Alaska earthquakes

M1.8 earthquake 92 km SSW of Unalaska, Alaska

A magnitude 1.8 earthquake struck 92 km SSW of Unalaska, Alaska on Sun, Aug 3, 2025, 12:02 AM AKDT (08:02 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M3.7 89 km E of Nikolski, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.8 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2025-08-03 08:02:34 UTC
Depth
25.6 km (15.9 mi), shallow
Epicenter
53.084° N, 166.942° 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
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 69 in the 60 days after this one and 71 in the 30 days before it.

After

  1. 1.891 km SSW of Unalaska, Alaska · 426 days ago · 26 km deep · 3 km away
  2. 2.831 km SE of Unalaska, Alaska · 426 days ago · 80 km deep · 84 km away
  3. 1.574 km SW of Unalaska, Alaska · 425 days ago · 13 km deep · 57 km away
  4. 1.8106 km SE of Unalaska, Alaska · 425 days ago · 8 km deep · 88 km away
  5. 1.960 km NE of Nikolski, Alaska · 424 days ago · 71 km deep · 84 km away
  6. 2.0154 km S of Unalaska, Alaska · 423 days ago · 15 km deep · 70 km away
  7. 1.699 km E of Nikolski, Alaska · 423 days ago · 37 km deep · 35 km away
  8. 3.484 km S of Unalaska, Alaska · 423 days ago · 19 km deep · 19 km away
  9. 1.7122 km ESE of Nikolski, Alaska · 423 days ago · 17 km deep · 48 km away
  10. 2.0106 km SE of Unalaska, Alaska · 423 days ago · 7 km deep · 92 km away
  11. 1.659 km SE of Unalaska, Alaska · 422 days ago · 39 km deep · 93 km away
  12. 1.6109 km SSW of Unalaska, Alaska · 422 days ago · 18 km deep · 22 km away
  13. 1.537 km S of Unalaska, Alaska · 422 days ago · 47 km deep · 58 km away
  14. 1.581 km SSW of Unalaska, Alaska · 422 days ago · 15 km deep · 11 km away
  15. 1.988 km SSW of Unalaska, Alaska · 422 days ago · 26 km deep · 4 km away
  16. 1.649 km SSW of Unalaska, Alaska · 421 days ago · 68 km deep · 46 km away
  17. 1.750 km SW of Unalaska, Alaska · 421 days ago · 14 km deep · 53 km away
  18. 1.8123 km ESE of Nikolski, Alaska · 421 days ago · 15 km deep · 48 km away
  19. 1.876 km SW of Unalaska, Alaska · 420 days ago · 18 km deep · 49 km away
  20. 3.325 km SE of Unalaska, Alaska · 420 days ago · 78 km deep · 87 km away
  21. 1.886 km SSW of Unalaska, Alaska · 419 days ago · 47 km deep · 7 km away
  22. 2.0125 km ESE of Nikolski, Alaska · 419 days ago · 16 km deep · 59 km away
  23. 3.438 km S of Unalaska, Alaska · 417 days ago · 69 km deep · 56 km away
  24. 3.490 km SSW of Unalaska, Alaska · 417 days ago · 35 km deep · 4 km away
  25. 1.749 km SW of Unalaska, Alaska · 417 days ago · 16 km deep · 53 km away
  26. 1.749 km SW of Unalaska, Alaska · 417 days ago · 19 km deep · 54 km away
  27. 1.950 km SW of Unalaska, Alaska · 416 days ago · 13 km deep · 49 km away
  28. 3.329 km SE of Unalaska, Alaska · 416 days ago · 81 km deep · 88 km away
  29. 2.049 km SW of Unalaska, Alaska · 415 days ago · 17 km deep · 51 km away
  30. 1.991 km SSW of Unalaska, Alaska · 414 days ago · 31 km deep · 3 km away
  31. 1.527 km SE of Unalaska, Alaska · 414 days ago · 69 km deep · 79 km away
  32. 1.635 km SSW of Unalaska, Alaska · 414 days ago · 71 km deep · 57 km away
  33. 3.469 km NE of Nikolski, Alaska · 412 days ago · 121 km deep · 89 km away
  34. 1.984 km SSW of Unalaska, Alaska · 412 days ago · 28 km deep · 9 km away
  35. 1.554 km SW of Unalaska, Alaska · 412 days ago · 16 km deep · 55 km away
  36. 1.593 km SSW of Unalaska, Alaska · 411 days ago · 26 km deep · 9 km away
  37. 1.6106 km ESE of Nikolski, Alaska · 411 days ago · 2 km deep · 58 km away
  38. 1.596 km SSW of Unalaska, Alaska · 411 days ago · 26 km deep · 10 km away
  39. 1.7101 km SSW of Unalaska, Alaska · 411 days ago · 32 km deep · 30 km away
  40. 2.634 km SW of Unalaska, Alaska · 411 days ago · 79 km deep · 65 km away
  41. 1.876 km S of Unalaska, Alaska · 411 days ago · 50 km deep · 18 km away
  42. 1.781 km SSE of Unalaska, Alaska · 410 days ago · 21 km deep · 59 km away
  43. 1.874 km ESE of Nikolski, Alaska · 407 days ago · 25 km deep · 72 km away
  44. 1.7110 km ESE of Nikolski, Alaska · 407 days ago · 11 km deep · 73 km away
  45. 2.7113 km SE of Nikolski, Alaska · 407 days ago · 14 km deep · 86 km away
  46. 3.166 km SE of Unalaska, Alaska · 407 days ago · 35 km deep · 81 km away
  47. 2.674 km SSE of Unalaska, Alaska · 406 days ago · 35 km deep · 48 km away
  48. 1.7110 km E of Nikolski, Alaska · 406 days ago · 38 km deep · 29 km away
  49. 1.875 km SE of Unalaska, Alaska · 405 days ago · 39 km deep · 94 km away
  50. 1.587 km SSW of Unalaska, Alaska · 405 days ago · 26 km deep · 7 km away
  51. 2.624 km SE of Unalaska, Alaska · 404 days ago · 74 km deep · 87 km away
  52. 1.860 km SSE of Unalaska, Alaska · 404 days ago · 53 km deep · 63 km away
  53. 1.630 km SSW of Unalaska, Alaska · 403 days ago · 78 km deep · 61 km away
  54. 1.850 km SW of Unalaska, Alaska · 402 days ago · 18 km deep · 53 km away
  55. 2.2138 km ESE of Nikolski, Alaska · 402 days ago · 7 km deep · 86 km away
  56. 1.921 km ESE of Unalaska, Alaska · 401 days ago · 79 km deep · 91 km away
  57. 1.926 km SE of Unalaska, Alaska · 399 days ago · 72 km deep · 88 km away
  58. 2.3103 km E of Nikolski, Alaska · 399 days ago · 47 km deep · 38 km away
  59. 2.593 km WSW of Unalaska, Alaska · 398 days ago · 100 km deep · 75 km away
  60. 1.9102 km SE of Unalaska, Alaska · 397 days ago · 13 km deep · 89 km away

