Alaska earthquakes

M2.6 earthquake 48 km ENE of Adak, Alaska

A magnitude 2.6 earthquake struck 48 km ENE of Adak, Alaska on Sun, Apr 27, 2025, 8:56 PM HADT (05:56 UTC), 126 km (79 mi) below the surface.

A larger quake followed: M4.9 45 km W 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
2.6 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-04-28 05:56:28 UTC
Depth
126.5 km (78.6 mi), intermediate-depth
Epicenter
52.067° N, 175.999° 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
2.6ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.128 · 8 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 13.8 km horizontally, 3.2 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
122°
Stations used
20

Nearby

Within 100 km, magnitude 1.5 and up: 168 in the 60 days after this one and 119 in the 30 days before it.

After

  1. 2.783 km SSE of Adak, Alaska · 525 days ago · 30 km deep · 99 km away
  2. 2.656 km S of Adak, Alaska · 525 days ago · 35 km deep · 91 km away
  3. 1.865 km ESE of Adak, Alaska · 525 days ago · 28 km deep · 57 km away
  4. 2.857 km WSW of Atka, Alaska · 524 days ago · 70 km deep · 71 km away
  5. 3.651 km SSE of Adak, Alaska · 524 days ago · 35 km deep · 77 km away
  6. 2.846 km SSW of Adak, Alaska · 523 days ago · 32 km deep · 91 km away
  7. 1.863 km SSE of Adak, Alaska · 522 days ago · 26 km deep · 78 km away
  8. 1.730 km WNW of Atka, Alaska · 522 days ago · 14 km deep · 96 km away
  9. 2.562 km SE of Adak, Alaska · 522 days ago · 35 km deep · 64 km away
  10. 2.141 km S of Adak, Alaska · 521 days ago · 32 km deep · 80 km away
  11. 1.841 km SW of Adak, Alaska · 520 days ago · 50 km deep · 89 km away
  12. 2.157 km SSW of Adak, Alaska · 519 days ago · 46 km deep · 99 km away
  13. 2.3100 km ESE of Adak, Alaska · 519 days ago · 26 km deep · 79 km away
  14. 3.453 km WSW of Atka, Alaska · 518 days ago · 82 km deep · 73 km away
  15. 2.062 km SW of Atka, Alaska · 518 days ago · 49 km deep · 82 km away
  16. 2.727 km E of Adak, Alaska · 518 days ago · 78 km deep · 27 km away
  17. 4.471 km SSE of Adak, Alaska · 518 days ago · 30 km deep · 86 km away · felt by 1
  18. 1.843 km SSE of Adak, Alaska · 518 days ago · 33 km deep · 63 km away
  19. 2.617 km SSE of Adak, Alaska · 517 days ago · 69 km deep · 51 km away
  20. 2.694 km ESE of Adak, Alaska · 517 days ago · 35 km deep · 78 km away
  21. 2.175 km SW of Atka, Alaska · 516 days ago · 26 km deep · 90 km away
  22. 3.167 km SE of Adak, Alaska · 516 days ago · 35 km deep · 74 km away
  23. 1.958 km SE of Adak, Alaska · 516 days ago · 25 km deep · 69 km away
  24. 1.819 km W of Adak, Alaska · 515 days ago · 9 km deep · 67 km away
  25. 3.774 km SW of Atka, Alaska · 515 days ago · 35 km deep · 90 km away
  26. 1.645 km SSE of Adak, Alaska · 514 days ago · 24 km deep · 63 km away
  27. 1.963 km SE of Adak, Alaska · 514 days ago · 14 km deep · 74 km away
  28. 1.960 km SE of Adak, Alaska · 513 days ago · 23 km deep · 69 km away
  29. 3.764 km ESE of Adak, Alaska · 513 days ago · 35 km deep · 57 km away
  30. 1.860 km SSE of Adak, Alaska · 513 days ago · 23 km deep · 81 km away
  31. 1.842 km SSE of Adak, Alaska · 513 days ago · 36 km deep · 62 km away
  32. 1.846 km WSW of Adak, Alaska · 513 days ago · 65 km deep · 95 km away
  33. 1.871 km SE of Adak, Alaska · 513 days ago · 21 km deep · 70 km away
  34. 1.848 km W of Atka, Alaska · 513 days ago · 78 km deep · 75 km away
  35. 2.444 km NNW of Adak, Alaska · 512 days ago · 183 km deep · 57 km away
  36. 2.973 km NNE of Adak, Alaska · 512 days ago · 201 km deep · 50 km away
  37. 2.777 km ESE of Adak, Alaska · 512 days ago · 60 km deep · 56 km away
  38. 2.151 km NE of Adak, Alaska · 511 days ago · 23 km deep · 12 km away
  39. 4.162 km WSW of Atka, Alaska · 510 days ago · 75 km deep · 62 km away
  40. 1.967 km SW of Atka, Alaska · 509 days ago · 47 km deep · 74 km away
  41. 1.638 km E of Adak, Alaska · 508 days ago · 8 km deep · 25 km away
  42. 2.356 km SSE of Adak, Alaska · 508 days ago · 28 km deep · 70 km away
  43. 2.067 km SSE of Adak, Alaska · 507 days ago · 22 km deep · 88 km away
  44. 2.543 km S of Adak, Alaska · 507 days ago · 35 km deep · 77 km away
  45. 1.861 km SE of Adak, Alaska · 507 days ago · 23 km deep · 72 km away
  46. 1.762 km SE of Adak, Alaska · 507 days ago · 26 km deep · 65 km away
  47. 1.613 km SSE of Adak, Alaska · 507 days ago · 75 km deep · 50 km away
  48. 2.084 km ENE of Adak, Alaska · 506 days ago · 99 km deep · 36 km away
  49. 2.258 km SE of Adak, Alaska · 506 days ago · 29 km deep · 60 km away
  50. 1.767 km SE of Adak, Alaska · 506 days ago · 24 km deep · 68 km away
  51. 1.653 km S of Adak, Alaska · 506 days ago · 26 km deep · 88 km away
  52. 1.684 km E of Adak, Alaska · 505 days ago · 77 km deep · 41 km away
  53. 1.886 km SE of Adak, Alaska · 505 days ago · 26 km deep · 75 km away
  54. 1.680 km ENE of Adak, Alaska · 505 days ago · 73 km deep · 35 km away
  55. 1.725 km SE of Adak, Alaska · 505 days ago · 63 km deep · 45 km away
  56. 2.953 km SSE of Adak, Alaska · 505 days ago · 35 km deep · 73 km away
  57. 2.263 km NE of Adak, Alaska · 504 days ago · 192 km deep · 21 km away
  58. 2.045 km NE of Adak, Alaska · 504 days ago · 131 km deep · 8 km away
  59. 2.396 km WNW of Atka, Alaska · 504 days ago · 220 km deep · 61 km away
  60. 1.894 km SW of Atka, Alaska · 503 days ago · 18 km deep · 79 km away

