Alaska earthquakes

M2.6 earthquake 107 km SSE of Adak, Alaska

A magnitude 2.6 earthquake struck 107 km SSE of Adak, Alaska on Mon, Aug 25, 2025, 11:37 PM HADT (08:37 UTC), 10 km (6 mi) below the surface.

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

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Map

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
2025-08-26 08:37:07 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.962° N, 176.136° 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 · ±0.097 · 17 stations
2.5ML, 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 4.4 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
235°, poorly surrounded by stations
Stations used
16

Nearby

Within 100 km, magnitude 1.5 and up: 34 in the 60 days after this one and 107 in the 30 days before it.

After

  1. 2.692 km SSE of Adak, Alaska · 402 days ago · 10 km deep · 15 km away
  2. 2.894 km SSE of Adak, Alaska · 402 days ago · 10 km deep · 14 km away
  3. 2.9101 km SSE of Adak, Alaska · 402 days ago · 13 km deep · 8 km away
  4. 3.388 km SSE of Adak, Alaska · 402 days ago · 24 km deep · 19 km away
  5. 3.4105 km SSE of Adak, Alaska · 402 days ago · 12 km deep · 3 km away
  6. 1.891 km SSE of Adak, Alaska · 402 days ago · 25 km deep · 16 km away
  7. 1.884 km SSE of Adak, Alaska · 402 days ago · 18 km deep · 23 km away
  8. 1.967 km SSW of Adak, Alaska · 402 days ago · 33 km deep · 72 km away
  9. 3.253 km SE of Adak, Alaska · 401 days ago · 35 km deep · 65 km away
  10. 2.698 km SSE of Adak, Alaska · 401 days ago · 10 km deep · 10 km away
  11. 2.290 km SSE of Adak, Alaska · 400 days ago · 13 km deep · 17 km away
  12. 2.799 km SSE of Adak, Alaska · 400 days ago · 33 km deep · 8 km away
  13. 2.094 km SSE of Adak, Alaska · 400 days ago · 26 km deep · 13 km away
  14. 1.642 km SSE of Adak, Alaska · 400 days ago · 36 km deep · 66 km away
  15. 1.756 km SE of Adak, Alaska · 400 days ago · 25 km deep · 56 km away
  16. 2.7105 km SW of Atka, Alaska · 398 days ago · 35 km deep · 89 km away
  17. 2.147 km SE of Adak, Alaska · 398 days ago · 37 km deep · 66 km away
  18. 2.031 km SSW of Adak, Alaska · 396 days ago · 63 km deep · 85 km away
  19. 1.953 km SSE of Adak, Alaska · 395 days ago · 56 km deep · 56 km away
  20. 1.953 km SE of Adak, Alaska · 395 days ago · 56 km deep · 64 km away
  21. 2.773 km SSE of Adak, Alaska · 394 days ago · 25 km deep · 39 km away
  22. 2.582 km ESE of Adak, Alaska · 394 days ago · 50 km deep · 83 km away
  23. 3.8110 km SSW of Adak, Alaska · 392 days ago · 8 km deep · 73 km away
  24. 4.095 km SSE of Adak, Alaska · 373 days ago · 10 km deep · 20 km away · felt by 1
  25. 1.850 km SW of Adak, Alaska · 370 days ago · 15 km deep · 98 km away
  26. 1.866 km SSE of Adak, Alaska · 370 days ago · 21 km deep · 41 km away
  27. 2.066 km SE of Adak, Alaska · 370 days ago · 26 km deep · 50 km away
  28. 3.8103 km S of Adak, Alaska · 369 days ago · 10 km deep · 54 km away
  29. 2.757 km SSW of Adak, Alaska · 362 days ago · 34 km deep · 69 km away
  30. 4.4100 km SW of Atka, Alaska · 359 days ago · 35 km deep · 92 km away
  31. 2.672 km SE of Adak, Alaska · 349 days ago · 35 km deep · 44 km away
  32. 2.454 km SW of Adak, Alaska · 349 days ago · 36 km deep · 88 km away
  33. 1.989 km ESE of Adak, Alaska · 349 days ago · 19 km deep · 78 km away
  34. 4.971 km SSW of Adak, Alaska · 347 days ago · 37 km deep · 75 km away · felt by 2

Before

  1. 2.191 km SSE of Adak, Alaska · 402 days ago · 15 km deep · 15 km away
  2. 1.891 km SSE of Adak, Alaska · 402 days ago · 17 km deep · 16 km away
  3. 2.596 km SSE of Adak, Alaska · 402 days ago · 10 km deep · 12 km away
  4. 1.846 km SSE of Adak, Alaska · 403 days ago · 29 km deep · 61 km away
  5. 1.962 km SE of Adak, Alaska · 403 days ago · 26 km deep · 62 km away
  6. 3.088 km SSE of Adak, Alaska · 404 days ago · 20 km deep · 19 km away
  7. 3.775 km SW of Adak, Alaska · 404 days ago · 40 km deep · 100 km away
  8. 2.565 km S of Adak, Alaska · 404 days ago · 35 km deep · 60 km away
  9. 1.964 km SE of Adak, Alaska · 404 days ago · 24 km deep · 48 km away
  10. 1.962 km SSE of Adak, Alaska · 405 days ago · 24 km deep · 49 km away
  11. 1.962 km SE of Adak, Alaska · 405 days ago · 23 km deep · 54 km away
  12. 1.866 km SSE of Adak, Alaska · 405 days ago · 23 km deep · 40 km away
  13. 2.193 km ESE of Adak, Alaska · 405 days ago · 42 km deep · 99 km away
  14. 1.954 km SSE of Adak, Alaska · 405 days ago · 26 km deep · 54 km away
  15. 3.093 km SW of Atka, Alaska · 406 days ago · 35 km deep · 98 km away
  16. 2.665 km SSE of Adak, Alaska · 406 days ago · 35 km deep · 46 km away
  17. 2.0171 km S of Adak, Alaska · 408 days ago · 10 km deep · 69 km away
  18. 1.569 km SSW of Adak, Alaska · 408 days ago · 26 km deep · 67 km away
  19. 1.799 km SW of Atka, Alaska · 408 days ago · 26 km deep · 92 km away
  20. 1.854 km S of Adak, Alaska · 409 days ago · 26 km deep · 54 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000rlhg (also filed as ak025axqw0np). Read Fri, Oct 2, 2026, 3:03 PM UTC.