Alaska earthquakes

M2.6 earthquake 253 km WSW of Adak, Alaska

A magnitude 2.6 earthquake struck 253 km WSW of Adak, Alaska on Fri, Apr 4, 2025, 11:55 AM GMT+12 (23:55 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.2 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
2.6 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-04-03 23:55:03 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
51.422° N, 179.773° 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 · ±0.105 · 12 stations
2.2ML, local (Richter)Alaska Earthquake CenterPreliminary

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 2.2 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
180°
Stations used
16

Nearby

Within 100 km, magnitude 1.5 and up: 147 in the 60 days after this one and 76 in the 30 days before it.

After

  1. 3.0195 km W of Adak, Alaska · 545 days ago · 97 km deep · 64 km away
  2. 2.1212 km W of Adak, Alaska · 545 days ago · 94 km deep · 44 km away
  3. 1.9255 km W of Adak, Alaska · 545 days ago · 13 km deep · 11 km away
  4. 2.1236 km WSW of Adak, Alaska · 545 days ago · 13 km deep · 51 km away
  5. 1.9199 km WSW of Adak, Alaska · 544 days ago · 21 km deep · 63 km away
  6. 2.2211 km WSW of Adak, Alaska · 544 days ago · 22 km deep · 58 km away
  7. 2.2Rat Islands, Aleutian Islands, Alaska · 543 days ago · 55 km deep · 82 km away
  8. 2.9266 km W of Adak, Alaska · 543 days ago · 171 km deep · 56 km away
  9. 2.7Rat Islands, Aleutian Islands, Alaska · 543 days ago · 57 km deep · 93 km away
  10. 2.2295 km WSW of Adak, Alaska · 542 days ago · 22 km deep · 45 km away
  11. 1.9187 km WSW of Adak, Alaska · 542 days ago · 19 km deep · 79 km away
  12. 2.1Rat Islands, Aleutian Islands, Alaska · 541 days ago · 58 km deep · 71 km away
  13. 2.1246 km WSW of Adak, Alaska · 541 days ago · 16 km deep · 32 km away
  14. 2.1Rat Islands, Aleutian Islands, Alaska · 541 days ago · 16 km deep · 99 km away
  15. 2.0154 km W of Adak, Alaska · 540 days ago · 86 km deep · 99 km away
  16. 2.3239 km WSW of Adak, Alaska · 539 days ago · 13 km deep · 55 km away
  17. 2.7Rat Islands, Aleutian Islands, Alaska · 539 days ago · 68 km deep · 54 km away
  18. 2.5284 km W of Adak, Alaska · 539 days ago · 64 km deep · 35 km away
  19. 2.6251 km WSW of Adak, Alaska · 539 days ago · 35 km deep · 60 km away
  20. 1.8267 km W of Adak, Alaska · 538 days ago · 18 km deep · 47 km away
  21. 2.4205 km W of Adak, Alaska · 538 days ago · 79 km deep · 51 km away
  22. 3.1273 km WSW of Adak, Alaska · 537 days ago · 48 km deep · 22 km away
  23. 1.7249 km W of Adak, Alaska · 537 days ago · 20 km deep · 35 km away
  24. 2.2Rat Islands, Aleutian Islands, Alaska · 537 days ago · 66 km deep · 85 km away
  25. 2.7218 km W of Adak, Alaska · 536 days ago · 149 km deep · 52 km away
  26. 1.9Rat Islands, Aleutian Islands, Alaska · 536 days ago · 66 km deep · 90 km away
  27. 3.3247 km WSW of Adak, Alaska · 536 days ago · 65 km deep · 6 km away
  28. 1.9193 km W of Adak, Alaska · 536 days ago · 85 km deep · 66 km away
  29. 1.6263 km W of Adak, Alaska · 536 days ago · 5 km deep · 50 km away
  30. 2.8291 km WSW of Adak, Alaska · 535 days ago · 52 km deep · 38 km away
  31. 2.1219 km W of Adak, Alaska · 535 days ago · 87 km deep · 40 km away
  32. 1.9215 km WSW of Adak, Alaska · 535 days ago · 10 km deep · 53 km away
  33. 2.2Rat Islands, Aleutian Islands, Alaska · 535 days ago · 99 km deep · 90 km away
  34. 2.9Rat Islands, Aleutian Islands, Alaska · 534 days ago · 46 km deep · 69 km away
  35. 2.5218 km WSW of Adak, Alaska · 534 days ago · 28 km deep · 51 km away
  36. 2.0240 km W of Adak, Alaska · 534 days ago · 78 km deep · 28 km away
  37. 2.1245 km WSW of Adak, Alaska · 534 days ago · 13 km deep · 48 km away
  38. 2.6Rat Islands, Aleutian Islands, Alaska · 533 days ago · 104 km deep · 90 km away
  39. 2.8283 km W of Adak, Alaska · 533 days ago · 158 km deep · 63 km away
  40. 2.6275 km W of Adak, Alaska · 533 days ago · 94 km deep · 45 km away
  41. 2.5184 km W of Adak, Alaska · 533 days ago · 174 km deep · 99 km away
  42. 2.8189 km WSW of Adak, Alaska · 533 days ago · 35 km deep · 75 km away
  43. 2.2270 km W of Adak, Alaska · 532 days ago · 70 km deep · 27 km away
  44. 2.2205 km WSW of Adak, Alaska · 532 days ago · 24 km deep · 55 km away
  45. 1.5159 km W of Adak, Alaska · 531 days ago · 7 km deep · 98 km away
  46. 2.9213 km WSW of Adak, Alaska · 531 days ago · 66 km deep · 40 km away
  47. 2.8244 km WSW of Adak, Alaska · 530 days ago · 31 km deep · 34 km away
  48. 2.8297 km WSW of Adak, Alaska · 529 days ago · 27 km deep · 49 km away
  49. 1.9Rat Islands, Aleutian Islands, Alaska · 529 days ago · 9 km deep · 69 km away
  50. 2.6221 km W of Adak, Alaska · 528 days ago · 98 km deep · 46 km away
  51. 1.9Rat Islands, Aleutian Islands, Alaska · 528 days ago · 16 km deep · 77 km away
  52. 1.7273 km WSW of Adak, Alaska · 528 days ago · 49 km deep · 22 km away
  53. 1.7198 km WSW of Adak, Alaska · 528 days ago · 20 km deep · 61 km away
  54. 2.0189 km W of Adak, Alaska · 527 days ago · 74 km deep · 65 km away
  55. 2.5230 km W of Adak, Alaska · 527 days ago · 94 km deep · 36 km away
  56. 2.2200 km W of Adak, Alaska · 524 days ago · 72 km deep · 54 km away
  57. 2.8250 km W of Adak, Alaska · 524 days ago · 96 km deep · 19 km away
  58. 2.0189 km WSW of Adak, Alaska · 523 days ago · 54 km deep · 64 km away
  59. 1.9226 km W of Adak, Alaska · 522 days ago · 78 km deep · 39 km away
  60. 2.3168 km WSW of Adak, Alaska · 521 days ago · 41 km deep · 86 km away

