California earthquakes

M2.1 earthquake 17 km ENE of Hydesville, California

A magnitude 2.1 earthquake struck 17 km ENE of Hydesville, California on Wed, Dec 26, 1979, 6:40 PM PST (02:40 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M3.3 21 km SW of Leggett, 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.

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The earthquake

Magnitude
2.1 (md), micro
Local time
UTC
1979-12-27 02:40:19 UTC
Depth
22.6 km (14.0 mi), shallow
Epicenter
40.580° N, 123.894° 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, 0.6 km in depth
Depth from
From location
Station coverage gap
125°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 82 in the 60 days after this one and 44 in the 30 days before it.

After

  1. 1.87 km W of Rio Dell, California · 17079 days ago · 22 km deep · 27 km away
  2. 3.321 km SW of Leggett, California · 17078 days ago · 4 km deep · 93 km away
  3. 3.044 km SW of Ferndale, California · 17078 days ago · 20 km deep · 72 km away
  4. 2.49 km WNW of Willow Creek, California · 17076 days ago · 23 km deep · 44 km away
  5. 2.314 km SE of Hayfork, California · 17076 days ago · 52 km deep · 71 km away
  6. 1.57 km W of Rio Dell, California · 17074 days ago · 21 km deep · 27 km away
  7. 1.935 km SSW of Ferndale, California · 17074 days ago · 21 km deep · 58 km away
  8. 1.66 km N of Fieldbrook, California · 17073 days ago · 4 km deep · 51 km away
  9. 2.516 km WNW of Hyampom, California · 17073 days ago · 28 km deep · 23 km away
  10. 1.612 km W of Ferndale, California · 17072 days ago · 20 km deep · 43 km away
  11. 1.85 km SSW of Fortuna, California · 17072 days ago · 27 km deep · 25 km away
  12. 1.521 km SSW of Ferndale, California · 17072 days ago · 20 km deep · 47 km away
  13. 1.541 km SW of Ferndale, California · 17071 days ago · 20 km deep · 68 km away
  14. 3.04 km NE of Miranda, California · 17066 days ago · 30 km deep · 37 km away
  15. 1.64 km E of Mad River, California · 17066 days ago · 28 km deep · 40 km away
  16. 1.634 km SSW of Ferndale, California · 17065 days ago · 12 km deep · 56 km away
  17. 3.247 km SW of Ferndale, California · 17065 days ago · 20 km deep · 75 km away
  18. 1.821 km SW of Ferndale, California · 17064 days ago · 28 km deep · 47 km away
  19. 1.628 km SW of Ferndale, California · 17063 days ago · 18 km deep · 55 km away
  20. 1.629 km SW of Scotia, California · 17063 days ago · 19 km deep · 49 km away
  21. 3.261 km W of Ferndale, California · 17063 days ago · 7 km deep · 92 km away
  22. 1.625 km SW of Ferndale, California · 17063 days ago · 18 km deep · 54 km away
  23. 2.221 km SE of Ruth, California · 17061 days ago · 24 km deep · 81 km away
  24. 1.916 km WNW of Indianola, California · 17057 days ago · 23 km deep · 48 km away
  25. 1.89 km NW of Fields Landing, California · 17056 days ago · 24 km deep · 41 km away
  26. 1.97 km SW of Ferndale, California · 17055 days ago · 24 km deep · 38 km away
  27. 2.047 km WSW of Ferndale, California · 17055 days ago · 19 km deep · 78 km away
  28. 1.949 km WSW of Ferndale, California · 17055 days ago · 15 km deep · 80 km away
  29. 1.613 km WSW of Ferndale, California · 17055 days ago · 24 km deep · 44 km away
  30. 1.58 km W of Rio Dell, California · 17055 days ago · 24 km deep · 29 km away
  31. 1.69 km ENE of Blue Lake, California · 17053 days ago · 30 km deep · 36 km away
  32. 1.716 km SW of Scotia, California · 17052 days ago · 30 km deep · 37 km away
  33. 1.72 km WSW of Loleta, California · 17052 days ago · 18 km deep · 31 km away
  34. 1.7near the coast of Northern California · 17052 days ago · 24 km deep · 55 km away
  35. 1.663 km WSW of Ferndale, California · 17051 days ago · 2 km deep · 92 km away
  36. 2.08 km SE of Blue Lake, California · 17051 days ago · -1 km deep · 28 km away
  37. 1.514 km SE of Blue Lake, California · 17050 days ago · 28 km deep · 23 km away
  38. 1.728 km WSW of Ferndale, California · 17049 days ago · 18 km deep · 57 km away
  39. 1.728 km SW of Ferndale, California · 17048 days ago · 33 km deep · 54 km away
  40. 2.449 km SW of Ferndale, California · 17047 days ago · 17 km deep · 77 km away
  41. 1.6near the coast of Northern California · 17046 days ago · 8 km deep · 94 km away
  42. 1.845 km WSW of Ferndale, California · 17046 days ago · 43 km deep · 75 km away
  43. 2.818 km WNW of Hyampom, California · 17045 days ago · 32 km deep · 24 km away
  44. 1.721 km SE of Blue Lake, California · 17045 days ago · 24 km deep · 16 km away
  45. 2.112 km WNW of Samoa, California · 17044 days ago · 24 km deep · 48 km away
  46. 1.516 km S of Ferndale, California · 17044 days ago · 25 km deep · 38 km away
  47. 1.928 km W of Ferndale, California · 17043 days ago · 21 km deep · 59 km away
  48. 1.852 km SW of Ferndale, California · 17043 days ago · 11 km deep · 80 km away
  49. 1.8near the coast of Northern California · 17042 days ago · 5 km deep · 96 km away
  50. 2.012 km N of Covelo, California · 17042 days ago · 3 km deep · 93 km away
  51. 1.62 km NNE of Bayside, California · 17042 days ago · 20 km deep · 34 km away
  52. 1.614 km NE of Hydesville, California · 17039 days ago · 24 km deep · 8 km away
  53. 1.621 km SW of Ferndale, California · 17039 days ago · 20 km deep · 49 km away
  54. 1.534 km SSW of Ferndale, California · 17038 days ago · 17 km deep · 58 km away
  55. 1.815 km N of Laytonville, California · 17038 days ago · 4 km deep · 91 km away
  56. 1.935 km WSW of Ferndale, California · 17038 days ago · 27 km deep · 65 km away
  57. 1.921 km ENE of Trinity Village, California · 17038 days ago · 20 km deep · 66 km away
  58. 2.911 km SSW of Willow Creek, California · 17037 days ago · 26 km deep · 34 km away
  59. 1.948 km SW of Ferndale, California · 17036 days ago · 15 km deep · 77 km away
  60. 1.850 km WSW of Ferndale, California · 17036 days ago · 23 km deep · 79 km away

