Alaska earthquakes

M1.8 earthquake 66 km SSE of Adak, Alaska

A magnitude 1.8 earthquake struck 66 km SSE of Adak, Alaska on Sat, Aug 23, 2025, 5:24 AM HADT (14:24 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M4.9 71 km SSW of Adak, Alaska. This one was a foreshock.

More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
1.8 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2025-08-23 14:24:55 UTC
Depth
23.3 km (14.5 mi), shallow
Epicenter
51.315° N, 176.277° 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
18

Nearby

Within 100 km, magnitude 1.5 and up: 63 in the 60 days after this one and 114 in the 30 days before it.

After

  1. 1.962 km SE of Adak, Alaska · 405 days ago · 23 km deep · 22 km away
  2. 1.962 km SSE of Adak, Alaska · 405 days ago · 24 km deep · 13 km away
  3. 1.964 km SE of Adak, Alaska · 405 days ago · 24 km deep · 14 km away
  4. 2.565 km S of Adak, Alaska · 405 days ago · 35 km deep · 37 km away
  5. 3.775 km SW of Adak, Alaska · 404 days ago · 40 km deep · 78 km away
  6. 1.655 km ENE of Adak, Alaska · 404 days ago · 9 km deep · 92 km away
  7. 3.088 km SSE of Adak, Alaska · 404 days ago · 20 km deep · 22 km away
  8. 1.962 km SE of Adak, Alaska · 403 days ago · 26 km deep · 31 km away
  9. 1.846 km SSE of Adak, Alaska · 403 days ago · 29 km deep · 21 km away
  10. 2.596 km SSE of Adak, Alaska · 403 days ago · 10 km deep · 29 km away
  11. 1.891 km SSE of Adak, Alaska · 403 days ago · 17 km deep · 24 km away
  12. 2.191 km SSE of Adak, Alaska · 402 days ago · 15 km deep · 25 km away
  13. 2.6107 km SSE of Adak, Alaska · 402 days ago · 10 km deep · 40 km away
  14. 2.692 km SSE of Adak, Alaska · 402 days ago · 10 km deep · 26 km away
  15. 2.894 km SSE of Adak, Alaska · 402 days ago · 10 km deep · 28 km away
  16. 2.9101 km SSE of Adak, Alaska · 402 days ago · 13 km deep · 34 km away
  17. 3.388 km SSE of Adak, Alaska · 402 days ago · 24 km deep · 22 km away
  18. 3.4105 km SSE of Adak, Alaska · 402 days ago · 12 km deep · 39 km away
  19. 1.891 km SSE of Adak, Alaska · 402 days ago · 25 km deep · 25 km away
  20. 1.884 km SSE of Adak, Alaska · 402 days ago · 18 km deep · 17 km away
  21. 1.967 km SSW of Adak, Alaska · 402 days ago · 33 km deep · 51 km away
  22. 3.253 km SE of Adak, Alaska · 402 days ago · 35 km deep · 30 km away
  23. 2.698 km SSE of Adak, Alaska · 402 days ago · 10 km deep · 31 km away
  24. 1.656 km WSW of Adak, Alaska · 401 days ago · 7 km deep · 94 km away
  25. 2.96 km SSE of Adak, Alaska · 401 days ago · 75 km deep · 60 km away
  26. 2.290 km SSE of Adak, Alaska · 401 days ago · 13 km deep · 24 km away
  27. 2.799 km SSE of Adak, Alaska · 401 days ago · 33 km deep · 33 km away
  28. 2.094 km SSE of Adak, Alaska · 400 days ago · 26 km deep · 27 km away
  29. 1.989 km SW of Atka, Alaska · 400 days ago · 41 km deep · 85 km away
  30. 1.642 km SSE of Adak, Alaska · 400 days ago · 36 km deep · 25 km away
  31. 1.756 km SE of Adak, Alaska · 400 days ago · 25 km deep · 19 km away
  32. 1.688 km SW of Adak, Alaska · 400 days ago · 23 km deep · 95 km away
  33. 2.9101 km SW of Adak, Alaska · 399 days ago · 35 km deep · 100 km away
  34. 2.7105 km SW of Atka, Alaska · 398 days ago · 35 km deep · 83 km away
  35. 2.147 km SE of Adak, Alaska · 398 days ago · 37 km deep · 27 km away
  36. 2.031 km SSW of Adak, Alaska · 396 days ago · 63 km deep · 48 km away
  37. 1.953 km SSE of Adak, Alaska · 395 days ago · 56 km deep · 17 km away
  38. 1.953 km SE of Adak, Alaska · 395 days ago · 56 km deep · 28 km away
  39. 2.740 km SW of Adak, Alaska · 395 days ago · 77 km deep · 70 km away
  40. 1.895 km SW of Adak, Alaska · 394 days ago · 27 km deep · 92 km away
  41. 2.773 km SSE of Adak, Alaska · 394 days ago · 25 km deep · 13 km away
  42. 1.585 km WSW of Atka, Alaska · 394 days ago · 17 km deep · 99 km away
  43. 1.883 km SW of Adak, Alaska · 394 days ago · 22 km deep · 88 km away
  44. 2.582 km ESE of Adak, Alaska · 394 days ago · 50 km deep · 62 km away
  45. 3.8110 km SSW of Adak, Alaska · 392 days ago · 8 km deep · 75 km away
  46. 1.635 km NE of Adak, Alaska · 388 days ago · 19 km deep · 83 km away
  47. 4.032 km NNE of Adak, Alaska · 383 days ago · 126 km deep · 92 km away · felt by 2
  48. 1.622 km E of Adak, Alaska · 380 days ago · 6 km deep · 66 km away
  49. 3.898 km SW of Adak, Alaska · 374 days ago · 43 km deep · 93 km away
  50. 4.095 km SSE of Adak, Alaska · 373 days ago · 10 km deep · 29 km away · felt by 1
  51. 1.850 km SW of Adak, Alaska · 371 days ago · 15 km deep · 67 km away
  52. 1.866 km SSE of Adak, Alaska · 370 days ago · 21 km deep · 1 km away
  53. 2.066 km SE of Adak, Alaska · 370 days ago · 26 km deep · 20 km away
  54. 3.983 km SW of Atka, Alaska · 369 days ago · 35 km deep · 91 km away
  55. 3.8103 km S of Adak, Alaska · 369 days ago · 10 km deep · 59 km away
  56. 1.651 km SW of Adak, Alaska · 369 days ago · 14 km deep · 74 km away
  57. 2.757 km SSW of Adak, Alaska · 362 days ago · 34 km deep · 42 km away
  58. 4.4100 km SW of Atka, Alaska · 359 days ago · 35 km deep · 77 km away
  59. 2.672 km SE of Adak, Alaska · 350 days ago · 35 km deep · 20 km away
  60. 2.454 km SW of Adak, Alaska · 350 days ago · 36 km deep · 60 km away