The first 60 of 147.

Before

  1. 2.2Rat Islands, Aleutian Islands, Alaska · 546 days ago · 13 km deep · 82 km away
  2. 3.0Rat Islands, Aleutian Islands, Alaska · 547 days ago · 83 km deep · 85 km away
  3. 2.9Rat Islands, Aleutian Islands, Alaska · 547 days ago · 70 km deep · 78 km away
  4. 2.8Rat Islands, Aleutian Islands, Alaska · 547 days ago · 75 km deep · 70 km away
  5. 2.8268 km WSW of Adak, Alaska · 548 days ago · 28 km deep · 35 km away
  6. 3.3249 km W of Adak, Alaska · 548 days ago · 231 km deep · 82 km away
  7. 2.8Rat Islands, Aleutian Islands, Alaska · 548 days ago · 63 km deep · 66 km away
  8. 1.6262 km W of Adak, Alaska · 548 days ago · 7 km deep · 58 km away
  9. 1.7193 km WSW of Adak, Alaska · 549 days ago · 24 km deep · 64 km away
  10. 2.9270 km WSW of Adak, Alaska · 549 days ago · 57 km deep · 17 km away
  11. 2.0Rat Islands, Aleutian Islands, Alaska · 549 days ago · 86 km deep · 73 km away
  12. 1.7196 km W of Adak, Alaska · 549 days ago · 70 km deep · 59 km away
  13. 2.7256 km W of Adak, Alaska · 549 days ago · 204 km deep · 53 km away
  14. 1.8297 km W of Adak, Alaska · 549 days ago · 59 km deep · 46 km away
  15. 1.9286 km W of Adak, Alaska · 549 days ago · 82 km deep · 50 km away
  16. 2.1188 km WSW of Adak, Alaska · 550 days ago · 24 km deep · 72 km away
  17. 1.9221 km W of Adak, Alaska · 550 days ago · 13 km deep · 50 km away
  18. 2.0221 km W of Adak, Alaska · 550 days ago · 83 km deep · 43 km away
  19. 2.0231 km WSW of Adak, Alaska · 551 days ago · 56 km deep · 23 km away
  20. 1.9253 km WSW of Adak, Alaska · 551 days ago · 13 km deep · 4 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000pulw (also filed as ak0254a701jc). Read Fri, Oct 2, 2026, 2:44 AM UTC.