Alaska earthquakes

M2.8 earthquake 65 km WSW of Adak, Alaska

A magnitude 2.8 earthquake struck 65 km WSW of Adak, Alaska on Sat, Jul 22, 2023, 8:14 AM HADT (17:14 UTC), 77 km (48 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
2.8 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-07-22 17:14:51 UTC
Depth
76.5 km (47.6 mi), intermediate-depth
Epicenter
51.635° N, 177.493° 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
2.8ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.081 · 20 stations
2.4ML, 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 4.6 km horizontally, 5.5 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
192°, poorly surrounded by stations
Stations used
20

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and 193 in the 30 days before it.

After

  1. 3.2132 km WSW of Adak, Alaska · 1166 days ago · 86 km deep · 71 km away
  2. 1.889 km SW of Adak, Alaska · 1166 days ago · 19 km deep · 30 km away
  3. 2.5157 km WSW of Adak, Alaska · 1166 days ago · 35 km deep · 93 km away
  4. 2.0141 km WSW of Adak, Alaska · 1165 days ago · 21 km deep · 76 km away
  5. 2.5122 km SW of Adak, Alaska · 1164 days ago · 35 km deep · 62 km away
  6. 1.940 km S of Adak, Alaska · 1164 days ago · 35 km deep · 63 km away
  7. 2.0127 km WSW of Adak, Alaska · 1164 days ago · 13 km deep · 65 km away
  8. 1.650 km SW of Adak, Alaska · 1164 days ago · 43 km deep · 29 km away
  9. 2.1125 km WSW of Adak, Alaska · 1164 days ago · 42 km deep · 60 km away
  10. 1.8135 km WSW of Adak, Alaska · 1163 days ago · 13 km deep · 72 km away
  11. 2.0131 km WSW of Adak, Alaska · 1163 days ago · 9 km deep · 68 km away
  12. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1163 days ago · 86 km deep · 58 km away
  13. 1.838 km SSE of Adak, Alaska · 1163 days ago · 36 km deep · 77 km away
  14. 1.889 km SW of Adak, Alaska · 1162 days ago · 36 km deep · 32 km away
  15. 2.232 km ESE of Adak, Alaska · 1162 days ago · 62 km deep · 91 km away
  16. 1.759 km W of Adak, Alaska · 1162 days ago · 92 km deep · 28 km away
  17. 1.566 km SSE of Adak, Alaska · 1162 days ago · 18 km deep · 86 km away
  18. 1.663 km SSW of Adak, Alaska · 1162 days ago · 24 km deep · 57 km away
  19. 1.710 km NW of Adak, Alaska · 1162 days ago · 118 km deep · 61 km away
  20. 1.639 km SSE of Adak, Alaska · 1161 days ago · 36 km deep · 77 km away
  21. 1.5Andreanof Islands, Aleutian Islands, Alaska · 1161 days ago · 16 km deep · 75 km away
  22. 2.0103 km WSW of Adak, Alaska · 1161 days ago · 13 km deep · 40 km away
  23. 1.7127 km WSW of Adak, Alaska · 1161 days ago · 12 km deep · 64 km away
  24. 1.974 km SW of Adak, Alaska · 1161 days ago · 31 km deep · 15 km away
  25. 1.563 km SE of Adak, Alaska · 1161 days ago · 22 km deep · 100 km away
  26. 1.5163 km WSW of Adak, Alaska · 1161 days ago · 13 km deep · 100 km away
  27. 1.6126 km WSW of Adak, Alaska · 1161 days ago · 8 km deep · 63 km away
  28. 1.5Andreanof Islands, Aleutian Islands, Alaska · 1160 days ago · 8 km deep · 64 km away
  29. 1.9148 km WSW of Adak, Alaska · 1160 days ago · 28 km deep · 84 km away
  30. 1.993 km WSW of Adak, Alaska · 1160 days ago · 56 km deep · 29 km away
  31. 1.6101 km SSW of Adak, Alaska · 1160 days ago · 25 km deep · 64 km away
  32. 1.759 km SSE of Adak, Alaska · 1160 days ago · 13 km deep · 78 km away
  33. 1.8147 km W of Adak, Alaska · 1160 days ago · 13 km deep · 86 km away
  34. 1.558 km SSE of Adak, Alaska · 1160 days ago · 23 km deep · 95 km away
  35. 1.780 km WSW of Adak, Alaska · 1160 days ago · 36 km deep · 19 km away
  36. 2.1148 km SW of Adak, Alaska · 1160 days ago · 26 km deep · 86 km away
  37. 1.540 km SW of Adak, Alaska · 1160 days ago · 59 km deep · 36 km away
  38. 1.664 km SSW of Adak, Alaska · 1160 days ago · 36 km deep · 40 km away
  39. 1.721 km S of Adak, Alaska · 1159 days ago · 60 km deep · 63 km away
  40. 3.758 km SSW of Adak, Alaska · 1159 days ago · 35 km deep · 52 km away
  41. 1.882 km WSW of Adak, Alaska · 1159 days ago · 68 km deep · 22 km away
  42. 2.1114 km SW of Adak, Alaska · 1159 days ago · 16 km deep · 52 km away
  43. 1.9101 km WSW of Adak, Alaska · 1159 days ago · 38 km deep · 38 km away
  44. 1.653 km S of Adak, Alaska · 1158 days ago · 26 km deep · 66 km away
  45. 1.581 km WSW of Adak, Alaska · 1158 days ago · 40 km deep · 19 km away
  46. 1.689 km WSW of Adak, Alaska · 1158 days ago · 25 km deep · 26 km away
  47. 1.558 km WSW of Adak, Alaska · 1158 days ago · 68 km deep · 13 km away
  48. 1.5125 km WSW of Adak, Alaska · 1158 days ago · 7 km deep · 61 km away
  49. 3.975 km SSW of Adak, Alaska · 1158 days ago · 35 km deep · 46 km away
  50. 1.873 km SSW of Adak, Alaska · 1158 days ago · 27 km deep · 45 km away
  51. 3.176 km SSE of Adak, Alaska · 1157 days ago · 20 km deep · 93 km away
  52. 1.873 km SSW of Adak, Alaska · 1157 days ago · 31 km deep · 45 km away
  53. 2.6117 km WSW of Adak, Alaska · 1157 days ago · 35 km deep · 52 km away
  54. 2.0141 km WSW of Adak, Alaska · 1157 days ago · 11 km deep · 77 km away
  55. 3.375 km SSE of Adak, Alaska · 1157 days ago · 35 km deep · 91 km away
  56. 3.470 km SSE of Adak, Alaska · 1157 days ago · 35 km deep · 88 km away
  57. 2.7Andreanof Islands, Aleutian Islands, Alaska · 1157 days ago · 35 km deep · 99 km away
  58. 2.236 km NE of Adak, Alaska · 1157 days ago · 119 km deep · 99 km away
  59. 2.6143 km WSW of Adak, Alaska · 1157 days ago · 73 km deep · 80 km away
  60. 1.768 km SSE of Adak, Alaska · 1157 days ago · 19 km deep · 87 km away

