California earthquakes

M2.4 earthquake 22 km NW of Mad River, California

A magnitude 2.4 earthquake struck 22 km NW of Mad River, California on Sat, Oct 5, 1985, 4:49 AM PDT (11:49 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M3.5 28 km SW of Ferndale, 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
2.4 (md), micro
Local time
UTC
1985-10-05 11:49:31 UTC
Depth
23.3 km (14.5 mi), shallow
Epicenter
40.575° N, 123.715° 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 0.3 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
58°
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 52 in the 60 days after this one and 26 in the 30 days before it.

After

  1. 1.925 km SW of Ferndale, California · 14962 days ago · 27 km deep · 67 km away
  2. 3.528 km SW of Ferndale, California · 14962 days ago · 16 km deep · 67 km away
  3. 1.714 km W of Ruth, California · 14958 days ago · -1 km deep · 39 km away
  4. 2.720 km SW of Weott, California · 14957 days ago · 4 km deep · 53 km away
  5. 2.041 km SW of Ferndale, California · 14956 days ago · 23 km deep · 84 km away
  6. 3.337 km SW of Ferndale, California · 14954 days ago · 25 km deep · 78 km away
  7. 1.631 km WNW of Paskenta, California · 14954 days ago · 10 km deep · 95 km away
  8. 2.625 km SE of Blue Lake, California · 14948 days ago · 53 km deep · 16 km away
  9. 2.312 km SW of Scotia, California · 14947 days ago · 6 km deep · 45 km away
  10. 3.622 km WNW of Indianola, California · 14942 days ago · 21 km deep · 68 km away
  11. 3.122 km WSW of Weott, California · 14941 days ago · 13 km deep · 53 km away
  12. 2.127 km E of Ruth, California · 14938 days ago · 25 km deep · 70 km away
  13. 2.98 km WNW of McKinleyville, California · 14938 days ago · 18 km deep · 60 km away
  14. 1.917 km NW of Willow Creek, California · 14937 days ago · -1 km deep · 55 km away
  15. 2.719 km WNW of Indianola, California · 14936 days ago · 20 km deep · 65 km away
  16. 2.18 km NNE of Trinity Village, California · 14934 days ago · 23 km deep · 46 km away
  17. 1.521 km W of Trinity Center, California · 14933 days ago · 20 km deep · 77 km away
  18. 2.235 km SSW of Ferndale, California · 14930 days ago · 18 km deep · 70 km away
  19. 1.734 km NW of Shelter Cove, California · 14930 days ago · 4 km deep · 72 km away
  20. 2.52 km NNE of Humboldt Hill, California · 14928 days ago · 19 km deep · 44 km away
  21. 2.29 km WNW of Ferndale, California · 14927 days ago · 11 km deep · 55 km away
  22. 1.77 km NE of Phillipsville, California · 14925 days ago · 8 km deep · 35 km away
  23. 2.88 km E of Leggett, California · 14925 days ago · 0 km deep · 81 km away
  24. 2.646 km WSW of Ferndale, California · 14925 days ago · 1 km deep · 89 km away
  25. 2.537 km SSW of Ferndale, California · 14924 days ago · 21 km deep · 74 km away
  26. 1.610 km W of Ferndale, California · 14923 days ago · 15 km deep · 57 km away
  27. 1.630 km ENE of Covelo, California · 14923 days ago · 16 km deep · 98 km away
  28. 1.78 km N of Laytonville, California · 14923 days ago · 3 km deep · 92 km away
  29. 2.113 km ENE of Fieldbrook, California · 14919 days ago · 4 km deep · 52 km away
  30. 1.819 km WSW of Scotia, CA · 14919 days ago · 4 km deep · 52 km away
  31. 2.644 km SW of Ferndale, California · 14919 days ago · 19 km deep · 87 km away
  32. 3.235 km WSW of Ferndale, California · 14917 days ago · 38 km deep · 80 km away
  33. 2.321 km NNW of Willow Creek, California · 14917 days ago · 4 km deep · 61 km away
  34. 2.533 km SW of Ferndale, California · 14917 days ago · 25 km deep · 76 km away
  35. 3.055 km W of Shelter Cove, California · 14916 days ago · 4 km deep · 98 km away
  36. 2.725 km SSW of Ferndale, California · 14916 days ago · 39 km deep · 61 km away
  37. 3.78 km NNW of Alderpoint, California · 14914 days ago · 28 km deep · 37 km away
  38. 1.613 km SW of Mad River, California · 14914 days ago · 4 km deep · 23 km away
  39. 1.710 km NE of Phillipsville, California · 14914 days ago · 24 km deep · 33 km away
  40. 2.210 km NE of Phillipsville, California · 14914 days ago · 29 km deep · 34 km away
  41. 2.49 km NNW of Alderpoint, California · 14913 days ago · 26 km deep · 36 km away
  42. 1.810 km NE of Phillipsville, California · 14913 days ago · 26 km deep · 34 km away
  43. 1.817 km NE of Myers Flat, California · 14912 days ago · 22 km deep · 22 km away
  44. 2.118 km ENE of Weott, California · 14912 days ago · 19 km deep · 20 km away
  45. 2.334 km NW of Paskenta, California · 14909 days ago · 8 km deep · 91 km away
  46. 2.523 km NW of Willow Creek, California · 14909 days ago · -1 km deep · 61 km away
  47. 3.236 km WSW of Ferndale, California · 14909 days ago · 30 km deep · 81 km away
  48. 1.73 km SSW of Loleta, California · 14909 days ago · 4 km deep · 45 km away
  49. 1.930 km WNW of Paskenta, California · 14907 days ago · 1 km deep · 97 km away
  50. 1.710 km WNW of Trinity Center, California · 14905 days ago · 4 km deep · 90 km away
  51. 2.29 km N of Mad River, California · 14903 days ago · 4 km deep · 20 km away
  52. 1.648 km SW of Ferndale, California · 14903 days ago · 4 km deep · 90 km away

