Alaska earthquakes

M2.9 earthquake 56 km NE of Adak, Alaska

A magnitude 2.9 earthquake struck 56 km NE of Adak, Alaska on Mon, Jul 24, 2023, 2:02 PM HADT (23:02 UTC), 188 km (117 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
2.9 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-07-24 23:02:14 UTC
Depth
188.4 km (117.1 mi), intermediate-depth
Epicenter
52.192° N, 175.993° 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
2.9ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.128 · 12 stations
2.8ML, 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 15.5 km horizontally, 4.0 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
173°
Stations used
21

Nearby

Within 100 km, magnitude 1.5 and up: 163 in the 60 days after this one and 87 in the 30 days before it.

After

  1. 1.940 km S of Adak, Alaska · 1164 days ago · 35 km deep · 86 km away
  2. 3.1Andreanof Islands, Aleutian Islands, Alaska · 1164 days ago · 189 km deep · 95 km away
  3. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1163 days ago · 86 km deep · 74 km away
  4. 1.838 km SSE of Adak, Alaska · 1163 days ago · 36 km deep · 75 km away
  5. 3.786 km ESE of Adak, Alaska · 1163 days ago · 35 km deep · 87 km away
  6. 2.167 km WSW of Atka, Alaska · 1162 days ago · 79 km deep · 67 km away
  7. 2.232 km ESE of Adak, Alaska · 1162 days ago · 62 km deep · 48 km away
  8. 1.710 km NW of Adak, Alaska · 1162 days ago · 118 km deep · 60 km away
  9. 1.639 km SSE of Adak, Alaska · 1162 days ago · 36 km deep · 76 km away
  10. 2.3Andreanof Islands, Aleutian Islands, Alaska · 1161 days ago · 207 km deep · 24 km away
  11. 1.5Andreanof Islands, Aleutian Islands, Alaska · 1161 days ago · 53 km deep · 59 km away
  12. 2.055 km ENE of Adak, Alaska · 1161 days ago · 172 km deep · 13 km away
  13. 1.563 km SE of Adak, Alaska · 1161 days ago · 22 km deep · 87 km away
  14. 1.759 km SSE of Adak, Alaska · 1160 days ago · 13 km deep · 99 km away
  15. 1.558 km SSE of Adak, Alaska · 1160 days ago · 23 km deep · 85 km away
  16. 2.769 km NE of Adak, Alaska · 1160 days ago · 211 km deep · 13 km away
  17. 1.540 km SW of Adak, Alaska · 1160 days ago · 59 km deep · 96 km away
  18. 1.721 km S of Adak, Alaska · 1159 days ago · 60 km deep · 69 km away
  19. 1.971 km ESE of Adak, Alaska · 1159 days ago · 32 km deep · 69 km away
  20. 1.869 km WSW of Atka, Alaska · 1159 days ago · 51 km deep · 71 km away
  21. 1.653 km S of Adak, Alaska · 1159 days ago · 26 km deep · 99 km away
  22. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1158 days ago · 116 km deep · 10 km away
  23. 1.660 km SE of Adak, Alaska · 1158 days ago · 26 km deep · 75 km away
  24. 2.374 km ENE of Adak, Alaska · 1158 days ago · 147 km deep · 20 km away
  25. 2.557 km N of Adak, Alaska · 1157 days ago · 195 km deep · 43 km away
  26. 2.236 km NE of Adak, Alaska · 1157 days ago · 119 km deep · 21 km away
  27. 1.869 km SE of Adak, Alaska · 1155 days ago · 22 km deep · 92 km away
  28. 2.187 km SW of Atka, Alaska · 1155 days ago · 26 km deep · 90 km away
  29. 2.244 km NNW of Adak, Alaska · 1154 days ago · 137 km deep · 60 km away
  30. 3.275 km W of Atka, Alaska · 1154 days ago · 123 km deep · 48 km away
  31. 3.050 km W of Atka, Alaska · 1154 days ago · 143 km deep · 73 km away
  32. 2.566 km SE of Adak, Alaska · 1154 days ago · 35 km deep · 74 km away
  33. 1.859 km SE of Adak, Alaska · 1153 days ago · 22 km deep · 77 km away
  34. 1.738 km SSE of Adak, Alaska · 1152 days ago · 34 km deep · 75 km away
  35. 1.634 km SSE of Adak, Alaska · 1151 days ago · 41 km deep · 74 km away
  36. 1.851 km SSE of Adak, Alaska · 1151 days ago · 26 km deep · 83 km away
  37. 1.661 km ESE of Adak, Alaska · 1151 days ago · 35 km deep · 68 km away
  38. 2.057 km SE of Adak, Alaska · 1151 days ago · 23 km deep · 77 km away
  39. 1.877 km W of Atka, Alaska · 1151 days ago · 82 km deep · 45 km away
  40. 2.454 km E of Adak, Alaska · 1150 days ago · 75 km deep · 43 km away
  41. 1.5Andreanof Islands, Aleutian Islands, Alaska · 1149 days ago · 33 km deep · 75 km away
  42. 3.3Andreanof Islands, Aleutian Islands, Alaska · 1148 days ago · 39 km deep · 90 km away
  43. 1.738 km E of Adak, Alaska · 1148 days ago · 82 km deep · 39 km away
  44. 1.560 km SSE of Adak, Alaska · 1147 days ago · 23 km deep · 88 km away
  45. 1.552 km S of Adak, Alaska · 1147 days ago · 24 km deep · 94 km away
  46. 2.812 km S of Adak, Alaska · 1147 days ago · 13 km deep · 63 km away
  47. 3.156 km SW of Atka, Alaska · 1147 days ago · 19 km deep · 92 km away
  48. 1.7Andreanof Islands, Aleutian Islands, Alaska · 1147 days ago · 23 km deep · 87 km away
  49. 1.7Andreanof Islands, Aleutian Islands, Alaska · 1147 days ago · 72 km deep · 38 km away
  50. 1.761 km SE of Adak, Alaska · 1146 days ago · 26 km deep · 87 km away
  51. 1.779 km WSW of Atka, Alaska · 1146 days ago · 35 km deep · 65 km away
  52. 1.659 km SE of Adak, Alaska · 1146 days ago · 26 km deep · 75 km away
  53. 1.647 km SSW of Adak, Alaska · 1146 days ago · 37 km deep · 100 km away
  54. 2.768 km ENE of Adak, Alaska · 1146 days ago · 216 km deep · 28 km away
  55. 1.544 km SSW of Adak, Alaska · 1145 days ago · 40 km deep · 96 km away
  56. 1.981 km WSW of Atka, Alaska · 1145 days ago · 70 km deep · 52 km away
  57. 2.842 km WSW of Atka, Alaska · 1145 days ago · 90 km deep · 82 km away
  58. 1.614 km E of Adak, Alaska · 1145 days ago · 113 km deep · 46 km away
  59. 3.488 km ESE of Adak, Alaska · 1144 days ago · 35 km deep · 78 km away
  60. 1.591 km SW of Atka, Alaska · 1144 days ago · 32 km deep · 92 km away

