California earthquakes

M2.6 earthquake 48 km WNW of Samoa, California

A magnitude 2.6 earthquake struck 48 km WNW of Samoa, California on Mon, Mar 2, 1987, 3:22 AM PST (11:22 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M4.2 32 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
2.6 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1987-03-02 11:22:18 UTC
Depth
10.7 km (6.6 mi), shallow
Epicenter
40.979° N, 124.719° 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 6.0 km horizontally, 3.5 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
317°, poorly surrounded by stations
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: 36 in the 60 days after this one and 16 in the 30 days before it.

After

  1. 3.125 km WNW of Ferndale, California · 14455 days ago · 16 km deep · 37 km away
  2. 2.043 km WSW of Ferndale, California · 14454 days ago · 3 km deep · 56 km away
  3. 2.326 km SW of Ferndale, California · 14453 days ago · 14 km deep · 71 km away
  4. 2.810 km WNW of Manila, California · 14452 days ago · 28 km deep · 38 km away
  5. 2.9119 km W of Crescent City, California · 14451 days ago · -1 km deep · 99 km away
  6. 2.686 km W of Ferndale, California · 14447 days ago · 6 km deep · 67 km away
  7. 3.172 km W of Ferndale, California · 14445 days ago · -1 km deep · 66 km away
  8. 2.392 km W of Ferndale, California · 14433 days ago · 5 km deep · 80 km away
  9. 1.727 km SW of Scotia, California · 14431 days ago · 4 km deep · 83 km away
  10. 1.813 km ESE of Blue Lake, California · 14429 days ago · 5 km deep · 76 km away
  11. 3.633 km WSW of Ferndale, California · 14429 days ago · 23 km deep · 63 km away
  12. 2.136 km WSW of Ferndale, California · 14429 days ago · 25 km deep · 61 km away
  13. 2.236 km WSW of Ferndale, California · 14429 days ago · 23 km deep · 62 km away
  14. 2.1near the coast of Northern California · 14426 days ago · 11 km deep · 76 km away
  15. 1.817 km SW of Scotia, California · 14424 days ago · 4 km deep · 80 km away
  16. 2.442 km WSW of Ferndale, California · 14421 days ago · 23 km deep · 66 km away
  17. 2.07 km ESE of Scotia, California · 14421 days ago · 0 km deep · 83 km away
  18. 2.229 km SW of Ferndale, California · 14418 days ago · 18 km deep · 71 km away
  19. 3.2112 km W of Ferndale, California · 14417 days ago · 2 km deep · 97 km away
  20. 2.788 km W of Ferndale, California · 14416 days ago · 13 km deep · 75 km away
  21. 3.030 km W of Indianola, California · 14415 days ago · 23 km deep · 34 km away
  22. 3.669 km WSW of Ferndale, California · 14413 days ago · 38 km deep · 67 km away
  23. 2.578 km W of Ferndale, California · 14413 days ago · 4 km deep · 70 km away
  24. 4.232 km SW of Ferndale, California · 14413 days ago · 25 km deep · 67 km away
  25. 3.2near the coast of Northern California · 14413 days ago · 24 km deep · 66 km away
  26. 2.635 km SW of Ferndale, California · 14413 days ago · 24 km deep · 65 km away
  27. 1.745 km WSW of Ferndale, California · 14413 days ago · 4 km deep · 61 km away
  28. 2.831 km WSW of Ferndale, California · 14413 days ago · 24 km deep · 63 km away
  29. 2.526 km SSW of Ferndale, California · 14410 days ago · 16 km deep · 72 km away
  30. 2.635 km SW of Ferndale, California · 14409 days ago · 25 km deep · 66 km away
  31. 3.588 km W of Ferndale, California · 14408 days ago · 8 km deep · 76 km away
  32. 2.583 km W of Ferndale, California · 14408 days ago · 4 km deep · 73 km away
  33. 1.89 km SSE of Blue Lake, California · 14403 days ago · 26 km deep · 69 km away
  34. 2.737 km SW of Ferndale, California · 14402 days ago · 20 km deep · 76 km away
  35. 2.727 km SSW of Ferndale, California · 14401 days ago · -1 km deep · 74 km away
  36. 2.110 km SSW of Scotia, California · 14401 days ago · 4 km deep · 81 km away

Before

  1. 3.137 km SW of Ferndale, California · 14458 days ago · 20 km deep · 78 km away
  2. 3.282 km W of Samoa, California · 14459 days ago · 15 km deep · 36 km away
  3. 2.037 km W of Ferndale, California · 14460 days ago · 12 km deep · 41 km away
  4. 3.674 km SW of Ferndale, California · 14460 days ago · 2 km deep · 91 km away
  5. 2.118 km ENE of Westhaven-Moonstone, California · 14461 days ago · 11 km deep · 70 km away
  6. 2.881 km WNW of Ferndale, California · 14463 days ago · 22 km deep · 49 km away
  7. 2.956 km WSW of Ferndale, California · 14463 days ago · -1 km deep · 64 km away
  8. 2.410 km W of Scotia, California · 14476 days ago · 4 km deep · 70 km away
  9. 2.729 km WSW of Ferndale, California · 14477 days ago · 23 km deep · 56 km away
  10. 2.641 km SW of Ferndale, California · 14477 days ago · 28 km deep · 74 km away
  11. 1.8near the coast of Northern California · 14479 days ago · 21 km deep · 82 km away
  12. 1.911 km ENE of Hydesville, California · 14479 days ago · 22 km deep · 78 km away
  13. 2.540 km W of Indianola, California · 14480 days ago · 19 km deep · 27 km away
  14. 2.445 km W of Ferndale, California · 14480 days ago · 24 km deep · 41 km away
  15. 3.89 km W of Ferndale, California · 14486 days ago · 28 km deep · 52 km away
  16. 1.724 km SW of Scotia, California · 14487 days ago · 4 km deep · 76 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc10083945. Read Thu, Oct 1, 2026, 6:42 AM UTC.