Alaska earthquakes

M1.5 earthquake 49 km W of False Pass, Alaska

A magnitude 1.5 earthquake struck 49 km W of False Pass, Alaska on Sun, Sep 21, 2025, 9:04 PM AKDT (05:04 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M3.8 36 km NNE of False Pass, 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
1.5 (ML, local (Richter)), micro
Magnitude from
AV
Local time
UTC
2025-09-22 05:04:20 UTC
Depth
15.8 km (9.8 mi), shallow
Epicenter
54.794° N, 164.174° 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 2.8 km horizontally, 2.4 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
311°, poorly surrounded by stations
Stations used
4

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 19 in the 30 days before it.

After

  1. 2.046 km WNW of False Pass, Alaska · 377 days ago · 13 km deep · 25 km away
  2. 1.551 km WSW of False Pass, Alaska · 377 days ago · 19 km deep · 3 km away
  3. 2.036 km ESE of False Pass, Alaska · 376 days ago · -2 km deep · 83 km away
  4. 1.617 km SW of False Pass, Alaska · 363 days ago · 3 km deep · 35 km away
  5. 1.647 km WSW of False Pass, Alaska · 361 days ago · 9 km deep · 15 km away
  6. 1.817 km SW of False Pass, Alaska · 357 days ago · 0 km deep · 35 km away
  7. 2.260 km S of False Pass, Alaska · 351 days ago · 59 km deep · 79 km away
  8. 1.651 km WSW of False Pass, Alaska · 336 days ago · 28 km deep · 13 km away
  9. 3.836 km NNE of False Pass, Alaska · 336 days ago · 189 km deep · 70 km away
  10. 1.645 km WSW of False Pass, Alaska · 327 days ago · 15 km deep · 12 km away
  11. 1.775 km WSW of False Pass, Alaska · 326 days ago · 5 km deep · 32 km away
  12. 2.397 km S of False Pass, Alaska · 325 days ago · 35 km deep · 98 km away
  13. 2.5105 km ESE of Akutan, Alaska · 325 days ago · 10 km deep · 98 km away
  14. 1.547 km WSW of False Pass, Alaska · 325 days ago · 9 km deep · 14 km away
  15. 1.543 km WSW of False Pass, Alaska · 324 days ago · 13 km deep · 12 km away
  16. 1.644 km WSW of False Pass, Alaska · 321 days ago · 6 km deep · 16 km away
  17. 2.7106 km SSW of False Pass, Alaska · 319 days ago · 23 km deep · 98 km away
  18. 2.760 km SE of False Pass, Alaska · 318 days ago · 56 km deep · 96 km away
  19. 2.734 km SW of False Pass, Alaska · 318 days ago · 112 km deep · 25 km away

Before

  1. 1.851 km W of False Pass, Alaska · 379 days ago · 15 km deep · 6 km away
  2. 1.549 km WSW of False Pass, Alaska · 381 days ago · 7 km deep · 5 km away
  3. 1.658 km WSW of False Pass, Alaska · 382 days ago · 8 km deep · 20 km away
  4. 1.513 km S of False Pass, Alaska · 383 days ago · 6 km deep · 51 km away
  5. 2.027 km SSW of False Pass, Alaska · 385 days ago · 3 km deep · 42 km away
  6. 2.235 km SSW of False Pass, Alaska · 388 days ago · 12 km deep · 51 km away
  7. 2.327 km S of False Pass, Alaska · 391 days ago · 7 km deep · 57 km away
  8. 2.033 km S of False Pass, Alaska · 396 days ago · 80 km deep · 61 km away
  9. 1.893 km ESE of Akutan, Alaska · 397 days ago · 47 km deep · 95 km away
  10. 2.630 km NW of False Pass, Alaska · 397 days ago · 150 km deep · 45 km away
  11. 2.226 km E of False Pass, Alaska · 398 days ago · 94 km deep · 75 km away
  12. 2.088 km S of False Pass, Alaska · 398 days ago · 24 km deep · 87 km away
  13. 2.650 km ESE of False Pass, Alaska · 400 days ago · 63 km deep · 95 km away
  14. 2.652 km S of False Pass, Alaska · 400 days ago · 65 km deep · 61 km away
  15. 3.235 km WNW of Cold Bay, Alaska · 400 days ago · 198 km deep · 79 km away
  16. 1.923 km SSW of False Pass, Alaska · 403 days ago · 10 km deep · 47 km away
  17. 2.1109 km NNE of Akutan, Alaska · 406 days ago · 175 km deep · 81 km away
  18. 1.577 km S of False Pass, Alaska · 406 days ago · 23 km deep · 85 km away
  19. 1.698 km SSW of False Pass, Alaska · 406 days ago · 42 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event av93784783. Read Sun, Oct 4, 2026, 1:00 PM UTC.