Alaska earthquakes

M2.6 earthquake 55 km SE of Adak, Alaska

A magnitude 2.6 earthquake struck 55 km SE of Adak, Alaska on Sat, Sep 2, 2023, 12:56 AM HADT (09:56 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M5.0 44 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
2.6 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-09-02 09:56:22 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.526° N, 176.057° 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
2.6ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.128 · 8 stations
2.1ML, 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 3.6 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
228°, poorly surrounded by stations
Stations used
16

Nearby

Within 100 km, magnitude 1.5 and up: 179 in the 60 days after this one and 121 in the 30 days before it.

After

  1. 2.144 km E of Adak, Alaska · 1125 days ago · 70 km deep · 36 km away
  2. 3.365 km SSE of Adak, Alaska · 1124 days ago · 35 km deep · 28 km away
  3. 2.790 km SSE of Adak, Alaska · 1124 days ago · 10 km deep · 50 km away
  4. 1.953 km SSW of Adak, Alaska · 1124 days ago · 49 km deep · 67 km away
  5. 1.868 km SW of Adak, Alaska · 1124 days ago · 48 km deep · 95 km away
  6. 2.770 km SSE of Adak, Alaska · 1123 days ago · 35 km deep · 38 km away
  7. 1.751 km SW of Adak, Alaska · 1123 days ago · 44 km deep · 70 km away
  8. 3.244 km S of Adak, Alaska · 1123 days ago · 35 km deep · 33 km away
  9. 3.268 km SW of Adak, Alaska · 1122 days ago · 65 km deep · 95 km away
  10. 1.738 km SE of Adak, Alaska · 1122 days ago · 87 km deep · 18 km away
  11. 3.081 km SE of Adak, Alaska · 1121 days ago · 35 km deep · 27 km away
  12. 1.979 km ESE of Adak, Alaska · 1121 days ago · 26 km deep · 27 km away
  13. 1.993 km S of Adak, Alaska · 1121 days ago · 26 km deep · 74 km away
  14. 1.973 km ESE of Adak, Alaska · 1121 days ago · 34 km deep · 28 km away
  15. 1.542 km S of Adak, Alaska · 1120 days ago · 35 km deep · 37 km away
  16. 2.053 km NE of Adak, Alaska · 1120 days ago · 132 km deep · 75 km away
  17. 1.780 km SE of Adak, Alaska · 1120 days ago · 20 km deep · 25 km away
  18. 1.524 km SSW of Adak, Alaska · 1120 days ago · 65 km deep · 53 km away
  19. 2.048 km SSW of Adak, Alaska · 1119 days ago · 39 km deep · 63 km away
  20. 1.719 km WSW of Adak, Alaska · 1119 days ago · 77 km deep · 67 km away
  21. 2.082 km W of Atka, Alaska · 1119 days ago · 107 km deep · 79 km away
  22. 1.546 km SSW of Adak, Alaska · 1119 days ago · 42 km deep · 63 km away
  23. 1.621 km S of Adak, Alaska · 1119 days ago · 65 km deep · 47 km away
  24. 2.622 km ESE of Adak, Alaska · 1119 days ago · 68 km deep · 34 km away
  25. 2.0Andreanof Islands, Aleutian Islands, Alaska · 1119 days ago · 25 km deep · 25 km away
  26. 1.751 km SE of Adak, Alaska · 1118 days ago · 31 km deep · 8 km away
  27. 1.828 km SSE of Adak, Alaska · 1118 days ago · 46 km deep · 31 km away
  28. 2.779 km ESE of Adak, Alaska · 1117 days ago · 35 km deep · 31 km away
  29. 1.941 km S of Adak, Alaska · 1117 days ago · 44 km deep · 41 km away
  30. 2.168 km SW of Adak, Alaska · 1117 days ago · 32 km deep · 92 km away
  31. 3.543 km E of Adak, Alaska · 1117 days ago · 80 km deep · 34 km away
  32. 1.858 km SSE of Adak, Alaska · 1117 days ago · 18 km deep · 21 km away
  33. 1.938 km ESE of Adak, Alaska · 1117 days ago · 72 km deep · 24 km away
  34. 3.387 km ESE of Adak, Alaska · 1116 days ago · 35 km deep · 34 km away
  35. 1.661 km SE of Adak, Alaska · 1116 days ago · 23 km deep · 11 km away
  36. 1.672 km SW of Adak, Alaska · 1115 days ago · 39 km deep · 87 km away
  37. 1.829 km SW of Adak, Alaska · 1115 days ago · 2 km deep · 67 km away
  38. 2.215 km ESE of Adak, Alaska · 1115 days ago · 101 km deep · 41 km away
  39. 5.044 km SSE of Adak, Alaska · 1114 days ago · 50 km deep · 26 km away · felt by 2
  40. 1.958 km SSE of Adak, Alaska · 1114 days ago · 24 km deep · 27 km away
  41. 1.968 km SSW of Adak, Alaska · 1114 days ago · 26 km deep · 71 km away
  42. 1.768 km SSW of Adak, Alaska · 1113 days ago · 25 km deep · 70 km away
  43. 2.163 km SE of Adak, Alaska · 1113 days ago · 23 km deep · 8 km away
  44. 1.956 km S of Adak, Alaska · 1113 days ago · 37 km deep · 52 km away
  45. 2.650 km WSW of Adak, Alaska · 1113 days ago · 78 km deep · 92 km away
  46. 2.649 km S of Adak, Alaska · 1113 days ago · 40 km deep · 43 km away
  47. 1.860 km SSE of Adak, Alaska · 1113 days ago · 22 km deep · 14 km away
  48. 2.0Andreanof Islands, Aleutian Islands, Alaska · 1112 days ago · 22 km deep · 14 km away
  49. 2.064 km SSW of Adak, Alaska · 1112 days ago · 46 km deep · 74 km away
  50. 2.759 km S of Adak, Alaska · 1112 days ago · 35 km deep · 51 km away
  51. 1.757 km S of Adak, Alaska · 1112 days ago · 39 km deep · 54 km away
  52. 2.072 km SSW of Adak, Alaska · 1112 days ago · 32 km deep · 78 km away
  53. 3.878 km SE of Adak, Alaska · 1111 days ago · 35 km deep · 23 km away
  54. 1.733 km SE of Adak, Alaska · 1111 days ago · 64 km deep · 22 km away
  55. 1.830 km WSW of Adak, Alaska · 1111 days ago · 13 km deep · 72 km away
  56. 1.753 km SW of Adak, Alaska · 1110 days ago · 55 km deep · 76 km away
  57. 1.792 km ESE of Adak, Alaska · 1110 days ago · 29 km deep · 47 km away
  58. 1.836 km W of Adak, Alaska · 1110 days ago · 79 km deep · 83 km away
  59. 2.9109 km SSW of Atka, Alaska · 1109 days ago · 35 km deep · 71 km away
  60. 1.863 km SSW of Adak, Alaska · 1109 days ago · 33 km deep · 71 km away

