California earthquakes

M2.5 earthquake 4 km SSE of Prattville, California

A magnitude 2.5 earthquake struck 4 km SSE of Prattville, California on Thu, Sep 26, 1985, 12:58 AM PDT (07:58 UTC), -2 km (-1 mi) below the surface.

A larger quake followed: M2.9 8 km N of Old Station, California. This one was a foreshock.

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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), micro
Local time
UTC
1985-09-26 07:58:45 UTC
Depth
-1.6 km (-1.0 mi), shallow
Epicenter
40.169° N, 121.145° 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 0.9 km horizontally, 3.8 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
234°, poorly surrounded by stations
Stations used
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 55 in the 60 days after this one and 24 in the 30 days before it.

After

  1. 1.63 km SE of Prattville, California · 14972 days ago · 4 km deep · 3 km away
  2. 1.93 km SE of Prattville, California · 14972 days ago · 3 km deep · 3 km away
  3. 2.15 km NNE of Belden, California · 14971 days ago · 2 km deep · 15 km away
  4. 2.23 km ENE of Canyondam, California · 14971 days ago · 3 km deep · 10 km away
  5. 1.54 km NNW of Lake Almanor Peninsula, California · 14968 days ago · 16 km deep · 16 km away
  6. 1.52 km ESE of Paynes Creek, California · 14968 days ago · 9 km deep · 66 km away
  7. 2.12 km ESE of Hamilton Branch, California · 14967 days ago · 7 km deep · 12 km away
  8. 1.52 km ESE of Prattville, California · 14966 days ago · 14 km deep · 4 km away
  9. 2.19 km NE of Vina, California · 14966 days ago · 0 km deep · 73 km away
  10. 2.98 km N of Old Station, California · 14958 days ago · 7 km deep · 69 km away
  11. 1.814 km WNW of Cohasset, California · 14958 days ago · 5 km deep · 65 km away
  12. 2.03 km ENE of Canyondam, California · 14958 days ago · 3 km deep · 10 km away
  13. 1.56 km N of Old Station, California · 14955 days ago · 16 km deep · 67 km away
  14. 2.610 km ENE of Artois, California · 14955 days ago · 22 km deep · 99 km away
  15. 2.015 km N of Lake Davis, California · 14954 days ago · 4 km deep · 61 km away
  16. 2.26 km W of Mineral, California · 14953 days ago · 2 km deep · 49 km away
  17. 1.74 km SE of Palermo, California · 14953 days ago · 6 km deep · 90 km away
  18. 2.010 km NE of Greenville, California · 14953 days ago · 7 km deep · 25 km away
  19. 1.524 km NNW of Susanville, California · 14952 days ago · 2 km deep · 56 km away
  20. 1.84 km S of Oroville East, California · 14949 days ago · 0 km deep · 82 km away
  21. 2.03 km WNW of Greenville, California · 14949 days ago · 0 km deep · 13 km away
  22. 3.04 km S of Sierraville, California · 14949 days ago · 3 km deep · 96 km away
  23. 1.54 km SSE of Sierraville, California · 14949 days ago · 8 km deep · 96 km away
  24. 2.03 km SSW of Sierraville, California · 14949 days ago · -2 km deep · 94 km away
  25. 2.23 km SSE of Sierraville, California · 14949 days ago · 7 km deep · 96 km away
  26. 3.09 km WNW of Chester, California · 14948 days ago · 0 km deep · 26 km away
  27. 1.514 km NNE of Mineral, California · 14947 days ago · 12 km deep · 46 km away
  28. 1.614 km NNW of Mineral, California · 14947 days ago · 4 km deep · 54 km away
  29. 1.59 km NW of Chester, California · 14947 days ago · 8 km deep · 26 km away
  30. 2.25 km NNW of Belden, California · 14945 days ago · 8 km deep · 17 km away
  31. 2.31 km NNE of Susanville, California · 14945 days ago · 0 km deep · 51 km away
  32. 1.83 km SSW of Susanville, California · 14944 days ago · 2 km deep · 47 km away
  33. 2.14 km S of Sierraville, California · 14944 days ago · 6 km deep · 96 km away
  34. 2.513 km NE of Lake Davis, California · 14943 days ago · 10 km deep · 70 km away
  35. 2.811 km W of La Porte, California · 14943 days ago · 11 km deep · 53 km away
  36. 2.410 km SSE of Hamilton City, California · 14943 days ago · 21 km deep · 90 km away
  37. 1.99 km NNW of Cassel, California · 14942 days ago · 16 km deep · 99 km away
  38. 2.34 km WSW of Chico, California · 14942 days ago · 22 km deep · 81 km away
  39. 2.229 km SE of Adin, California · 14939 days ago · 3 km deep · 99 km away
  40. 1.913 km E of Mineral, California · 14938 days ago · 3 km deep · 33 km away
  41. 1.712 km SSW of Old Station, California · 14938 days ago · 3 km deep · 54 km away
  42. 1.90 km N of Susanville, California · 14937 days ago · -1 km deep · 50 km away
  43. 2.05 km SSE of Red Bluff, California · 14935 days ago · 6 km deep · 90 km away
  44. 1.64 km SSW of Prattville, California · 14933 days ago · 6 km deep · 3 km away
  45. 3.30 km WSW of Tehama, California · 14933 days ago · 71 km deep · 85 km away
  46. 1.89 km W of Lake Almanor West, California · 14928 days ago · 10 km deep · 16 km away
  47. 1.716 km WSW of Durham, California · 14927 days ago · 5 km deep · 97 km away
  48. 1.810 km NNE of Mineral, California · 14925 days ago · 7 km deep · 45 km away
  49. 1.910 km NNE of Mineral, California · 14925 days ago · 6 km deep · 45 km away
  50. 3.08 km WSW of Paradise, California · 14921 days ago · 28 km deep · 69 km away
  51. 2.77 km ENE of Nord, California · 14920 days ago · 14 km deep · 75 km away
  52. 1.934 km NW of Susanville, California · 14918 days ago · 3 km deep · 56 km away
  53. 2.332 km NNW of Susanville, California · 14916 days ago · 4 km deep · 61 km away
  54. 2.36 km ENE of Nord, California · 14916 days ago · 18 km deep · 76 km away
  55. 1.915 km W of Manton, California · 14913 days ago · 28 km deep · 82 km away