The first 60 of 63.

Before

  1. 2.193 km ESE of Adak, Alaska · 405 days ago · 42 km deep · 78 km away
  2. 1.954 km SSE of Adak, Alaska · 406 days ago · 26 km deep · 16 km away
  3. 3.093 km SW of Atka, Alaska · 406 days ago · 35 km deep · 83 km away
  4. 2.665 km SSE of Adak, Alaska · 406 days ago · 35 km deep · 13 km away
  5. 2.094 km SW of Adak, Alaska · 406 days ago · 27 km deep · 94 km away
  6. 2.858 km WSW of Adak, Alaska · 407 days ago · 10 km deep · 89 km away
  7. 3.468 km SW of Adak, Alaska · 408 days ago · 60 km deep · 77 km away
  8. 1.569 km SSW of Adak, Alaska · 408 days ago · 26 km deep · 47 km away
  9. 1.799 km SW of Atka, Alaska · 408 days ago · 26 km deep · 80 km away
  10. 1.854 km S of Adak, Alaska · 409 days ago · 26 km deep · 19 km away
  11. 1.960 km SE of Adak, Alaska · 409 days ago · 23 km deep · 26 km away
  12. 3.164 km SE of Adak, Alaska · 409 days ago · 35 km deep · 25 km away
  13. 1.853 km SSE of Adak, Alaska · 409 days ago · 24 km deep · 14 km away
  14. 2.798 km ESE of Adak, Alaska · 409 days ago · 35 km deep · 77 km away
  15. 1.563 km SE of Adak, Alaska · 410 days ago · 26 km deep · 30 km away
  16. 2.562 km SSW of Adak, Alaska · 410 days ago · 43 km deep · 57 km away
  17. 1.663 km SE of Adak, Alaska · 410 days ago · 26 km deep · 16 km away
  18. 1.783 km SW of Adak, Alaska · 410 days ago · 39 km deep · 94 km away
  19. 1.862 km SE of Adak, Alaska · 410 days ago · 26 km deep · 30 km away
  20. 3.154 km SE of Adak, Alaska · 410 days ago · 35 km deep · 20 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak025asvrvyc. Read Fri, Oct 2, 2026, 7:22 PM UTC.