California earthquakes

M3.4 earthquake 75 km WNW of Samoa, California

A magnitude 3.4 earthquake struck 75 km WNW of Samoa, California on Sun, Sep 24, 1978, 8:45 PM PDT (03:45 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.6 18 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
3.4 (md), minor
Local time
UTC
1978-09-25 03:45:10 UTC
Depth
5.4 km (3.4 mi), shallow
Epicenter
41.001° N, 125.053° 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 7.8 km horizontally, 10.6 km in depth
Depth from
From location
Station coverage gap
318°, poorly surrounded by stations
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: 154 in the 60 days after this one and 45 in the 30 days before it.

After

  1. 2.192 km W of Trinidad, California · 17529 days ago · 5 km deep · 17 km away
  2. 2.190 km W of Trinidad, California · 17529 days ago · 5 km deep · 15 km away
  3. 2.070 km W of Trinidad, California · 17529 days ago · 4 km deep · 7 km away
  4. 2.116 km WSW of Scotia, California · 17529 days ago · 19 km deep · 93 km away
  5. 2.231 km SW of Scotia, California · 17528 days ago · 10 km deep · 96 km away
  6. 1.610 km S of Ferndale, California · 17527 days ago · 18 km deep · 87 km away
  7. 2.510 km S of Ferndale, California · 17527 days ago · 18 km deep · 87 km away
  8. 1.788 km W of Trinidad, California · 17527 days ago · 4 km deep · 14 km away
  9. 2.625 km SSW of Ferndale, California · 17527 days ago · 19 km deep · 89 km away
  10. 1.540 km SW of Ferndale, California · 17525 days ago · 20 km deep · 85 km away
  11. 1.617 km SW of Scotia, California · 17525 days ago · 22 km deep · 94 km away
  12. 1.8104 km W of Ferndale, California · 17524 days ago · 4 km deep · 75 km away
  13. 2.615 km WSW of Ferndale, California · 17523 days ago · 17 km deep · 76 km away
  14. 3.025 km SSW of Ferndale, California · 17521 days ago · 20 km deep · 88 km away
  15. 2.3106 km W of Ferndale, California · 17520 days ago · 4 km deep · 77 km away
  16. 2.832 km SW of Ferndale, California · 17519 days ago · 24 km deep · 86 km away
  17. 4.618 km SW of Ferndale, California · 17518 days ago · 25 km deep · 79 km away
  18. 2.818 km SSW of Ferndale, California · 17518 days ago · 23 km deep · 85 km away
  19. 1.511 km SW of Ferndale, California · 17518 days ago · 24 km deep · 80 km away
  20. 1.815 km WSW of Ferndale, California · 17518 days ago · 24 km deep · 76 km away
  21. 1.618 km SW of Ferndale, California · 17518 days ago · 21 km deep · 82 km away
  22. 2.318 km WSW of Ferndale, California · 17518 days ago · 25 km deep · 76 km away
  23. 2.119 km SSW of Ferndale, California · 17518 days ago · 23 km deep · 84 km away
  24. 2.017 km WSW of Ferndale, California · 17518 days ago · 24 km deep · 74 km away
  25. 1.525 km SW of Scotia, California · 17518 days ago · 22 km deep · 95 km away
  26. 3.316 km SSW of Ferndale, California · 17518 days ago · 26 km deep · 86 km away
  27. 1.715 km SW of Ferndale, California · 17518 days ago · 25 km deep · 79 km away
  28. 1.929 km WSW of Ferndale, California · 17518 days ago · 25 km deep · 73 km away
  29. 1.918 km SSW of Ferndale, California · 17518 days ago · 23 km deep · 86 km away
  30. 1.618 km SW of Ferndale, California · 17518 days ago · 23 km deep · 78 km away
  31. 1.620 km SW of Ferndale, California · 17518 days ago · 26 km deep · 83 km away
  32. 2.417 km SW of Ferndale, California · 17518 days ago · 25 km deep · 80 km away
  33. 2.419 km WSW of Ferndale, California · 17518 days ago · 24 km deep · 75 km away
  34. 1.514 km SW of Scotia, California · 17518 days ago · 21 km deep · 95 km away
  35. 1.616 km WSW of Ferndale, California · 17518 days ago · 23 km deep · 75 km away
  36. 1.615 km SW of Scotia, California · 17518 days ago · 27 km deep · 99 km away
  37. 1.725 km SW of Ferndale, California · 17518 days ago · 27 km deep · 79 km away
  38. 1.811 km SW of Ferndale, California · 17518 days ago · 23 km deep · 79 km away
  39. 2.817 km SW of Ferndale, California · 17518 days ago · 21 km deep · 78 km away
  40. 1.615 km WSW of Ferndale, California · 17518 days ago · 23 km deep · 76 km away
  41. 1.637 km WSW of Ferndale, California · 17518 days ago · 26 km deep · 70 km away
  42. 1.615 km WSW of Ferndale, California · 17518 days ago · 23 km deep · 76 km away
  43. 1.611 km NW of Manila, California · 17518 days ago · 30 km deep · 68 km away
  44. 3.916 km SW of Ferndale, California · 17518 days ago · 23 km deep · 77 km away
  45. 1.917 km SW of Ferndale, California · 17518 days ago · 24 km deep · 77 km away
  46. 2.118 km SW of Ferndale, California · 17518 days ago · 23 km deep · 78 km away
  47. 1.716 km SW of Ferndale, California · 17518 days ago · 22 km deep · 78 km away
  48. 1.523 km SW of Ferndale, California · 17517 days ago · 22 km deep · 80 km away
  49. 1.755 km WSW of Ferndale, California · 17517 days ago · 20 km deep · 63 km away
  50. 1.613 km NW of Big Lagoon, California · 17517 days ago · 2 km deep · 71 km away
  51. 1.822 km SW of Ferndale, California · 17517 days ago · 26 km deep · 80 km away
  52. 1.518 km WSW of Ferndale, California · 17516 days ago · 20 km deep · 77 km away
  53. 1.943 km W of Indianola, California · 17516 days ago · 26 km deep · 41 km away
  54. 1.739 km W of Ferndale, California · 17516 days ago · 24 km deep · 59 km away
  55. 1.511 km SSW of Ferndale, California · 17515 days ago · 26 km deep · 83 km away
  56. 2.939 km SW of Ferndale, California · 17515 days ago · 23 km deep · 86 km away
  57. 1.957 km W of Ferndale, California · 17514 days ago · 4 km deep · 58 km away
  58. 1.845 km WSW of Ferndale, California · 17513 days ago · 17 km deep · 66 km away
  59. 2.025 km SSW of Ferndale, California · 17513 days ago · 19 km deep · 89 km away
  60. 1.980 km W of Trinidad, California · 17513 days ago · 5 km deep · 16 km away

