Alaska earthquakes

M2.6 earthquake 252 km WSW of Adak, Alaska

A magnitude 2.6 earthquake struck 252 km WSW of Adak, Alaska on Fri, Dec 19, 2025, 3:03 AM GMT+12 (15:03 UTC), 35 km (22 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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Map

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

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The earthquake

Magnitude
2.6 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-12-18 15:03:14 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.133° N, 179.923° E
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
2.6ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.091 · 16 stations
2.7ML, local (Richter)Alaska Earthquake CenterReviewed · ±0.1 · 17 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 5.6 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.09
Depth from
Operator assigned
Station coverage gap
231°, poorly surrounded by stations
Stations used
18

Nearby

Within 100 km, magnitude 1.5 and up: 35 in the 60 days after this one and 34 in the 30 days before it.

After

  1. 2.6261 km W of Adak, Alaska · 287 days ago · 92 km deep · 74 km away
  2. 3.3220 km W of Adak, Alaska · 287 days ago · 106 km deep · 70 km away
  3. 3.3263 km W of Adak, Alaska · 286 days ago · 193 km deep · 95 km away
  4. 1.6255 km W of Adak, Alaska · 285 days ago · 4 km deep · 75 km away
  5. 2.8181 km WSW of Adak, Alaska · 283 days ago · 76 km deep · 74 km away
  6. 3.8211 km WSW of Adak, Alaska · 283 days ago · 37 km deep · 46 km away
  7. 2.9214 km WSW of Adak, Alaska · 282 days ago · 13 km deep · 45 km away
  8. 3.2262 km W of Adak, Alaska · 281 days ago · 77 km deep · 63 km away
  9. 1.6168 km W of Adak, Alaska · 281 days ago · 14 km deep · 97 km away
  10. 2.8277 km W of Adak, Alaska · 281 days ago · 67 km deep · 58 km away
  11. 3.1291 km WSW of Adak, Alaska · 276 days ago · 41 km deep · 51 km away
  12. 3.4Rat Islands, Aleutian Islands, Alaska · 272 days ago · 10 km deep · 90 km away
  13. 1.5250 km W of Adak, Alaska · 271 days ago · 5 km deep · 98 km away
  14. 3.3233 km WSW of Adak, Alaska · 262 days ago · 35 km deep · 20 km away
  15. 2.9233 km W of Adak, Alaska · 262 days ago · 95 km deep · 61 km away
  16. 3.5157 km WSW of Adak, Alaska · 258 days ago · 16 km deep · 95 km away
  17. 2.7Rat Islands, Aleutian Islands, Alaska · 258 days ago · 48 km deep · 85 km away
  18. 3.1239 km WSW of Adak, Alaska · 254 days ago · 14 km deep · 21 km away
  19. 2.8233 km WSW of Adak, Alaska · 254 days ago · 18 km deep · 27 km away
  20. 3.5299 km WSW of Adak, Alaska · 250 days ago · 26 km deep · 63 km away
  21. 3.2Rat Islands, Aleutian Islands, Alaska · 249 days ago · 35 km deep · 64 km away
  22. 3.4205 km W of Adak, Alaska · 248 days ago · 94 km deep · 72 km away
  23. 3.9226 km SW of Adak, Alaska · 246 days ago · 7 km deep · 69 km away
  24. 4.0294 km WSW of Adak, Alaska · 246 days ago · 10 km deep · 48 km away
  25. 3.0240 km WSW of Adak, Alaska · 244 days ago · 10 km deep · 27 km away
  26. 3.6265 km W of Adak, Alaska · 243 days ago · 80 km deep · 59 km away
  27. 3.3283 km WSW of Adak, Alaska · 242 days ago · 35 km deep · 48 km away
  28. 3.0283 km WSW of Adak, Alaska · 240 days ago · 35 km deep · 32 km away
  29. 2.9269 km W of Adak, Alaska · 240 days ago · 108 km deep · 79 km away
  30. 3.1214 km WSW of Adak, Alaska · 239 days ago · 12 km deep · 61 km away
  31. 2.8186 km W of Adak, Alaska · 238 days ago · 141 km deep · 94 km away
  32. 3.3Rat Islands, Aleutian Islands, Alaska · 229 days ago · 99 km deep · 95 km away
  33. 3.1181 km WSW of Adak, Alaska · 229 days ago · 10 km deep · 72 km away
  34. 2.8Rat Islands, Aleutian Islands, Alaska · 229 days ago · 35 km deep · 88 km away
  35. 2.8223 km WSW of Adak, Alaska · 228 days ago · 60 km deep · 39 km away

Before

  1. 2.5213 km WSW of Adak, Alaska · 288 days ago · 24 km deep · 44 km away
  2. 2.9Rat Islands, Aleutian Islands, Alaska · 289 days ago · 10 km deep · 83 km away
  3. 2.9206 km WSW of Adak, Alaska · 289 days ago · 35 km deep · 47 km away
  4. 2.4172 km W of Adak, Alaska · 289 days ago · 130 km deep · 96 km away
  5. 2.5228 km WSW of Adak, Alaska · 289 days ago · 66 km deep · 38 km away
  6. 3.1219 km WSW of Adak, Alaska · 292 days ago · 35 km deep · 34 km away
  7. 1.9269 km W of Adak, Alaska · 294 days ago · 8 km deep · 83 km away
  8. 2.1263 km W of Adak, Alaska · 295 days ago · 11 km deep · 82 km away
  9. 3.1165 km WSW of Adak, Alaska · 295 days ago · 31 km deep · 91 km away
  10. 2.4166 km W of Adak, Alaska · 296 days ago · 5 km deep · 96 km away
  11. 1.6263 km W of Adak, Alaska · 296 days ago · 3 km deep · 78 km away
  12. 2.6228 km WSW of Adak, Alaska · 297 days ago · 10 km deep · 29 km away
  13. 1.5261 km W of Adak, Alaska · 297 days ago · 16 km deep · 89 km away
  14. 4.7Rat Islands, Aleutian Islands, Alaska · 297 days ago · 19 km deep · 95 km away
  15. 2.1252 km W of Adak, Alaska · 298 days ago · 4 km deep · 86 km away
  16. 1.8261 km W of Adak, Alaska · 298 days ago · 4 km deep · 89 km away
  17. 3.2269 km WSW of Adak, Alaska · 299 days ago · 52 km deep · 32 km away
  18. 2.7251 km WSW of Adak, Alaska · 299 days ago · 6 km deep · 19 km away
  19. 2.1273 km W of Adak, Alaska · 299 days ago · 12 km deep · 87 km away
  20. 2.6154 km WSW of Adak, Alaska · 301 days ago · 59 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000s0a1 (also filed as ak2025yvlpjm). Read Fri, Oct 2, 2026, 2:18 AM UTC.