M1.8 earthquake 13 km W of Adak, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Thu, Jul 31, 2025, 10:35 PM HADT

UTC

2025-08-01 07:35:45 UTC

Depth

-1.8 km (-1.1 mi), shallow

Epicenter

51.855° N, 176.822° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.9 km horizontally, 0.5 km in depth

Magnitude uncertainty

±0.16

Depth from

From location

Station coverage gap

163°

Stations used

8

After

1. 3.295 km SW of Adak, AlaskaFri, Aug 1, 1:25 AM HADT · 427 days ago · 35 km deep · 85 km away
2. 2.672 km ESE of Adak, AlaskaFri, Aug 1, 2:32 AM HADT · 427 days ago · 35 km deep · 84 km away
3. 2.042 km S of Adak, AlaskaFri, Aug 1, 5:06 AM HADT · 427 days ago · 26 km deep · 41 km away
4. 3.293 km SSE of Adak, AlaskaSat, Aug 2, 6:47 AM HADT · 426 days ago · 10 km deep · 96 km away
5. 3.375 km SSE of Adak, AlaskaSat, Aug 2, 2:49 PM HADT · 426 days ago · 35 km deep · 79 km away
6. 1.963 km SE of Adak, AlaskaSat, Aug 2, 11:57 PM HADT · 425 days ago · 24 km deep · 73 km away
7. 2.658 km ESE of Adak, AlaskaSun, Aug 3, 3:14 AM HADT · 425 days ago · 44 km deep · 68 km away
8. 2.577 km SW of Adak, AlaskaSun, Aug 3, 6:24 PM HADT · 425 days ago · 35 km deep · 67 km away
9. 2.874 km ENE of Adak, AlaskaSun, Aug 3, 6:37 PM HADT · 425 days ago · 179 km deep · 87 km away
10. 1.653 km S of Adak, AlaskaMon, Aug 4, 1:09 AM HADT · 424 days ago · 22 km deep · 55 km away
11. 1.660 km SSW of Adak, AlaskaMon, Aug 4, 7:32 AM HADT · 424 days ago · 31 km deep · 53 km away
12. 1.791 km SW of Adak, AlaskaMon, Aug 4, 8:41 AM HADT · 424 days ago · 31 km deep · 80 km away
13. 1.654 km SSW of Adak, AlaskaMon, Aug 4, 11:48 AM HADT · 424 days ago · 33 km deep · 51 km away
14. 2.550 km SE of Adak, AlaskaMon, Aug 4, 3:56 PM HADT · 424 days ago · 35 km deep · 59 km away
15. 1.9105 km WSW of Adak, AlaskaMon, Aug 4, 4:19 PM HADT · 424 days ago · 44 km deep · 93 km away
16. 1.612 km NE of Adak, AlaskaMon, Aug 4, 8:46 PM HADT · 424 days ago · 84 km deep · 24 km away
17. 4.854 km W of Adak, AlaskaTue, Aug 5, 2:04 AM HADT · 423 days ago · 87 km deep · 42 km away · felt by 4
18. 1.649 km WSW of Adak, AlaskaTue, Aug 5, 2:58 AM HADT · 423 days ago · 77 km deep · 37 km away
19. 2.569 km SSE of Adak, AlaskaTue, Aug 5, 6:07 AM HADT · 423 days ago · 34 km deep · 73 km away
20. 3.198 km WSW of Adak, AlaskaTue, Aug 5, 9:51 AM HADT · 423 days ago · 58 km deep · 86 km away
21. 1.961 km SE of Adak, AlaskaTue, Aug 5, 11:40 AM HADT · 423 days ago · 26 km deep · 68 km away
22. 1.9112 km WSW of Adak, AlaskaWed, Aug 6, 7:57 AM HADT · 422 days ago · 13 km deep · 99 km away
23. 1.568 km ENE of Adak, AlaskaWed, Aug 6, 11:03 AM HADT · 422 days ago · 18 km deep · 81 km away
24. 3.0100 km SW of Adak, AlaskaWed, Aug 6, 1:11 PM HADT · 422 days ago · 35 km deep · 90 km away
25. 1.854 km SSE of Adak, AlaskaWed, Aug 6, 3:27 PM HADT · 422 days ago · 26 km deep · 60 km away
26. 1.962 km SE of Adak, AlaskaWed, Aug 6, 11:53 PM HADT · 421 days ago · 26 km deep · 71 km away
27. 2.690 km SSE of Adak, AlaskaThu, Aug 7, 1:43 AM HADT · 421 days ago · 10 km deep · 95 km away
28. 2.068 km SSW of Adak, AlaskaThu, Aug 7, 2:01 AM HADT · 421 days ago · 28 km deep · 62 km away
