California earthquakes

M2.4 earthquake 16 km WNW of Samoa, California

A magnitude 2.4 earthquake struck 16 km WNW of Samoa, California on Thu, Mar 2, 1978, 4:09 PM PST (00:09 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M2.8 22 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
1978-03-03 00:09:28 UTC
Depth
23.1 km (14.4 mi), shallow
Epicenter
40.901° N, 124.353° 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 1.2 km horizontally, 1.0 km in depth
Depth from
From location
Station coverage gap
244°, poorly surrounded by stations
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 149 in the 60 days after this one and 47 in the 30 days before it.

After

  1. 2.355 km W of Ferndale, California · 17735 days ago · 23 km deep · 63 km away
  2. 1.620 km W of Big Lagoon, California · 17734 days ago · 22 km deep · 27 km away
  3. 1.5near the coast of Northern California · 17733 days ago · 17 km deep · 59 km away
  4. 1.7near the coast of Northern California · 17733 days ago · 9 km deep · 31 km away
  5. 2.822 km SW of Ferndale, California · 17730 days ago · 21 km deep · 53 km away
  6. 1.621 km SW of Ferndale, California · 17730 days ago · 21 km deep · 54 km away
  7. 1.89 km ENE of Redcrest, California · 17730 days ago · 21 km deep · 66 km away
  8. 3.038 km SW of Ferndale, California · 17728 days ago · 23 km deep · 67 km away
  9. 1.619 km SW of Ferndale, California · 17728 days ago · 22 km deep · 52 km away
  10. 2.410 km SE of Blue Lake, California · 17727 days ago · 25 km deep · 40 km away
  11. 1.711 km SE of Blue Lake, California · 17727 days ago · 25 km deep · 40 km away
  12. 3.214 km NE of Redcrest, California · 17725 days ago · 24 km deep · 63 km away
  13. 2.68 km W of Indianola, California · 17725 days ago · 19 km deep · 24 km away
  14. 2.832 km SSW of Ferndale, California · 17724 days ago · 21 km deep · 65 km away
  15. 1.98 km S of Ferndale, California · 17724 days ago · 23 km deep · 45 km away
  16. 1.656 km W of Trinidad, California · 17724 days ago · 6 km deep · 40 km away
  17. 2.210 km S of Ferndale, California · 17723 days ago · 19 km deep · 46 km away
  18. 2.310 km S of Ferndale, California · 17723 days ago · 18 km deep · 47 km away
  19. 1.816 km SW of Scotia, California · 17723 days ago · 26 km deep · 60 km away
  20. 1.78 km W of Indianola, California · 17721 days ago · 19 km deep · 24 km away
  21. 2.317 km WSW of Ferndale, California · 17720 days ago · 22 km deep · 46 km away
  22. 2.60 km ESE of Redway, California · 17720 days ago · 18 km deep · 98 km away
  23. 1.724 km WSW of Ferndale, California · 17719 days ago · 19 km deep · 49 km away
  24. 2.032 km WSW of Ferndale, California · 17719 days ago · 18 km deep · 54 km away
  25. 1.618 km SSW of Ferndale, California · 17719 days ago · 22 km deep · 53 km away
  26. 1.629 km W of Ferndale, California · 17719 days ago · 21 km deep · 42 km away
  27. 1.933 km SW of Ferndale, California · 17719 days ago · 22 km deep · 59 km away
  28. 2.329 km WSW of Ferndale, California · 17719 days ago · 17 km deep · 52 km away
  29. 2.231 km WSW of Ferndale, California · 17719 days ago · 17 km deep · 54 km away
  30. 2.431 km WSW of Ferndale, California · 17719 days ago · 19 km deep · 55 km away
  31. 1.933 km SW of Scotia, California · 17719 days ago · 16 km deep · 68 km away
  32. 2.332 km WSW of Ferndale, California · 17719 days ago · 18 km deep · 55 km away
  33. 1.742 km WSW of Ferndale, California · 17719 days ago · 16 km deep · 61 km away
  34. 2.338 km WSW of Ferndale, California · 17719 days ago · 19 km deep · 59 km away
  35. 2.629 km WSW of Ferndale, California · 17719 days ago · 20 km deep · 54 km away
  36. 2.211 km E of Westhaven-Moonstone, California · 17718 days ago · 18 km deep · 37 km away
  37. 1.627 km SW of Scotia, California · 17718 days ago · 23 km deep · 64 km away
  38. 1.827 km SW of Scotia, California · 17718 days ago · 7 km deep · 65 km away
  39. 2.19 km WSW of Rio Dell, California · 17717 days ago · 2 km deep · 49 km away
  40. 1.99 km WSW of Rio Dell, California · 17717 days ago · 3 km deep · 49 km away
  41. 1.611 km WSW of Scotia, California · 17717 days ago · 8 km deep · 50 km away
  42. 1.610 km WSW of Rio Dell, California · 17717 days ago · 3 km deep · 48 km away
  43. 3.79 km WSW of Rio Dell, California · 17717 days ago · 5 km deep · 49 km away
  44. 1.79 km WSW of Rio Dell, California · 17717 days ago · 3 km deep · 49 km away
  45. 1.79 km WSW of Rio Dell, California · 17717 days ago · 2 km deep · 49 km away
  46. 1.910 km WSW of Rio Dell, California · 17717 days ago · 5 km deep · 49 km away
  47. 2.09 km WSW of Rio Dell, California · 17717 days ago · 5 km deep · 49 km away
  48. 1.610 km WSW of Rio Dell, California · 17717 days ago · 3 km deep · 49 km away
  49. 2.09 km WSW of Scotia, California · 17717 days ago · 4 km deep · 50 km away
  50. 3.19 km W of Scotia, California · 17717 days ago · 5 km deep · 50 km away
  51. 1.510 km WSW of Rio Dell, California · 17717 days ago · 4 km deep · 48 km away
  52. 2.110 km WSW of Rio Dell, California · 17717 days ago · 6 km deep · 49 km away
  53. 1.69 km WSW of Rio Dell, California · 17717 days ago · 3 km deep · 49 km away
  54. 1.710 km WSW of Rio Dell, California · 17717 days ago · 3 km deep · 49 km away
  55. 2.124 km SSW of Ferndale, California · 17717 days ago · 22 km deep · 57 km away
  56. 2.09 km WSW of Rio Dell, California · 17717 days ago · 4 km deep · 49 km away
  57. 2.69 km WSW of Rio Dell, California · 17717 days ago · 5 km deep · 49 km away
  58. 1.722 km SSW of Ferndale, California · 17717 days ago · 27 km deep · 58 km away
  59. 2.317 km SW of Scotia, California · 17717 days ago · 26 km deep · 61 km away
  60. 1.610 km WSW of Rio Dell, California · 17717 days ago · 4 km deep · 48 km away

