California earthquakes

M1.8 earthquake 4 km N of Hydesville, California

A magnitude 1.8 earthquake struck 4 km N of Hydesville, California on Sun, Sep 29, 1985, 6:12 PM PDT (01:12 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M1.8 35 km WSW of Ferndale, California. This one was a foreshock.

Hydesville 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
1.8 (md), micro
Local time
UTC
1985-09-30 01:12:34 UTC
Depth
19.3 km (12.0 mi), shallow
Epicenter
40.585° N, 124.096° 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 0.7 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
154°
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 56 in the 60 days after this one and 24 in the 30 days before it.

After

  1. 1.619 km SSW of Ferndale, California · 14968 days ago · 26 km deep · 28 km away
  2. 1.818 km SSW of Ferndale, California · 14968 days ago · 26 km deep · 29 km away
  3. 1.835 km WSW of Ferndale, California · 14968 days ago · 25 km deep · 49 km away
  4. 2.14 km ESE of Fortuna, California · 14963 days ago · 22 km deep · 1 km away
  5. 1.722 km WSW of Weott, California · 14963 days ago · 9 km deep · 37 km away
  6. 2.221 km WSW of Ferndale, California · 14963 days ago · 22 km deep · 35 km away
  7. 2.422 km NW of Mad River, California · 14962 days ago · 23 km deep · 32 km away
  8. 1.925 km SW of Ferndale, California · 14962 days ago · 27 km deep · 37 km away
  9. 3.528 km SW of Ferndale, California · 14962 days ago · 16 km deep · 39 km away
  10. 3.066 km WSW of Ferndale, California · 14959 days ago · 3 km deep · 80 km away
  11. 1.714 km W of Ruth, California · 14958 days ago · -1 km deep · 62 km away
  12. 2.720 km SW of Weott, California · 14956 days ago · 4 km deep · 41 km away
  13. 2.041 km SW of Ferndale, California · 14956 days ago · 23 km deep · 54 km away
  14. 3.337 km SW of Ferndale, California · 14954 days ago · 25 km deep · 49 km away
  15. 2.625 km SE of Blue Lake, California · 14948 days ago · 53 km deep · 31 km away
  16. 2.312 km SW of Scotia, California · 14946 days ago · 6 km deep · 22 km away
  17. 3.622 km WNW of Indianola, California · 14942 days ago · 21 km deep · 38 km away
  18. 3.122 km WSW of Weott, California · 14941 days ago · 13 km deep · 40 km away
  19. 3.073 km WSW of Ferndale, California · 14941 days ago · 12 km deep · 87 km away
  20. 2.127 km E of Ruth, California · 14938 days ago · 25 km deep · 100 km away
  21. 2.98 km WNW of McKinleyville, California · 14938 days ago · 18 km deep · 44 km away
  22. 1.917 km NW of Willow Creek, California · 14937 days ago · -1 km deep · 61 km away
  23. 2.719 km WNW of Indianola, California · 14936 days ago · 20 km deep · 35 km away
  24. 2.18 km NNE of Trinity Village, California · 14934 days ago · 23 km deep · 65 km away
  25. 2.360 km W of Indianola, California · 14930 days ago · 4 km deep · 74 km away
  26. 2.235 km SSW of Ferndale, California · 14930 days ago · 18 km deep · 44 km away
  27. 1.734 km NW of Shelter Cove, California · 14930 days ago · 4 km deep · 50 km away
  28. 4.175 km WNW of Ferndale, California · 14928 days ago · 2 km deep · 89 km away
  29. 2.52 km NNE of Humboldt Hill, California · 14928 days ago · 19 km deep · 19 km away
  30. 2.29 km WNW of Ferndale, California · 14927 days ago · 11 km deep · 23 km away
  31. 1.77 km NE of Phillipsville, California · 14925 days ago · 8 km deep · 47 km away
  32. 2.88 km E of Leggett, California · 14925 days ago · 0 km deep · 91 km away
  33. 2.646 km WSW of Ferndale, California · 14925 days ago · 1 km deep · 59 km away
  34. 2.537 km SSW of Ferndale, California · 14924 days ago · 21 km deep · 47 km away
  35. 1.610 km W of Ferndale, California · 14923 days ago · 15 km deep · 25 km away
  36. 2.113 km ENE of Fieldbrook, California · 14919 days ago · 4 km deep · 51 km away
  37. 1.819 km WSW of Scotia, CA · 14919 days ago · 4 km deep · 26 km away
  38. 2.644 km SW of Ferndale, California · 14919 days ago · 19 km deep · 57 km away
  39. 3.235 km WSW of Ferndale, California · 14917 days ago · 38 km deep · 49 km away
  40. 2.321 km NNW of Willow Creek, California · 14917 days ago · 4 km deep · 69 km away
  41. 2.533 km SW of Ferndale, California · 14917 days ago · 25 km deep · 46 km away
  42. 2.378 km WSW of Ferndale, California · 14917 days ago · 4 km deep · 92 km away
  43. 3.055 km W of Shelter Cove, California · 14916 days ago · 4 km deep · 73 km away
  44. 2.725 km SSW of Ferndale, California · 14916 days ago · 39 km deep · 34 km away
  45. 3.78 km NNW of Alderpoint, California · 14914 days ago · 28 km deep · 53 km away
  46. 1.613 km SW of Mad River, California · 14914 days ago · 4 km deep · 45 km away
  47. 1.710 km NE of Phillipsville, California · 14914 days ago · 24 km deep · 48 km away
  48. 2.210 km NE of Phillipsville, California · 14913 days ago · 29 km deep · 49 km away
  49. 2.856 km WSW of Ferndale, California · 14913 days ago · 16 km deep · 70 km away
  50. 2.49 km NNW of Alderpoint, California · 14913 days ago · 26 km deep · 52 km away
  51. 1.810 km NE of Phillipsville, California · 14913 days ago · 26 km deep · 49 km away
  52. 1.817 km NE of Myers Flat, California · 14912 days ago · 22 km deep · 39 km away
  53. 2.118 km ENE of Weott, California · 14912 days ago · 19 km deep · 38 km away
  54. 2.523 km NW of Willow Creek, California · 14909 days ago · -1 km deep · 64 km away
  55. 3.236 km WSW of Ferndale, California · 14909 days ago · 30 km deep · 50 km away
  56. 1.73 km SSW of Loleta, California · 14909 days ago · 4 km deep · 13 km away

