Alaska earthquakes

M2.9 earthquake 269 km W of Adak, Alaska

A magnitude 2.9 earthquake struck 269 km W of Adak, Alaska on Wed, Feb 4, 2026, 8:21 PM GMT+12 (08:21 UTC), 108 km (67 mi) below the surface.

A larger quake followed: M4.9 Rat Islands, Aleutian Islands, 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
2.9 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2026-02-04 08:21:50 UTC
Depth
107.9 km (67.0 mi), intermediate-depth
Epicenter
51.781° N, 179.454° 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
2.9ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.105 · 12 stations
2.9ML, local (Richter)Alaska Earthquake CenterReviewed · ±0.5 · 10 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 5.1 km horizontally, 3.7 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
105°
Stations used
16

Nearby

Within 100 km, magnitude 1.5 and up: 60 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 2.8186 km W of Adak, Alaska · 241 days ago · 141 km deep · 83 km away
  2. 3.9Rat Islands, Aleutian Islands, Alaska · 240 days ago · 56 km deep · 66 km away
  3. 4.9Rat Islands, Aleutian Islands, Alaska · 233 days ago · 117 km deep · 77 km away
  4. 3.5Rat Islands, Aleutian Islands, Alaska · 233 days ago · 113 km deep · 78 km away
  5. 3.3Rat Islands, Aleutian Islands, Alaska · 232 days ago · 99 km deep · 39 km away
  6. 2.8Rat Islands, Aleutian Islands, Alaska · 232 days ago · 35 km deep · 69 km away
  7. 2.8223 km WSW of Adak, Alaska · 231 days ago · 60 km deep · 65 km away
  8. 3.2251 km W of Adak, Alaska · 228 days ago · 95 km deep · 19 km away
  9. 4.7225 km W of Adak, Alaska · 228 days ago · 127 km deep · 51 km away
  10. 3.5Rat Islands, Aleutian Islands, Alaska · 226 days ago · 32 km deep · 89 km away
  11. 3.8258 km WNW of Adak, Alaska · 225 days ago · 182 km deep · 71 km away
  12. 1.5259 km W of Adak, Alaska · 225 days ago · 12 km deep · 17 km away
  13. 2.1Rat Islands, Aleutian Islands, Alaska · 225 days ago · 11 km deep · 79 km away
  14. 3.8Rat Islands, Aleutian Islands, Alaska · 217 days ago · 146 km deep · 89 km away
  15. 3.0247 km WSW of Adak, Alaska · 214 days ago · 8 km deep · 82 km away
  16. 3.3248 km WSW of Adak, Alaska · 212 days ago · 13 km deep · 83 km away
  17. 2.5298 km WSW of Adak, Alaska · 211 days ago · 30 km deep · 85 km away
  18. 2.1Rat Islands, Aleutian Islands, Alaska · 210 days ago · 173 km deep · 81 km away
  19. 1.8271 km W of Adak, Alaska · 210 days ago · 24 km deep · 25 km away
  20. 3.0Rat Islands, Aleutian Islands, Alaska · 210 days ago · 75 km deep · 59 km away
  21. 2.2202 km W of Adak, Alaska · 210 days ago · 17 km deep · 67 km away
  22. 2.5259 km WSW of Adak, Alaska · 210 days ago · 55 km deep · 43 km away
  23. 3.1299 km W of Adak, Alaska · 210 days ago · 32 km deep · 37 km away
  24. 2.9Rat Islands, Aleutian Islands, Alaska · 207 days ago · 45 km deep · 82 km away
  25. 2.9259 km W of Adak, Alaska · 207 days ago · 79 km deep · 22 km away
  26. 2.7253 km WSW of Adak, Alaska · 206 days ago · 36 km deep · 54 km away
  27. 3.5268 km W of Adak, Alaska · 206 days ago · 81 km deep · 20 km away
  28. 2.9Rat Islands, Aleutian Islands, Alaska · 206 days ago · 58 km deep · 79 km away
  29. 1.6Rat Islands, Aleutian Islands, Alaska · 205 days ago · 8 km deep · 73 km away
  30. 2.7244 km W of Adak, Alaska · 203 days ago · 180 km deep · 53 km away
  31. 2.2Rat Islands, Aleutian Islands, Alaska · 202 days ago · 49 km deep · 72 km away
  32. 2.1Rat Islands, Aleutian Islands, Alaska · 201 days ago · 96 km deep · 58 km away
  33. 3.1Rat Islands, Aleutian Islands, Alaska · 201 days ago · 92 km deep · 66 km away
  34. 4.0230 km W of Adak, Alaska · 200 days ago · 88 km deep · 41 km away
  35. 2.6Rat Islands, Aleutian Islands, Alaska · 200 days ago · 70 km deep · 99 km away
  36. 2.4212 km W of Adak, Alaska · 200 days ago · 136 km deep · 57 km away
  37. 2.3282 km W of Adak, Alaska · 200 days ago · 76 km deep · 21 km away
  38. 2.5281 km WSW of Adak, Alaska · 200 days ago · 41 km deep · 54 km away
  39. 2.0230 km WSW of Adak, Alaska · 200 days ago · 67 km deep · 59 km away
  40. 2.2203 km W of Adak, Alaska · 200 days ago · 80 km deep · 71 km away
  41. 2.3Rat Islands, Aleutian Islands, Alaska · 199 days ago · 39 km deep · 65 km away
  42. 2.1Rat Islands, Aleutian Islands, Alaska · 199 days ago · 108 km deep · 69 km away
  43. 2.1285 km WSW of Adak, Alaska · 199 days ago · 60 km deep · 43 km away
  44. 2.4251 km WSW of Adak, Alaska · 198 days ago · 10 km deep · 49 km away
  45. 3.0Rat Islands, Aleutian Islands, Alaska · 197 days ago · 65 km deep · 57 km away
  46. 3.8261 km WSW of Adak, Alaska · 196 days ago · 60 km deep · 46 km away
  47. 2.6217 km WSW of Adak, Alaska · 194 days ago · 66 km deep · 64 km away
  48. 2.8225 km W of Adak, Alaska · 192 days ago · 90 km deep · 48 km away
  49. 3.8Rat Islands, Aleutian Islands, Alaska · 192 days ago · 132 km deep · 80 km away
  50. 2.5Rat Islands, Aleutian Islands, Alaska · 191 days ago · 99 km deep · 39 km away
  51. 2.5236 km W of Adak, Alaska · 190 days ago · 146 km deep · 57 km away
  52. 3.2202 km W of Adak, Alaska · 190 days ago · 82 km deep · 74 km away
  53. 2.5296 km WSW of Adak, Alaska · 190 days ago · 19 km deep · 79 km away
  54. 2.8296 km WSW of Adak, Alaska · 190 days ago · 35 km deep · 81 km away
  55. 2.5259 km W of Adak, Alaska · 189 days ago · 129 km deep · 13 km away
  56. 2.3221 km W of Adak, Alaska · 189 days ago · 93 km deep · 48 km away
  57. 2.9Rat Islands, Aleutian Islands, Alaska · 188 days ago · 35 km deep · 74 km away
  58. 2.6Rat Islands, Aleutian Islands, Alaska · 188 days ago · 31 km deep · 70 km away
  59. 2.0Rat Islands, Aleutian Islands, Alaska · 186 days ago · 124 km deep · 66 km away
  60. 4.5Rat Islands, Aleutian Islands, Alaska · 184 days ago · 22 km deep · 96 km away

