M1.7 earthquake 66 km SW of Unalaska, Alaska

Magnitude

1.7 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Mon, Jul 21, 2025, 5:07 PM AKDT

UTC

2025-07-22 01:07:23 UTC

Depth

75.7 km (47.0 mi), intermediate-depth

Epicenter

53.501° N, 167.310° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

21

• Unalaska, AlaskaPopulation 4,491. Forecast66 kmSW

After

1. 2.787 km SSW of Unalaska, AlaskaTue, Jul 22, 7:03 AM AKDT · 437 days ago · 26 km deep · 49 km away
2. 1.574 km WSW of Unalaska, AlaskaTue, Jul 22, 9:30 AM AKDT · 437 days ago · 74 km deep · 13 km away
3. 3.442 km ESE of Nikolski, AlaskaWed, Jul 23, 3:06 PM AKDT · 435 days ago · 44 km deep · 99 km away
4. 2.053 km ESE of Nikolski, AlaskaWed, Jul 23, 3:09 PM AKDT · 435 days ago · 33 km deep · 99 km away
5. 2.847 km ESE of Nikolski, AlaskaWed, Jul 23, 3:33 PM AKDT · 435 days ago · 52 km deep · 98 km away
6. 1.677 km SW of Unalaska, AlaskaThu, Jul 24, 12:21 AM AKDT · 435 days ago · 14 km deep · 13 km away
7. 1.778 km S of Unalaska, AlaskaThu, Jul 24, 4:36 AM AKDT · 435 days ago · 44 km deep · 52 km away
8. 1.882 km ENE of Nikolski, AlaskaThu, Jul 24, 10:56 AM AKDT · 435 days ago · 97 km deep · 39 km away
9. 1.850 km SSE of Unalaska, AlaskaFri, Jul 25, 9:44 AM AKDT · 434 days ago · 49 km deep · 78 km away
10. 1.676 km SW of Unalaska, AlaskaSat, Jul 26, 7:37 PM AKDT · 432 days ago · 18 km deep · 12 km away
11. 1.598 km SSW of Unalaska, AlaskaSat, Jul 26, 9:58 PM AKDT · 432 days ago · 25 km deep · 42 km away
12. 2.171 km SSW of Unalaska, AlaskaSun, Jul 27, 3:58 AM AKDT · 432 days ago · 45 km deep · 45 km away
13. 5.323 km N of Dutch Harbor, AlaskaSun, Jul 27, 2:47 PM AKDT · 431 days ago · 83 km deep · 81 km away · felt by 30 · tsunami flag
14. 3.123 km SE of Unalaska, AlaskaSun, Jul 27, 2:52 PM AKDT · 431 days ago · 87 km deep · 76 km away
15. 2.126 km SE of Unalaska, AlaskaSun, Jul 27, 4:29 PM AKDT · 431 days ago · 80 km deep · 75 km away
16. 1.811 km E of Unalaska, AlaskaSun, Jul 27, 4:32 PM AKDT · 431 days ago · 82 km deep · 75 km away
17. 2.024 km SE of Unalaska, AlaskaSun, Jul 27, 4:37 PM AKDT · 431 days ago · 81 km deep · 75 km away
18. 2.551 km SSW of Unalaska, AlaskaSun, Jul 27, 4:43 PM AKDT · 431 days ago · 68 km deep · 26 km away
19. 1.628 km SE of Unalaska, AlaskaSun, Jul 27, 7:03 PM AKDT · 431 days ago · 78 km deep · 74 km away
20. 1.880 km E of Nikolski, AlaskaMon, Jul 28, 5:13 AM AKDT · 431 days ago · 36 km deep · 77 km away
21. 1.813 km ESE of Unalaska, AlaskaMon, Jul 28, 5:18 AM AKDT · 431 days ago · 85 km deep · 75 km away
22. 1.626 km ENE of Nikolski, AlaskaMon, Jul 28, 9:14 PM AKDT · 430 days ago · 19 km deep · 95 km away
23. 1.517 km ESE of Unalaska, AlaskaMon, Jul 28, 9:45 PM AKDT · 430 days ago · 81 km deep · 75 km away
24. 1.676 km ESE of Nikolski, AlaskaMon, Jul 28, 11:45 PM AKDT · 430 days ago · 34 km deep · 97 km away
25. 2.810 km ENE of Unalaska, AlaskaTue, Jul 29, 7:18 AM AKDT · 430 days ago · 87 km deep · 76 km away
26. 1.973 km S of Unalaska, AlaskaWed, Jul 30, 5:34 PM AKDT · 428 days ago · 35 km deep · 64 km away
27. 3.120 km SE of Unalaska, AlaskaThu, Jul 31, 3:56 AM AKDT · 428 days ago · 71 km deep · 69 km away