The first 60 of 149.

Before

  1. 1.6near the coast of Northern California · 17737 days ago · 19 km deep · 48 km away
  2. 1.610 km S of Ferndale, California · 17737 days ago · 18 km deep · 47 km away
  3. 2.134 km SW of Ferndale, California · 17738 days ago · 17 km deep · 60 km away
  4. 2.256 km WNW of Ferndale, California · 17740 days ago · 15 km deep · 52 km away
  5. 2.557 km WNW of Ferndale, California · 17740 days ago · 25 km deep · 53 km away
  6. 1.610 km S of Ferndale, California · 17742 days ago · 15 km deep · 46 km away
  7. 1.510 km S of Ferndale, California · 17742 days ago · 18 km deep · 47 km away
  8. 2.710 km S of Ferndale, California · 17742 days ago · 18 km deep · 47 km away
  9. 3.359 km WNW of Ferndale, California · 17743 days ago · 25 km deep · 55 km away
  10. 2.638 km SW of Ferndale, California · 17744 days ago · 22 km deep · 69 km away
  11. 1.819 km SW of Ferndale, California · 17745 days ago · 24 km deep · 52 km away
  12. 2.110 km S of Ferndale, California · 17746 days ago · 19 km deep · 47 km away
  13. 1.610 km S of Ferndale, California · 17746 days ago · 18 km deep · 47 km away
  14. 1.610 km S of Ferndale, California · 17746 days ago · 19 km deep · 47 km away
  15. 1.510 km S of Ferndale, California · 17746 days ago · 19 km deep · 47 km away
  16. 1.74 km NW of Trinity Village, California · 17746 days ago · 25 km deep · 65 km away
  17. 1.610 km S of Ferndale, California · 17747 days ago · 19 km deep · 47 km away
  18. 2.210 km S of Ferndale, California · 17747 days ago · 18 km deep · 47 km away
  19. 2.633 km NW of Shelter Cove, California · 17747 days ago · 9 km deep · 73 km away
  20. 1.827 km WNW of Ferndale, California · 17748 days ago · 24 km deep · 32 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1039143. Read Tue, Sep 22, 2026, 9:34 PM UTC.