Alaska earthquakes

M3.4 earthquake 246 km WSW of Adak, Alaska

A magnitude 3.4 earthquake struck 246 km WSW of Adak, Alaska on Sat, Oct 11, 2025, 5:22 AM GMT-12 (17:22 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.2 199 km WSW of Adak, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude
3.4 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-10-11 17:22:46 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
50.920° N, 179.835° 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 5.2 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.09
Depth from
Operator assigned
Station coverage gap
248°, poorly surrounded by stations
Stations used
8

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 2.8221 km W of Adak, Alaska · 350 days ago · 10 km deep · 78 km away
  2. 2.8206 km W of Adak, Alaska · 349 days ago · 96 km deep · 88 km away
  3. 2.7149 km WSW of Adak, Alaska · 341 days ago · 10 km deep · 97 km away
  4. 2.8194 km WSW of Adak, Alaska · 323 days ago · 35 km deep · 53 km away
  5. 2.9157 km WSW of Adak, Alaska · 318 days ago · 8 km deep · 89 km away
  6. 2.6231 km WSW of Adak, Alaska · 316 days ago · 14 km deep · 24 km away
  7. 3.4246 km WSW of Adak, Alaska · 313 days ago · 47 km deep · 55 km away
  8. 2.9185 km WSW of Adak, Alaska · 310 days ago · 77 km deep · 71 km away
  9. 2.5256 km WSW of Adak, Alaska · 310 days ago · 67 km deep · 67 km away
  10. 2.7276 km W of Adak, Alaska · 310 days ago · 63 km deep · 83 km away
  11. 3.4213 km WSW of Adak, Alaska · 310 days ago · 18 km deep · 39 km away
  12. 2.9223 km WSW of Adak, Alaska · 309 days ago · 10 km deep · 32 km away
  13. 3.7259 km WSW of Adak, Alaska · 308 days ago · 54 km deep · 45 km away
  14. 4.2199 km WSW of Adak, Alaska · 303 days ago · 13 km deep · 51 km away
  15. 2.6154 km WSW of Adak, Alaska · 301 days ago · 59 km deep · 93 km away
  16. 2.7251 km WSW of Adak, Alaska · 299 days ago · 6 km deep · 11 km away
  17. 3.2269 km WSW of Adak, Alaska · 299 days ago · 52 km deep · 60 km away
  18. 2.6228 km WSW of Adak, Alaska · 297 days ago · 10 km deep · 21 km away

Before

  1. 4.5240 km WSW of Adak, Alaska · 356 days ago · 35 km deep · 11 km away
  2. 4.2Rat Islands, Aleutian Islands, Alaska · 362 days ago · 18 km deep · 96 km away
  3. 4.2200 km W of Adak, Alaska · 362 days ago · 79 km deep · 76 km away
  4. 3.2236 km WSW of Adak, Alaska · 363 days ago · 11 km deep · 20 km away
  5. 2.6225 km W of Adak, Alaska · 371 days ago · 84 km deep · 86 km away
  6. 2.6171 km W of Adak, Alaska · 371 days ago · 88 km deep · 98 km away
  7. 2.1164 km WSW of Adak, Alaska · 372 days ago · 16 km deep · 94 km away
  8. 1.9159 km WSW of Adak, Alaska · 377 days ago · 30 km deep · 89 km away
  9. 3.2231 km WSW of Adak, Alaska · 381 days ago · 15 km deep · 62 km away
  10. 4.5261 km W of Adak, Alaska · 384 days ago · 73 km deep · 72 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000rkr2. Read Fri, Oct 2, 2026, 12:54 PM UTC.