Alaska earthquakes

M3.0 earthquake 87 km WSW of Adak, Alaska

A magnitude 3.0 earthquake struck 87 km WSW of Adak, Alaska on Sun, Aug 14, 2016, 11:56 AM HADT (20:56 UTC), 22 km (14 mi) below the surface.

A larger quake followed: M4.4 110 km SW 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
3.0 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-08-14 20:56:58 UTC
Depth
22.1 km (13.7 mi), shallow
Epicenter
51.469° N, 177.724° 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
3.0ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · 28 stations
3.0ML, 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 5.3 km horizontally, 8.1 km in depth
Stations used
28

Nearby

Within 100 km, magnitude 1.5 and up: 129 in the 60 days after this one and 79 in the 30 days before it.

After

  1. 1.5136 km WSW of Adak, Alaska · 3702 days ago · 37 km deep · 54 km away
  2. 1.860 km SW of Adak, Alaska · 3702 days ago · 42 km deep · 41 km away
  3. 2.0Andreanof Islands, Aleutian Islands, Alaska · 3702 days ago · 55 km deep · 67 km away
  4. 1.848 km SSE of Adak, Alaska · 3702 days ago · 22 km deep · 87 km away
  5. 1.635 km SSW of Adak, Alaska · 3701 days ago · 58 km deep · 59 km away
  6. 1.640 km SSW of Adak, Alaska · 3701 days ago · 56 km deep · 60 km away
  7. 1.9149 km WSW of Adak, Alaska · 3701 days ago · 63 km deep · 63 km away
  8. 1.8114 km WSW of Adak, Alaska · 3700 days ago · 74 km deep · 38 km away
  9. 2.3135 km WSW of Adak, Alaska · 3700 days ago · 65 km deep · 51 km away
  10. 2.1144 km WSW of Adak, Alaska · 3697 days ago · 45 km deep · 60 km away
  11. 2.7179 km WSW of Adak, Alaska · 3697 days ago · 26 km deep · 92 km away
  12. 1.658 km WSW of Adak, Alaska · 3697 days ago · 68 km deep · 31 km away
  13. 1.7126 km WSW of Adak, Alaska · 3696 days ago · 24 km deep · 43 km away
  14. 2.0163 km WSW of Adak, Alaska · 3695 days ago · 23 km deep · 79 km away
  15. 2.2183 km WSW of Adak, Alaska · 3695 days ago · 20 km deep · 98 km away
  16. 2.1177 km WSW of Adak, Alaska · 3695 days ago · 24 km deep · 95 km away
  17. 1.742 km SSE of Adak, Alaska · 3695 days ago · 37 km deep · 95 km away
  18. 1.624 km SSW of Adak, Alaska · 3694 days ago · 21 km deep · 66 km away
  19. 1.747 km SSW of Adak, Alaska · 3693 days ago · 36 km deep · 52 km away
  20. 2.2140 km SW of Adak, Alaska · 3693 days ago · 26 km deep · 53 km away
  21. 1.635 km S of Adak, Alaska · 3692 days ago · 38 km deep · 77 km away
  22. 2.3154 km WSW of Adak, Alaska · 3691 days ago · 17 km deep · 75 km away
  23. 1.884 km WSW of Adak, Alaska · 3690 days ago · 68 km deep · 18 km away
  24. 1.5154 km WSW of Adak, Alaska · 3690 days ago · 39 km deep · 71 km away
  25. 1.9107 km SW of Adak, Alaska · 3690 days ago · 49 km deep · 23 km away
  26. 3.040 km SSW of Adak, Alaska · 3689 days ago · 47 km deep · 65 km away
  27. 1.6129 km W of Adak, Alaska · 3689 days ago · 6 km deep · 59 km away
  28. 2.086 km WSW of Adak, Alaska · 3689 days ago · 84 km deep · 11 km away
  29. 1.8152 km WSW of Adak, Alaska · 3689 days ago · 9 km deep · 69 km away
  30. 1.736 km SSE of Adak, Alaska · 3688 days ago · 42 km deep · 91 km away
  31. 2.054 km SSE of Adak, Alaska · 3688 days ago · 21 km deep · 91 km away
  32. 1.8112 km WSW of Adak, Alaska · 3687 days ago · 18 km deep · 32 km away
  33. 1.7154 km W of Adak, Alaska · 3687 days ago · 25 km deep · 82 km away
  34. 2.075 km WSW of Adak, Alaska · 3687 days ago · 31 km deep · 13 km away
  35. 3.8118 km SW of Adak, Alaska · 3686 days ago · 27 km deep · 44 km away
  36. 2.0106 km SW of Adak, Alaska · 3686 days ago · 46 km deep · 21 km away
  37. 1.9122 km WSW of Adak, Alaska · 3685 days ago · 30 km deep · 35 km away
  38. 2.439 km SSE of Adak, Alaska · 3685 days ago · 32 km deep · 92 km away
  39. 1.7111 km SW of Adak, Alaska · 3685 days ago · 34 km deep · 27 km away
  40. 1.9159 km WSW of Adak, Alaska · 3685 days ago · 22 km deep · 75 km away
  41. 1.640 km W of Adak, Alaska · 3685 days ago · 69 km deep · 55 km away
  42. 1.8137 km WSW of Adak, Alaska · 3685 days ago · 77 km deep · 59 km away
  43. 1.9150 km WSW of Adak, Alaska · 3685 days ago · 14 km deep · 69 km away
  44. 1.5132 km W of Adak, Alaska · 3684 days ago · 14 km deep · 66 km away
  45. 2.0166 km W of Adak, Alaska · 3683 days ago · 98 km deep · 93 km away
  46. 2.7182 km WSW of Adak, Alaska · 3682 days ago · 28 km deep · 97 km away
  47. 2.1118 km WSW of Adak, Alaska · 3682 days ago · 44 km deep · 32 km away
  48. 1.752 km SSE of Adak, Alaska · 3682 days ago · 24 km deep · 98 km away
  49. 2.2108 km WSW of Adak, Alaska · 3680 days ago · 12 km deep · 30 km away
  50. 1.7118 km WSW of Adak, Alaska · 3680 days ago · 27 km deep · 33 km away
  51. 2.4128 km W of Adak, Alaska · 3680 days ago · 13 km deep · 59 km away
  52. 1.9129 km W of Adak, Alaska · 3678 days ago · 147 km deep · 69 km away
  53. 1.623 km SSE of Adak, Alaska · 3677 days ago · 62 km deep · 85 km away
  54. 2.432 km SSW of Adak, Alaska · 3675 days ago · 52 km deep · 60 km away
  55. 3.0166 km SW of Adak, Alaska · 3675 days ago · 33 km deep · 78 km away
  56. 3.4Andreanof Islands, Aleutian Islands, Alaska · 3675 days ago · 30 km deep · 94 km away
  57. 1.8117 km WSW of Adak, Alaska · 3674 days ago · 13 km deep · 37 km away
  58. 1.972 km WSW of Adak, Alaska · 3674 days ago · 71 km deep · 24 km away
  59. 1.6107 km WSW of Adak, Alaska · 3674 days ago · 31 km deep · 26 km away
  60. 1.720 km SW of Adak, Alaska · 3673 days ago · 66 km deep · 68 km away

