Alaska earthquakes

M4.8 earthquake 53 km S of Adak, Alaska

A magnitude 4.8 earthquake struck 53 km S of Adak, Alaska on Sun, Jun 29, 1986, 4:21 PM HADT (01:21 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.9 79 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
4.8 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1986-06-30 01:21:26 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.391° N, 176.683° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

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

Felt (III) on Adak.

From the USGS event page for usp0002vjt. 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 1.8 and up: 33 in the 60 days after this one and 18 in the 30 days before it.

After

  1. 4.558 km S of Adak, Alaska · 14703 days ago · 33 km deep · 4 km away
  2. 4.455 km SE of Adak, Alaska · 14703 days ago · 33 km deep · 55 km away
  3. 5.475 km SSE of Adak, Alaska · 14703 days ago · 33 km deep · 39 km away
  4. 4.236 km S of Adak, Alaska · 14703 days ago · 33 km deep · 18 km away
  5. 4.093 km SSE of Adak, Alaska · 14703 days ago · 33 km deep · 51 km away
  6. 4.291 km SSE of Adak, Alaska · 14703 days ago · 33 km deep · 49 km away
  7. 4.484 km SSE of Adak, Alaska · 14703 days ago · 33 km deep · 44 km away
  8. 4.761 km SW of Adak, Alaska · 14703 days ago · 33 km deep · 31 km away
  9. 5.063 km SE of Adak, Alaska · 14700 days ago · 33 km deep · 53 km away
  10. 4.975 km ESE of Adak, Alaska · 14699 days ago · 33 km deep · 68 km away
  11. 4.569 km SE of Adak, Alaska · 14696 days ago · 33 km deep · 46 km away
  12. 5.527 km E of Adak, Alaska · 14694 days ago · 50 km deep · 65 km away
  13. 5.026 km SW of Adak, Alaska · 14694 days ago · 57 km deep · 35 km away
  14. 4.879 km SE of Adak, Alaska · 14682 days ago · 33 km deep · 68 km away
  15. 5.257 km SSE of Adak, Alaska · 14681 days ago · 33 km deep · 34 km away
  16. 4.983 km SSE of Adak, Alaska · 14680 days ago · 33 km deep · 43 km away
  17. 4.952 km S of Adak, Alaska · 14680 days ago · 33 km deep · 1 km away
  18. 5.876 km SSE of Adak, Alaska · 14678 days ago · 33 km deep · 39 km away
  19. 5.683 km SSE of Adak, Alaska · 14678 days ago · 33 km deep · 49 km away
  20. 4.669 km ESE of Adak, Alaska · 14678 days ago · 33 km deep · 82 km away
  21. 4.793 km SSE of Adak, Alaska · 14678 days ago · 33 km deep · 59 km away
  22. 4.497 km SSE of Adak, Alaska · 14676 days ago · 33 km deep · 54 km away
  23. 4.844 km E of Adak, Alaska · 14675 days ago · 33 km deep · 72 km away
  24. 4.883 km SSE of Adak, Alaska · 14671 days ago · 33 km deep · 42 km away
  25. 4.986 km SSE of Adak, Alaska · 14671 days ago · 33 km deep · 46 km away
  26. 4.354 km SSE of Adak, Alaska · 14671 days ago · 33 km deep · 29 km away
  27. 5.076 km SE of Adak, Alaska · 14670 days ago · 33 km deep · 49 km away
  28. 5.979 km S of Adak, Alaska · 14669 days ago · 33 km deep · 27 km away
  29. 4.784 km S of Adak, Alaska · 14669 days ago · 33 km deep · 31 km away
  30. 4.987 km S of Adak, Alaska · 14669 days ago · 33 km deep · 33 km away
  31. 4.780 km S of Adak, Alaska · 14669 days ago · 33 km deep · 27 km away
  32. 4.237 km E of Adak, Alaska · 14654 days ago · 33 km deep · 64 km away
  33. 4.364 km ESE of Adak, Alaska · 14651 days ago · 33 km deep · 73 km away

Before

  1. 4.359 km SW of Adak, Alaska · 14710 days ago · 33 km deep · 36 km away
  2. 4.6101 km SE of Adak, Alaska · 14711 days ago · 33 km deep · 76 km away
  3. 4.263 km SW of Adak, Alaska · 14711 days ago · 33 km deep · 41 km away
  4. 4.576 km SE of Adak, Alaska · 14712 days ago · 33 km deep · 56 km away
  5. 4.536 km SW of Adak, Alaska · 14715 days ago · 33 km deep · 31 km away
  6. 4.271 km SE of Adak, Alaska · 14715 days ago · 33 km deep · 51 km away
  7. 4.883 km SSE of Adak, Alaska · 14715 days ago · 33 km deep · 44 km away
  8. 4.589 km SSE of Adak, Alaska · 14715 days ago · 33 km deep · 53 km away
  9. 6.557 km S of Adak, Alaska · 14715 days ago · 27 km deep · 4 km away
  10. 4.493 km ESE of Adak, Alaska · 14718 days ago · 33 km deep · 94 km away
  11. 4.682 km SE of Adak, Alaska · 14723 days ago · 33 km deep · 63 km away
  12. 4.577 km SE of Adak, Alaska · 14723 days ago · 33 km deep · 50 km away
  13. 4.379 km SSE of Adak, Alaska · 14723 days ago · 33 km deep · 49 km away
  14. 4.7107 km SSW of Adak, Alaska · 14725 days ago · 33 km deep · 66 km away
  15. 5.1106 km SE of Adak, Alaska · 14728 days ago · 33 km deep · 93 km away
  16. 4.181 km SSE of Adak, Alaska · 14731 days ago · 33 km deep · 39 km away
  17. 4.247 km ENE of Adak, Alaska · 14732 days ago · 33 km deep · 90 km away
  18. 4.386 km SE of Adak, Alaska · 14733 days ago · 33 km deep · 67 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002vjt. Read Thu, Oct 1, 2026, 2:18 PM UTC.