Before

  1. 2.221 km WSW of Ferndale, California · 14963 days ago · 22 km deep · 66 km away
  2. 1.722 km WSW of Weott, California · 14963 days ago · 9 km deep · 52 km away
  3. 2.14 km ESE of Fortuna, California · 14963 days ago · 22 km deep · 33 km away
  4. 3.329 km SE of Ruth, California · 14966 days ago · 42 km deep · 76 km away
  5. 1.813 km N of French Gulch, California · 14967 days ago · 40 km deep · 96 km away
  6. 1.835 km WSW of Ferndale, California · 14968 days ago · 25 km deep · 79 km away
  7. 1.818 km SSW of Ferndale, California · 14968 days ago · 26 km deep · 57 km away
  8. 1.619 km SSW of Ferndale, California · 14968 days ago · 26 km deep · 56 km away
  9. 1.84 km N of Hydesville, California · 14968 days ago · 19 km deep · 32 km away
  10. 2.541 km WSW of Ferndale, California · 14968 days ago · 16 km deep · 87 km away
  11. 1.831 km SSW of Ferndale, California · 14969 days ago · 4 km deep · 67 km away
  12. 2.04 km NE of Hydesville, California · 14971 days ago · 25 km deep · 30 km away
  13. 1.648 km SW of Ferndale, California · 14971 days ago · 3 km deep · 90 km away
  14. 2.210 km SW of Scotia, California · 14973 days ago · 12 km deep · 43 km away
  15. 1.71 km SW of Redway, California · 14977 days ago · 19 km deep · 53 km away
  16. 2.37 km SSE of Trinity Center, California · 14978 days ago · 4 km deep · 97 km away
  17. 3.337 km SW of Ferndale, California · 14986 days ago · 2 km deep · 80 km away
  18. 2.214 km SW of Trinity Center, California · 14986 days ago · 8 km deep · 83 km away
  19. 2.654 km SW of Ferndale, California · 14987 days ago · 7 km deep · 94 km away
  20. 2.837 km SW of Ferndale, California · 14990 days ago · 21 km deep · 75 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc57128. Read Tue, Sep 22, 2026, 8:45 PM UTC.