Alaska earthquakes

M3.6 earthquake 96 km SW of Atka, Alaska

A magnitude 3.6 earthquake struck 96 km SW of Atka, Alaska on Tue, Aug 16, 2016, 12:03 PM HADT (21:03 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M3.9 85 km S of Atka, 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
3.6 (mb, body-wave), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-08-16 21:03:28 UTC
Depth
35.3 km (21.9 mi), shallow
Epicenter
51.617° N, 175.245° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
3.6mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed · ±0.125 · 16 stations
3.5ML, local (Richter)Alaska Earthquake CenterPreliminary

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 5.5 km horizontally, 23.9 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
200°, poorly surrounded by stations
Stations used
44

Nearby

Within 100 km, magnitude 1.5 and up: 91 in the 60 days after this one and 70 in the 30 days before it.

After

  1. 1.740 km SSW of Atka, Alaska · 3700 days ago · 46 km deep · 65 km away
  2. 1.994 km S of Atka, Alaska · 3700 days ago · 26 km deep · 69 km away
  3. 3.049 km ESE of Adak, Alaska · 3699 days ago · 56 km deep · 54 km away
  4. 2.151 km S of Atka, Alaska · 3699 days ago · 11 km deep · 66 km away
  5. 1.787 km SW of Atka, Alaska · 3699 days ago · 26 km deep · 9 km away
  6. 3.4Andreanof Islands, Aleutian Islands, Alaska · 3699 days ago · 10 km deep · 91 km away
  7. 1.680 km E of Adak, Alaska · 3699 days ago · 61 km deep · 28 km away
  8. 2.991 km SE of Adak, Alaska · 3699 days ago · 38 km deep · 39 km away
  9. 1.640 km ESE of Adak, Alaska · 3698 days ago · 61 km deep · 60 km away
  10. 1.8107 km SW of Atka, Alaska · 3697 days ago · 48 km deep · 18 km away
  11. 2.536 km NE of Adak, Alaska · 3697 days ago · 144 km deep · 83 km away
  12. 1.926 km SSW of Atka, Alaska · 3697 days ago · 61 km deep · 75 km away
  13. 1.529 km WNW of Atka, Alaska · 3696 days ago · 14 km deep · 88 km away
  14. 1.742 km SSE of Adak, Alaska · 3696 days ago · 37 km deep · 77 km away
  15. 1.866 km SW of Atka, Alaska · 3695 days ago · 13 km deep · 32 km away
  16. 2.061 km SSW of Atka, Alaska · 3695 days ago · 16 km deep · 44 km away
  17. 2.146 km SSE of Atka, Alaska · 3693 days ago · 59 km deep · 89 km away
  18. 2.541 km SSW of Atka, Alaska · 3693 days ago · 177 km deep · 67 km away
  19. 2.366 km SW of Atka, Alaska · 3693 days ago · 47 km deep · 30 km away
  20. 2.547 km NE of Adak, Alaska · 3693 days ago · 225 km deep · 89 km away
  21. 2.757 km SSE of Atka, Alaska · 3693 days ago · 54 km deep · 86 km away
  22. 1.635 km S of Adak, Alaska · 3692 days ago · 38 km deep · 96 km away
  23. 2.281 km E of Adak, Alaska · 3691 days ago · 56 km deep · 24 km away
  24. 2.046 km NE of Adak, Alaska · 3691 days ago · 137 km deep · 87 km away
  25. 1.790 km S of Atka, Alaska · 3691 days ago · 38 km deep · 87 km away
  26. 1.760 km SSW of Atka, Alaska · 3690 days ago · 26 km deep · 47 km away
  27. 1.689 km SW of Atka, Alaska · 3689 days ago · 25 km deep · 7 km away
  28. 1.736 km SSE of Adak, Alaska · 3689 days ago · 42 km deep · 82 km away
  29. 2.054 km SSE of Adak, Alaska · 3688 days ago · 21 km deep · 85 km away
  30. 2.013 km ENE of Adak, Alaska · 3687 days ago · 99 km deep · 91 km away
  31. 2.439 km SSE of Adak, Alaska · 3686 days ago · 32 km deep · 81 km away
  32. 2.448 km SW of Atka, Alaska · 3685 days ago · 43 km deep · 49 km away
  33. 2.139 km WSW of Atka, Alaska · 3684 days ago · 72 km deep · 57 km away
  34. 1.865 km SE of Adak, Alaska · 3684 days ago · 30 km deep · 53 km away
  35. 3.985 km S of Atka, Alaska · 3684 days ago · 46 km deep · 91 km away
  36. 3.188 km SE of Adak, Alaska · 3683 days ago · 31 km deep · 30 km away
  37. 2.786 km S of Atka, Alaska · 3683 days ago · 26 km deep · 83 km away
  38. 1.752 km SSE of Adak, Alaska · 3682 days ago · 24 km deep · 76 km away
  39. 2.067 km S of Atka, Alaska · 3682 days ago · 21 km deep · 67 km away
  40. 1.816 km SSW of Atka, Alaska · 3678 days ago · 65 km deep · 81 km away
  41. 2.27 km SSW of Atka, Alaska · 3678 days ago · 162 km deep · 90 km away
  42. 1.623 km SSE of Adak, Alaska · 3678 days ago · 62 km deep · 90 km away
  43. 1.860 km SE of Adak, Alaska · 3678 days ago · 3 km deep · 65 km away
  44. 2.052 km SSE of Adak, Alaska · 3678 days ago · 26 km deep · 70 km away
  45. 2.198 km SE of Adak, Alaska · 3677 days ago · 49 km deep · 34 km away
  46. 2.453 km SE of Adak, Alaska · 3677 days ago · 45 km deep · 57 km away
  47. 2.121 km SW of Atka, Alaska · 3674 days ago · 160 km deep · 75 km away
  48. 2.190 km S of Atka, Alaska · 3674 days ago · 4 km deep · 64 km away
  49. 2.491 km S of Atka, Alaska · 3674 days ago · 7 km deep · 66 km away
  50. 2.081 km SSW of Atka, Alaska · 3674 days ago · 3 km deep · 56 km away
  51. 1.653 km SE of Adak, Alaska · 3673 days ago · 2 km deep · 62 km away
  52. 1.760 km SSE of Adak, Alaska · 3672 days ago · 16 km deep · 68 km away
  53. 2.971 km WSW of Atka, Alaska · 3672 days ago · 71 km deep · 49 km away
  54. 2.390 km S of Atka, Alaska · 3671 days ago · 63 km deep · 72 km away
  55. 3.045 km S of Atka, Alaska · 3670 days ago · 59 km deep · 78 km away
  56. 2.075 km SE of Adak, Alaska · 3669 days ago · 23 km deep · 38 km away
  57. 3.271 km W of Atka, Alaska · 3669 days ago · 220 km deep · 75 km away
  58. 2.965 km NE of Adak, Alaska · 3669 days ago · 238 km deep · 85 km away
  59. 2.351 km NE of Adak, Alaska · 3668 days ago · 154 km deep · 85 km away
  60. 2.044 km SSW of Atka, Alaska · 3665 days ago · 43 km deep · 65 km away

