California earthquakes

M2.6 earthquake 15 km NE of Hydesville, California

A magnitude 2.6 earthquake struck 15 km NE of Hydesville, California on Sun, Mar 26, 1978, 10:01 PM PST (06:01 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M3.6 9 km WSW of Scotia, 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
2.6 (md), micro
Local time
UTC
1978-03-27 06:01:34 UTC
Depth
24.1 km (15.0 mi), shallow
Epicenter
40.636° N, 123.956° 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
Depth from
From location
Station coverage gap
66°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 116 in the 60 days after this one and 81 in the 30 days before it.

After

  1. 3.69 km WSW of Scotia, California · 17712 days ago · 5 km deep · 28 km away
  2. 1.99 km W of Scotia, California · 17712 days ago · 9 km deep · 29 km away
  3. 1.69 km WSW of Rio Dell, California · 17712 days ago · 2 km deep · 29 km away
  4. 1.89 km WSW of Rio Dell, California · 17712 days ago · 4 km deep · 29 km away
  5. 2.710 km WSW of Rio Dell, California · 17711 days ago · 6 km deep · 29 km away
  6. 1.615 km WSW of Ferndale, California · 17711 days ago · 23 km deep · 42 km away
  7. 1.86 km ENE of Blue Lake, California · 17711 days ago · 27 km deep · 30 km away
  8. 2.032 km WSW of Ferndale, California · 17711 days ago · 23 km deep · 59 km away
  9. 2.710 km WSW of Scotia, California · 17709 days ago · 8 km deep · 30 km away
  10. 1.912 km SW of Ferndale, California · 17708 days ago · 24 km deep · 38 km away
  11. 1.710 km W of Scotia, California · 17708 days ago · 7 km deep · 30 km away
  12. 2.5near the coast of Northern California · 17707 days ago · 16 km deep · 59 km away
  13. 1.9near the coast of Northern California · 17706 days ago · 26 km deep · 30 km away
  14. 2.041 km SW of Ferndale, California · 17706 days ago · 16 km deep · 66 km away
  15. 2.30 km W of Fields Landing, California · 17705 days ago · 9 km deep · 25 km away
  16. 1.91 km WNW of Fields Landing, California · 17705 days ago · 8 km deep · 26 km away
  17. 2.639 km SW of Ferndale, California · 17705 days ago · 16 km deep · 64 km away
  18. 2.529 km SW of Ferndale, California · 17705 days ago · 20 km deep · 54 km away
  19. 2.518 km SSW of Ferndale, California · 17703 days ago · 22 km deep · 40 km away
  20. 3.617 km WSW of Ferndale, California · 17703 days ago · 22 km deep · 44 km away
  21. 1.715 km WSW of Ferndale, California · 17703 days ago · 22 km deep · 42 km away
  22. 1.918 km SW of Ferndale, California · 17703 days ago · 24 km deep · 45 km away
  23. 1.617 km SW of Ferndale, California · 17703 days ago · 23 km deep · 43 km away
  24. 2.518 km WSW of Ferndale, California · 17703 days ago · 22 km deep · 45 km away
  25. 2.863 km W of Ferndale, California · 17703 days ago · 11 km deep · 89 km away
  26. 1.920 km WSW of Ferndale, California · 17703 days ago · 25 km deep · 46 km away
  27. 2.710 km S of Ferndale, California · 17703 days ago · 12 km deep · 30 km away
  28. 1.97 km SSW of Scotia, California · 17702 days ago · 23 km deep · 29 km away
  29. 2.18 km WSW of Scotia, California · 17702 days ago · 2 km deep · 28 km away
  30. 2.356 km W of Trinidad, California · 17701 days ago · -1 km deep · 90 km away
  31. 1.916 km SW of Ferndale, California · 17699 days ago · 22 km deep · 42 km away
  32. 1.527 km WSW of Ferndale, California · 17698 days ago · 23 km deep · 54 km away
  33. 1.610 km W of Scotia, California · 17697 days ago · 4 km deep · 29 km away
  34. 2.030 km WSW of Ferndale, California · 17697 days ago · 24 km deep · 57 km away
  35. 1.621 km SSW of Ferndale, California · 17697 days ago · 22 km deep · 44 km away
  36. 1.811 km W of Hyampom, California · 17696 days ago · 33 km deep · 32 km away
  37. 2.113 km NE of Phillipsville, California · 17696 days ago · 22 km deep · 44 km away
  38. 2.168 km W of Ferndale, California · 17696 days ago · 7 km deep · 95 km away
  39. 3.418 km SSW of Scotia, California · 17695 days ago · 22 km deep · 40 km away
  40. 2.571 km W of Samoa, California · 17695 days ago · 6 km deep · 96 km away
  41. 2.266 km WNW of Indianola, California · 17694 days ago · 8 km deep · 90 km away
  42. 1.929 km SW of Scotia, California · 17692 days ago · 21 km deep · 50 km away
  43. 1.827 km WSW of Ferndale, California · 17692 days ago · 25 km deep · 54 km away
  44. 1.61 km N of Rio Dell, California · 17692 days ago · 3 km deep · 19 km away
  45. 1.710 km WSW of Rio Dell, California · 17692 days ago · 5 km deep · 29 km away
  46. 1.910 km WSW of Rio Dell, California · 17692 days ago · 4 km deep · 29 km away
  47. 1.626 km WNW of Manila, California · 17692 days ago · 19 km deep · 55 km away
  48. 1.523 km SSW of Ferndale, California · 17692 days ago · 20 km deep · 45 km away
  49. 2.929 km WSW of Ferndale, California · 17691 days ago · 21 km deep · 57 km away
  50. 1.711 km W of Scotia, California · 17691 days ago · 7 km deep · 30 km away
  51. 1.67 km SSE of Ferndale, California · 17691 days ago · 24 km deep · 28 km away
  52. 1.927 km SW of Ferndale, California · 17690 days ago · 26 km deep · 53 km away
  53. 1.623 km SW of Scotia, California · 17689 days ago · 15 km deep · 44 km away
  54. 1.728 km SSW of Ferndale, California · 17689 days ago · 17 km deep · 49 km away
  55. 1.521 km SW of Ferndale, California · 17689 days ago · 22 km deep · 47 km away
  56. 1.544 km WSW of Ferndale, California · 17689 days ago · 6 km deep · 70 km away
  57. 2.53 km SSW of Westhaven-Moonstone, California · 17688 days ago · 13 km deep · 45 km away
  58. 2.334 km SW of Ferndale, California · 17687 days ago · 21 km deep · 58 km away
  59. 3.223 km SW of Ferndale, California · 17686 days ago · 21 km deep · 49 km away
  60. 2.817 km SW of Ferndale, California · 17685 days ago · 22 km deep · 44 km away

