Alaska earthquakes

M3.3 earthquake 283 km WSW of Adak, Alaska

A magnitude 3.3 earthquake struck 283 km WSW of Adak, Alaska on Mon, Feb 2, 2026, 12:54 PM GMT+12 (00:54 UTC), 35 km (22 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
3.3 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2026-02-02 00:54:10 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.369° N, 179.353° 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
3.3ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.091 · 16 stations
3.4ML, local (Richter)Alaska Earthquake CenterReviewed · ±0.1 · 13 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 5.5 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.09
Depth from
Operator assigned
Station coverage gap
205°, poorly surrounded by stations
Stations used
17

Nearby

Within 100 km, magnitude 1.5 and up: 67 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 3.7Rat Islands, Aleutian Islands, Alaska · 241 days ago · 133 km deep · 96 km away
  2. 3.0283 km WSW of Adak, Alaska · 240 days ago · 35 km deep · 29 km away
  3. 4.1Rat Islands, Aleutian Islands, Alaska · 240 days ago · 69 km deep · 68 km away
  4. 2.9269 km W of Adak, Alaska · 240 days ago · 108 km deep · 46 km away
  5. 3.9Rat Islands, Aleutian Islands, Alaska · 237 days ago · 56 km deep · 58 km away
  6. 4.9Rat Islands, Aleutian Islands, Alaska · 230 days ago · 117 km deep · 97 km away
  7. 3.5Rat Islands, Aleutian Islands, Alaska · 230 days ago · 113 km deep · 88 km away
  8. 3.3Rat Islands, Aleutian Islands, Alaska · 229 days ago · 99 km deep · 49 km away
  9. 2.8Rat Islands, Aleutian Islands, Alaska · 229 days ago · 35 km deep · 44 km away
  10. 2.8223 km WSW of Adak, Alaska · 228 days ago · 60 km deep · 60 km away
  11. 2.7224 km WSW of Adak, Alaska · 225 days ago · 35 km deep · 84 km away
  12. 3.2251 km W of Adak, Alaska · 225 days ago · 95 km deep · 48 km away
  13. 4.7225 km W of Adak, Alaska · 225 days ago · 127 km deep · 88 km away
  14. 3.5Rat Islands, Aleutian Islands, Alaska · 223 days ago · 32 km deep · 73 km away
  15. 1.5259 km W of Adak, Alaska · 222 days ago · 12 km deep · 61 km away
  16. 2.1Rat Islands, Aleutian Islands, Alaska · 222 days ago · 11 km deep · 93 km away
  17. 3.9249 km WSW of Adak, Alaska · 221 days ago · 9 km deep · 76 km away
  18. 3.9Rat Islands, Aleutian Islands, Alaska · 212 days ago · 10 km deep · 68 km away
  19. 3.0247 km WSW of Adak, Alaska · 212 days ago · 8 km deep · 52 km away
  20. 4.4255 km WSW of Adak, Alaska · 211 days ago · 10 km deep · 69 km away
  21. 3.3248 km WSW of Adak, Alaska · 209 days ago · 13 km deep · 53 km away
  22. 2.5298 km WSW of Adak, Alaska · 208 days ago · 30 km deep · 39 km away
  23. 2.1Rat Islands, Aleutian Islands, Alaska · 207 days ago · 173 km deep · 97 km away
  24. 1.8271 km W of Adak, Alaska · 207 days ago · 24 km deep · 23 km away
  25. 3.0Rat Islands, Aleutian Islands, Alaska · 207 days ago · 75 km deep · 53 km away
  26. 2.2202 km W of Adak, Alaska · 207 days ago · 17 km deep · 86 km away
  27. 2.5259 km WSW of Adak, Alaska · 207 days ago · 55 km deep · 24 km away
  28. 3.1299 km W of Adak, Alaska · 207 days ago · 32 km deep · 30 km away
  29. 2.9Rat Islands, Aleutian Islands, Alaska · 205 days ago · 45 km deep · 65 km away
  30. 2.9259 km W of Adak, Alaska · 204 days ago · 79 km deep · 33 km away
  31. 2.7253 km WSW of Adak, Alaska · 203 days ago · 36 km deep · 31 km away
  32. 3.5268 km W of Adak, Alaska · 203 days ago · 81 km deep · 28 km away
  33. 2.9Rat Islands, Aleutian Islands, Alaska · 203 days ago · 58 km deep · 68 km away
  34. 1.6Rat Islands, Aleutian Islands, Alaska · 202 days ago · 8 km deep · 95 km away
  35. 2.7244 km W of Adak, Alaska · 200 days ago · 180 km deep · 97 km away
  36. 2.2Rat Islands, Aleutian Islands, Alaska · 199 days ago · 49 km deep · 46 km away
  37. 2.1Rat Islands, Aleutian Islands, Alaska · 199 days ago · 96 km deep · 69 km away
  38. 3.1Rat Islands, Aleutian Islands, Alaska · 198 days ago · 92 km deep · 71 km away
  39. 4.0230 km W of Adak, Alaska · 198 days ago · 88 km deep · 59 km away
  40. 2.6Rat Islands, Aleutian Islands, Alaska · 198 days ago · 70 km deep · 97 km away
  41. 2.4212 km W of Adak, Alaska · 198 days ago · 136 km deep · 80 km away
  42. 2.3282 km W of Adak, Alaska · 197 days ago · 76 km deep · 28 km away
  43. 2.5281 km WSW of Adak, Alaska · 197 days ago · 41 km deep · 9 km away
  44. 2.0230 km WSW of Adak, Alaska · 197 days ago · 67 km deep · 53 km away
  45. 2.2203 km W of Adak, Alaska · 197 days ago · 80 km deep · 80 km away
  46. 2.3Rat Islands, Aleutian Islands, Alaska · 196 days ago · 39 km deep · 42 km away
  47. 2.1Rat Islands, Aleutian Islands, Alaska · 196 days ago · 108 km deep · 79 km away
  48. 2.1285 km WSW of Adak, Alaska · 196 days ago · 60 km deep · 5 km away
  49. 2.4251 km WSW of Adak, Alaska · 195 days ago · 10 km deep · 32 km away
  50. 3.0Rat Islands, Aleutian Islands, Alaska · 195 days ago · 65 km deep · 55 km away
  51. 2.8248 km WSW of Adak, Alaska · 194 days ago · 10 km deep · 68 km away
  52. 3.8261 km WSW of Adak, Alaska · 193 days ago · 60 km deep · 22 km away
  53. 2.6217 km WSW of Adak, Alaska · 191 days ago · 66 km deep · 66 km away
  54. 2.8225 km W of Adak, Alaska · 190 days ago · 90 km deep · 62 km away
  55. 3.8Rat Islands, Aleutian Islands, Alaska · 189 days ago · 132 km deep · 92 km away
  56. 2.5Rat Islands, Aleutian Islands, Alaska · 188 days ago · 99 km deep · 58 km away
  57. 2.7238 km WSW of Adak, Alaska · 188 days ago · 10 km deep · 74 km away
  58. 3.2202 km W of Adak, Alaska · 187 days ago · 82 km deep · 81 km away
  59. 2.5296 km WSW of Adak, Alaska · 187 days ago · 19 km deep · 33 km away
  60. 2.8296 km WSW of Adak, Alaska · 187 days ago · 35 km deep · 35 km away

