Alaska earthquakes

M2.6 earthquake 252 km WSW of Adak, Alaska

A magnitude 2.6 earthquake struck 252 km WSW of Adak, Alaska on Sat, Aug 27, 2016, 2:40 AM GMT+12 (14:40 UTC), 51 km (31 mi) below the surface.

A larger quake followed: M4.2 250 km W 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
2.6 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-08-26 14:40:32 UTC
Depth
50.6 km (31.4 mi), shallow
Epicenter
51.360° N, 179.811° E
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
2.6ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · 24 stations
2.6ML, 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 4.9 km horizontally, 6.7 km in depth
Depth from
From location
Station coverage gap
197°, poorly surrounded by stations
Stations used
25

Nearby

Within 100 km, magnitude 1.5 and up: 88 in the 60 days after this one and 69 in the 30 days before it.

After

  1. 2.3154 km WSW of Adak, Alaska · 3691 days ago · 17 km deep · 98 km away
  2. 1.6225 km W of Adak, Alaska · 3690 days ago · 66 km deep · 31 km away
  3. 2.0194 km WSW of Adak, Alaska · 3690 days ago · 26 km deep · 72 km away
  4. 2.1237 km WSW of Adak, Alaska · 3689 days ago · 20 km deep · 17 km away
  5. 2.1Rat Islands, Aleutian Islands, Alaska · 3688 days ago · 56 km deep · 84 km away
  6. 2.5253 km W of Adak, Alaska · 3687 days ago · 95 km deep · 45 km away
  7. 1.7154 km W of Adak, Alaska · 3687 days ago · 25 km deep · 100 km away
  8. 1.9Rat Islands, Aleutian Islands, Alaska · 3687 days ago · 26 km deep · 68 km away
  9. 2.1Rat Islands, Aleutian Islands, Alaska · 3687 days ago · 84 km deep · 90 km away
  10. 2.5289 km WSW of Adak, Alaska · 3686 days ago · 23 km deep · 39 km away
  11. 2.4290 km WSW of Adak, Alaska · 3686 days ago · 22 km deep · 38 km away
  12. 2.4230 km W of Adak, Alaska · 3686 days ago · 67 km deep · 28 km away
  13. 2.1Rat Islands, Aleutian Islands, Alaska · 3686 days ago · 32 km deep · 70 km away
  14. 1.9159 km WSW of Adak, Alaska · 3685 days ago · 22 km deep · 98 km away
  15. 1.9290 km WSW of Adak, Alaska · 3685 days ago · 45 km deep · 40 km away
  16. 2.2284 km W of Adak, Alaska · 3685 days ago · 13 km deep · 46 km away
  17. 2.1287 km W of Adak, Alaska · 3685 days ago · 6 km deep · 49 km away
  18. 1.8283 km W of Adak, Alaska · 3685 days ago · 8 km deep · 47 km away
  19. 3.7188 km WSW of Adak, Alaska · 3684 days ago · 22 km deep · 68 km away
  20. 1.9172 km W of Adak, Alaska · 3683 days ago · 13 km deep · 86 km away
  21. 2.0166 km W of Adak, Alaska · 3682 days ago · 98 km deep · 88 km away
  22. 2.4221 km WSW of Adak, Alaska · 3682 days ago · 51 km deep · 32 km away
  23. 2.7182 km WSW of Adak, Alaska · 3682 days ago · 28 km deep · 77 km away
  24. 2.0219 km WSW of Adak, Alaska · 3682 days ago · 36 km deep · 38 km away
  25. 2.7258 km W of Adak, Alaska · 3682 days ago · 183 km deep · 76 km away
  26. 2.4205 km W of Adak, Alaska · 3680 days ago · 94 km deep · 52 km away
  27. 2.6183 km WSW of Adak, Alaska · 3679 days ago · 20 km deep · 70 km away
  28. 1.9268 km WSW of Adak, Alaska · 3679 days ago · 63 km deep · 16 km away
  29. 2.8Rat Islands, Aleutian Islands, Alaska · 3679 days ago · 17 km deep · 60 km away
  30. 2.1242 km WSW of Adak, Alaska · 3678 days ago · 13 km deep · 49 km away
  31. 2.4209 km WSW of Adak, Alaska · 3678 days ago · 14 km deep · 61 km away
  32. 2.6Rat Islands, Aleutian Islands, Alaska · 3678 days ago · 71 km deep · 85 km away
  33. 3.4Andreanof Islands, Aleutian Islands, Alaska · 3675 days ago · 30 km deep · 83 km away
  34. 2.2177 km WSW of Adak, Alaska · 3674 days ago · 71 km deep · 75 km away
  35. 2.3264 km WSW of Adak, Alaska · 3673 days ago · 14 km deep · 26 km away
  36. 2.6249 km W of Adak, Alaska · 3672 days ago · 101 km deep · 48 km away
  37. 2.7Rat Islands, Aleutian Islands, Alaska · 3671 days ago · 45 km deep · 78 km away
  38. 2.1181 km W of Adak, Alaska · 3671 days ago · 13 km deep · 78 km away
  39. 2.4Rat Islands, Aleutian Islands, Alaska · 3670 days ago · 30 km deep · 56 km away
  40. 2.5194 km WSW of Adak, Alaska · 3670 days ago · 18 km deep · 78 km away
  41. 2.3173 km W of Adak, Alaska · 3669 days ago · 37 km deep · 82 km away
  42. 2.5Rat Islands, Aleutian Islands, Alaska · 3669 days ago · 35 km deep · 99 km away
  43. 2.5160 km WSW of Adak, Alaska · 3667 days ago · 34 km deep · 96 km away
  44. 2.3235 km W of Adak, Alaska · 3666 days ago · 79 km deep · 32 km away
  45. 2.9Rat Islands, Aleutian Islands, Alaska · 3665 days ago · 103 km deep · 100 km away
  46. 2.4Rat Islands, Aleutian Islands, Alaska · 3665 days ago · 23 km deep · 50 km away
  47. 2.0Rat Islands, Aleutian Islands, Alaska · 3665 days ago · 46 km deep · 64 km away
  48. 3.0Rat Islands, Aleutian Islands, Alaska · 3665 days ago · 93 km deep · 92 km away
  49. 2.1295 km WSW of Adak, Alaska · 3664 days ago · 36 km deep · 43 km away
  50. 2.2273 km WSW of Adak, Alaska · 3664 days ago · 48 km deep · 23 km away
  51. 2.1Rat Islands, Aleutian Islands, Alaska · 3664 days ago · 35 km deep · 78 km away
  52. 2.1200 km WSW of Adak, Alaska · 3663 days ago · 22 km deep · 55 km away
  53. 2.0Rat Islands, Aleutian Islands, Alaska · 3663 days ago · 43 km deep · 30 km away
  54. 2.6275 km WSW of Adak, Alaska · 3662 days ago · 29 km deep · 25 km away
  55. 1.9276 km W of Adak, Alaska · 3661 days ago · 7 km deep · 34 km away
  56. 2.5193 km WSW of Adak, Alaska · 3660 days ago · 16 km deep · 75 km away
  57. 1.7197 km WSW of Adak, Alaska · 3660 days ago · 20 km deep · 62 km away
  58. 2.2272 km W of Adak, Alaska · 3660 days ago · 63 km deep · 27 km away
  59. 2.1193 km W of Adak, Alaska · 3659 days ago · 120 km deep · 70 km away
  60. 2.1194 km W of Adak, Alaska · 3659 days ago · 97 km deep · 67 km away

