km away
  4. 2.19 km WSW of Meridian, California · 15101 days ago · 5 km deep · 2 km away
  5. 2.17 km W of Cobb, California · 15101 days ago · 3 km deep · 75 km away
  6. 1.85 km W of Cobb, California · 15101 days ago · 1 km deep · 73 km away
  7. 1.71 km NNE of Talmage, California · 15101 days ago · 4 km deep · 98 km away
  8. 1.612 km ENE of Upper Lake, California · 15102 days ago · 9 km deep · 67 km away
  9. 2.08 km WSW of Cobb, California · 15102 days ago · 0 km deep · 76 km away
  10. 2.67 km WSW of Cobb, California · 15102 days ago · 0 km deep · 76 km away
  11. 2.23 km SW of Cobb, California · 15103 days ago · 2 km deep · 71 km away
  12. 2.08 km N of Cloverdale, California · 15103 days ago · 3 km deep · 89 km away
  13. 2.64 km W of Meridian, California · 15104 days ago · 6 km deep · 6 km away
  14. 1.57 km W of Cobb, California · 15104 days ago · 3 km deep · 74 km away
  15. 1.57 km WSW of Cobb, California · 15104 days ago · 2 km deep · 75 km away
  16. 2.46 km W of Cobb, California · 15105 days ago · 3 km deep · 74 km away
  17. 1.53 km NNE of Santa Rosa, California · 15105 days ago · 3 km deep · 92 km away
  18. 1.85 km SW of Cobb, California · 15105 days ago · 0 km deep · 73 km away
  19. 2.25 km SW of Cobb, California · 15105 days ago · 0 km deep · 73 km away
  20. 1.65 km SW of Cobb, California · 15105 days ago · 1 km deep · 73 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc48806. Read Sat, Oct 3, 2026, 11:29 AM UTC.