Before

  1. 4.1Rat Islands, Aleutian Islands, Alaska · 243 days ago · 69 km deep · 76 km away
  2. 3.0283 km WSW of Adak, Alaska · 243 days ago · 35 km deep · 73 km away
  3. 3.7Rat Islands, Aleutian Islands, Alaska · 244 days ago · 133 km deep · 92 km away
  4. 3.3283 km WSW of Adak, Alaska · 245 days ago · 35 km deep · 46 km away
  5. 3.9295 km W of Adak, Alaska · 246 days ago · 176 km deep · 66 km away
  6. 3.6265 km W of Adak, Alaska · 246 days ago · 80 km deep · 20 km away
  7. 3.4205 km W of Adak, Alaska · 251 days ago · 94 km deep · 66 km away
  8. 3.2Rat Islands, Aleutian Islands, Alaska · 252 days ago · 35 km deep · 72 km away
  9. 3.5299 km WSW of Adak, Alaska · 253 days ago · 26 km deep · 49 km away
  10. 2.3Rat Islands, Aleutian Islands, Alaska · 255 days ago · 5 km deep · 79 km away
  11. 2.8233 km WSW of Adak, Alaska · 257 days ago · 18 km deep · 66 km away
  12. 3.1239 km WSW of Adak, Alaska · 257 days ago · 14 km deep · 96 km away
  13. 2.7Rat Islands, Aleutian Islands, Alaska · 261 days ago · 48 km deep · 67 km away
  14. 2.9233 km W of Adak, Alaska · 265 days ago · 95 km deep · 39 km away
  15. 3.3233 km WSW of Adak, Alaska · 265 days ago · 35 km deep · 89 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000s6xu (also filed as ak2026clbitk). Read Mon, Oct 5, 2026, 3:08 AM UTC.