The first 60 of 168.

Before

  1. 1.750 km W of Atka, Alaska · 526 days ago · 18 km deep · 73 km away
  2. 2.686 km E of Adak, Alaska · 526 days ago · 67 km deep · 51 km away
  3. 2.884 km SE of Adak, Alaska · 526 days ago · 35 km deep · 78 km away
  4. 1.641 km SSW of Adak, Alaska · 527 days ago · 28 km deep · 87 km away
  5. 2.297 km SW of Atka, Alaska · 528 days ago · 26 km deep · 75 km away
  6. 1.844 km WSW of Adak, Alaska · 528 days ago · 62 km deep · 93 km away
  7. 1.958 km SSE of Adak, Alaska · 528 days ago · 19 km deep · 74 km away
  8. 1.866 km SSE of Adak, Alaska · 528 days ago · 22 km deep · 88 km away
  9. 2.366 km SSE of Adak, Alaska · 528 days ago · 24 km deep · 77 km away
  10. 2.057 km WSW of Atka, Alaska · 528 days ago · 74 km deep · 73 km away
  11. 2.987 km W of Atka, Alaska · 528 days ago · 226 km deep · 45 km away
  12. 3.240 km ENE of Adak, Alaska · 529 days ago · 133 km deep · 10 km away
  13. 1.837 km WSW of Atka, Alaska · 529 days ago · 36 km deep · 87 km away
  14. 2.147 km SW of Adak, Alaska · 530 days ago · 55 km deep · 92 km away
  15. 2.049 km SSE of Adak, Alaska · 530 days ago · 44 km deep · 65 km away
  16. 1.952 km SW of Adak, Alaska · 530 days ago · 46 km deep · 98 km away
  17. 3.814 km SSE of Adak, Alaska · 530 days ago · 77 km deep · 52 km away
  18. 2.137 km ESE of Adak, Alaska · 530 days ago · 66 km deep · 35 km away
  19. 1.664 km SE of Adak, Alaska · 531 days ago · 24 km deep · 75 km away
  20. 2.060 km ESE of Adak, Alaska · 531 days ago · 44 km deep · 54 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000pvtn (also filed as ak0255f8q6o3). Read Mon, Oct 5, 2026, 8:27 AM UTC.