29. 1.647 km SSW of Adak, AlaskaThu, Aug 7, 1:22 PM HADT · 421 days ago · 29 km deep · 40 km away
30. 1.961 km SE of Adak, AlaskaThu, Aug 7, 6:37 PM HADT · 421 days ago · 23 km deep · 68 km away
31. 1.978 km SW of Adak, AlaskaThu, Aug 7, 8:20 PM HADT · 421 days ago · 39 km deep · 67 km away
32. 2.270 km SW of Adak, AlaskaThu, Aug 7, 11:47 PM HADT · 420 days ago · 37 km deep · 62 km away
33. 2.673 km SSW of Adak, AlaskaFri, Aug 8, 5:49 AM HADT · 420 days ago · 35 km deep · 67 km away
34. 3.155 km SSE of Adak, AlaskaFri, Aug 8, 6:38 AM HADT · 420 days ago · 35 km deep · 59 km away
35. 1.813 km SW of Adak, AlaskaFri, Aug 8, 12:30 PM HADT · 420 days ago · 76 km deep · 6 km away
36. 1.965 km SSW of Adak, AlaskaFri, Aug 8, 7:10 PM HADT · 420 days ago · 13 km deep · 59 km away
37. 2.576 km SW of Adak, AlaskaSat, Aug 9, 2:58 AM HADT · 419 days ago · 46 km deep · 65 km away
38. 2.287 km N of Adak, AlaskaSat, Aug 9, 9:51 AM HADT · 419 days ago · 165 km deep · 90 km away
39. 1.735 km ENE of Adak, AlaskaSat, Aug 9, 4:58 PM HADT · 419 days ago · 107 km deep · 48 km away
40. 1.740 km SSE of Adak, AlaskaSat, Aug 9, 6:01 PM HADT · 419 days ago · 31 km deep · 46 km away
41. 1.995 km W of Adak, AlaskaSat, Aug 9, 11:30 PM HADT · 418 days ago · 22 km deep · 82 km away
42. 1.955 km SE of Adak, AlaskaSun, Aug 10, 12:31 AM HADT · 418 days ago · 26 km deep · 63 km away
43. 1.513 km SSE of Adak, AlaskaSun, Aug 10, 4:00 AM HADT · 418 days ago · 81 km deep · 21 km away
44. 2.5106 km SSW of Adak, AlaskaSun, Aug 10, 5:31 AM HADT · 418 days ago · 10 km deep · 100 km away
45. 3.752 km SSE of Adak, AlaskaSun, Aug 10, 3:15 PM HADT · 418 days ago · 35 km deep · 58 km away
46. 3.161 km NE of Adak, AlaskaMon, Aug 11, 10:47 AM HADT · 417 days ago · 202 km deep · 72 km away
47. 2.068 km SE of Adak, AlaskaTue, Aug 12, 12:36 AM HADT · 416 days ago · 38 km deep · 78 km away
48. 1.874 km SSE of Adak, AlaskaTue, Aug 12, 1:59 AM HADT · 416 days ago · 13 km deep · 79 km away
49. 1.955 km SSE of Adak, AlaskaTue, Aug 12, 3:59 AM HADT · 416 days ago · 27 km deep · 60 km away
50. 1.9110 km WSW of Adak, AlaskaTue, Aug 12, 6:41 AM HADT · 416 days ago · 54 km deep · 98 km away
51. 1.590 km WSW of Adak, AlaskaTue, Aug 12, 3:11 PM HADT · 416 days ago · 31 km deep · 78 km away
52. 1.718 km E of Adak, AlaskaTue, Aug 12, 4:18 PM HADT · 416 days ago · 90 km deep · 32 km away
53. 1.663 km SE of Adak, AlaskaWed, Aug 13, 1:11 AM HADT · 415 days ago · 25 km deep · 72 km away
54. 1.8110 km WSW of Adak, AlaskaWed, Aug 13, 7:16 AM HADT · 415 days ago · 25 km deep · 97 km away
55. 1.974 km SSE of Adak, AlaskaWed, Aug 13, 9:08 AM HADT · 415 days ago · 25 km deep · 77 km away
56. 1.556 km SSW of Adak, AlaskaWed, Aug 13, 1:38 PM HADT · 415 days ago · 32 km deep · 49 km away
57. 1.765 km ESE of Adak, AlaskaWed, Aug 13, 4:07 PM HADT · 415 days ago · 23 km deep · 76 km away
58. 1.562 km SE of Adak, AlaskaThu, Aug 14, 12:16 AM HADT · 414 days ago · 26 km deep · 70 km away
59. 1.946 km NE of Adak, AlaskaThu, Aug 14, 4:20 AM HADT · 414 days ago · 126 km deep · 57 km away
60. 2.716 km SSE of Adak, AlaskaThu, Aug 14, 10:39 AM HADT · 414 days ago · 16 km deep · 23 km away

