Alaska earthquakes

M4.5 earthquake 36 km SW of Adak, Alaska

A magnitude 4.5 earthquake struck 36 km SW of Adak, Alaska on Wed, Jun 18, 1986, 12:47 PM HADT (21:47 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M4.8 53 km S of Adak, Alaska. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.5 (mb), light
Local time
UTC
1986-06-18 21:47:49 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.613° N, 176.945° W
Region
Alaska
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.

Depth from
OPERATOR_ASSIGNED

Nearby

Within 100 km, magnitude 1.5 and up: 36 in the 60 days after this one and 23 in the 30 days before it.

After

  1. 4.576 km SE of Adak, Alaska · 14703 days ago · 33 km deep · 79 km away
  2. 4.263 km SW of Adak, Alaska · 14702 days ago · 33 km deep · 28 km away
  3. 4.359 km SW of Adak, Alaska · 14702 days ago · 33 km deep · 24 km away
  4. 4.853 km S of Adak, Alaska · 14695 days ago · 33 km deep · 31 km away
  5. 4.558 km S of Adak, Alaska · 14695 days ago · 33 km deep · 34 km away
  6. 4.455 km SE of Adak, Alaska · 14695 days ago · 33 km deep · 67 km away
  7. 5.475 km SSE of Adak, Alaska · 14695 days ago · 33 km deep · 67 km away
  8. 4.236 km S of Adak, Alaska · 14695 days ago · 33 km deep · 25 km away
  9. 4.093 km SSE of Adak, Alaska · 14695 days ago · 33 km deep · 81 km away
  10. 4.291 km SSE of Adak, Alaska · 14695 days ago · 33 km deep · 79 km away
  11. 4.484 km SSE of Adak, Alaska · 14695 days ago · 33 km deep · 73 km away
  12. 4.761 km SW of Adak, Alaska · 14694 days ago · 33 km deep · 25 km away
  13. 5.063 km SE of Adak, Alaska · 14691 days ago · 33 km deep · 71 km away
  14. 4.975 km ESE of Adak, Alaska · 14691 days ago · 33 km deep · 86 km away
  15. 4.569 km SE of Adak, Alaska · 14688 days ago · 33 km deep · 69 km away
  16. 5.527 km E of Adak, Alaska · 14685 days ago · 50 km deep · 59 km away
  17. 5.026 km SW of Adak, Alaska · 14685 days ago · 57 km deep · 9 km away
  18. 4.879 km SE of Adak, Alaska · 14673 days ago · 33 km deep · 87 km away
  19. 5.257 km SSE of Adak, Alaska · 14672 days ago · 33 km deep · 55 km away
  20. 4.983 km SSE of Adak, Alaska · 14672 days ago · 33 km deep · 72 km away
  21. 4.952 km S of Adak, Alaska · 14671 days ago · 33 km deep · 29 km away
  22. 5.876 km SSE of Adak, Alaska · 14670 days ago · 33 km deep · 67 km away
  23. 5.683 km SSE of Adak, Alaska · 14670 days ago · 33 km deep · 77 km away
  24. 4.669 km ESE of Adak, Alaska · 14670 days ago · 33 km deep · 91 km away
  25. 4.793 km SSE of Adak, Alaska · 14669 days ago · 33 km deep · 87 km away
  26. 4.497 km SSE of Adak, Alaska · 14668 days ago · 33 km deep · 84 km away
  27. 4.844 km E of Adak, Alaska · 14667 days ago · 33 km deep · 72 km away
  28. 4.883 km SSE of Adak, Alaska · 14662 days ago · 33 km deep · 71 km away
  29. 4.986 km SSE of Adak, Alaska · 14662 days ago · 33 km deep · 75 km away
  30. 4.354 km SSE of Adak, Alaska · 14662 days ago · 33 km deep · 51 km away
  31. 5.076 km SE of Adak, Alaska · 14662 days ago · 33 km deep · 74 km away
  32. 5.979 km S of Adak, Alaska · 14660 days ago · 33 km deep · 51 km away
  33. 4.784 km S of Adak, Alaska · 14660 days ago · 33 km deep · 58 km away
  34. 4.987 km S of Adak, Alaska · 14660 days ago · 33 km deep · 60 km away
  35. 4.780 km S of Adak, Alaska · 14660 days ago · 33 km deep · 55 km away
  36. 4.5112 km W of Adak, Alaska · 14656 days ago · 92 km deep · 95 km away

Before

  1. 4.271 km SE of Adak, Alaska · 14706 days ago · 33 km deep · 73 km away
  2. 4.883 km SSE of Adak, Alaska · 14706 days ago · 33 km deep · 73 km away
  3. 4.589 km SSE of Adak, Alaska · 14707 days ago · 33 km deep · 81 km away
  4. 6.557 km S of Adak, Alaska · 14707 days ago · 27 km deep · 35 km away
  5. 4.682 km SE of Adak, Alaska · 14714 days ago · 33 km deep · 86 km away
  6. 4.577 km SE of Adak, Alaska · 14714 days ago · 33 km deep · 75 km away
  7. 4.379 km SSE of Adak, Alaska · 14715 days ago · 33 km deep · 75 km away
  8. 4.7107 km SSW of Adak, Alaska · 14716 days ago · 33 km deep · 71 km away
  9. 4.181 km SSE of Adak, Alaska · 14723 days ago · 33 km deep · 69 km away
  10. 4.247 km ENE of Adak, Alaska · 14723 days ago · 33 km deep · 82 km away
  11. 4.386 km SE of Adak, Alaska · 14724 days ago · 33 km deep · 90 km away
  12. 4.881 km SSE of Adak, Alaska · 14727 days ago · 33 km deep · 74 km away
  13. 4.281 km SE of Adak, Alaska · 14729 days ago · 33 km deep · 86 km away
  14. 4.763 km SSE of Adak, Alaska · 14730 days ago · 33 km deep · 61 km away
  15. 4.892 km SSE of Adak, Alaska · 14731 days ago · 33 km deep · 83 km away
  16. 4.689 km SSE of Adak, Alaska · 14731 days ago · 33 km deep · 76 km away
  17. 4.989 km SSE of Adak, Alaska · 14733 days ago · 33 km deep · 78 km away
  18. 4.573 km ESE of Adak, Alaska · 14734 days ago · 33 km deep · 87 km away
  19. 4.668 km SSE of Adak, Alaska · 14735 days ago · 33 km deep · 61 km away
  20. 3.875 km SE of Adak, Alaska · 14735 days ago · 33 km deep · 77 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002v65. Read Tue, Sep 22, 2026, 11:28 PM UTC.