The first 60 of 163.

Before

  1. 3.361 km SW of Atka, Alaska · 1165 days ago · 61 km deep · 90 km away
  2. 1.5Andreanof Islands, Aleutian Islands, Alaska · 1167 days ago · 26 km deep · 77 km away
  3. 1.640 km SSE of Adak, Alaska · 1167 days ago · 30 km deep · 75 km away
  4. 1.767 km ESE of Adak, Alaska · 1167 days ago · 22 km deep · 68 km away
  5. 3.165 km ENE of Adak, Alaska · 1167 days ago · 157 km deep · 13 km away
  6. 2.6Andreanof Islands, Aleutian Islands, Alaska · 1168 days ago · 35 km deep · 77 km away
  7. 2.539 km NE of Adak, Alaska · 1169 days ago · 148 km deep · 17 km away
  8. 2.643 km W of Atka, Alaska · 1169 days ago · 15 km deep · 80 km away
  9. 1.942 km S of Adak, Alaska · 1169 days ago · 49 km deep · 85 km away
  10. 3.572 km WSW of Atka, Alaska · 1169 days ago · 79 km deep · 57 km away
  11. 1.545 km SSE of Adak, Alaska · 1169 days ago · 29 km deep · 80 km away
  12. 2.632 km WNW of Atka, Alaska · 1170 days ago · 159 km deep · 95 km away
  13. 1.861 km ESE of Adak, Alaska · 1170 days ago · 34 km deep · 67 km away
  14. 1.828 km ESE of Adak, Alaska · 1170 days ago · 75 km deep · 50 km away
  15. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1171 days ago · 49 km deep · 84 km away
  16. 3.342 km S of Adak, Alaska · 1171 days ago · 34 km deep · 90 km away
  17. 2.666 km SE of Adak, Alaska · 1171 days ago · 35 km deep · 74 km away
  18. 1.585 km SW of Atka, Alaska · 1172 days ago · 47 km deep · 71 km away
  19. 1.663 km SW of Atka, Alaska · 1173 days ago · 39 km deep · 93 km away
  20. 1.761 km SSE of Adak, Alaska · 1173 days ago · 23 km deep · 89 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000kx5e (also filed as ak0239fevkru). Read Thu, Oct 1, 2026, 4:21 AM UTC.