Alaska earthquakes

M2.7 earthquake 68 km SE of Adak, Alaska

A magnitude 2.7 earthquake struck 68 km SE of Adak, Alaska on Wed, May 17, 2023, 8:46 PM HADT (05:46 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.6 15 km SE 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
2.7 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-05-18 05:46:37 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.389° N, 176.016° 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
2.7ML, 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 4.1 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
282°, poorly surrounded by stations
Stations used
11

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 68 in the 30 days before it.

After

  1. 1.537 km S of Adak, Alaska · 1233 days ago · 27 km deep · 52 km away
  2. 1.654 km S of Adak, Alaska · 1233 days ago · 24 km deep · 46 km away
  3. 4.615 km SE of Adak, Alaska · 1233 days ago · 60 km deep · 54 km away
  4. 1.842 km SSE of Adak, Alaska · 1233 days ago · 29 km deep · 29 km away
  5. 1.842 km SSE of Adak, Alaska · 1233 days ago · 38 km deep · 29 km away
  6. 1.640 km SSE of Adak, Alaska · 1233 days ago · 33 km deep · 30 km away
  7. 1.839 km SSE of Adak, Alaska · 1233 days ago · 34 km deep · 31 km away
  8. 1.735 km SSE of Adak, Alaska · 1232 days ago · 34 km deep · 35 km away
  9. 1.540 km SSE of Adak, Alaska · 1232 days ago · 32 km deep · 30 km away
  10. 1.539 km SSE of Adak, Alaska · 1232 days ago · 35 km deep · 31 km away
  11. 2.845 km SSE of Adak, Alaska · 1232 days ago · 34 km deep · 26 km away
  12. 1.545 km SSE of Adak, Alaska · 1232 days ago · 13 km deep · 27 km away
  13. 1.638 km SSE of Adak, Alaska · 1231 days ago · 33 km deep · 32 km away
  14. 1.857 km SW of Adak, Alaska · 1231 days ago · 30 km deep · 82 km away
  15. 1.562 km SE of Adak, Alaska · 1231 days ago · 25 km deep · 6 km away
  16. 1.771 km WSW of Atka, Alaska · 1230 days ago · 46 km deep · 83 km away
  17. 1.846 km SSE of Adak, Alaska · 1230 days ago · 34 km deep · 27 km away
  18. 1.541 km SSE of Adak, Alaska · 1230 days ago · 37 km deep · 29 km away
  19. 1.674 km ESE of Adak, Alaska · 1229 days ago · 49 km deep · 36 km away
  20. 1.696 km ESE of Adak, Alaska · 1229 days ago · 51 km deep · 51 km away
  21. 3.231 km SSE of Adak, Alaska · 1229 days ago · 42 km deep · 38 km away
  22. 1.648 km S of Adak, Alaska · 1228 days ago · 17 km deep · 42 km away
  23. 1.652 km ESE of Adak, Alaska · 1228 days ago · 49 km deep · 30 km away
  24. 1.617 km S of Adak, Alaska · 1228 days ago · 13 km deep · 54 km away
  25. 3.255 km ESE of Adak, Alaska · 1228 days ago · 35 km deep · 26 km away
  26. 1.740 km SSE of Adak, Alaska · 1227 days ago · 46 km deep · 30 km away
  27. 1.934 km ESE of Adak, Alaska · 1227 days ago · 54 km deep · 38 km away
  28. 2.684 km SE of Adak, Alaska · 1226 days ago · 35 km deep · 21 km away
  29. 3.358 km SE of Adak, Alaska · 1226 days ago · 42 km deep · 15 km away
  30. 1.853 km SW of Adak, Alaska · 1226 days ago · 35 km deep · 74 km away
  31. 1.750 km SSE of Adak, Alaska · 1226 days ago · 34 km deep · 26 km away
  32. 1.657 km SE of Adak, Alaska · 1226 days ago · 7 km deep · 16 km away
  33. 3.542 km S of Adak, Alaska · 1226 days ago · 35 km deep · 47 km away
  34. 1.736 km SSW of Adak, Alaska · 1225 days ago · 62 km deep · 59 km away
  35. 1.964 km SSE of Adak, Alaska · 1225 days ago · 21 km deep · 14 km away
  36. 1.762 km S of Adak, Alaska · 1225 days ago · 22 km deep · 35 km away
  37. 1.961 km SE of Adak, Alaska · 1225 days ago · 22 km deep · 7 km away
  38. 1.944 km SSE of Adak, Alaska · 1225 days ago · 36 km deep · 31 km away
  39. 1.957 km SSE of Adak, Alaska · 1224 days ago · 18 km deep · 12 km away
  40. 1.943 km SW of Adak, Alaska · 1224 days ago · 40 km deep · 71 km away
  41. 3.555 km SW of Adak, Alaska · 1224 days ago · 35 km deep · 75 km away
  42. 2.7Andreanof Islands, Aleutian Islands, Alaska · 1223 days ago · 35 km deep · 8 km away
  43. 3.366 km SE of Adak, Alaska · 1223 days ago · 35 km deep · 10 km away
  44. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1223 days ago · 61 km deep · 61 km away
  45. 1.758 km SW of Adak, Alaska · 1223 days ago · 40 km deep · 85 km away
  46. 1.5Andreanof Islands, Aleutian Islands, Alaska · 1222 days ago · 32 km deep · 31 km away
  47. 3.8Andreanof Islands, Aleutian Islands, Alaska · 1221 days ago · 47 km deep · 10 km away
  48. 1.641 km S of Adak, Alaska · 1221 days ago · 35 km deep · 41 km away
  49. 1.873 km E of Adak, Alaska · 1221 days ago · 21 km deep · 53 km away
  50. 1.541 km SSE of Adak, Alaska · 1221 days ago · 30 km deep · 30 km away
  51. 1.659 km SSW of Adak, Alaska · 1221 days ago · 25 km deep · 73 km away
  52. 1.542 km SSE of Adak, Alaska · 1221 days ago · 29 km deep · 30 km away
  53. 1.654 km SE of Adak, Alaska · 1220 days ago · 23 km deep · 14 km away
  54. 1.765 km SE of Adak, Alaska · 1220 days ago · 22 km deep · 10 km away
  55. 1.955 km NE of Adak, Alaska · 1220 days ago · 129 km deep · 95 km away
  56. 2.427 km N of Adak, Alaska · 1220 days ago · 205 km deep · 92 km away
  57. 2.772 km SSW of Adak, Alaska · 1220 days ago · 35 km deep · 70 km away
  58. 2.8Andreanof Islands, Aleutian Islands, Alaska · 1219 days ago · 72 km deep · 74 km away
  59. 1.984 km SW of Atka, Alaska · 1219 days ago · 26 km deep · 79 km away
  60. 3.174 km SSW of Adak, Alaska · 1219 days ago · 40 km deep · 76 km away