The first 60 of 69.

Before

  1. 2.026 km SE of Unalaska, Alaska · 427 days ago · 79 km deep · 87 km away
  2. 2.046 km WSW of Dutch Harbor, Alaska · 427 days ago · 112 km deep · 79 km away
  3. 1.941 km ESE of Nikolski, Alaska · 428 days ago · 51 km deep · 92 km away
  4. 1.667 km SE of Unalaska, Alaska · 428 days ago · 42 km deep · 88 km away
  5. 1.660 km ESE of Nikolski, Alaska · 428 days ago · 24 km deep · 76 km away
  6. 3.788 km SSE of Unalaska, Alaska · 429 days ago · 35 km deep · 61 km away
  7. 3.120 km SE of Unalaska, Alaska · 429 days ago · 71 km deep · 82 km away
  8. 1.973 km S of Unalaska, Alaska · 430 days ago · 35 km deep · 34 km away
  9. 2.810 km ENE of Unalaska, Alaska · 431 days ago · 87 km deep · 98 km away
  10. 1.676 km ESE of Nikolski, Alaska · 431 days ago · 34 km deep · 73 km away
  11. 1.517 km ESE of Unalaska, Alaska · 431 days ago · 81 km deep · 91 km away
  12. 1.813 km ESE of Unalaska, Alaska · 432 days ago · 85 km deep · 94 km away
  13. 1.880 km E of Nikolski, Alaska · 432 days ago · 36 km deep · 56 km away
  14. 1.628 km SE of Unalaska, Alaska · 432 days ago · 78 km deep · 82 km away
  15. 2.551 km SSW of Unalaska, Alaska · 433 days ago · 68 km deep · 44 km away
  16. 2.024 km SE of Unalaska, Alaska · 433 days ago · 81 km deep · 86 km away
  17. 1.811 km E of Unalaska, Alaska · 433 days ago · 82 km deep · 96 km away
  18. 2.126 km SE of Unalaska, Alaska · 433 days ago · 80 km deep · 84 km away
  19. 3.123 km SE of Unalaska, Alaska · 433 days ago · 87 km deep · 88 km away
  20. 2.171 km SSW of Unalaska, Alaska · 433 days ago · 45 km deep · 21 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0259vpble5. Read Sat, Oct 3, 2026, 1:27 PM UTC.