The first 60 of 88.

Before

  1. 1.8Rat Islands, Aleutian Islands, Alaska · 3691 days ago · 29 km deep · 68 km away
  2. 2.1183 km WSW of Adak, Alaska · 3691 days ago · 23 km deep · 71 km away
  3. 2.4Rat Islands, Aleutian Islands, Alaska · 3692 days ago · 19 km deep · 92 km away
  4. 1.9262 km WSW of Adak, Alaska · 3693 days ago · 9 km deep · 15 km away
  5. 2.7213 km W of Adak, Alaska · 3694 days ago · 188 km deep · 79 km away
  6. 2.5192 km WSW of Adak, Alaska · 3695 days ago · 26 km deep · 79 km away
  7. 2.7194 km WSW of Adak, Alaska · 3695 days ago · 70 km deep · 59 km away
  8. 2.1177 km WSW of Adak, Alaska · 3695 days ago · 24 km deep · 76 km away
  9. 2.2183 km WSW of Adak, Alaska · 3695 days ago · 20 km deep · 76 km away
  10. 2.0163 km WSW of Adak, Alaska · 3695 days ago · 23 km deep · 94 km away
  11. 4.2290 km WSW of Adak, Alaska · 3696 days ago · 21 km deep · 46 km away
  12. 2.7179 km WSW of Adak, Alaska · 3697 days ago · 26 km deep · 89 km away
  13. 1.8Rat Islands, Aleutian Islands, Alaska · 3699 days ago · 36 km deep · 69 km away
  14. 1.6Rat Islands, Aleutian Islands, Alaska · 3700 days ago · 45 km deep · 84 km away
  15. 2.4187 km W of Adak, Alaska · 3700 days ago · 171 km deep · 88 km away
  16. 1.8Rat Islands, Aleutian Islands, Alaska · 3701 days ago · 52 km deep · 61 km away
  17. 2.1Rat Islands, Aleutian Islands, Alaska · 3701 days ago · 3 km deep · 28 km away
  18. 3.1Rat Islands, Aleutian Islands, Alaska · 3702 days ago · 31 km deep · 45 km away
  19. 2.2212 km WSW of Adak, Alaska · 3702 days ago · 5 km deep · 42 km away
  20. 1.9Rat Islands, Aleutian Islands, Alaska · 3702 days ago · 47 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10006p6n (also filed as ak016azi0nkc). Read Sun, Oct 4, 2026, 6:06 AM UTC.