Alaska earthquakes

M2.5 earthquake 72 km SE of Atka, Alaska

A magnitude 2.5 earthquake struck 72 km SE of Atka, Alaska on Tue, Feb 18, 2025, 3:48 AM HAST (13:48 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.9 22 km NNW of Atka, 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
2.5 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-02-18 13:48:37 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.686° N, 173.540° W
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
2.5ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed
2.5ML, 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 7.2 km horizontally, 2.0 km in depth
Depth from
Operator assigned
Station coverage gap
302°, poorly surrounded by stations
Stations used
13

Nearby

Within 100 km, magnitude 1.5 and up: 116 in the 60 days after this one and 30 in the 30 days before it.

After

  1. 3.0108 km SE of Atka, Alaska · 592 days ago · 35 km deep · 36 km away
  2. 2.391 km SE of Atka, Alaska · 591 days ago · 40 km deep · 19 km away
  3. 3.233 km NNE of Atka, Alaska · 591 days ago · 10 km deep · 97 km away
  4. 2.069 km SSW of Atka, Alaska · 591 days ago · 21 km deep · 78 km away
  5. 2.3138 km SSE of Atka, Alaska · 589 days ago · 10 km deep · 68 km away
  6. 3.030 km N of Atka, Alaska · 588 days ago · 188 km deep · 97 km away
  7. 3.0103 km S of Atka, Alaska · 588 days ago · 35 km deep · 70 km away
  8. 2.895 km S of Atka, Alaska · 588 days ago · 35 km deep · 61 km away
  9. 2.195 km S of Atka, Alaska · 588 days ago · 15 km deep · 69 km away
  10. 2.827 km NNW of Atka, Alaska · 587 days ago · 166 km deep · 99 km away
  11. 2.4140 km ESE of Atka, Alaska · 587 days ago · 42 km deep · 97 km away
  12. 1.648 km SSW of Atka, Alaska · 587 days ago · 47 km deep · 64 km away
  13. 2.4133 km S of Atka, Alaska · 586 days ago · 6 km deep · 79 km away
  14. 2.9105 km SE of Atka, Alaska · 586 days ago · 35 km deep · 37 km away
  15. 2.553 km SSW of Atka, Alaska · 586 days ago · 35 km deep · 73 km away
  16. 2.158 km S of Atka, Alaska · 585 days ago · 45 km deep · 37 km away
  17. 1.675 km SW of Atka, Alaska · 585 days ago · 20 km deep · 88 km away
  18. 1.679 km SSW of Atka, Alaska · 585 days ago · 18 km deep · 89 km away
  19. 1.862 km SE of Atka, Alaska · 585 days ago · 21 km deep · 21 km away
  20. 2.166 km SE of Atka, Alaska · 585 days ago · 65 km deep · 7 km away
  21. 1.631 km SE of Atka, Alaska · 585 days ago · 12 km deep · 42 km away
  22. 2.893 km SSE of Atka, Alaska · 585 days ago · 35 km deep · 42 km away
  23. 2.4162 km SSE of Atka, Alaska · 585 days ago · 1 km deep · 93 km away
  24. 1.97 km NE of Atka, Alaska · 584 days ago · 129 km deep · 75 km away
  25. 1.875 km SW of Atka, Alaska · 584 days ago · 35 km deep · 98 km away
  26. 2.252 km ENE of Atka, Alaska · 584 days ago · 97 km deep · 73 km away
  27. 3.128 km NE of Atka, Alaska · 584 days ago · 180 km deep · 80 km away
  28. 1.855 km SSW of Atka, Alaska · 584 days ago · 24 km deep · 76 km away
  29. 1.923 km N of Atka, Alaska · 584 days ago · 110 km deep · 92 km away
  30. 1.639 km SSW of Atka, Alaska · 583 days ago · 24 km deep · 65 km away
  31. 3.5107 km ESE of Atka, Alaska · 583 days ago · 35 km deep · 47 km away
  32. 2.036 km ESE of Atka, Alaska · 581 days ago · 7 km deep · 41 km away
  33. 2.115 km SW of Atka, Alaska · 581 days ago · 77 km deep · 75 km away
  34. 1.831 km SE of Atka, Alaska · 581 days ago · 4 km deep · 42 km away
  35. 1.839 km WSW of Atka, Alaska · 581 days ago · 13 km deep · 93 km away
  36. 2.890 km S of Atka, Alaska · 581 days ago · 35 km deep · 60 km away
  37. 2.1106 km S of Atka, Alaska · 581 days ago · 26 km deep · 71 km away
  38. 2.136 km ESE of Atka, Alaska · 580 days ago · 5 km deep · 42 km away
  39. 2.3128 km S of Atka, Alaska · 580 days ago · 1 km deep · 82 km away
  40. 3.884 km SE of Atka, Alaska · 580 days ago · 35 km deep · 12 km away
  41. 2.163 km SW of Atka, Alaska · 579 days ago · 51 km deep · 92 km away
  42. 2.437 km SSE of Atka, Alaska · 579 days ago · 60 km deep · 42 km away
  43. 2.160 km S of Atka, Alaska · 579 days ago · 8 km deep · 56 km away
  44. 3.0152 km SSE of Atka, Alaska · 579 days ago · 10 km deep · 88 km away
  45. 2.245 km E of Atka, Alaska · 579 days ago · 28 km deep · 58 km away
  46. 2.153 km SW of Atka, Alaska · 578 days ago · 48 km deep · 86 km away
  47. 3.561 km E of Atka, Alaska · 576 days ago · 78 km deep · 57 km away
  48. 2.926 km WSW of Atka, Alaska · 574 days ago · 10 km deep · 87 km away
  49. 2.929 km SSE of Atka, Alaska · 571 days ago · 74 km deep · 47 km away
  50. 3.2129 km SSE of Atka, Alaska · 570 days ago · 35 km deep · 59 km away
  51. 2.5113 km ESE of Atka, Alaska · 570 days ago · 64 km deep · 72 km away
  52. 3.165 km SSE of Atka, Alaska · 569 days ago · 35 km deep · 10 km away
  53. 2.962 km ESE of Atka, Alaska · 568 days ago · 60 km deep · 35 km away
  54. 2.951 km SE of Atka, Alaska · 568 days ago · 74 km deep · 22 km away
  55. 1.838 km SW of Atka, Alaska · 568 days ago · 61 km deep · 79 km away
  56. 2.261 km SW of Atka, Alaska · 567 days ago · 40 km deep · 82 km away
  57. 2.963 km S of Atka, Alaska · 566 days ago · 35 km deep · 40 km away
  58. 3.054 km SSE of Atka, Alaska · 566 days ago · 35 km deep · 31 km away
  59. 2.7145 km S of Atka, Alaska · 566 days ago · 10 km deep · 92 km away
  60. 3.422 km SE of Atka, Alaska · 565 days ago · 64 km deep · 50 km away