The first 60 of 179.

Before

  1. 2.677 km SW of Adak, Alaska · 1125 days ago · 35 km deep · 98 km away
  2. 1.532 km SSW of Adak, Alaska · 1126 days ago · 41 km deep · 49 km away
  3. 1.755 km S of Adak, Alaska · 1126 days ago · 13 km deep · 36 km away
  4. 2.054 km WSW of Adak, Alaska · 1126 days ago · 76 km deep · 96 km away
  5. 2.053 km S of Adak, Alaska · 1126 days ago · 26 km deep · 40 km away
  6. 1.951 km S of Adak, Alaska · 1127 days ago · 24 km deep · 44 km away
  7. 2.566 km SSW of Adak, Alaska · 1127 days ago · 40 km deep · 67 km away
  8. 1.861 km SE of Adak, Alaska · 1128 days ago · 29 km deep · 6 km away
  9. 3.457 km SE of Adak, Alaska · 1128 days ago · 35 km deep · 3 km away
  10. 1.857 km SSE of Adak, Alaska · 1128 days ago · 21 km deep · 26 km away
  11. 2.718 km S of Adak, Alaska · 1129 days ago · 82 km deep · 45 km away
  12. 1.969 km SSE of Adak, Alaska · 1129 days ago · 23 km deep · 30 km away
  13. 2.6Andreanof Islands, Aleutian Islands, Alaska · 1129 days ago · 35 km deep · 61 km away
  14. 1.751 km SE of Adak, Alaska · 1129 days ago · 24 km deep · 7 km away
  15. 1.869 km SSE of Adak, Alaska · 1129 days ago · 7 km deep · 31 km away
  16. 1.870 km SSE of Adak, Alaska · 1129 days ago · 20 km deep · 33 km away
  17. 1.949 km S of Adak, Alaska · 1130 days ago · 32 km deep · 36 km away
  18. 2.3119 km SSW of Atka, Alaska · 1130 days ago · 36 km deep · 82 km away
  19. 2.169 km ESE of Adak, Alaska · 1130 days ago · 24 km deep · 20 km away
  20. 1.842 km SSE of Adak, Alaska · 1130 days ago · 46 km deep · 19 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000kvvj (also filed as ak023b9ccyuu). Read Thu, Oct 1, 2026, 5:27 AM UTC.