Alaska earthquakes

M4.5 earthquake 123 km S of Atka, Alaska

A magnitude 4.5 earthquake struck 123 km S of Atka, Alaska on Thu, Jun 5, 1986, 5:22 AM HADT (14:22 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.4 125 km SE 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, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1986-06-05 14:22:04 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.093° N, 174.341° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

The USGS’s account of the effects of this earthquake.

Felt on Adak.

From the USGS event page for usp0002utn. U.S. Geological Survey text and figures are in the public domain.

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: 30 in the 60 days after this one and 158 in the 30 days before it.

After

  1. 4.765 km S of Atka, Alaska · 14728 days ago · 33 km deep · 57 km away
  2. 5.1106 km SE of Adak, Alaska · 14728 days ago · 33 km deep · 76 km away
  3. 5.377 km S of Atka, Alaska · 14728 days ago · 33 km deep · 46 km away
  4. 4.461 km SW of Atka, Alaska · 14727 days ago · 33 km deep · 78 km away
  5. 4.885 km SSW of Atka, Alaska · 14726 days ago · 33 km deep · 63 km away
  6. 4.871 km SW of Atka, Alaska · 14725 days ago · 33 km deep · 73 km away
  7. 4.397 km SSW of Atka, Alaska · 14718 days ago · 33 km deep · 45 km away
  8. 4.493 km ESE of Adak, Alaska · 14718 days ago · 33 km deep · 90 km away
  9. 4.5104 km SW of Atka, Alaska · 14716 days ago · 33 km deep · 73 km away
  10. 4.980 km SSE of Atka, Alaska · 14715 days ago · 33 km deep · 58 km away
  11. 4.7100 km SSW of Atka, Alaska · 14712 days ago · 33 km deep · 46 km away
  12. 5.4125 km SE of Adak, Alaska · 14711 days ago · 33 km deep · 60 km away
  13. 4.4135 km SE of Adak, Alaska · 14711 days ago · 33 km deep · 57 km away
  14. 4.887 km SW of Atka, Alaska · 14711 days ago · 33 km deep · 89 km away
  15. 4.2118 km SSW of Atka, Alaska · 14711 days ago · 33 km deep · 60 km away
  16. 4.4109 km SW of Atka, Alaska · 14711 days ago · 33 km deep · 71 km away
  17. 4.6101 km SE of Adak, Alaska · 14711 days ago · 33 km deep · 91 km away
  18. 4.383 km SW of Atka, Alaska · 14710 days ago · 33 km deep · 88 km away
  19. 4.5Andreanof Islands, Aleutian Islands, Alaska · 14694 days ago · 33 km deep · 66 km away
  20. 4.888 km SSW of Atka, Alaska · 14686 days ago · 33 km deep · 42 km away
  21. 4.0101 km SW of Atka, Alaska · 14684 days ago · 33 km deep · 73 km away
  22. 4.993 km SW of Atka, Alaska · 14679 days ago · 33 km deep · 90 km away
  23. 5.4Andreanof Islands, Aleutian Islands, Alaska · 14675 days ago · 33 km deep · 59 km away
  24. 4.785 km SW of Atka, Alaska · 14675 days ago · 33 km deep · 94 km away
  25. 5.492 km S of Atka, Alaska · 14671 days ago · 33 km deep · 31 km away
  26. 4.889 km S of Atka, Alaska · 14671 days ago · 33 km deep · 34 km away
  27. 4.986 km S of Atka, Alaska · 14671 days ago · 33 km deep · 37 km away
  28. 4.571 km S of Atka, Alaska · 14671 days ago · 33 km deep · 53 km away
  29. 4.795 km SSW of Atka, Alaska · 14670 days ago · 33 km deep · 45 km away
  30. 5.087 km S of Atka, Alaska · 14669 days ago · 33 km deep · 37 km away

Before

  1. 4.988 km SSW of Atka, Alaska · 14729 days ago · 33 km deep · 45 km away
  2. 5.038 km SW of Atka, Alaska · 14730 days ago · 33 km deep · 96 km away
  3. 5.493 km SSW of Atka, Alaska · 14730 days ago · 33 km deep · 43 km away
  4. 5.299 km SSW of Atka, Alaska · 14730 days ago · 33 km deep · 35 km away
  5. 4.4105 km SSW of Atka, Alaska · 14731 days ago · 33 km deep · 60 km away
  6. 4.575 km SSW of Atka, Alaska · 14732 days ago · 33 km deep · 56 km away
  7. 4.8113 km SE of Adak, Alaska · 14735 days ago · 33 km deep · 70 km away
  8. 4.992 km ESE of Adak, Alaska · 14735 days ago · 33 km deep · 94 km away
  9. 4.962 km S of Atka, Alaska · 14737 days ago · 33 km deep · 60 km away
  10. 4.3170 km SSW of Atka, Alaska · 14737 days ago · 33 km deep · 51 km away
  11. 4.8186 km S of Atka, Alaska · 14738 days ago · 33 km deep · 64 km away
  12. 4.752 km SSW of Atka, Alaska · 14738 days ago · 33 km deep · 78 km away
  13. 4.896 km SSW of Atka, Alaska · 14739 days ago · 33 km deep · 48 km away
  14. 5.091 km SW of Atka, Alaska · 14740 days ago · 33 km deep · 90 km away
  15. 4.655 km SW of Atka, Alaska · 14740 days ago · 33 km deep · 83 km away
  16. 4.5104 km SE of Adak, Alaska · 14742 days ago · 33 km deep · 87 km away
  17. 4.8201 km SE of Adak, Alaska · 14742 days ago · 33 km deep · 90 km away
  18. 4.898 km SE of Adak, Alaska · 14743 days ago · 33 km deep · 85 km away
  19. 4.6113 km SW of Atka, Alaska · 14744 days ago · 33 km deep · 67 km away
  20. 4.0110 km SSW of Atka, Alaska · 14744 days ago · 33 km deep · 55 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002utn. Read Thu, Oct 1, 2026, 12:21 PM UTC.