The first 60 of 147.

Before

1. 1.656 km SSE of Adak, AlaskaThu, Jul 31, 3:54 AM HADT · 428 days ago · 24 km deep · 63 km away
2. 1.968 km SSE of Adak, AlaskaThu, Jul 31, 1:29 AM HADT · 428 days ago · 21 km deep · 71 km away
3. 2.565 km SSE of Adak, AlaskaWed, Jul 30, 8:17 PM HADT · 429 days ago · 35 km deep · 67 km away
4. 1.75 km N of Adak, AlaskaWed, Jul 30, 8:53 AM HADT · 429 days ago · 7 km deep · 15 km away
5. 1.870 km ENE of Adak, AlaskaWed, Jul 30, 3:41 AM HADT · 429 days ago · 148 km deep · 82 km away
6. 3.190 km WSW of Adak, AlaskaTue, Jul 29, 8:11 PM HADT · 430 days ago · 41 km deep · 79 km away
7. 3.182 km SW of Adak, AlaskaTue, Jul 29, 2:30 AM HADT · 430 days ago · 35 km deep · 74 km away
8. 2.981 km SW of Adak, AlaskaTue, Jul 29, 2:24 AM HADT · 430 days ago · 47 km deep · 72 km away
9. 2.558 km SW of Adak, AlaskaTue, Jul 29, 1:21 AM HADT · 430 days ago · 46 km deep · 48 km away
10. 3.865 km SW of Adak, AlaskaMon, Jul 28, 8:03 PM HADT · 431 days ago · 38 km deep · 57 km away
11. 1.583 km WSW of Adak, AlaskaMon, Jul 28, 12:21 PM HADT · 431 days ago · 67 km deep · 70 km away
12. 1.56 km NE of Adak, AlaskaMon, Jul 28, 7:24 AM HADT · 431 days ago · 8 km deep · 19 km away
13. 1.764 km SSE of Adak, AlaskaMon, Jul 28, 2:44 AM HADT · 431 days ago · 33 km deep · 70 km away
14. 2.567 km SSE of Adak, AlaskaSun, Jul 27, 9:22 AM HADT · 432 days ago · 35 km deep · 71 km away
15. 2.551 km NNE of Adak, AlaskaSun, Jul 27, 8:15 AM HADT · 432 days ago · 226 km deep · 58 km away
16. 1.968 km SSE of Adak, AlaskaSun, Jul 27, 6:13 AM HADT · 432 days ago · 20 km deep · 71 km away
17. 1.969 km SSE of Adak, AlaskaSun, Jul 27, 5:48 AM HADT · 432 days ago · 25 km deep · 72 km away
18. 1.634 km SSE of Adak, AlaskaSun, Jul 27, 1:41 AM HADT · 432 days ago · 51 km deep · 39 km away
19. 4.083 km W of Adak, AlaskaSat, Jul 26, 9:31 PM HADT · 433 days ago · 84 km deep · 70 km away
20. 1.9112 km WSW of Adak, AlaskaSat, Jul 26, 9:05 PM HADT · 433 days ago · 5 km deep · 100 km away

From the USGS Earthquake Hazards Program and its partner networks, event av93697813. Read Fri, Oct 2, 2026, 7:42 PM UTC.