Alaska earthquakes

M2.1 earthquake 93 km ESE of Adak, Alaska

A magnitude 2.1 earthquake struck 93 km ESE of Adak, Alaska on Sat, Aug 23, 2025, 1:16 AM HADT (10:16 UTC), 42 km (26 mi) below the surface.

A larger quake followed: M4.5 86 km S of Atka, 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
2.1 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2025-08-23 10:16:31 UTC
Depth
42.2 km (26.2 mi), shallow
Epicenter
51.690° N, 175.319° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used
31

Nearby

Within 100 km, magnitude 1.5 and up: 59 in the 60 days after this one and 103 in the 30 days before it.

After

  1. 1.866 km SSE of Adak, Alaska · 405 days ago · 23 km deep · 78 km away
  2. 1.962 km SE of Adak, Alaska · 405 days ago · 23 km deep · 57 km away
  3. 1.962 km SSE of Adak, Alaska · 405 days ago · 24 km deep · 66 km away
  4. 1.964 km SE of Adak, Alaska · 404 days ago · 24 km deep · 64 km away
  5. 1.655 km ENE of Adak, Alaska · 404 days ago · 9 km deep · 63 km away
  6. 3.088 km SSE of Adak, Alaska · 404 days ago · 20 km deep · 85 km away
  7. 1.962 km SE of Adak, Alaska · 403 days ago · 26 km deep · 48 km away
  8. 2.070 km SSW of Atka, Alaska · 403 days ago · 40 km deep · 46 km away
  9. 2.011 km SW of Atka, Alaska · 403 days ago · 16 km deep · 84 km away
  10. 1.846 km SSE of Adak, Alaska · 403 days ago · 29 km deep · 73 km away
  11. 2.596 km SSE of Adak, Alaska · 402 days ago · 10 km deep · 89 km away
  12. 1.891 km SSE of Adak, Alaska · 402 days ago · 17 km deep · 88 km away
  13. 2.191 km SSE of Adak, Alaska · 402 days ago · 15 km deep · 90 km away
  14. 2.6107 km SSE of Adak, Alaska · 402 days ago · 10 km deep · 99 km away
  15. 2.692 km SSE of Adak, Alaska · 402 days ago · 10 km deep · 91 km away
  16. 2.894 km SSE of Adak, Alaska · 402 days ago · 10 km deep · 88 km away
  17. 2.9101 km SSE of Adak, Alaska · 402 days ago · 13 km deep · 91 km away
  18. 3.388 km SSE of Adak, Alaska · 402 days ago · 24 km deep · 84 km away
  19. 3.4105 km SSE of Adak, Alaska · 402 days ago · 12 km deep · 99 km away
  20. 1.891 km SSE of Adak, Alaska · 402 days ago · 25 km deep · 87 km away
  21. 1.884 km SSE of Adak, Alaska · 402 days ago · 18 km deep · 84 km away
  22. 3.253 km SE of Adak, Alaska · 401 days ago · 35 km deep · 54 km away
  23. 2.698 km SSE of Adak, Alaska · 401 days ago · 10 km deep · 90 km away
  24. 2.96 km SSE of Adak, Alaska · 401 days ago · 75 km deep · 90 km away
  25. 2.290 km SSE of Adak, Alaska · 400 days ago · 13 km deep · 89 km away
  26. 2.799 km SSE of Adak, Alaska · 400 days ago · 33 km deep · 94 km away
  27. 2.094 km SSE of Adak, Alaska · 400 days ago · 26 km deep · 89 km away
  28. 1.989 km SW of Atka, Alaska · 400 days ago · 41 km deep · 6 km away
  29. 1.642 km SSE of Adak, Alaska · 400 days ago · 36 km deep · 73 km away
  30. 1.756 km SE of Adak, Alaska · 400 days ago · 25 km deep · 63 km away
  31. 2.678 km ENE of Adak, Alaska · 400 days ago · 182 km deep · 68 km away
  32. 2.7105 km SW of Atka, Alaska · 398 days ago · 35 km deep · 33 km away
  33. 3.788 km S of Atka, Alaska · 398 days ago · 35 km deep · 89 km away
  34. 2.147 km SE of Adak, Alaska · 398 days ago · 37 km deep · 62 km away
  35. 4.080 km SSE of Atka, Alaska · 397 days ago · 35 km deep · 96 km away
  36. 3.066 km S of Atka, Alaska · 397 days ago · 24 km deep · 75 km away
  37. 1.953 km SSE of Adak, Alaska · 395 days ago · 56 km deep · 68 km away
  38. 1.953 km SE of Adak, Alaska · 395 days ago · 56 km deep · 55 km away
  39. 2.139 km S of Atka, Alaska · 395 days ago · 68 km deep · 74 km away
  40. 2.773 km SSE of Adak, Alaska · 394 days ago · 25 km deep · 67 km away
  41. 1.585 km WSW of Atka, Alaska · 394 days ago · 17 km deep · 37 km away
  42. 2.582 km ESE of Adak, Alaska · 394 days ago · 50 km deep · 17 km away
  43. 1.635 km NE of Adak, Alaska · 388 days ago · 19 km deep · 75 km away
  44. 1.518 km SW of Atka, Alaska · 386 days ago · 9 km deep · 77 km away
  45. 4.178 km WNW of Atka, Alaska · 385 days ago · 219 km deep · 89 km away
  46. 4.032 km NNE of Adak, Alaska · 383 days ago · 126 km deep · 90 km away · felt by 2
  47. 1.622 km E of Adak, Alaska · 380 days ago · 6 km deep · 73 km away
  48. 4.095 km SSE of Adak, Alaska · 373 days ago · 10 km deep · 79 km away · felt by 1
  49. 4.586 km S of Atka, Alaska · 372 days ago · 16 km deep · 71 km away
  50. 1.866 km SSE of Adak, Alaska · 370 days ago · 21 km deep · 78 km away
  51. 2.066 km SE of Adak, Alaska · 370 days ago · 26 km deep · 59 km away
  52. 2.783 km W of Atka, Alaska · 370 days ago · 225 km deep · 67 km away
  53. 3.192 km WNW of Atka, Alaska · 370 days ago · 215 km deep · 89 km away
  54. 3.983 km SW of Atka, Alaska · 369 days ago · 35 km deep · 15 km away
  55. 2.155 km SSW of Atka, Alaska · 367 days ago · 63 km deep · 62 km away
  56. 3.979 km NE of Adak, Alaska · 366 days ago · 222 km deep · 83 km away
  57. 4.4100 km SW of Atka, Alaska · 359 days ago · 35 km deep · 14 km away
  58. 2.672 km SE of Adak, Alaska · 349 days ago · 35 km deep · 60 km away
  59. 1.989 km ESE of Adak, Alaska · 349 days ago · 19 km deep · 20 km away

