Alaska earthquakes

M1.9 earthquake 258 km W of Adak, Alaska

A magnitude 1.9 earthquake struck 258 km W of Adak, Alaska on Wed, Oct 1, 2025, 12:14 PM GMT+12 (00:14 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M4.3 299 km W 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
1.9 (ML, local (Richter)), micro
Magnitude from
AV
Local time
UTC
2025-10-01 00:14:25 UTC
Depth
9.3 km (5.8 mi), shallow
Epicenter
51.897° N, 179.606° E
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 1.3 km horizontally, 1.6 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
197°, poorly surrounded by stations
Stations used
5

Nearby

Within 100 km, magnitude 1.5 and up: 25 in the 60 days after this one and 19 in the 30 days before it.

After

  1. 3.2236 km WSW of Adak, Alaska · 365 days ago · 11 km deep · 98 km away
  2. 4.2200 km W of Adak, Alaska · 365 days ago · 79 km deep · 71 km away
  3. 3.8253 km W of Adak, Alaska · 365 days ago · 173 km deep · 28 km away
  4. 1.7260 km W of Adak, Alaska · 358 days ago · 8 km deep · 2 km away
  5. 1.9259 km W of Adak, Alaska · 356 days ago · 7 km deep · 10 km away
  6. 2.8221 km W of Adak, Alaska · 353 days ago · 10 km deep · 50 km away
  7. 2.8206 km W of Adak, Alaska · 352 days ago · 96 km deep · 58 km away
  8. 4.0Rat Islands, Aleutian Islands, Alaska · 339 days ago · 77 km deep · 86 km away
  9. 1.5163 km W of Adak, Alaska · 337 days ago · 6 km deep · 97 km away
  10. 4.0Rat Islands, Aleutian Islands, Alaska · 331 days ago · 111 km deep · 81 km away
  11. 4.3299 km W of Adak, Alaska · 324 days ago · 200 km deep · 55 km away
  12. 4.3Rat Islands, Aleutian Islands, Alaska · 322 days ago · 97 km deep · 73 km away
  13. 2.6231 km WSW of Adak, Alaska · 319 days ago · 14 km deep · 97 km away
  14. 3.3Rat Islands, Aleutian Islands, Alaska · 318 days ago · 106 km deep · 86 km away
  15. 2.8Rat Islands, Aleutian Islands, Alaska · 318 days ago · 12 km deep · 79 km away
  16. 3.1285 km W of Adak, Alaska · 316 days ago · 120 km deep · 27 km away
  17. 2.6177 km W of Adak, Alaska · 316 days ago · 239 km deep · 82 km away
  18. 3.4246 km WSW of Adak, Alaska · 315 days ago · 47 km deep · 61 km away
  19. 2.3Rat Islands, Aleutian Islands, Alaska · 313 days ago · 13 km deep · 80 km away
  20. 2.9185 km WSW of Adak, Alaska · 313 days ago · 77 km deep · 96 km away
  21. 2.5256 km WSW of Adak, Alaska · 313 days ago · 67 km deep · 50 km away
  22. 2.7276 km W of Adak, Alaska · 313 days ago · 63 km deep · 46 km away
  23. 2.9Rat Islands, Aleutian Islands, Alaska · 312 days ago · 92 km deep · 67 km away
  24. 2.9223 km WSW of Adak, Alaska · 311 days ago · 10 km deep · 94 km away
  25. 3.7259 km WSW of Adak, Alaska · 310 days ago · 54 km deep · 74 km away

Before

  1. 2.2257 km W of Adak, Alaska · 372 days ago · 12 km deep · 3 km away
  2. 1.9253 km W of Adak, Alaska · 372 days ago · 3 km deep · 7 km away
  3. 2.6225 km W of Adak, Alaska · 373 days ago · 84 km deep · 42 km away
  4. 2.6171 km W of Adak, Alaska · 373 days ago · 88 km deep · 93 km away
  5. 2.0264 km W of Adak, Alaska · 374 days ago · 4 km deep · 11 km away
  6. 1.6Rat Islands, Aleutian Islands, Alaska · 375 days ago · 8 km deep · 83 km away
  7. 2.0Rat Islands, Aleutian Islands, Alaska · 379 days ago · 4 km deep · 70 km away
  8. 3.7Rat Islands, Aleutian Islands, Alaska · 380 days ago · 113 km deep · 90 km away
  9. 3.2231 km WSW of Adak, Alaska · 383 days ago · 15 km deep · 57 km away
  10. 1.6Rat Islands, Aleutian Islands, Alaska · 384 days ago · 6 km deep · 78 km away
  11. 1.7Rat Islands, Aleutian Islands, Alaska · 385 days ago · 5 km deep · 84 km away
  12. 4.5261 km W of Adak, Alaska · 387 days ago · 73 km deep · 47 km away
  13. 1.6222 km W of Adak, Alaska · 396 days ago · 95 km deep · 39 km away
  14. 1.6266 km W of Adak, Alaska · 397 days ago · 68 km deep · 37 km away
  15. 1.6246 km WSW of Adak, Alaska · 397 days ago · 45 km deep · 53 km away
  16. 2.9Rat Islands, Aleutian Islands, Alaska · 397 days ago · 154 km deep · 99 km away
  17. 2.1Rat Islands, Aleutian Islands, Alaska · 397 days ago · 148 km deep · 47 km away
  18. 1.8Rat Islands, Aleutian Islands, Alaska · 398 days ago · 9 km deep · 91 km away
  19. 2.0Rat Islands, Aleutian Islands, Alaska · 399 days ago · 36 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event av93799363. Read Sun, Oct 4, 2026, 8:55 PM UTC.