The first 60 of 91.

Before

  1. 3.076 km SE of Adak, Alaska · 3702 days ago · 44 km deep · 39 km away
  2. 1.868 km SE of Adak, Alaska · 3702 days ago · 54 km deep · 41 km away
  3. 1.775 km ESE of Adak, Alaska · 3702 days ago · 58 km deep · 26 km away
  4. 1.848 km SSE of Adak, Alaska · 3702 days ago · 22 km deep · 87 km away
  5. 1.930 km SW of Atka, Alaska · 3702 days ago · 26 km deep · 67 km away
  6. 1.875 km E of Adak, Alaska · 3703 days ago · 69 km deep · 42 km away
  7. 1.923 km WSW of Atka, Alaska · 3703 days ago · 41 km deep · 73 km away
  8. 1.660 km SSE of Adak, Alaska · 3704 days ago · 26 km deep · 68 km away
  9. 1.942 km S of Atka, Alaska · 3704 days ago · 1 km deep · 69 km away
  10. 3.970 km S of Atka, Alaska · 3704 days ago · 10 km deep · 81 km away
  11. 2.241 km SE of Adak, Alaska · 3705 days ago · 37 km deep · 73 km away
  12. 2.352 km SSE of Adak, Alaska · 3706 days ago · 26 km deep · 85 km away
  13. 3.889 km S of Atka, Alaska · 3706 days ago · 37 km deep · 76 km away
  14. 1.983 km SE of Adak, Alaska · 3706 days ago · 15 km deep · 41 km away
  15. 2.321 km SSE of Atka, Alaska · 3707 days ago · 106 km deep · 89 km away
  16. 2.267 km SW of Atka, Alaska · 3707 days ago · 31 km deep · 32 km away
  17. 2.126 km WSW of Atka, Alaska · 3708 days ago · 198 km deep · 71 km away
  18. 2.078 km ESE of Adak, Alaska · 3709 days ago · 73 km deep · 22 km away
  19. 1.657 km ESE of Adak, Alaska · 3709 days ago · 55 km deep · 42 km away
  20. 2.6Andreanof Islands, Aleutian Islands, Alaska · 3709 days ago · 98 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10006f5n (also filed as ak016aj2la34). Read Mon, Oct 5, 2026, 2:43 AM UTC.