The first 60 of at least 201.

Before

  1. 1.8126 km WSW of Adak, Alaska · 1167 days ago · 7 km deep · 62 km away
  2. 1.640 km SSE of Adak, Alaska · 1167 days ago · 30 km deep · 79 km away
  3. 2.3155 km SW of Adak, Alaska · 1167 days ago · 15 km deep · 91 km away
  4. 1.866 km SSW of Adak, Alaska · 1167 days ago · 26 km deep · 57 km away
  5. 1.760 km SSW of Adak, Alaska · 1167 days ago · 23 km deep · 54 km away
  6. 1.967 km WSW of Adak, Alaska · 1168 days ago · 60 km deep · 7 km away
  7. 1.748 km SW of Adak, Alaska · 1168 days ago · 45 km deep · 28 km away
  8. 2.6Andreanof Islands, Aleutian Islands, Alaska · 1168 days ago · 35 km deep · 76 km away
  9. 1.983 km SW of Adak, Alaska · 1168 days ago · 41 km deep · 23 km away
  10. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1168 days ago · 7 km deep · 48 km away
  11. 1.875 km S of Adak, Alaska · 1168 days ago · 17 km deep · 87 km away
  12. 3.3123 km WSW of Adak, Alaska · 1168 days ago · 32 km deep · 58 km away
  13. 1.894 km SW of Adak, Alaska · 1169 days ago · 14 km deep · 34 km away
  14. 1.875 km S of Adak, Alaska · 1169 days ago · 19 km deep · 88 km away
  15. 1.942 km S of Adak, Alaska · 1169 days ago · 49 km deep · 69 km away
  16. 1.545 km SSE of Adak, Alaska · 1169 days ago · 29 km deep · 80 km away
  17. 1.655 km SSW of Adak, Alaska · 1169 days ago · 39 km deep · 36 km away
  18. 1.828 km ESE of Adak, Alaska · 1170 days ago · 75 km deep · 87 km away
  19. 1.696 km W of Adak, Alaska · 1170 days ago · -2 km deep · 43 km away
  20. 1.5Andreanof Islands, Aleutian Islands, Alaska · 1170 days ago · 19 km deep · 32 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000kwfe (also filed as ak0239c0axl1). Read Thu, Oct 1, 2026, 2:36 AM UTC.