Alaska earthquakes

M4.3 earthquake 86 km SE of Adak, Alaska

A magnitude 4.3 earthquake struck 86 km SE of Adak, Alaska on Sat, May 31, 1986, 12:53 PM HADT (21:53 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M6.5 57 km S of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
4.3 (mb), light
Local time
UTC
1986-05-31 21:53:55 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.343° N, 175.727° 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: 63 in the 60 days after this one and at least 200 in the 30 days before it.

After

  1. 4.247 km ENE of Adak, Alaska · 14730 days ago · 33 km deep · 86 km away
  2. 4.575 km SSW of Atka, Alaska · 14730 days ago · 33 km deep · 81 km away
  3. 4.4105 km SSW of Atka, Alaska · 14730 days ago · 33 km deep · 48 km away
  4. 4.181 km SSE of Adak, Alaska · 14729 days ago · 33 km deep · 39 km away
  5. 5.299 km SSW of Atka, Alaska · 14728 days ago · 33 km deep · 75 km away
  6. 5.493 km SSW of Atka, Alaska · 14728 days ago · 33 km deep · 73 km away
  7. 4.988 km SSW of Atka, Alaska · 14727 days ago · 33 km deep · 76 km away
  8. 5.1106 km SE of Adak, Alaska · 14726 days ago · 33 km deep · 26 km away
  9. 4.461 km SW of Atka, Alaska · 14725 days ago · 33 km deep · 83 km away
  10. 4.885 km SSW of Atka, Alaska · 14724 days ago · 33 km deep · 64 km away
  11. 4.871 km SW of Atka, Alaska · 14724 days ago · 33 km deep · 74 km away
  12. 4.379 km SSE of Adak, Alaska · 14722 days ago · 33 km deep · 20 km away
  13. 4.577 km SE of Adak, Alaska · 14721 days ago · 33 km deep · 18 km away
  14. 4.682 km SE of Adak, Alaska · 14721 days ago · 33 km deep · 4 km away
  15. 4.397 km SSW of Atka, Alaska · 14717 days ago · 33 km deep · 67 km away
  16. 4.493 km ESE of Adak, Alaska · 14716 days ago · 33 km deep · 37 km away
  17. 4.5104 km SW of Atka, Alaska · 14714 days ago · 33 km deep · 40 km away
  18. 6.557 km S of Adak, Alaska · 14713 days ago · 27 km deep · 64 km away
  19. 4.589 km SSE of Adak, Alaska · 14713 days ago · 33 km deep · 28 km away
  20. 4.883 km SSE of Adak, Alaska · 14713 days ago · 33 km deep · 34 km away
  21. 4.271 km SE of Adak, Alaska · 14713 days ago · 33 km deep · 16 km away
  22. 4.536 km SW of Adak, Alaska · 14713 days ago · 33 km deep · 90 km away
  23. 4.576 km SE of Adak, Alaska · 14710 days ago · 33 km deep · 11 km away
  24. 4.7100 km SSW of Atka, Alaska · 14710 days ago · 33 km deep · 64 km away
  25. 5.4125 km SE of Adak, Alaska · 14710 days ago · 33 km deep · 41 km away
  26. 4.4135 km SE of Adak, Alaska · 14710 days ago · 33 km deep · 49 km away
  27. 4.887 km SW of Atka, Alaska · 14710 days ago · 33 km deep · 54 km away
  28. 4.665 km WSW of Atka, Alaska · 14710 days ago · 33 km deep · 91 km away
  29. 4.2118 km SSW of Atka, Alaska · 14709 days ago · 33 km deep · 41 km away
  30. 4.4109 km SW of Atka, Alaska · 14709 days ago · 33 km deep · 38 km away
  31. 4.6101 km SE of Adak, Alaska · 14709 days ago · 33 km deep · 17 km away
  32. 4.383 km SW of Atka, Alaska · 14708 days ago · 33 km deep · 59 km away
  33. 4.853 km S of Adak, Alaska · 14702 days ago · 33 km deep · 67 km away
  34. 4.558 km S of Adak, Alaska · 14702 days ago · 33 km deep · 67 km away
  35. 4.455 km SE of Adak, Alaska · 14702 days ago · 33 km deep · 33 km away
  36. 5.475 km SSE of Adak, Alaska · 14702 days ago · 33 km deep · 32 km away
  37. 4.236 km S of Adak, Alaska · 14702 days ago · 33 km deep · 64 km away
  38. 4.093 km SSE of Adak, Alaska · 14702 days ago · 33 km deep · 39 km away
  39. 4.291 km SSE of Adak, Alaska · 14701 days ago · 33 km deep · 37 km away
  40. 4.484 km SSE of Adak, Alaska · 14701 days ago · 33 km deep · 35 km away
  41. 4.761 km SW of Adak, Alaska · 14701 days ago · 33 km deep · 98 km away
  42. 5.063 km SE of Adak, Alaska · 14698 days ago · 33 km deep · 23 km away
  43. 4.975 km ESE of Adak, Alaska · 14698 days ago · 33 km deep · 18 km away
  44. 4.569 km SE of Adak, Alaska · 14694 days ago · 33 km deep · 21 km away
  45. 4.5Andreanof Islands, Aleutian Islands, Alaska · 14693 days ago · 33 km deep · 40 km away
  46. 5.527 km E of Adak, Alaska · 14692 days ago · 50 km deep · 72 km away
  47. 5.026 km SW of Adak, Alaska · 14692 days ago · 57 km deep · 88 km away
  48. 4.888 km SSW of Atka, Alaska · 14684 days ago · 33 km deep · 80 km away
  49. 4.0101 km SW of Atka, Alaska · 14682 days ago · 33 km deep · 43 km away
  50. 4.879 km SE of Adak, Alaska · 14680 days ago · 33 km deep · 11 km away
  51. 5.257 km SSE of Adak, Alaska · 14679 days ago · 33 km deep · 34 km away
  52. 4.983 km SSE of Adak, Alaska · 14679 days ago · 33 km deep · 34 km away
  53. 4.952 km S of Adak, Alaska · 14678 days ago · 33 km deep · 67 km away
  54. 4.993 km SW of Atka, Alaska · 14677 days ago · 33 km deep · 49 km away
  55. 5.876 km SSE of Adak, Alaska · 14676 days ago · 33 km deep · 33 km away
  56. 5.683 km SSE of Adak, Alaska · 14676 days ago · 33 km deep · 25 km away
  57. 4.669 km ESE of Adak, Alaska · 14676 days ago · 33 km deep · 46 km away
  58. 4.793 km SSE of Adak, Alaska · 14676 days ago · 33 km deep · 24 km away
  59. 4.497 km SSE of Adak, Alaska · 14675 days ago · 33 km deep · 43 km away
  60. 4.844 km E of Adak, Alaska · 14674 days ago · 33 km deep · 61 km away