Before

  1. 1.93 km SE of Prattville, California · 14972 days ago · 3 km deep · 3 km away
  2. 1.91 km W of Sierraville, California · 14972 days ago · 7 km deep · 92 km away
  3. 2.312 km NE of Vina, California · 14972 days ago · 0 km deep · 70 km away
  4. 2.010 km NW of Cohasset, California · 14973 days ago · 5 km deep · 60 km away
  5. 2.05 km SSW of Graeagle, California · 14974 days ago · 3 km deep · 66 km away
  6. 1.71 km SE of Chester, California · 14977 days ago · 3 km deep · 15 km away
  7. 1.63 km SE of Prattville, California · 14978 days ago · 3 km deep · 2 km away
  8. 2.013 km SW of Durham, California · 14978 days ago · 18 km deep · 94 km away
  9. 1.619 km NNE of Shingletown, California · 14983 days ago · 13 km deep · 75 km away
  10. 1.713 km SE of Millville, California · 14984 days ago · 4 km deep · 84 km away
  11. 2.27 km SE of Millville, California · 14985 days ago · 19 km deep · 90 km away
  12. 2.03 km N of Hamilton Branch, California · 14985 days ago · 11 km deep · 16 km away
  13. 1.74 km SE of Montgomery Creek, California · 14989 days ago · 17 km deep · 96 km away
  14. 1.613 km NNE of Mineral, California · 14993 days ago · 2 km deep · 48 km away
  15. 1.613 km NNE of Mineral, California · 14993 days ago · 2 km deep · 48 km away
  16. 2.613 km NNE of Mineral, California · 14993 days ago · 2 km deep · 48 km away
  17. 2.114 km NNE of Mineral, California · 14993 days ago · 2 km deep · 48 km away
  18. 1.813 km ESE of Mineral, California · 14994 days ago · 8 km deep · 30 km away
  19. 2.14 km NW of Spring Garden, California · 14994 days ago · 4 km deep · 38 km away
  20. 1.63 km NNW of Belden, California · 14996 days ago · 1 km deep · 18 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc55821. Read Tue, Sep 22, 2026, 8:46 PM UTC.