The first 60 of 116.

Before

  1. 3.027 km SW of Ferndale, California · 17712 days ago · 25 km deep · 53 km away
  2. 1.832 km SSW of Ferndale, California · 17714 days ago · 13 km deep · 54 km away
  3. 3.236 km SW of Ferndale, California · 17714 days ago · 23 km deep · 61 km away
  4. 1.614 km ESE of Indianola, California · 17715 days ago · 25 km deep · 14 km away
  5. 1.77 km NNW of Big Lagoon, California · 17715 days ago · 24 km deep · 68 km away
  6. 1.522 km SW of Ferndale, California · 17716 days ago · 22 km deep · 47 km away
  7. 2.18 km ENE of Trinity Village, California · 17716 days ago · 21 km deep · 53 km away
  8. 3.014 km ESE of Ruth, California · 17716 days ago · 44 km deep · 82 km away
  9. 1.816 km ESE of Ruth, California · 17716 days ago · 45 km deep · 84 km away
  10. 1.610 km WSW of Rio Dell, California · 17717 days ago · 4 km deep · 29 km away
  11. 2.317 km SW of Scotia, California · 17717 days ago · 26 km deep · 39 km away
  12. 3.116 km ESE of Ruth, California · 17717 days ago · 48 km deep · 84 km away
  13. 2.613 km ESE of Ruth, California · 17717 days ago · 44 km deep · 81 km away
  14. 1.722 km SSW of Ferndale, California · 17717 days ago · 27 km deep · 43 km away
  15. 2.69 km WSW of Rio Dell, California · 17717 days ago · 5 km deep · 29 km away
  16. 3.313 km ESE of Ruth, California · 17717 days ago · 41 km deep · 81 km away
  17. 2.09 km WSW of Rio Dell, California · 17717 days ago · 4 km deep · 29 km away
  18. 2.124 km SSW of Ferndale, California · 17717 days ago · 22 km deep · 47 km away
  19. 1.710 km WSW of Rio Dell, California · 17717 days ago · 3 km deep · 29 km away
  20. 1.69 km WSW of Rio Dell, California · 17717 days ago · 3 km deep · 28 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1039551. Read Tue, Sep 22, 2026, 9:43 PM UTC.