Alaska earthquakes

M3.5 earthquake 112 km SSE of False Pass, Alaska

A magnitude 3.5 earthquake struck 112 km SSE of False Pass, Alaska on Fri, Aug 15, 2025, 8:21 PM AKDT (04:21 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.0 125 km SSW of False Pass, Alaska. This one was a foreshock.

King Cove forecastMore in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.5 (ml), minor
Local time
UTC
2025-08-16 04:21:02 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
53.868° N, 163.011° W
Region
Alaska
Strongest shaking
II, weak shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
II, weak shaking
Peak ground acceleration
0.1% of gravity
Peak ground velocity
0.0 cm/s
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

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
195°, poorly surrounded by stations
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 32 in the 60 days after this one and 84 in the 30 days before it.

After

  1. 1.8111 km SSW of False Pass, Alaska · 408 days ago · 17 km deep · 65 km away
  2. 1.983 km SE of False Pass, Alaska · 406 days ago · 14 km deep · 56 km away
  3. 2.091 km S of False Pass, Alaska · 406 days ago · 21 km deep · 41 km away
  4. 2.2162 km ESE of Akutan, Alaska · 406 days ago · 14 km deep · 67 km away
  5. 1.795 km ESE of Akutan, Alaska · 403 days ago · 28 km deep · 95 km away
  6. 2.083 km SSE of False Pass, Alaska · 403 days ago · 26 km deep · 29 km away
  7. 2.1154 km S of False Pass, Alaska · 403 days ago · 26 km deep · 62 km away
  8. 1.7108 km ESE of Akutan, Alaska · 402 days ago · 32 km deep · 79 km away
  9. 1.7108 km ESE of Akutan, Alaska · 402 days ago · 15 km deep · 81 km away
  10. 2.0133 km S of False Pass, Alaska · 402 days ago · 26 km deep · 28 km away
  11. 1.698 km SSW of False Pass, Alaska · 402 days ago · 42 km deep · 77 km away
  12. 1.577 km S of False Pass, Alaska · 401 days ago · 23 km deep · 43 km away
  13. 2.8127 km ESE of Akutan, Alaska · 401 days ago · 35 km deep · 68 km away
  14. 3.475 km SSE of False Pass, Alaska · 399 days ago · 35 km deep · 45 km away
  15. 1.923 km SSW of False Pass, Alaska · 398 days ago · 10 km deep · 92 km away
  16. 2.652 km S of False Pass, Alaska · 395 days ago · 65 km deep · 68 km away
  17. 2.650 km ESE of False Pass, Alaska · 395 days ago · 63 km deep · 89 km away
  18. 2.170 km SSW of King Cove, Alaska · 395 days ago · 38 km deep · 70 km away
  19. 2.088 km S of False Pass, Alaska · 393 days ago · 24 km deep · 48 km away
  20. 2.373 km SSE of King Cove, Alaska · 393 days ago · 13 km deep · 93 km away
  21. 1.947 km S of King Cove, Alaska · 393 days ago · 58 km deep · 94 km away
  22. 1.893 km ESE of Akutan, Alaska · 393 days ago · 47 km deep · 91 km away
  23. 1.885 km ESE of Akutan, Alaska · 392 days ago · 48 km deep · 100 km away
  24. 2.033 km S of False Pass, Alaska · 392 days ago · 80 km deep · 79 km away
  25. 2.2108 km ESE of Akutan, Alaska · 392 days ago · 26 km deep · 85 km away
  26. 2.463 km S of King Cove, Alaska · 392 days ago · 75 km deep · 85 km away
  27. 2.327 km S of False Pass, Alaska · 387 days ago · 7 km deep · 86 km away
  28. 2.235 km SSW of False Pass, Alaska · 384 days ago · 12 km deep · 82 km away
  29. 2.027 km SSW of False Pass, Alaska · 380 days ago · 3 km deep · 92 km away
  30. 1.513 km S of False Pass, Alaska · 379 days ago · 6 km deep · 99 km away
  31. 2.036 km ESE of False Pass, Alaska · 371 days ago · -2 km deep · 98 km away
  32. 4.0125 km SSW of False Pass, Alaska · 354 days ago · 10 km deep · 62 km away

Before

  1. 2.8153 km S of False Pass, Alaska · 410 days ago · 25 km deep · 62 km away
  2. 2.140 km S of False Pass, Alaska · 411 days ago · 12 km deep · 72 km away
  3. 2.5162 km S of False Pass, Alaska · 412 days ago · 17 km deep · 65 km away
  4. 2.2150 km S of False Pass, Alaska · 412 days ago · 25 km deep · 58 km away
  5. 2.051 km SSW of False Pass, Alaska · 412 days ago · 19 km deep · 70 km away
  6. 1.982 km SE of False Pass, Alaska · 412 days ago · 12 km deep · 59 km away
  7. 2.6160 km ESE of Akutan, Alaska · 412 days ago · 30 km deep · 69 km away
  8. 3.3159 km S of False Pass, Alaska · 413 days ago · 35 km deep · 62 km away
  9. 2.9157 km S of False Pass, Alaska · 413 days ago · 10 km deep · 62 km away
  10. 2.7162 km S of False Pass, Alaska · 413 days ago · 10 km deep · 64 km away
  11. 2.8160 km S of False Pass, Alaska · 413 days ago · 10 km deep · 65 km away
  12. 2.579 km S of King Cove, Alaska · 413 days ago · 35 km deep · 67 km away
  13. 3.0163 km S of False Pass, Alaska · 413 days ago · 10 km deep · 65 km away
  14. 3.2158 km S of False Pass, Alaska · 413 days ago · 10 km deep · 63 km away
  15. 3.6162 km S of False Pass, Alaska · 413 days ago · 11 km deep · 64 km away
  16. 3.6161 km S of False Pass, Alaska · 413 days ago · 26 km deep · 63 km away
  17. 3.2156 km S of False Pass, Alaska · 413 days ago · 10 km deep · 62 km away
  18. 2.6159 km S of False Pass, Alaska · 414 days ago · 10 km deep · 63 km away
  19. 3.1155 km ESE of Akutan, Alaska · 414 days ago · 35 km deep · 66 km away
  20. 2.7152 km S of False Pass, Alaska · 414 days ago · 35 km deep · 63 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000r1jp (also filed as ak025ah51d2o). Read Tue, Sep 29, 2026, 9:33 PM UTC.