The first 60 of 82.

Before

  1. 2.01 km SSW of Humboldt Hill, California · 17082 days ago · 10 km deep · 29 km away
  2. 1.836 km SW of Ferndale, California · 17082 days ago · 29 km deep · 60 km away
  3. 1.619 km SSW of Ferndale, California · 17083 days ago · 28 km deep · 41 km away
  4. 2.222 km NNE of Redcrest, California · 17083 days ago · 22 km deep · 7 km away
  5. 1.857 km WSW of Ferndale, California · 17084 days ago · 0 km deep · 86 km away
  6. 2.316 km S of Leggett, California · 17084 days ago · -1 km deep · 97 km away
  7. 2.134 km SSW of Ferndale, California · 17084 days ago · 21 km deep · 56 km away
  8. 2.321 km WSW of Weott, California · 17086 days ago · 4 km deep · 44 km away
  9. 1.536 km SW of Ferndale, California · 17086 days ago · 29 km deep · 63 km away
  10. 2.336 km SW of Ferndale, California · 17087 days ago · 22 km deep · 60 km away
  11. 2.07 km NNE of Mad River, California · 17088 days ago · -1 km deep · 37 km away
  12. 2.18 km NW of Fields Landing, California · 17090 days ago · 26 km deep · 40 km away
  13. 1.910 km W of Ferndale, California · 17090 days ago · 21 km deep · 42 km away
  14. 1.518 km SW of Scotia, California · 17090 days ago · 22 km deep · 39 km away
  15. 2.919 km SW of Scotia, California · 17090 days ago · 22 km deep · 39 km away
  16. 1.613 km SW of Scotia, California · 17091 days ago · 26 km deep · 33 km away
  17. 3.14 km N of Myers Flat, California · 17092 days ago · 28 km deep · 31 km away
  18. 1.62 km N of Ferndale, California · 17092 days ago · 20 km deep · 32 km away
  19. 1.829 km SSW of Ferndale, California · 17095 days ago · 27 km deep · 53 km away
  20. 1.811 km NW of Mad River, California · 17095 days ago · 23 km deep · 26 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1049558. Read Wed, Sep 30, 2026, 11:16 AM UTC.