Before

  1. 2.541 km WSW of Ferndale, California · 14968 days ago · 16 km deep · 56 km away
  2. 2.979 km WSW of Ferndale, California · 14969 days ago · 4 km deep · 94 km away
  3. 1.831 km SSW of Ferndale, California · 14969 days ago · 4 km deep · 41 km away
  4. 2.04 km NE of Hydesville, California · 14971 days ago · 25 km deep · 3 km away
  5. 1.648 km SW of Ferndale, California · 14971 days ago · 3 km deep · 61 km away
  6. 2.210 km SW of Scotia, California · 14973 days ago · 12 km deep · 21 km away
  7. 3.656 km WSW of Ferndale, California · 14976 days ago · 7 km deep · 70 km away
  8. 1.71 km SW of Redway, California · 14977 days ago · 19 km deep · 57 km away
  9. 3.337 km SW of Ferndale, California · 14986 days ago · 2 km deep · 50 km away
  10. 2.654 km SW of Ferndale, California · 14987 days ago · 7 km deep · 66 km away
  11. 2.837 km SW of Ferndale, California · 14990 days ago · 21 km deep · 48 km away
  12. 2.938 km SW of Ferndale, California · 14991 days ago · 19 km deep · 50 km away
  13. 1.620 km W of Hyampom, California · 14992 days ago · 18 km deep · 34 km away
  14. 1.622 km W of Hyampom, California · 14992 days ago · 4 km deep · 32 km away
  15. 2.121 km W of Hyampom, California · 14992 days ago · 22 km deep · 34 km away
  16. 2.529 km SW of Ferndale, California · 14992 days ago · 16 km deep · 42 km away
  17. 2.58 km SE of Alderpoint, California · 14992 days ago · 3 km deep · 70 km away
  18. 2.59 km SSW of Hyampom, California · 14993 days ago · 5 km deep · 50 km away
  19. 1.616 km ENE of Leggett, California · 14995 days ago · 2 km deep · 90 km away
  20. 2.024 km WSW of Ferndale, California · 14995 days ago · 26 km deep · 37 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc57104. Read Tue, Sep 22, 2026, 7:50 PM UTC.