M1.9 earthquake 66 km W of Adak, Alaska

Magnitude

1.9 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Wed, Aug 20, 2025, 8:12 AM HADT

UTC

2025-08-20 17:12:45 UTC

Depth

90.7 km (56.4 mi), intermediate-depth

Epicenter

51.809° N, 177.593° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

42

After

1. 3.468 km SW of Adak, AlaskaWed, Aug 20, 11:03 AM HADT · 408 days ago · 60 km deep · 42 km away
2. 1.9141 km WSW of Adak, AlaskaThu, Aug 21, 9:18 AM HADT · 407 days ago · 24 km deep · 84 km away
3. 3.197 km SW of Adak, AlaskaThu, Aug 21, 7:01 PM HADT · 407 days ago · 12 km deep · 51 km away
4. 2.858 km WSW of Adak, AlaskaThu, Aug 21, 8:40 PM HADT · 407 days ago · 10 km deep · 19 km away
5. 2.094 km SW of Adak, AlaskaFri, Aug 22, 10:48 AM HADT · 406 days ago · 27 km deep · 58 km away
6. 1.954 km SSE of Adak, AlaskaFri, Aug 22, 7:11 PM HADT · 406 days ago · 26 km deep · 91 km away
7. 2.6148 km WSW of Adak, AlaskaFri, Aug 22, 7:58 PM HADT · 406 days ago · 32 km deep · 91 km away
8. 2.565 km S of Adak, AlaskaSat, Aug 23, 7:15 PM HADT · 405 days ago · 35 km deep · 79 km away
9. 3.775 km SW of Adak, AlaskaSun, Aug 24, 2:12 AM HADT · 405 days ago · 40 km deep · 49 km away
10. 2.6129 km SW of Adak, AlaskaSun, Aug 24, 5:30 PM HADT · 404 days ago · 35 km deep · 76 km away
11. 3.3140 km W of Adak, AlaskaSun, Aug 24, 10:29 PM HADT · 404 days ago · 114 km deep · 74 km away
12. 1.846 km SSE of Adak, AlaskaMon, Aug 25, 6:34 AM HADT · 403 days ago · 29 km deep · 94 km away
13. 1.7130 km WSW of Adak, AlaskaMon, Aug 25, 4:34 PM HADT · 403 days ago · 7 km deep · 66 km away
14. 2.2157 km WSW of Adak, AlaskaMon, Aug 25, 5:18 PM HADT · 403 days ago · 23 km deep · 94 km away
15. 1.995 km WSW of Adak, AlaskaMon, Aug 25, 11:35 PM HADT · 403 days ago · 57 km deep · 41 km away
16. 1.967 km SSW of Adak, AlaskaTue, Aug 26, 9:32 AM HADT · 402 days ago · 33 km deep · 68 km away
17. 1.9127 km SW of Adak, AlaskaTue, Aug 26, 1:01 PM HADT · 402 days ago · 26 km deep · 79 km away
18. 2.5135 km W of Adak, AlaskaTue, Aug 26, 1:49 PM HADT · 402 days ago · 97 km deep · 69 km away
19. 1.7140 km WSW of Adak, AlaskaTue, Aug 26, 5:22 PM HADT · 402 days ago · 23 km deep · 83 km away
20. 1.897 km WSW of Adak, AlaskaTue, Aug 26, 6:07 PM HADT · 402 days ago · 54 km deep · 47 km away
21. 1.656 km WSW of Adak, AlaskaWed, Aug 27, 12:04 AM HADT · 402 days ago · 7 km deep · 12 km away
22. 1.8121 km WSW of Adak, AlaskaWed, Aug 27, 3:09 AM HADT · 402 days ago · 34 km deep · 63 km away
23. 2.96 km SSE of Adak, AlaskaWed, Aug 27, 3:46 AM HADT · 402 days ago · 75 km deep · 68 km away
24. 2.5143 km W of Adak, AlaskaWed, Aug 27, 2:21 PM HADT · 401 days ago · 102 km deep · 77 km away
25. 1.9131 km WSW of Adak, AlaskaWed, Aug 27, 6:05 PM HADT · 401 days ago · 29 km deep · 76 km away
26. 1.7157 km WSW of Adak, AlaskaThu, Aug 28, 12:06 AM HADT · 401 days ago · 18 km deep · 95 km away
27. 1.642 km SSE of Adak, AlaskaThu, Aug 28, 2:04 AM HADT · 401 days ago · 36 km deep · 91 km away
28. 1.688 km SW of Adak, AlaskaThu, Aug 28, 2:28 PM HADT · 400 days ago · 23 km deep · 47 km away
29. 2.9101 km SW of Adak, AlaskaFri, Aug 29, 6:12 PM HADT · 399 days ago · 35 km deep · 63 km away