The first 60 of 154.

Before

  1. 2.292 km W of Trinidad, California · 17530 days ago · 4 km deep · 17 km away
  2. 2.091 km W of Trinidad, California · 17530 days ago · 5 km deep · 17 km away
  3. 2.072 km WNW of Samoa, California · 17530 days ago · 4 km deep · 5 km away
  4. 4.6111 km W of Trinidad, California · 17530 days ago · 5 km deep · 38 km away
  5. 1.615 km WSW of Scotia, California · 17533 days ago · 18 km deep · 94 km away
  6. 2.024 km W of Indianola, California · 17533 days ago · 23 km deep · 56 km away
  7. 1.541 km SW of Ferndale, California · 17534 days ago · 20 km deep · 88 km away
  8. 1.8118 km W of Ferndale, California · 17535 days ago · 5 km deep · 81 km away
  9. 1.527 km WSW of Ferndale, California · 17535 days ago · 18 km deep · 75 km away
  10. 2.4near the coast of Northern California · 17536 days ago · 19 km deep · 87 km away
  11. 1.625 km SSW of Ferndale, California · 17536 days ago · 19 km deep · 87 km away
  12. 2.835 km SW of Ferndale, California · 17536 days ago · 24 km deep · 90 km away
  13. 1.618 km SW of Scotia, California · 17537 days ago · 30 km deep · 98 km away
  14. 1.616 km SSW of Ferndale, California · 17537 days ago · 20 km deep · 89 km away
  15. 2.138 km SW of Ferndale, California · 17537 days ago · 22 km deep · 87 km away
  16. 1.626 km SW of Ferndale, California · 17537 days ago · 25 km deep · 77 km away
  17. 2.395 km WSW of Ferndale, California · 17538 days ago · 5 km deep · 74 km away
  18. 2.3114 km W of Ferndale, California · 17538 days ago · 5 km deep · 68 km away
  19. 1.634 km W of Ferndale, California · 17538 days ago · 13 km deep · 55 km away
  20. 1.514 km WSW of Scotia, California · 17538 days ago · 21 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1042473. Read Tue, Sep 22, 2026, 5:23 PM UTC.