Alaska earthquakes

M1.7 earthquake 110 km E of Nikolski, Alaska

A magnitude 1.7 earthquake struck 110 km E of Nikolski, Alaska on Sat, Aug 23, 2025, 2:34 PM AKDT (22:34 UTC), 38 km (24 mi) below the surface.

A larger quake followed: M3.8 38 km NNE of Nikolski, 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
1.7 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2025-08-23 22:34:58 UTC
Depth
37.9 km (23.5 mi), shallow
Epicenter
52.884° N, 167.228° 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
23

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 58 in the 30 days before it.

After

  1. 1.587 km SSW of Unalaska, Alaska · 403 days ago · 26 km deep · 35 km away
  2. 1.860 km SSE of Unalaska, Alaska · 402 days ago · 53 km deep · 91 km away
  3. 1.630 km SSW of Unalaska, Alaska · 401 days ago · 78 km deep · 89 km away
  4. 1.850 km SW of Unalaska, Alaska · 400 days ago · 18 km deep · 75 km away
  5. 2.2138 km ESE of Nikolski, Alaska · 400 days ago · 7 km deep · 64 km away
  6. 2.3103 km E of Nikolski, Alaska · 397 days ago · 47 km deep · 9 km away
  7. 2.593 km WSW of Unalaska, Alaska · 396 days ago · 100 km deep · 81 km away
  8. 2.1144 km ESE of Nikolski, Alaska · 394 days ago · 6 km deep · 55 km away
  9. 1.935 km ESE of Nikolski, Alaska · 394 days ago · 61 km deep · 77 km away
  10. 1.933 km SW of Unalaska, Alaska · 394 days ago · 75 km deep · 87 km away
  11. 2.755 km SW of Unalaska, Alaska · 394 days ago · 17 km deep · 69 km away
  12. 3.237 km SSE of Nikolski, Alaska · 391 days ago · 37 km deep · 97 km away
  13. 3.838 km NNE of Nikolski, Alaska · 386 days ago · 94 km deep · 99 km away
  14. 3.333 km ESE of Nikolski, Alaska · 382 days ago · 52 km deep · 77 km away
  15. 1.753 km SW of Unalaska, Alaska · 369 days ago · 15 km deep · 79 km away
  16. 3.789 km E of Nikolski, Alaska · 366 days ago · 82 km deep · 27 km away
  17. 2.355 km ESE of Nikolski, Alaska · 351 days ago · 23 km deep · 60 km away
  18. 3.070 km ESE of Nikolski, Alaska · 351 days ago · 35 km deep · 45 km away
  19. 2.8101 km S of Unalaska, Alaska · 348 days ago · 35 km deep · 51 km away

Before

  1. 2.674 km SSE of Unalaska, Alaska · 404 days ago · 35 km deep · 75 km away
  2. 2.7113 km SE of Nikolski, Alaska · 405 days ago · 14 km deep · 59 km away
  3. 1.7110 km ESE of Nikolski, Alaska · 405 days ago · 11 km deep · 45 km away
  4. 1.874 km ESE of Nikolski, Alaska · 405 days ago · 25 km deep · 44 km away
  5. 1.916 km ENE of Nikolski, Alaska · 407 days ago · 31 km deep · 96 km away
  6. 1.781 km SSE of Unalaska, Alaska · 408 days ago · 21 km deep · 85 km away
  7. 1.876 km S of Unalaska, Alaska · 408 days ago · 50 km deep · 48 km away
  8. 2.634 km SW of Unalaska, Alaska · 409 days ago · 79 km deep · 90 km away
  9. 1.7101 km SSW of Unalaska, Alaska · 409 days ago · 32 km deep · 28 km away
  10. 1.596 km SSW of Unalaska, Alaska · 409 days ago · 26 km deep · 23 km away
  11. 1.6106 km ESE of Nikolski, Alaska · 409 days ago · 2 km deep · 29 km away
  12. 1.593 km SSW of Unalaska, Alaska · 409 days ago · 26 km deep · 26 km away
  13. 1.554 km SW of Unalaska, Alaska · 410 days ago · 16 km deep · 75 km away
  14. 1.984 km SSW of Unalaska, Alaska · 410 days ago · 28 km deep · 38 km away
  15. 3.469 km NE of Nikolski, Alaska · 410 days ago · 121 km deep · 86 km away
  16. 1.635 km SSW of Unalaska, Alaska · 412 days ago · 71 km deep · 85 km away
  17. 1.991 km SSW of Unalaska, Alaska · 412 days ago · 31 km deep · 29 km away
  18. 2.049 km SW of Unalaska, Alaska · 413 days ago · 17 km deep · 74 km away
  19. 1.950 km SW of Unalaska, Alaska · 414 days ago · 13 km deep · 72 km away
  20. 1.749 km SW of Unalaska, Alaska · 414 days ago · 19 km deep · 76 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak025at0libd. Read Thu, Oct 1, 2026, 12:20 PM UTC.