Alaska earthquakes

M4.9 earthquake 93 km SW of Atka, Alaska

A magnitude 4.9 earthquake struck 93 km SW of Atka, Alaska on Thu, Jul 24, 1986, 5:03 AM HADT (14:03 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.8 76 km SSE 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
4.9 (mb), light
Local time
UTC
1986-07-24 14:03:26 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.669° N, 175.254° 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 1.9 and up: 25 in the 60 days after this one and 19 in the 30 days before it.

After

  1. 5.876 km SSE of Adak, Alaska · 14676 days ago · 33 km deep · 79 km away
  2. 5.683 km SSE of Adak, Alaska · 14676 days ago · 33 km deep · 73 km away
  3. 4.669 km ESE of Adak, Alaska · 14675 days ago · 33 km deep · 29 km away
  4. 4.793 km SSE of Adak, Alaska · 14675 days ago · 33 km deep · 73 km away
  5. 4.497 km SSE of Adak, Alaska · 14674 days ago · 33 km deep · 92 km away
  6. 5.4Andreanof Islands, Aleutian Islands, Alaska · 14673 days ago · 33 km deep · 80 km away
  7. 4.844 km E of Adak, Alaska · 14673 days ago · 33 km deep · 56 km away
  8. 5.588 km WSW of Atka, Alaska · 14672 days ago · 33 km deep · 12 km away
  9. 4.785 km SW of Atka, Alaska · 14672 days ago · 33 km deep · 9 km away
  10. 4.4Andreanof Islands, Aleutian Islands, Alaska · 14672 days ago · 33 km deep · 28 km away
  11. 4.883 km SSE of Adak, Alaska · 14668 days ago · 33 km deep · 86 km away
  12. 4.986 km SSE of Adak, Alaska · 14668 days ago · 33 km deep · 83 km away
  13. 5.492 km S of Atka, Alaska · 14668 days ago · 33 km deep · 75 km away
  14. 4.889 km S of Atka, Alaska · 14668 days ago · 33 km deep · 76 km away
  15. 4.986 km S of Atka, Alaska · 14668 days ago · 33 km deep · 77 km away
  16. 4.354 km SSE of Adak, Alaska · 14668 days ago · 33 km deep · 74 km away
  17. 4.571 km S of Atka, Alaska · 14668 days ago · 33 km deep · 77 km away
  18. 5.076 km SE of Adak, Alaska · 14668 days ago · 33 km deep · 65 km away
  19. 4.795 km SSW of Atka, Alaska · 14667 days ago · 33 km deep · 45 km away
  20. 5.087 km S of Atka, Alaska · 14667 days ago · 33 km deep · 81 km away
  21. 4.3Andreanof Islands, Aleutian Islands, Alaska · 14660 days ago · 33 km deep · 52 km away
  22. 4.888 km SW of Atka, Alaska · 14655 days ago · 33 km deep · 5 km away
  23. 4.237 km E of Adak, Alaska · 14651 days ago · 33 km deep · 61 km away
  24. 4.364 km ESE of Adak, Alaska · 14648 days ago · 33 km deep · 34 km away
  25. 4.488 km SW of Atka, Alaska · 14637 days ago · 33 km deep · 6 km away

Before

  1. 4.983 km SSE of Adak, Alaska · 14678 days ago · 33 km deep · 82 km away
  2. 5.257 km SSE of Adak, Alaska · 14678 days ago · 33 km deep · 70 km away
  3. 4.879 km SE of Adak, Alaska · 14679 days ago · 33 km deep · 40 km away
  4. 4.631 km SW of Atka, Alaska · 14680 days ago · 33 km deep · 61 km away
  5. 4.0101 km SW of Atka, Alaska · 14681 days ago · 33 km deep · 20 km away
  6. 4.888 km SSW of Atka, Alaska · 14683 days ago · 33 km deep · 53 km away
  7. 5.527 km E of Adak, Alaska · 14691 days ago · 50 km deep · 73 km away
  8. 4.5Andreanof Islands, Aleutian Islands, Alaska · 14692 days ago · 33 km deep · 31 km away
  9. 4.569 km SE of Adak, Alaska · 14694 days ago · 33 km deep · 62 km away
  10. 4.975 km ESE of Adak, Alaska · 14697 days ago · 33 km deep · 37 km away
  11. 5.063 km SE of Adak, Alaska · 14697 days ago · 33 km deep · 51 km away
  12. 4.484 km SSE of Adak, Alaska · 14701 days ago · 33 km deep · 83 km away
  13. 4.291 km SSE of Adak, Alaska · 14701 days ago · 33 km deep · 86 km away
  14. 4.093 km SSE of Adak, Alaska · 14701 days ago · 33 km deep · 87 km away
  15. 4.236 km S of Adak, Alaska · 14701 days ago · 33 km deep · 94 km away
  16. 5.475 km SSE of Adak, Alaska · 14701 days ago · 33 km deep · 78 km away
  17. 4.455 km SE of Adak, Alaska · 14701 days ago · 33 km deep · 50 km away
  18. 4.743 km W of Atka, Alaska · 14702 days ago · 33 km deep · 71 km away
  19. 5.446 km WNW of Atka, Alaska · 14702 days ago · 33 km deep · 79 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002wfe. Read Mon, Sep 28, 2026, 9:13 PM UTC.