California earthquakes

M2.9 earthquake 8 km N of Old Station, California

A magnitude 2.9 earthquake struck 8 km N of Old Station, California on Wed, Oct 9, 1985, 9:45 AM PDT (16:45 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.0 9 km WNW of Chester, 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
2.9 (md), micro
Local time
UTC
1985-10-09 16:45:16 UTC
Depth
6.8 km (4.2 mi), shallow
Epicenter
40.751° N, 121.427° 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, 0.8 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
184°, poorly surrounded by stations
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 36 in the 60 days after this one and 25 in the 30 days before it.

After

  1. 1.814 km WNW of Cohasset, California · 14958 days ago · 5 km deep · 92 km away
  2. 2.03 km ENE of Canyondam, California · 14958 days ago · 3 km deep · 72 km away
  3. 1.56 km N of Old Station, California · 14955 days ago · 16 km deep · 2 km away
  4. 2.26 km W of Mineral, California · 14953 days ago · 2 km deep · 49 km away
  5. 2.010 km NE of Greenville, California · 14953 days ago · 7 km deep · 78 km away
  6. 1.524 km NNW of Susanville, California · 14952 days ago · 2 km deep · 55 km away
  7. 2.03 km WNW of Greenville, California · 14949 days ago · 0 km deep · 76 km away
  8. 3.09 km WNW of Chester, California · 14948 days ago · 0 km deep · 46 km away
  9. 1.514 km NNE of Mineral, California · 14947 days ago · 12 km deep · 32 km away
  10. 1.614 km NNW of Mineral, California · 14947 days ago · 4 km deep · 37 km away
  11. 1.59 km NW of Chester, California · 14947 days ago · 8 km deep · 44 km away
  12. 2.25 km NNW of Belden, California · 14945 days ago · 8 km deep · 79 km away
  13. 2.31 km NNE of Susanville, California · 14945 days ago · 0 km deep · 75 km away
  14. 1.83 km SSW of Susanville, California · 14944 days ago · 2 km deep · 75 km away
  15. 1.99 km NNW of Cassel, California · 14942 days ago · 16 km deep · 30 km away
  16. 2.229 km SE of Adin, California · 14939 days ago · 3 km deep · 66 km away
  17. 1.913 km E of Mineral, California · 14938 days ago · 3 km deep · 43 km away
  18. 1.712 km SSW of Old Station, California · 14938 days ago · 3 km deep · 21 km away
  19. 1.90 km N of Susanville, California · 14937 days ago · -1 km deep · 75 km away
  20. 2.61 km ESE of Lakehead, California · 14936 days ago · 19 km deep · 80 km away
  21. 2.05 km SSE of Red Bluff, California · 14935 days ago · 6 km deep · 95 km away
  22. 2.81 km ENE of Lakehead, California · 14935 days ago · 18 km deep · 80 km away
  23. 1.64 km SSW of Prattville, California · 14933 days ago · 6 km deep · 67 km away
  24. 1.89 km W of Lake Almanor West, California · 14928 days ago · 10 km deep · 59 km away
  25. 1.810 km NNE of Mineral, California · 14925 days ago · 7 km deep · 37 km away
  26. 1.910 km NNE of Mineral, California · 14925 days ago · 6 km deep · 37 km away
  27. 1.934 km NW of Susanville, California · 14918 days ago · 3 km deep · 44 km away
  28. 2.332 km NNW of Susanville, California · 14916 days ago · 4 km deep · 50 km away
  29. 1.85 km S of Mount Shasta, California · 14916 days ago · 0 km deep · 93 km away
  30. 1.915 km W of Manton, California · 14913 days ago · 28 km deep · 64 km away
  31. 1.62 km NNW of Greenville, California · 14911 days ago · 0 km deep · 77 km away
  32. 1.816 km N of Big Bend, California · 14909 days ago · 3 km deep · 61 km away
  33. 1.712 km SSW of Lake Almanor West, California · 14906 days ago · 2 km deep · 70 km away
  34. 3.05 km S of Millville, California · 14904 days ago · 4 km deep · 69 km away
  35. 2.115 km NNW of Shingletown, California · 14904 days ago · 9 km deep · 46 km away
  36. 1.95 km N of Lakehead, California · 14899 days ago · 8 km deep · 83 km away

Before

  1. 2.25km S of Likely, CA · 14961 days ago · 14 km deep · 91 km away
  2. 2.313 km SSW of Likely, California · 14961 days ago · 22 km deep · 82 km away
  3. 2.27 km NE of Redding, California · 14963 days ago · 29 km deep · 77 km away
  4. 2.115 km SE of McCloud, California · 14965 days ago · 11 km deep · 67 km away
  5. 2.19 km NE of Vina, California · 14966 days ago · 0 km deep · 96 km away
  6. 1.52 km ESE of Prattville, California · 14966 days ago · 14 km deep · 66 km away
  7. 2.12 km ESE of Hamilton Branch, California · 14967 days ago · 7 km deep · 62 km away
  8. 1.52 km ESE of Paynes Creek, California · 14968 days ago · 9 km deep · 61 km away
  9. 1.54 km NNW of Lake Almanor Peninsula, California · 14968 days ago · 16 km deep · 54 km away
  10. 2.23 km ENE of Canyondam, California · 14971 days ago · 3 km deep · 72 km away
  11. 2.15 km NNE of Belden, California · 14971 days ago · 2 km deep · 80 km away
  12. 1.93 km SE of Prattville, California · 14972 days ago · 3 km deep · 67 km away
  13. 1.63 km SE of Prattville, California · 14972 days ago · 4 km deep · 67 km away
  14. 2.54 km SSE of Prattville, California · 14972 days ago · -2 km deep · 69 km away
  15. 1.93 km SE of Prattville, California · 14972 days ago · 3 km deep · 67 km away
  16. 2.312 km NE of Vina, California · 14972 days ago · 0 km deep · 94 km away
  17. 2.010 km NW of Cohasset, California · 14973 days ago · 5 km deep · 90 km away
  18. 1.71 km SE of Chester, California · 14977 days ago · 3 km deep · 54 km away
  19. 1.63 km SE of Prattville, California · 14978 days ago · 3 km deep · 67 km away
  20. 1.624 km NW of McArthur, California · 14978 days ago · 4 km deep · 54 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc56550. Read Tue, Sep 22, 2026, 8:48 PM UTC.