Alaska earthquakes

M3.5 earthquake 84 km SSW of Nikolski, Alaska

A magnitude 3.5 earthquake struck 84 km SSW of Nikolski, Alaska on Thu, Sep 4, 2025, 12:13 PM AKDT (20:13 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M5.4 81 km SSW 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
3.5 (mb, body-wave), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-09-04 20:13:08 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
52.245° N, 169.358° 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.

Location uncertainty
About 9.1 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.15
Depth from
Operator assigned
Station coverage gap
206°, poorly surrounded by stations
Stations used
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 40 in the 30 days before it.

After

  1. 3.237 km SSE of Nikolski, Alaska · 394 days ago · 37 km deep · 67 km away
  2. 3.793 km WSW of Nikolski, Alaska · 392 days ago · 63 km deep · 59 km away
  3. 3.764 km WSW of Nikolski, Alaska · 392 days ago · 52 km deep · 57 km away
  4. 5.481 km SSW of Nikolski, Alaska · 392 days ago · 38 km deep · 12 km away · tsunami flag
  5. 4.487 km SW of Nikolski, Alaska · 392 days ago · 35 km deep · 20 km away
  6. 3.333 km ESE of Nikolski, Alaska · 384 days ago · 52 km deep · 96 km away
  7. 5.1130 km SSW of Nikolski, Alaska · 382 days ago · 27 km deep · 46 km away
  8. 2.055 km SW of Nikolski, Alaska · 379 days ago · 13 km deep · 46 km away
  9. 3.666 km SW of Nikolski, Alaska · 378 days ago · 35 km deep · 38 km away
  10. 2.857 km SW of Nikolski, Alaska · 370 days ago · 10 km deep · 34 km away
  11. 1.861 km WSW of Nikolski, Alaska · 365 days ago · 8 km deep · 70 km away
  12. 1.662 km WSW of Nikolski, Alaska · 365 days ago · 10 km deep · 68 km away
  13. 1.659 km W of Nikolski, Alaska · 365 days ago · 7 km deep · 71 km away
  14. 3.891 km SSE of Nikolski, Alaska · 361 days ago · 29 km deep · 57 km away
  15. 1.775 km WSW of Nikolski, Alaska · 358 days ago · 8 km deep · 63 km away
  16. 2.085 km WSW of Nikolski, Alaska · 352 days ago · 8 km deep · 57 km away
  17. 4.4102 km SSW of Nikolski, Alaska · 349 days ago · 10 km deep · 19 km away
  18. 1.571 km WSW of Nikolski, Alaska · 343 days ago · 10 km deep · 70 km away
  19. 3.8158 km SW of Nikolski, Alaska · 341 days ago · 41 km deep · 95 km away
  20. 1.955 km W of Nikolski, Alaska · 335 days ago · -1 km deep · 85 km away

Before

  1. 5.292 km SSW of Nikolski, Alaska · 394 days ago · 35 km deep · 8 km away · felt by 1 · tsunami flag
  2. 5.294 km SSW of Nikolski, Alaska · 394 days ago · 35 km deep · 11 km away · tsunami flag
  3. 3.880 km SSW of Nikolski, Alaska · 395 days ago · 35 km deep · 8 km away
  4. 3.858 km WSW of Nikolski, Alaska · 395 days ago · 46 km deep · 65 km away
  5. 4.6100 km SSW of Nikolski, Alaska · 395 days ago · 35 km deep · 16 km away
  6. 3.773 km SW of Nikolski, Alaska · 395 days ago · 39 km deep · 23 km away
  7. 4.492 km SSW of Nikolski, Alaska · 395 days ago · 10 km deep · 10 km away
  8. 5.992 km SSW of Nikolski, Alaska · 395 days ago · 18 km deep · 11 km away · felt by 1 · tsunami flag
  9. 4.2114 km SW of Nikolski, Alaska · 395 days ago · 26 km deep · 39 km away
  10. 1.935 km ESE of Nikolski, Alaska · 396 days ago · 61 km deep · 92 km away
  11. 4.1132 km SSW of Nikolski, Alaska · 399 days ago · 17 km deep · 50 km away
  12. 2.145 km SW of Nikolski, Alaska · 401 days ago · 19 km deep · 51 km away
  13. 2.7126 km SW of Nikolski, Alaska · 402 days ago · 35 km deep · 58 km away
  14. 2.758 km S of Nikolski, Alaska · 402 days ago · 35 km deep · 33 km away
  15. 4.3163 km SW of Nikolski, Alaska · 405 days ago · 10 km deep · 85 km away
  16. 2.8106 km S of Nikolski, Alaska · 406 days ago · 10 km deep · 31 km away
  17. 2.788 km SSE of Nikolski, Alaska · 409 days ago · 10 km deep · 62 km away
  18. 1.872 km SSW of Nikolski, Alaska · 409 days ago · 26 km deep · 15 km away
  19. 1.916 km ENE of Nikolski, Alaska · 409 days ago · 31 km deep · 97 km away
  20. 3.489 km SSE of Nikolski, Alaska · 411 days ago · 10 km deep · 74 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000rd83. Read Sat, Oct 3, 2026, 3:13 PM UTC.