Alaska earthquakes

M4.5 earthquake 23 km SE of Adak, Alaska

A magnitude 4.5 earthquake struck 23 km SE of Adak, Alaska on Sun, May 11, 1986, 5:35 AM HADT (14:35 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M4.9 67 km S of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
4.5 (mb), light
Local time
UTC
1986-05-11 14:35:56 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.706° N, 176.430° 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: 87 in the 60 days after this one and 86 in the 30 days before it.

After

  1. 4.967 km S of Adak, Alaska · 14744 days ago · 33 km deep · 50 km away
  2. 4.6Andreanof Islands, Aleutian Islands, Alaska · 14744 days ago · 33 km deep · 29 km away
  3. 4.287 km SSE of Adak, Alaska · 14744 days ago · 33 km deep · 65 km away
  4. 4.489 km SSE of Adak, Alaska · 14744 days ago · 33 km deep · 68 km away
  5. 4.891 km SSE of Adak, Alaska · 14744 days ago · 33 km deep · 68 km away
  6. 4.750 km SSE of Adak, Alaska · 14744 days ago · 33 km deep · 28 km away
  7. 4.2Andreanof Islands, Aleutian Islands, Alaska · 14744 days ago · 33 km deep · 68 km away
  8. 4.795 km ESE of Adak, Alaska · 14744 days ago · 33 km deep · 74 km away
  9. 3.888 km SSE of Adak, Alaska · 14744 days ago · 33 km deep · 66 km away
  10. 4.380 km SW of Atka, Alaska · 14743 days ago · 33 km deep · 91 km away
  11. 4.990 km SSE of Adak, Alaska · 14743 days ago · 33 km deep · 68 km away
  12. 4.873 km ESE of Adak, Alaska · 14742 days ago · 33 km deep · 53 km away
  13. 4.984 km SSE of Adak, Alaska · 14742 days ago · 33 km deep · 63 km away
  14. 4.783 km SE of Adak, Alaska · 14741 days ago · 33 km deep · 60 km away
  15. 4.882 km SE of Adak, Alaska · 14741 days ago · 33 km deep · 59 km away
  16. 4.993 km SE of Adak, Alaska · 14741 days ago · 33 km deep · 72 km away
  17. 4.098 km SW of Atka, Alaska · 14740 days ago · 33 km deep · 92 km away
  18. 4.3114 km SE of Adak, Alaska · 14740 days ago · 33 km deep · 92 km away
  19. 5.082 km WSW of Atka, Alaska · 14740 days ago · 33 km deep · 82 km away
  20. 4.6101 km SW of Atka, Alaska · 14740 days ago · 33 km deep · 91 km away
  21. 4.889 km SW of Atka, Alaska · 14739 days ago · 33 km deep · 86 km away
  22. 4.7Andreanof Islands, Aleutian Islands, Alaska · 14739 days ago · 33 km deep · 77 km away
  23. 3.880 km SE of Adak, Alaska · 14739 days ago · 33 km deep · 58 km away
  24. 4.677 km SSE of Adak, Alaska · 14738 days ago · 33 km deep · 54 km away
  25. 4.555 km SSW of Adak, Alaska · 14738 days ago · 33 km deep · 44 km away
  26. 4.984 km SW of Atka, Alaska · 14738 days ago · 33 km deep · 83 km away
  27. 4.077 km SE of Adak, Alaska · 14737 days ago · 33 km deep · 54 km away
  28. 4.8106 km SE of Adak, Alaska · 14737 days ago · 33 km deep · 83 km away
  29. 4.389 km SW of Atka, Alaska · 14736 days ago · 33 km deep · 95 km away
  30. 4.9112 km ESE of Adak, Alaska · 14736 days ago · 33 km deep · 92 km away
  31. 4.898 km SSE of Adak, Alaska · 14736 days ago · 33 km deep · 78 km away
  32. 4.6113 km SW of Atka, Alaska · 14736 days ago · 33 km deep · 94 km away
  33. 4.886 km S of Adak, Alaska · 14736 days ago · 33 km deep · 67 km away
  34. 4.795 km S of Adak, Alaska · 14736 days ago · 33 km deep · 76 km away
  35. 3.875 km SE of Adak, Alaska · 14735 days ago · 33 km deep · 53 km away
  36. 4.668 km SSE of Adak, Alaska · 14735 days ago · 33 km deep · 46 km away
  37. 4.898 km SE of Adak, Alaska · 14735 days ago · 33 km deep · 76 km away
  38. 4.885 km E of Adak, Alaska · 14734 days ago · 33 km deep · 72 km away
  39. 4.573 km ESE of Adak, Alaska · 14734 days ago · 33 km deep · 53 km away
  40. 4.5104 km SE of Adak, Alaska · 14734 days ago · 33 km deep · 81 km away
  41. 4.989 km SSE of Adak, Alaska · 14733 days ago · 33 km deep · 66 km away
  42. 4.689 km SSE of Adak, Alaska · 14732 days ago · 33 km deep · 68 km away
  43. 5.091 km SW of Atka, Alaska · 14731 days ago · 33 km deep · 82 km away
  44. 4.892 km SSE of Adak, Alaska · 14731 days ago · 33 km deep · 70 km away
  45. 4.763 km SSE of Adak, Alaska · 14730 days ago · 33 km deep · 41 km away
  46. 4.281 km SE of Adak, Alaska · 14729 days ago · 33 km deep · 58 km away
  47. 4.881 km SSE of Adak, Alaska · 14728 days ago · 33 km deep · 58 km away
  48. 4.992 km ESE of Adak, Alaska · 14726 days ago · 33 km deep · 75 km away
  49. 4.8113 km SE of Adak, Alaska · 14726 days ago · 33 km deep · 91 km away
  50. 4.386 km SE of Adak, Alaska · 14724 days ago · 33 km deep · 63 km away
  51. 4.247 km ENE of Adak, Alaska · 14723 days ago · 33 km deep · 51 km away
  52. 4.181 km SSE of Adak, Alaska · 14723 days ago · 33 km deep · 60 km away
  53. 5.1106 km SE of Adak, Alaska · 14719 days ago · 33 km deep · 85 km away
  54. 4.379 km SSE of Adak, Alaska · 14715 days ago · 33 km deep · 56 km away
  55. 4.577 km SE of Adak, Alaska · 14715 days ago · 33 km deep · 54 km away
  56. 4.682 km SE of Adak, Alaska · 14714 days ago · 33 km deep · 60 km away
  57. 4.478 km NNE of Adak, Alaska · 14713 days ago · 33 km deep · 93 km away
  58. 4.493 km ESE of Adak, Alaska · 14709 days ago · 33 km deep · 75 km away
  59. 4.5104 km SW of Atka, Alaska · 14708 days ago · 33 km deep · 90 km away
  60. 6.557 km S of Adak, Alaska · 14707 days ago · 27 km deep · 42 km away

