California earthquakes

M2.4 earthquake 75 km WNW of Samoa, California

A magnitude 2.4 earthquake struck 75 km WNW of Samoa, California on Thu, Apr 3, 1986, 4:42 AM PST (12:42 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M4.4 74 km WSW 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
1986-04-03 12:42:47 UTC
Depth
4.4 km (2.7 mi), shallow
Epicenter
40.984° N, 125.057° 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 7.9 km horizontally, 6.5 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
294°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 29 in the 60 days after this one and 16 in the 30 days before it.

After

  1. 3.119 km WSW of Scotia, California · 14785 days ago · 22 km deep · 93 km away
  2. 2.294 km W of Ferndale, California · 14784 days ago · 5 km deep · 64 km away
  3. 4.474 km WSW of Ferndale, California · 14778 days ago · 4 km deep · 66 km away
  4. 3.251 km SW of Ferndale, California · 14778 days ago · 11 km deep · 86 km away
  5. 2.531 km SW of Scotia, California · 14778 days ago · 5 km deep · 95 km away
  6. 2.012 km WNW of Fields Landing, California · 14778 days ago · 15 km deep · 64 km away
  7. 3.564 km W of Ferndale, California · 14778 days ago · 0 km deep · 58 km away
  8. 2.238 km WSW of Ferndale, California · 14777 days ago · 24 km deep · 71 km away
  9. 2.25 km SSW of Ferndale, California · 14776 days ago · 8 km deep · 83 km away
  10. 1.923 km WSW of Ferndale, California · 14772 days ago · 26 km deep · 74 km away
  11. 3.0103 km W of Big Lagoon, California · 14772 days ago · 23 km deep · 40 km away
  12. 2.522 km WSW of Ferndale, California · 14772 days ago · 26 km deep · 74 km away
  13. 2.029 km W of Ferndale, California · 14772 days ago · 25 km deep · 60 km away
  14. 1.930 km SW of Scotia, California · 14771 days ago · 1 km deep · 94 km away
  15. 2.635 km SSW of Ferndale, California · 14768 days ago · 21 km deep · 90 km away
  16. 2.024 km W of Ferndale, California · 14767 days ago · 24 km deep · 63 km away
  17. 2.545 km SW of Ferndale, California · 14766 days ago · 22 km deep · 78 km away
  18. 3.923 km WNW of Indianola, California · 14762 days ago · 23 km deep · 54 km away
  19. 2.038 km WNW of Big Lagoon, California · 14759 days ago · 20 km deep · 55 km away
  20. 2.238 km W of Trinidad, California · 14758 days ago · 22 km deep · 41 km away
  21. 2.123 km WNW of Fields Landing, California · 14757 days ago · 12 km deep · 53 km away
  22. 2.84 km WNW of Hydesville, California · 14757 days ago · 10 km deep · 90 km away
  23. 3.033 km SW of Ferndale, California · 14756 days ago · 25 km deep · 80 km away
  24. 2.8107 km WSW of Ferndale, California · 14754 days ago · 9 km deep · 78 km away
  25. 2.838 km NW of Shelter Cove, California · 14752 days ago · 4 km deep · 99 km away
  26. 2.784 km WSW of Ferndale, California · 14752 days ago · 4 km deep · 72 km away
  27. 2.45 km E of Hydesville, California · 14751 days ago · 19 km deep · 99 km away
  28. 2.511 km W of Indianola, California · 14750 days ago · 6 km deep · 67 km away
  29. 3.9121 km W of Ferndale, California · 14746 days ago · 4 km deep · 75 km away

Before

  1. 2.431 km SW of Scotia, California · 14791 days ago · 24 km deep · 98 km away
  2. 3.036 km SW of Scotia, California · 14792 days ago · 2 km deep · 96 km away
  3. 3.235 km SW of Scotia, California · 14792 days ago · 22 km deep · 96 km away
  4. 2.132 km SSW of Ferndale, California · 14793 days ago · 6 km deep · 91 km away
  5. 2.932 km SSW of Ferndale, California · 14800 days ago · 4 km deep · 91 km away
  6. 3.588 km WNW of Indianola, California · 14803 days ago · 5 km deep · 16 km away
  7. 2.4near the coast of Northern California · 14804 days ago · 4 km deep · 71 km away
  8. 2.027 km SSW of Ferndale, California · 14804 days ago · 15 km deep · 89 km away
  9. 3.995 km W of Ferndale, California · 14813 days ago · 8 km deep · 67 km away
  10. 3.1near the coast of Northern California · 14813 days ago · 11 km deep · 84 km away
  11. 3.6near the coast of Northern California · 14813 days ago · 20 km deep · 98 km away
  12. 2.339 km WSW of Ferndale, California · 14815 days ago · 15 km deep · 67 km away
  13. 3.337 km WSW of Ferndale, California · 14816 days ago · 22 km deep · 68 km away
  14. 3.057 km WSW of Ferndale, California · 14816 days ago · 4 km deep · 69 km away
  15. 3.836 km SSW of Ferndale, California · 14816 days ago · -1 km deep · 93 km away
  16. 2.192 km WSW of Ferndale, California · 14818 days ago · 4 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc10084533. Read Wed, Sep 30, 2026, 3:20 AM UTC.