The first 60 of 63.

Before

  1. 4.8113 km SE of Adak, Alaska · 14733 days ago · 33 km deep · 30 km away
  2. 4.992 km ESE of Adak, Alaska · 14733 days ago · 33 km deep · 45 km away
  3. 4.881 km SSE of Adak, Alaska · 14734 days ago · 33 km deep · 27 km away
  4. 4.281 km SE of Adak, Alaska · 14735 days ago · 33 km deep · 6 km away
  5. 4.752 km SSW of Atka, Alaska · 14736 days ago · 33 km deep · 95 km away
  6. 4.896 km SSW of Atka, Alaska · 14737 days ago · 33 km deep · 64 km away
  7. 4.763 km SSE of Adak, Alaska · 14737 days ago · 33 km deep · 29 km away
  8. 4.892 km SSE of Adak, Alaska · 14737 days ago · 33 km deep · 32 km away
  9. 5.091 km SW of Atka, Alaska · 14738 days ago · 33 km deep · 51 km away
  10. 4.655 km SW of Atka, Alaska · 14738 days ago · 33 km deep · 87 km away
  11. 4.689 km SSE of Adak, Alaska · 14738 days ago · 33 km deep · 42 km away
  12. 4.989 km SSE of Adak, Alaska · 14739 days ago · 33 km deep · 36 km away
  13. 4.5104 km SE of Adak, Alaska · 14740 days ago · 33 km deep · 19 km away
  14. 4.573 km ESE of Adak, Alaska · 14740 days ago · 33 km deep · 27 km away
  15. 4.885 km E of Adak, Alaska · 14741 days ago · 33 km deep · 59 km away
  16. 4.898 km SE of Adak, Alaska · 14741 days ago · 33 km deep · 15 km away
  17. 4.668 km SSE of Adak, Alaska · 14741 days ago · 33 km deep · 32 km away
  18. 3.875 km SE of Adak, Alaska · 14742 days ago · 33 km deep · 13 km away
  19. 4.795 km S of Adak, Alaska · 14742 days ago · 33 km deep · 58 km away
  20. 4.886 km S of Adak, Alaska · 14742 days ago · 33 km deep · 58 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002un8. Read Tue, Sep 29, 2026, 6:16 PM UTC.