Alaska earthquakes

M2.8 earthquake 94 km SSE of Adak, Alaska

A magnitude 2.8 earthquake struck 94 km SSE of Adak, Alaska on Tue, Aug 26, 2025, 12:21 AM HADT (09:21 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.

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
2.8 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-08-26 09:21:07 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
51.085° N, 176.130° 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
2.8ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.085 · 18 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 4.3 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.09
Depth from
Operator assigned
Station coverage gap
213°, poorly surrounded by stations
Stations used
25

Nearby

Within 100 km, magnitude 1.5 and up: 39 in the 60 days after this one and 112 in the 30 days before it.

After

  1. 2.9101 km SSE of Adak, Alaska · 402 days ago · 13 km deep · 7 km away
  2. 3.388 km SSE of Adak, Alaska · 402 days ago · 24 km deep · 6 km away
  3. 3.4105 km SSE of Adak, Alaska · 402 days ago · 12 km deep · 13 km away
  4. 1.891 km SSE of Adak, Alaska · 402 days ago · 25 km deep · 3 km away
  5. 1.884 km SSE of Adak, Alaska · 402 days ago · 18 km deep · 10 km away
  6. 1.967 km SSW of Adak, Alaska · 402 days ago · 33 km deep · 66 km away
  7. 3.253 km SE of Adak, Alaska · 401 days ago · 35 km deep · 52 km away
  8. 2.698 km SSE of Adak, Alaska · 401 days ago · 10 km deep · 4 km away
  9. 2.96 km SSE of Adak, Alaska · 401 days ago · 75 km deep · 88 km away
  10. 2.290 km SSE of Adak, Alaska · 400 days ago · 13 km deep · 6 km away
  11. 2.799 km SSE of Adak, Alaska · 400 days ago · 33 km deep · 7 km away
  12. 2.094 km SSE of Adak, Alaska · 400 days ago · 26 km deep · 1 km away
  13. 1.989 km SW of Atka, Alaska · 400 days ago · 41 km deep · 94 km away
  14. 1.642 km SSE of Adak, Alaska · 400 days ago · 36 km deep · 53 km away
  15. 1.756 km SE of Adak, Alaska · 400 days ago · 25 km deep · 42 km away
  16. 2.7105 km SW of Atka, Alaska · 398 days ago · 35 km deep · 82 km away
  17. 2.147 km SE of Adak, Alaska · 397 days ago · 37 km deep · 52 km away
  18. 2.031 km SSW of Adak, Alaska · 396 days ago · 63 km deep · 74 km away
  19. 1.953 km SSE of Adak, Alaska · 395 days ago · 56 km deep · 43 km away
  20. 1.953 km SE of Adak, Alaska · 395 days ago · 56 km deep · 50 km away
  21. 2.740 km SW of Adak, Alaska · 395 days ago · 77 km deep · 95 km away
  22. 2.773 km SSE of Adak, Alaska · 394 days ago · 25 km deep · 26 km away
  23. 2.582 km ESE of Adak, Alaska · 394 days ago · 50 km deep · 72 km away
  24. 3.8110 km SSW of Adak, Alaska · 392 days ago · 8 km deep · 75 km away
  25. 1.622 km E of Adak, Alaska · 379 days ago · 6 km deep · 92 km away
  26. 4.095 km SSE of Adak, Alaska · 373 days ago · 10 km deep · 10 km away · felt by 1
  27. 1.850 km SW of Adak, Alaska · 370 days ago · 15 km deep · 89 km away
  28. 1.866 km SSE of Adak, Alaska · 370 days ago · 21 km deep · 28 km away
  29. 2.066 km SE of Adak, Alaska · 370 days ago · 26 km deep · 36 km away
  30. 3.983 km SW of Atka, Alaska · 369 days ago · 35 km deep · 98 km away
  31. 3.8103 km S of Adak, Alaska · 369 days ago · 10 km deep · 56 km away
  32. 1.651 km SW of Adak, Alaska · 368 days ago · 14 km deep · 96 km away
  33. 2.757 km SSW of Adak, Alaska · 362 days ago · 34 km deep · 61 km away
  34. 4.4100 km SW of Atka, Alaska · 359 days ago · 35 km deep · 82 km away
  35. 2.672 km SE of Adak, Alaska · 349 days ago · 35 km deep · 31 km away
  36. 2.454 km SW of Adak, Alaska · 349 days ago · 36 km deep · 81 km away
  37. 1.989 km ESE of Adak, Alaska · 349 days ago · 19 km deep · 68 km away
  38. 4.971 km SSW of Adak, Alaska · 347 days ago · 37 km deep · 70 km away · felt by 2
  39. 1.810 km NE of Adak, Alaska · 343 days ago · 28 km deep · 99 km away

Before

  1. 2.692 km SSE of Adak, Alaska · 402 days ago · 10 km deep · 5 km away
  2. 2.6107 km SSE of Adak, Alaska · 402 days ago · 10 km deep · 14 km away
  3. 2.191 km SSE of Adak, Alaska · 402 days ago · 15 km deep · 5 km away
  4. 1.891 km SSE of Adak, Alaska · 402 days ago · 17 km deep · 4 km away
  5. 2.596 km SSE of Adak, Alaska · 402 days ago · 10 km deep · 2 km away
  6. 1.846 km SSE of Adak, Alaska · 403 days ago · 29 km deep · 48 km away
  7. 1.962 km SE of Adak, Alaska · 403 days ago · 26 km deep · 49 km away
  8. 3.088 km SSE of Adak, Alaska · 403 days ago · 20 km deep · 6 km away
  9. 3.775 km SW of Adak, Alaska · 404 days ago · 40 km deep · 94 km away
  10. 2.565 km S of Adak, Alaska · 404 days ago · 35 km deep · 52 km away
  11. 1.964 km SE of Adak, Alaska · 404 days ago · 24 km deep · 35 km away
  12. 1.962 km SSE of Adak, Alaska · 404 days ago · 24 km deep · 35 km away
  13. 1.962 km SE of Adak, Alaska · 404 days ago · 23 km deep · 40 km away
  14. 1.866 km SSE of Adak, Alaska · 405 days ago · 23 km deep · 28 km away
  15. 2.193 km ESE of Adak, Alaska · 405 days ago · 42 km deep · 88 km away
  16. 1.954 km SSE of Adak, Alaska · 405 days ago · 26 km deep · 42 km away
  17. 3.093 km SW of Atka, Alaska · 405 days ago · 35 km deep · 89 km away
  18. 2.665 km SSE of Adak, Alaska · 405 days ago · 35 km deep · 33 km away
  19. 3.468 km SW of Adak, Alaska · 408 days ago · 60 km deep · 95 km away
  20. 2.0171 km S of Adak, Alaska · 408 days ago · 10 km deep · 83 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000rlhh (also filed as ak025axre0ou). Read Fri, Oct 2, 2026, 9:49 AM UTC.