The first 60 of 87.

Before

  1. 5.387 km SSE of Adak, Alaska · 14745 days ago · 33 km deep · 65 km away
  2. 4.481 km SW of Atka, Alaska · 14745 days ago · 33 km deep · 93 km away
  3. 4.6104 km SE of Adak, Alaska · 14745 days ago · 33 km deep · 83 km away
  4. 4.885 km S of Adak, Alaska · 14745 days ago · 33 km deep · 68 km away
  5. 4.970 km SE of Adak, Alaska · 14746 days ago · 33 km deep · 48 km away
  6. 5.168 km WSW of Atka, Alaska · 14746 days ago · 33 km deep · 95 km away
  7. 4.878 km SE of Adak, Alaska · 14746 days ago · 33 km deep · 55 km away
  8. 4.383 km SSE of Adak, Alaska · 14746 days ago · 33 km deep · 61 km away
  9. 4.099 km S of Adak, Alaska · 14746 days ago · 33 km deep · 80 km away
  10. 4.4110 km ESE of Adak, Alaska · 14746 days ago · 33 km deep · 89 km away
  11. 5.0111 km SE of Adak, Alaska · 14746 days ago · 33 km deep · 89 km away
  12. 5.276 km SSE of Adak, Alaska · 14746 days ago · 33 km deep · 54 km away
  13. 5.097 km SSE of Adak, Alaska · 14746 days ago · 33 km deep · 76 km away
  14. 4.889 km SSE of Adak, Alaska · 14747 days ago · 33 km deep · 68 km away
  15. 4.493 km SSE of Adak, Alaska · 14747 days ago · 33 km deep · 72 km away
  16. 5.158 km SSE of Adak, Alaska · 14747 days ago · 33 km deep · 35 km away
  17. 4.883 km SSE of Adak, Alaska · 14747 days ago · 33 km deep · 61 km away
  18. 4.587 km SE of Adak, Alaska · 14747 days ago · 33 km deep · 64 km away
  19. 4.559 km ESE of Adak, Alaska · 14747 days ago · 33 km deep · 41 km away
  20. 3.976 km SW of Atka, Alaska · 14747 days ago · 33 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002twd. Read Wed, Sep 23, 2026, 5:01 AM UTC.