Alaska earthquakes

M1.9 earthquake 98 km SSW of Unalaska, Alaska

A magnitude 1.9 earthquake struck 98 km SSW of Unalaska, Alaska on Thu, Feb 20, 2025, 7:53 PM AKST (04:53 UTC), 17 km (10 mi) below the surface.

A larger quake followed: M3.9 82 km SSW of Unalaska, Alaska. This one was a foreshock.

Unalaska forecastMore in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.9 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2025-02-21 04:53:39 UTC
Depth
16.7 km (10.4 mi), shallow
Epicenter
53.012° N, 166.896° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used
30

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 173 in the 60 days after this one and 106 in the 30 days before it.

After

  1. 2.980 km SW of Unalaska, Alaska · 591 days ago · 63 km deep · 43 km away
  2. 1.9130 km S of Unalaska, Alaska · 591 days ago · 6 km deep · 35 km away
  3. 2.619 km SSE of Unalaska, Alaska · 591 days ago · 89 km deep · 86 km away
  4. 1.660 km SE of Unalaska, Alaska · 590 days ago · 17 km deep · 95 km away
  5. 1.778 km S of Unalaska, Alaska · 590 days ago · 26 km deep · 21 km away
  6. 1.681 km SSW of Unalaska, Alaska · 590 days ago · 40 km deep · 17 km away
  7. 1.548 km S of Unalaska, Alaska · 590 days ago · 54 km deep · 55 km away
  8. 2.051 km SW of Unalaska, Alaska · 590 days ago · 7 km deep · 70 km away
  9. 1.993 km SSW of Unalaska, Alaska · 589 days ago · 23 km deep · 7 km away
  10. 1.9127 km S of Unalaska, Alaska · 589 days ago · 5 km deep · 34 km away
  11. 1.793 km S of Unalaska, Alaska · 589 days ago · 6 km deep · 18 km away
  12. 1.752 km SSE of Unalaska, Alaska · 589 days ago · 49 km deep · 74 km away
  13. 1.650 km S of Unalaska, Alaska · 589 days ago · 35 km deep · 55 km away
  14. 3.683 km ENE of Nikolski, Alaska · 589 days ago · 50 km deep · 52 km away
  15. 1.86 km W of Dutch Harbor, Alaska · 588 days ago · 105 km deep · 99 km away
  16. 1.788 km SW of Unalaska, Alaska · 588 days ago · 62 km deep · 38 km away
  17. 2.638 km SSE of Unalaska, Alaska · 588 days ago · 65 km deep · 72 km away
  18. 2.5139 km ESE of Nikolski, Alaska · 588 days ago · 5 km deep · 47 km away
  19. 2.947 km ENE of Nikolski, Alaska · 588 days ago · 68 km deep · 89 km away
  20. 2.765 km SE of Unalaska, Alaska · 587 days ago · 35 km deep · 81 km away
  21. 1.753 km SSW of Unalaska, Alaska · 587 days ago · 87 km deep · 47 km away
  22. 1.632 km SSW of Unalaska, Alaska · 587 days ago · 99 km deep · 69 km away
  23. 2.087 km SE of Nikolski, Alaska · 586 days ago · 25 km deep · 98 km away
  24. 1.874 km S of Unalaska, Alaska · 586 days ago · 26 km deep · 30 km away
  25. 1.790 km SSW of Unalaska, Alaska · 585 days ago · 35 km deep · 11 km away
  26. 1.8100 km E of Nikolski, Alaska · 584 days ago · 42 km deep · 34 km away
  27. 1.618 km SSE of Unalaska, Alaska · 584 days ago · 72 km deep · 83 km away
  28. 1.785 km SW of Unalaska, Alaska · 584 days ago · 63 km deep · 40 km away
  29. 1.686 km SSW of Unalaska, Alaska · 583 days ago · 47 km deep · 19 km away
  30. 2.784 km ESE of Nikolski, Alaska · 582 days ago · 35 km deep · 55 km away
  31. 2.142 km ESE of Nikolski, Alaska · 582 days ago · 38 km deep · 92 km away
  32. 1.633 km SW of Unalaska, Alaska · 581 days ago · 76 km deep · 69 km away
  33. 3.056 km S of Unalaska, Alaska · 581 days ago · 54 km deep · 49 km away
  34. 2.562 km ENE of Nikolski, Alaska · 581 days ago · 64 km deep · 76 km away
  35. 1.876 km SSE of Unalaska, Alaska · 580 days ago · 21 km deep · 59 km away
  36. 2.0138 km ESE of Nikolski, Alaska · 580 days ago · 13 km deep · 49 km away
  37. 1.985 km SSW of Unalaska, Alaska · 579 days ago · 26 km deep · 14 km away
  38. 2.290 km SW of Unalaska, Alaska · 579 days ago · 61 km deep · 35 km away
  39. 1.953 km SW of Unalaska, Alaska · 579 days ago · 64 km deep · 65 km away
  40. 3.288 km SW of Unalaska, Alaska · 579 days ago · 78 km deep · 53 km away
  41. 1.769 km SSE of Unalaska, Alaska · 578 days ago · 23 km deep · 71 km away
  42. 1.545 km S of Unalaska, Alaska · 578 days ago · 25 km deep · 57 km away
  43. 1.673 km SW of Unalaska, Alaska · 578 days ago · 13 km deep · 51 km away
  44. 1.767 km SW of Unalaska, Alaska · 578 days ago · 10 km deep · 59 km away
  45. 2.0100 km E of Nikolski, Alaska · 578 days ago · 39 km deep · 36 km away
  46. 1.889 km SSW of Unalaska, Alaska · 578 days ago · 26 km deep · 13 km away
  47. 2.065 km SE of Unalaska, Alaska · 578 days ago · 36 km deep · 90 km away
  48. 1.873 km S of Akutan, Alaska · 577 days ago · 43 km deep · 99 km away
  49. 2.273 km SE of Unalaska, Alaska · 577 days ago · 25 km deep · 93 km away
  50. 2.090 km SSW of Unalaska, Alaska · 577 days ago · 19 km deep · 11 km away
  51. 2.570 km SE of Unalaska, Alaska · 576 days ago · 35 km deep · 76 km away
  52. 2.8157 km SSE of Unalaska, Alaska · 576 days ago · 10 km deep · 97 km away
  53. 2.3133 km S of Unalaska, Alaska · 576 days ago · 26 km deep · 36 km away
  54. 2.5135 km ESE of Nikolski, Alaska · 575 days ago · 10 km deep · 51 km away
  55. 2.284 km E of Nikolski, Alaska · 575 days ago · 58 km deep · 48 km away
  56. 2.996 km E of Nikolski, Alaska · 575 days ago · 35 km deep · 40 km away
  57. 2.280 km SSW of Unalaska, Alaska · 574 days ago · 26 km deep · 20 km away
  58. 3.477 km ENE of Nikolski, Alaska · 574 days ago · 55 km deep · 58 km away
  59. 1.748 km SW of Unalaska, Alaska · 574 days ago · 16 km deep · 62 km away
  60. 1.882 km SSW of Unalaska, Alaska · 572 days ago · 22 km deep · 17 km away

