Alaska earthquakes

M3.4 earthquake 246 km WSW of Adak, Alaska

A magnitude 3.4 earthquake struck 246 km WSW of Adak, Alaska on Mon, Nov 24, 2025, 4:25 AM GMT+12 (16:25 UTC), 47 km (29 mi) below the surface.

A larger quake followed: M4.7 Rat Islands, Aleutian Islands, 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
3.4 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-11-23 16:25:10 UTC
Depth
47.3 km (29.4 mi), shallow
Epicenter
51.382° N, 179.894° E
Region
Alaska
Strongest shaking
II, weak shaking
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
3.4ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.097 · 14 stations
3.5ML, local (Richter)Alaska Earthquake CenterReviewed · ±0.3 · 16 stations

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
0.2% of gravity
Peak ground velocity
0.1 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 3.1 km horizontally, 6.7 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
192°, poorly surrounded by stations
Stations used
16

Nearby

Within 100 km, magnitude 1.5 and up: 53 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.3Rat Islands, Aleutian Islands, Alaska · 310 days ago · 13 km deep · 89 km away
  2. 2.9185 km WSW of Adak, Alaska · 310 days ago · 77 km deep · 61 km away
  3. 2.5256 km WSW of Adak, Alaska · 310 days ago · 67 km deep · 14 km away
  4. 2.7276 km W of Adak, Alaska · 310 days ago · 63 km deep · 36 km away
  5. 3.4213 km WSW of Adak, Alaska · 310 days ago · 18 km deep · 79 km away
  6. 2.9Rat Islands, Aleutian Islands, Alaska · 309 days ago · 92 km deep · 92 km away
  7. 2.9223 km WSW of Adak, Alaska · 309 days ago · 10 km deep · 38 km away
  8. 3.7259 km WSW of Adak, Alaska · 307 days ago · 54 km deep · 18 km away
  9. 3.7256 km W of Adak, Alaska · 305 days ago · 133 km deep · 77 km away
  10. 4.2199 km WSW of Adak, Alaska · 303 days ago · 13 km deep · 84 km away
  11. 2.6154 km WSW of Adak, Alaska · 301 days ago · 59 km deep · 97 km away
  12. 2.1273 km W of Adak, Alaska · 299 days ago · 12 km deep · 62 km away
  13. 2.7251 km WSW of Adak, Alaska · 299 days ago · 6 km deep · 46 km away
  14. 3.2269 km WSW of Adak, Alaska · 299 days ago · 52 km deep · 23 km away
  15. 4.3266 km W of Adak, Alaska · 299 days ago · 171 km deep · 91 km away
  16. 1.8261 km W of Adak, Alaska · 298 days ago · 4 km deep · 62 km away
  17. 2.1252 km W of Adak, Alaska · 298 days ago · 4 km deep · 58 km away
  18. 4.7Rat Islands, Aleutian Islands, Alaska · 297 days ago · 19 km deep · 96 km away
  19. 1.5261 km W of Adak, Alaska · 297 days ago · 16 km deep · 62 km away
  20. 2.6228 km WSW of Adak, Alaska · 297 days ago · 10 km deep · 45 km away
  21. 1.6263 km W of Adak, Alaska · 296 days ago · 3 km deep · 52 km away
  22. 2.4166 km W of Adak, Alaska · 296 days ago · 5 km deep · 82 km away
  23. 3.1165 km WSW of Adak, Alaska · 295 days ago · 31 km deep · 94 km away
  24. 2.1263 km W of Adak, Alaska · 295 days ago · 11 km deep · 56 km away
  25. 1.9269 km W of Adak, Alaska · 294 days ago · 8 km deep · 58 km away
  26. 3.1219 km WSW of Adak, Alaska · 292 days ago · 35 km deep · 43 km away
  27. 2.5228 km WSW of Adak, Alaska · 289 days ago · 66 km deep · 18 km away
  28. 2.4172 km W of Adak, Alaska · 289 days ago · 130 km deep · 79 km away
  29. 2.9206 km WSW of Adak, Alaska · 289 days ago · 35 km deep · 53 km away
  30. 2.9Rat Islands, Aleutian Islands, Alaska · 289 days ago · 10 km deep · 85 km away
  31. 2.5213 km WSW of Adak, Alaska · 288 days ago · 24 km deep · 55 km away
  32. 2.6252 km WSW of Adak, Alaska · 288 days ago · 35 km deep · 28 km away
  33. 2.6261 km W of Adak, Alaska · 287 days ago · 92 km deep · 48 km away
  34. 3.3220 km W of Adak, Alaska · 287 days ago · 106 km deep · 45 km away
  35. 3.3263 km W of Adak, Alaska · 286 days ago · 193 km deep · 68 km away
  36. 1.6255 km W of Adak, Alaska · 285 days ago · 4 km deep · 48 km away
  37. 2.8181 km WSW of Adak, Alaska · 283 days ago · 76 km deep · 65 km away
  38. 3.8211 km WSW of Adak, Alaska · 283 days ago · 37 km deep · 58 km away
  39. 2.9214 km WSW of Adak, Alaska · 283 days ago · 13 km deep · 58 km away
  40. 3.2262 km W of Adak, Alaska · 281 days ago · 77 km deep · 37 km away
  41. 1.6168 km W of Adak, Alaska · 281 days ago · 14 km deep · 82 km away
  42. 2.8277 km W of Adak, Alaska · 281 days ago · 67 km deep · 39 km away
  43. 3.1291 km WSW of Adak, Alaska · 276 days ago · 41 km deep · 45 km away
  44. 3.4Rat Islands, Aleutian Islands, Alaska · 272 days ago · 10 km deep · 92 km away
  45. 2.6150 km WSW of Adak, Alaska · 272 days ago · 4 km deep · 100 km away
  46. 1.5250 km W of Adak, Alaska · 271 days ago · 5 km deep · 71 km away
  47. 3.6147 km WSW of Adak, Alaska · 264 days ago · 80 km deep · 99 km away
  48. 3.3233 km WSW of Adak, Alaska · 262 days ago · 35 km deep · 35 km away
  49. 2.9233 km W of Adak, Alaska · 262 days ago · 95 km deep · 34 km away
  50. 3.5157 km WSW of Adak, Alaska · 258 days ago · 16 km deep · 92 km away
  51. 2.7Rat Islands, Aleutian Islands, Alaska · 258 days ago · 48 km deep · 79 km away
  52. 3.1239 km WSW of Adak, Alaska · 254 days ago · 14 km deep · 43 km away
  53. 2.8233 km WSW of Adak, Alaska · 254 days ago · 18 km deep · 15 km away

Before

  1. 2.6177 km W of Adak, Alaska · 314 days ago · 239 km deep · 78 km away
  2. 3.1285 km W of Adak, Alaska · 314 days ago · 120 km deep · 72 km away
  3. 2.8Rat Islands, Aleutian Islands, Alaska · 316 days ago · 12 km deep · 76 km away
  4. 2.6231 km WSW of Adak, Alaska · 316 days ago · 14 km deep · 39 km away
  5. 3.1Rat Islands, Aleutian Islands, Alaska · 316 days ago · 32 km deep · 96 km away
  6. 2.8194 km WSW of Adak, Alaska · 322 days ago · 35 km deep · 68 km away
  7. 1.5163 km W of Adak, Alaska · 334 days ago · 6 km deep · 89 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000s8c1 (also filed as ak2025xbrkcm). Read Fri, Oct 2, 2026, 3:46 AM UTC.