Alaska earthquakes

M2.7 earthquake 251 km WSW of Adak, Alaska

A magnitude 2.7 earthquake struck 251 km WSW of Adak, Alaska on Sat, Dec 6, 2025, 6:16 PM GMT-12 (06:16 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.0 294 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
2.7 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-12-07 06:16:17 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
50.981° N, 179.956° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
2.7ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.097 · 14 stations
3.3ML, local (Richter)Alaska Earthquake CenterReviewed · ±0.2 · 7 stations

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 3.2 km horizontally, 12.0 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
248°, poorly surrounded by stations
Stations used
14

Nearby

Within 100 km, magnitude 1.5 and up: 38 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 3.2269 km WSW of Adak, Alaska · 299 days ago · 52 km deep · 50 km away
  2. 2.6228 km WSW of Adak, Alaska · 297 days ago · 10 km deep · 23 km away
  3. 1.6263 km W of Adak, Alaska · 296 days ago · 3 km deep · 97 km away
  4. 3.1165 km WSW of Adak, Alaska · 295 days ago · 31 km deep · 87 km away
  5. 3.9Rat Islands, Aleutian Islands, Alaska · 293 days ago · 10 km deep · 97 km away
  6. 3.1219 km WSW of Adak, Alaska · 292 days ago · 35 km deep · 33 km away
  7. 2.5228 km WSW of Adak, Alaska · 289 days ago · 66 km deep · 53 km away
  8. 2.9206 km WSW of Adak, Alaska · 289 days ago · 35 km deep · 45 km away
  9. 2.9Rat Islands, Aleutian Islands, Alaska · 289 days ago · 10 km deep · 93 km away
  10. 2.5213 km WSW of Adak, Alaska · 288 days ago · 24 km deep · 38 km away
  11. 2.6252 km WSW of Adak, Alaska · 288 days ago · 35 km deep · 19 km away
  12. 2.6261 km W of Adak, Alaska · 287 days ago · 92 km deep · 93 km away
  13. 3.3220 km W of Adak, Alaska · 287 days ago · 106 km deep · 86 km away
  14. 1.6255 km W of Adak, Alaska · 285 days ago · 4 km deep · 94 km away
  15. 2.8181 km WSW of Adak, Alaska · 283 days ago · 76 km deep · 78 km away
  16. 3.8211 km WSW of Adak, Alaska · 283 days ago · 37 km deep · 40 km away
  17. 2.9214 km WSW of Adak, Alaska · 283 days ago · 13 km deep · 37 km away
  18. 3.2262 km W of Adak, Alaska · 281 days ago · 77 km deep · 82 km away
  19. 2.8277 km W of Adak, Alaska · 281 days ago · 67 km deep · 77 km away
  20. 3.1291 km WSW of Adak, Alaska · 276 days ago · 41 km deep · 67 km away
  21. 2.9160 km WSW of Adak, Alaska · 269 days ago · 35 km deep · 94 km away
  22. 3.3233 km WSW of Adak, Alaska · 262 days ago · 35 km deep · 21 km away
  23. 2.9233 km W of Adak, Alaska · 262 days ago · 95 km deep · 78 km away
  24. 3.5157 km WSW of Adak, Alaska · 258 days ago · 16 km deep · 94 km away
  25. 2.7Rat Islands, Aleutian Islands, Alaska · 258 days ago · 48 km deep · 100 km away
  26. 3.3Rat Islands, Aleutian Islands, Alaska · 254 days ago · 10 km deep · 98 km away
  27. 3.1239 km WSW of Adak, Alaska · 254 days ago · 14 km deep · 12 km away
  28. 2.8233 km WSW of Adak, Alaska · 254 days ago · 18 km deep · 40 km away
  29. 3.5299 km WSW of Adak, Alaska · 250 days ago · 26 km deep · 79 km away
  30. 3.2Rat Islands, Aleutian Islands, Alaska · 250 days ago · 35 km deep · 77 km away
  31. 3.4205 km W of Adak, Alaska · 248 days ago · 94 km deep · 84 km away
  32. 3.9226 km SW of Adak, Alaska · 246 days ago · 7 km deep · 52 km away
  33. 4.0294 km WSW of Adak, Alaska · 246 days ago · 10 km deep · 43 km away
  34. 3.0240 km WSW of Adak, Alaska · 244 days ago · 10 km deep · 12 km away
  35. 3.6265 km W of Adak, Alaska · 243 days ago · 80 km deep · 78 km away
  36. 3.3283 km WSW of Adak, Alaska · 242 days ago · 35 km deep · 65 km away
  37. 3.0283 km WSW of Adak, Alaska · 240 days ago · 35 km deep · 44 km away
  38. 2.9269 km W of Adak, Alaska · 240 days ago · 108 km deep · 98 km away

Before

  1. 2.6154 km WSW of Adak, Alaska · 301 days ago · 59 km deep · 97 km away
  2. 4.2199 km WSW of Adak, Alaska · 303 days ago · 13 km deep · 59 km away
  3. 3.7259 km WSW of Adak, Alaska · 307 days ago · 54 km deep · 35 km away
  4. 2.9223 km WSW of Adak, Alaska · 309 days ago · 10 km deep · 31 km away
  5. 3.4213 km WSW of Adak, Alaska · 310 days ago · 18 km deep · 49 km away
  6. 2.7276 km W of Adak, Alaska · 310 days ago · 63 km deep · 73 km away
  7. 2.5256 km WSW of Adak, Alaska · 310 days ago · 67 km deep · 57 km away
  8. 2.9185 km WSW of Adak, Alaska · 310 days ago · 77 km deep · 72 km away
  9. 3.4246 km WSW of Adak, Alaska · 313 days ago · 47 km deep · 46 km away
  10. 2.8Rat Islands, Aleutian Islands, Alaska · 316 days ago · 12 km deep · 98 km away
  11. 2.6231 km WSW of Adak, Alaska · 316 days ago · 14 km deep · 22 km away
  12. 2.9157 km WSW of Adak, Alaska · 318 days ago · 8 km deep · 95 km away
  13. 2.8194 km WSW of Adak, Alaska · 322 days ago · 35 km deep · 57 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000ruaa (also filed as ak2025yapjrw). Read Fri, Oct 2, 2026, 4:38 AM UTC.