The first 60 of 116.

Before

  1. 2.4127 km S of Atka, Alaska · 594 days ago · 5 km deep · 75 km away
  2. 2.771 km SSW of Atka, Alaska · 595 days ago · 35 km deep · 77 km away
  3. 3.395 km E of Atka, Alaska · 596 days ago · 7 km deep · 88 km away
  4. 2.278 km ESE of Atka, Alaska · 596 days ago · 57 km deep · 39 km away
  5. 2.035 km SSE of Atka, Alaska · 598 days ago · 60 km deep · 37 km away
  6. 1.848 km WSW of Atka, Alaska · 598 days ago · 68 km deep · 95 km away
  7. 1.982 km SSW of Atka, Alaska · 599 days ago · 2 km deep · 69 km away
  8. 2.170 km SSW of Atka, Alaska · 599 days ago · 17 km deep · 62 km away
  9. 3.280 km S of Atka, Alaska · 599 days ago · 35 km deep · 54 km away
  10. 2.081 km SSW of Atka, Alaska · 600 days ago · 25 km deep · 90 km away
  11. 3.0141 km S of Atka, Alaska · 603 days ago · 10 km deep · 93 km away
  12. 4.469 km ESE of Atka, Alaska · 603 days ago · 90 km deep · 47 km away
  13. 2.556 km S of Atka, Alaska · 607 days ago · 35 km deep · 55 km away
  14. 2.676 km SSE of Atka, Alaska · 607 days ago · 35 km deep · 25 km away
  15. 3.799 km SSE of Atka, Alaska · 607 days ago · 35 km deep · 31 km away
  16. 2.050 km S of Atka, Alaska · 608 days ago · 24 km deep · 53 km away
  17. 3.055 km WSW of Atka, Alaska · 608 days ago · 87 km deep · 98 km away
  18. 4.291 km SE of Atka, Alaska · 613 days ago · 25 km deep · 21 km away
  19. 3.157 km E of Atka, Alaska · 614 days ago · 102 km deep · 61 km away
  20. 2.060 km SSE of Atka, Alaska · 614 days ago · 23 km deep · 22 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000pz75 (also filed as ak025299d0is). Read Sun, Oct 4, 2026, 9:01 PM UTC.