Before

  1. 1.968 km SSW of Atka, Alaska · 405 days ago · 16 km deep · 59 km away
  2. 1.954 km SSE of Adak, Alaska · 405 days ago · 26 km deep · 85 km away
  3. 3.093 km SW of Atka, Alaska · 406 days ago · 35 km deep · 14 km away
  4. 2.665 km SSE of Adak, Alaska · 406 days ago · 35 km deep · 65 km away
  5. 2.037 km WSW of Atka, Alaska · 406 days ago · 121 km deep · 59 km away
  6. 1.852 km SSW of Atka, Alaska · 406 days ago · 13 km deep · 57 km away
  7. 3.069 km SW of Atka, Alaska · 407 days ago · 35 km deep · 30 km away
  8. 1.957 km WSW of Atka, Alaska · 408 days ago · 69 km deep · 39 km away
  9. 1.799 km SW of Atka, Alaska · 408 days ago · 26 km deep · 19 km away
  10. 1.854 km S of Adak, Alaska · 409 days ago · 26 km deep · 90 km away
  11. 1.960 km SE of Adak, Alaska · 409 days ago · 23 km deep · 54 km away
  12. 3.164 km SE of Adak, Alaska · 409 days ago · 35 km deep · 53 km away
  13. 1.853 km SSE of Adak, Alaska · 409 days ago · 24 km deep · 77 km away
  14. 2.798 km ESE of Adak, Alaska · 409 days ago · 35 km deep · 9 km away
  15. 1.563 km SE of Adak, Alaska · 409 days ago · 26 km deep · 49 km away
  16. 1.663 km SE of Adak, Alaska · 409 days ago · 26 km deep · 62 km away
  17. 2.815 km SSE of Atka, Alaska · 410 days ago · 75 km deep · 96 km away
  18. 1.862 km SE of Adak, Alaska · 410 days ago · 26 km deep · 49 km away
  19. 3.154 km SE of Adak, Alaska · 410 days ago · 35 km deep · 63 km away
  20. 2.845 km SSE of Atka, Alaska · 410 days ago · 77 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak025astcdyd. Read Fri, Oct 2, 2026, 3:03 PM UTC.