The first 60 of 173.

Before

  1. 1.878 km S of Unalaska, Alaska · 591 days ago · 23 km deep · 22 km away
  2. 2.171 km E of Nikolski, Alaska · 592 days ago · 53 km deep · 61 km away
  3. 1.537 km ESE of Unalaska, Alaska · 592 days ago · 28 km deep · 95 km away
  4. 3.1125 km S of Unalaska, Alaska · 592 days ago · 10 km deep · 30 km away
  5. 1.970 km SW of Unalaska, Alaska · 592 days ago · 25 km deep · 44 km away
  6. 1.863 km S of Unalaska, Alaska · 593 days ago · 47 km deep · 49 km away
  7. 1.876 km SW of Unalaska, Alaska · 594 days ago · 13 km deep · 52 km away
  8. 2.883 km SE of Unalaska, Alaska · 595 days ago · 35 km deep · 89 km away
  9. 1.782 km SW of Unalaska, Alaska · 595 days ago · 29 km deep · 50 km away
  10. 2.283 km SW of Unalaska, Alaska · 596 days ago · 71 km deep · 54 km away
  11. 1.9111 km S of Unalaska, Alaska · 597 days ago · 6 km deep · 16 km away
  12. 1.989 km SW of Unalaska, Alaska · 597 days ago · 64 km deep · 34 km away
  13. 1.737 km SSW of Unalaska, Alaska · 597 days ago · 69 km deep · 61 km away
  14. 1.861 km SW of Unalaska, Alaska · 597 days ago · 74 km deep · 51 km away
  15. 1.564 km SE of Unalaska, Alaska · 597 days ago · 22 km deep · 91 km away
  16. 2.179 km SSE of Unalaska, Alaska · 598 days ago · 25 km deep · 60 km away
  17. 1.976 km SSE of Unalaska, Alaska · 598 days ago · 19 km deep · 64 km away
  18. 2.395 km SE of Nikolski, Alaska · 599 days ago · 14 km deep · 98 km away
  19. 2.864 km SW of Unalaska, Alaska · 599 days ago · 85 km deep · 56 km away
  20. 1.972 km ENE of Nikolski, Alaska · 599 days ago · 71 km deep · 75 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0252e2n81u. Read Mon, Oct 5, 2026, 7:47 AM UTC.