The first 60 of 67.

Before

  1. 3.6265 km W of Adak, Alaska · 244 days ago · 80 km deep · 30 km away
  2. 3.0240 km WSW of Adak, Alaska · 244 days ago · 10 km deep · 74 km away
  3. 4.0294 km WSW of Adak, Alaska · 246 days ago · 10 km deep · 66 km away
  4. 3.4205 km W of Adak, Alaska · 248 days ago · 94 km deep · 82 km away
  5. 3.2Rat Islands, Aleutian Islands, Alaska · 250 days ago · 35 km deep · 31 km away
  6. 3.5299 km WSW of Adak, Alaska · 250 days ago · 26 km deep · 17 km away
  7. 2.3Rat Islands, Aleutian Islands, Alaska · 253 days ago · 5 km deep · 92 km away
  8. 2.8233 km WSW of Adak, Alaska · 254 days ago · 18 km deep · 52 km away
  9. 3.1239 km WSW of Adak, Alaska · 254 days ago · 14 km deep · 68 km away
  10. 2.7Rat Islands, Aleutian Islands, Alaska · 258 days ago · 48 km deep · 42 km away
  11. 2.9233 km W of Adak, Alaska · 262 days ago · 95 km deep · 57 km away
  12. 3.3233 km WSW of Adak, Alaska · 262 days ago · 35 km deep · 65 km away
  13. 1.5250 km W of Adak, Alaska · 271 days ago · 5 km deep · 76 km away
  14. 3.4Rat Islands, Aleutian Islands, Alaska · 272 days ago · 10 km deep · 56 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000s68q (also filed as ak2026cgvavy). Read Fri, Oct 2, 2026, 9:55 AM UTC.