30. 3.3109 km WSW of Adak, AlaskaFri, Aug 29, 10:12 PM HADT · 399 days ago · 13 km deep · 51 km away
31. 2.031 km SSW of Adak, AlaskaMon, Sep 1, 1:01 AM HADT · 397 days ago · 63 km deep · 61 km away
32. 1.895 km SW of Adak, AlaskaMon, Sep 1, 7:53 AM HADT · 396 days ago · 23 km deep · 48 km away
33. 1.7143 km W of Adak, AlaskaMon, Sep 1, 4:42 PM HADT · 396 days ago · 11 km deep · 77 km away
34. 1.9128 km WSW of Adak, AlaskaMon, Sep 1, 10:41 PM HADT · 396 days ago · 25 km deep · 68 km away
35. 3.340 km NNW of Adak, AlaskaTue, Sep 2, 1:25 AM HADT · 396 days ago · 173 km deep · 61 km away
36. 2.740 km SW of Adak, AlaskaTue, Sep 2, 12:30 PM HADT · 395 days ago · 77 km deep · 36 km away
37. 1.895 km SW of Adak, AlaskaWed, Sep 3, 3:45 AM HADT · 395 days ago · 27 km deep · 62 km away
38. 1.883 km SW of Adak, AlaskaWed, Sep 3, 6:13 AM HADT · 394 days ago · 22 km deep · 48 km away
39. 1.635 km NE of Adak, AlaskaTue, Sep 9, 5:54 AM HADT · 388 days ago · 19 km deep · 98 km away
40. 3.6129 km W of Adak, AlaskaThu, Sep 11, 6:45 PM HADT · 386 days ago · 10 km deep · 63 km away
41. 4.032 km NNE of Adak, AlaskaSun, Sep 14, 12:00 AM HADT · 384 days ago · 126 km deep · 89 km away · felt by 2
42. 1.622 km E of Adak, AlaskaWed, Sep 17, 5:39 PM HADT · 380 days ago · 6 km deep · 89 km away
43. 1.9159 km WSW of Adak, AlaskaFri, Sep 19, 4:52 PM HADT · 378 days ago · 30 km deep · 96 km away
44. 2.0131 km WSW of Adak, AlaskaSat, Sep 20, 5:52 PM HADT · 377 days ago · 14 km deep · 65 km away
45. 5.5122 km SW of Adak, AlaskaSun, Sep 21, 12:30 AM HADT · 377 days ago · 30 km deep · 74 km away · felt by 4 · tsunami flag
46. 3.898 km SW of Adak, AlaskaTue, Sep 23, 8:24 AM HADT · 374 days ago · 43 km deep · 64 km away
47. 1.5151 km W of Adak, AlaskaThu, Sep 25, 1:13 AM HADT · 373 days ago · 14 km deep · 85 km away
48. 2.1164 km WSW of Adak, AlaskaThu, Sep 25, 1:31 PM HADT · 372 days ago · 16 km deep · 98 km away
49. 1.788 km W of Adak, AlaskaFri, Sep 26, 1:42 AM HADT · 372 days ago · 4 km deep · 23 km away
50. 1.850 km SW of Adak, AlaskaFri, Sep 26, 10:51 PM HADT · 371 days ago · 15 km deep · 41 km away
51. 1.8129 km WSW of Adak, AlaskaSat, Sep 27, 2:18 AM HADT · 371 days ago · 26 km deep · 73 km away
52. 2.1117 km SW of Adak, AlaskaSat, Sep 27, 4:20 AM HADT · 371 days ago · 26 km deep · 71 km away
53. 2.695 km WSW of Adak, AlaskaSat, Sep 27, 10:28 PM HADT · 370 days ago · 34 km deep · 41 km away
54. 1.651 km SW of Adak, AlaskaSun, Sep 28, 5:48 PM HADT · 369 days ago · 14 km deep · 33 km away
55. 1.681 km W of Adak, AlaskaFri, Oct 3, 4:16 PM HADT · 364 days ago · 8 km deep · 17 km away
56. 2.757 km SSW of Adak, AlaskaSun, Oct 5, 8:35 AM HADT · 362 days ago · 34 km deep · 69 km away
57. 1.7103 km WSW of Adak, AlaskaSun, Oct 5, 9:19 PM HADT · 362 days ago · 16 km deep · 39 km away
58. 1.655 km W of Adak, AlaskaFri, Oct 10, 4:44 PM HADT · 357 days ago · -2 km deep · 13 km away
59. 1.975 km W of Adak, AlaskaFri, Oct 10, 11:32 PM HADT · 357 days ago · 8 km deep · 12 km away
60. 2.6144 km WSW of Adak, AlaskaWed, Oct 15, 12:08 AM HADT · 353 days ago · 80 km deep · 78 km away