The first 60 of 129.

Before

  1. 1.5120 km WSW of Adak, Alaska · 3703 days ago · 45 km deep · 40 km away
  2. 1.5113 km WSW of Adak, Alaska · 3703 days ago · 9 km deep · 33 km away
  3. 1.8130 km WSW of Adak, Alaska · 3703 days ago · 8 km deep · 56 km away
  4. 1.774 km SW of Adak, Alaska · 3703 days ago · 41 km deep · 15 km away
  5. 1.873 km WSW of Adak, Alaska · 3703 days ago · 70 km deep · 29 km away
  6. 2.241 km SE of Adak, Alaska · 3705 days ago · 37 km deep · 100 km away
  7. 2.625 km SW of Adak, Alaska · 3705 days ago · 55 km deep · 63 km away
  8. 2.352 km SSE of Adak, Alaska · 3705 days ago · 26 km deep · 90 km away
  9. 1.876 km SW of Adak, Alaska · 3706 days ago · 23 km deep · 15 km away
  10. 1.9112 km WSW of Adak, Alaska · 3706 days ago · 12 km deep · 28 km away
  11. 1.5133 km WSW of Adak, Alaska · 3706 days ago · 28 km deep · 48 km away
  12. 1.693 km WSW of Adak, Alaska · 3706 days ago · 38 km deep · 6 km away
  13. 2.957 km SW of Adak, Alaska · 3707 days ago · 31 km deep · 40 km away
  14. 1.726 km W of Adak, Alaska · 3707 days ago · 13 km deep · 63 km away
  15. 2.0111 km WSW of Adak, Alaska · 3707 days ago · 13 km deep · 27 km away
  16. 2.576 km SW of Adak, Alaska · 3707 days ago · 38 km deep · 13 km away
  17. 1.8121 km WSW of Adak, Alaska · 3708 days ago · 13 km deep · 37 km away
  18. 1.561 km SW of Adak, Alaska · 3709 days ago · 32 km deep · 28 km away
  19. 2.039 km WSW of Adak, Alaska · 3709 days ago · 69 km deep · 49 km away
  20. 1.6119 km SW of Adak, Alaska · 3709 days ago · 36 km deep · 33 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20006v5n (also filed as ak016afr8ks4). Read Sun, Oct 4, 2026, 9:11 AM UTC.