The first 60 of at least 199.

Before

  1. 2.959 km S of Adak, Alaska · 1233 days ago · 35 km deep · 53 km away
  2. 1.866 km SSW of Adak, Alaska · 1234 days ago · 13 km deep · 73 km away
  3. 2.755 km S of Adak, Alaska · 1234 days ago · 35 km deep · 35 km away
  4. 2.861 km SE of Adak, Alaska · 1234 days ago · 35 km deep · 8 km away
  5. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1234 days ago · 18 km deep · 10 km away
  6. 3.128 km SSW of Adak, Alaska · 1234 days ago · 52 km deep · 55 km away
  7. 2.658 km SSE of Adak, Alaska · 1235 days ago · 35 km deep · 16 km away
  8. 2.942 km WSW of Adak, Alaska · 1236 days ago · 74 km deep · 84 km away
  9. 3.150 km ESE of Adak, Alaska · 1236 days ago · 63 km deep · 39 km away
  10. 3.0Andreanof Islands, Aleutian Islands, Alaska · 1236 days ago · 40 km deep · 33 km away
  11. 2.222 km NE of Adak, Alaska · 1236 days ago · 163 km deep · 73 km away
  12. 1.960 km ESE of Adak, Alaska · 1237 days ago · 36 km deep · 27 km away
  13. 1.757 km SSW of Adak, Alaska · 1237 days ago · 44 km deep · 63 km away
  14. 2.960 km NE of Adak, Alaska · 1237 days ago · 204 km deep · 94 km away
  15. 1.662 km SE of Adak, Alaska · 1237 days ago · 13 km deep · 7 km away
  16. 1.526 km WSW of Adak, Alaska · 1239 days ago · 15 km deep · 80 km away
  17. 1.874 km SSW of Adak, Alaska · 1240 days ago · 26 km deep · 68 km away
  18. 1.848 km SW of Adak, Alaska · 1241 days ago · 48 km deep · 77 km away
  19. 3.622 km SSE of Adak, Alaska · 1241 days ago · 72 km deep · 48 km away
  20. 1.851 km SW of Adak, Alaska · 1241 days ago · 39 km deep · 74 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000k330 (also filed as ak0236cbf02t). Read Fri, Oct 2, 2026, 1:41 PM UTC.