The first 60 of 63.

Before

1. 1.569 km SSW of Adak, AlaskaWed, Aug 20, 5:17 AM HADT · 409 days ago · 26 km deep · 74 km away
2. 1.8133 km SW of Adak, AlaskaWed, Aug 20, 1:58 AM HADT · 409 days ago · 21 km deep · 83 km away
3. 1.8109 km WSW of Adak, AlaskaWed, Aug 20, 12:28 AM HADT · 409 days ago · 13 km deep · 46 km away
4. 1.854 km S of Adak, AlaskaTue, Aug 19, 3:59 PM HADT · 409 days ago · 26 km deep · 88 km away
5. 1.6111 km WSW of Adak, AlaskaTue, Aug 19, 3:56 PM HADT · 409 days ago · 7 km deep · 50 km away
6. 1.853 km SSE of Adak, AlaskaTue, Aug 19, 6:29 AM HADT · 409 days ago · 24 km deep · 95 km away
7. 1.7153 km W of Adak, AlaskaMon, Aug 18, 7:52 PM HADT · 410 days ago · 78 km deep · 87 km away
8. 2.562 km SSW of Adak, AlaskaMon, Aug 18, 7:35 PM HADT · 410 days ago · 43 km deep · 58 km away
9. 1.783 km SW of Adak, AlaskaMon, Aug 18, 6:04 PM HADT · 410 days ago · 39 km deep · 41 km away
10. 1.564 km SSW of Adak, AlaskaMon, Aug 18, 7:29 AM HADT · 410 days ago · 21 km deep · 72 km away
11. 1.5120 km WSW of Adak, AlaskaMon, Aug 18, 6:14 AM HADT · 410 days ago · 7 km deep · 61 km away
12. 1.7114 km WSW of Adak, AlaskaMon, Aug 18, 2:50 AM HADT · 411 days ago · 10 km deep · 52 km away
13. 3.7157 km WSW of Adak, AlaskaSun, Aug 17, 12:10 PM HADT · 411 days ago · 28 km deep · 93 km away
14. 1.587 km WSW of Adak, AlaskaSat, Aug 16, 8:52 PM HADT · 412 days ago · 62 km deep · 33 km away
15. 1.665 km WSW of Adak, AlaskaSat, Aug 16, 8:43 PM HADT · 412 days ago · 69 km deep · 15 km away
16. 1.779 km SW of Adak, AlaskaSat, Aug 16, 8:41 PM HADT · 412 days ago · 24 km deep · 38 km away
17. 2.0140 km W of Adak, AlaskaSat, Aug 16, 12:28 PM HADT · 412 days ago · 7 km deep · 73 km away
18. 1.6136 km SW of Adak, AlaskaSat, Aug 16, 9:16 AM HADT · 412 days ago · 26 km deep · 85 km away
19. 1.6139 km SW of Adak, AlaskaSat, Aug 16, 9:16 AM HADT · 412 days ago · 26 km deep · 88 km away
20. 3.716 km SE of Adak, AlaskaSat, Aug 16, 12:49 AM HADT · 413 days ago · 100 km deep · 79 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak025anyvima. Read Sat, Oct 3, 2026, 2:15 AM UTC.