28. 3.788 km SSE of Unalaska, AlaskaThu, Jul 31, 6:21 AM AKDT · 428 days ago · 35 km deep · 94 km away
29. 1.660 km ESE of Nikolski, AlaskaThu, Jul 31, 8:20 PM AKDT · 427 days ago · 24 km deep · 89 km away
30. 1.941 km ESE of Nikolski, AlaskaFri, Aug 1, 8:11 AM AKDT · 427 days ago · 51 km deep · 95 km away
31. 2.046 km WSW of Dutch Harbor, AlaskaSat, Aug 2, 12:52 AM AKDT · 426 days ago · 112 km deep · 31 km away
32. 2.026 km SE of Unalaska, AlaskaSat, Aug 2, 5:13 AM AKDT · 426 days ago · 79 km deep · 77 km away
33. 1.892 km SSW of Unalaska, AlaskaSun, Aug 3, 12:02 AM AKDT · 425 days ago · 26 km deep · 52 km away
34. 1.891 km SSW of Unalaska, AlaskaSun, Aug 3, 1:41 AM AKDT · 425 days ago · 26 km deep · 50 km away
35. 2.831 km SE of Unalaska, AlaskaSun, Aug 3, 3:03 PM AKDT · 424 days ago · 80 km deep · 77 km away
36. 1.574 km SW of Unalaska, AlaskaMon, Aug 4, 4:37 AM AKDT · 424 days ago · 13 km deep · 10 km away
37. 1.960 km NE of Nikolski, AlaskaMon, Aug 4, 6:37 PM AKDT · 423 days ago · 71 km deep · 62 km away
38. 1.699 km E of Nikolski, AlaskaTue, Aug 5, 11:12 PM AKDT · 422 days ago · 37 km deep · 66 km away
39. 3.484 km S of Unalaska, AlaskaTue, Aug 5, 11:37 PM AKDT · 422 days ago · 19 km deep · 61 km away
40. 1.7122 km ESE of Nikolski, AlaskaWed, Aug 6, 12:21 AM AKDT · 422 days ago · 17 km deep · 94 km away
41. 1.659 km SE of Unalaska, AlaskaWed, Aug 6, 7:38 PM AKDT · 421 days ago · 39 km deep · 100 km away
42. 1.6109 km SSW of Unalaska, AlaskaThu, Aug 7, 2:40 AM AKDT · 421 days ago · 18 km deep · 58 km away
43. 1.537 km S of Unalaska, AlaskaThu, Aug 7, 7:53 AM AKDT · 421 days ago · 47 km deep · 52 km away
44. 1.581 km SSW of Unalaska, AlaskaThu, Aug 7, 10:04 AM AKDT · 421 days ago · 15 km deep · 42 km away
45. 1.988 km SSW of Unalaska, AlaskaThu, Aug 7, 12:12 PM AKDT · 421 days ago · 26 km deep · 50 km away
46. 1.649 km SSW of Unalaska, AlaskaFri, Aug 8, 3:42 AM AKDT · 420 days ago · 68 km deep · 25 km away
47. 1.750 km SW of Unalaska, AlaskaFri, Aug 8, 5:05 AM AKDT · 420 days ago · 14 km deep · 16 km away
48. 1.8123 km ESE of Nikolski, AlaskaFri, Aug 8, 8:28 AM AKDT · 420 days ago · 15 km deep · 94 km away
49. 1.876 km SW of Unalaska, AlaskaFri, Aug 8, 8:18 PM AKDT · 419 days ago · 18 km deep · 10 km away
50. 3.325 km SE of Unalaska, AlaskaFri, Aug 8, 9:58 PM AKDT · 419 days ago · 78 km deep · 76 km away
51. 1.886 km SSW of Unalaska, AlaskaSun, Aug 10, 10:37 AM AKDT · 418 days ago · 47 km deep · 53 km away
52. 3.438 km S of Unalaska, AlaskaMon, Aug 11, 8:29 PM AKDT · 416 days ago · 69 km deep · 52 km away
53. 3.490 km SSW of Unalaska, AlaskaTue, Aug 12, 3:22 PM AKDT · 415 days ago · 35 km deep · 54 km away
54. 1.749 km SW of Unalaska, AlaskaTue, Aug 12, 5:11 PM AKDT · 415 days ago · 16 km deep · 18 km away
55. 1.749 km SW of Unalaska, AlaskaTue, Aug 12, 5:16 PM AKDT · 415 days ago · 19 km deep · 18 km away
56. 1.950 km SW of Unalaska, AlaskaTue, Aug 12, 7:27 PM AKDT · 415 days ago · 13 km deep · 19 km away
57. 3.329 km SE of Unalaska, AlaskaWed, Aug 13, 8:21 AM AKDT · 415 days ago · 81 km deep · 80 km away
58. 2.049 km SW of Unalaska, AlaskaThu, Aug 14, 2:53 PM AKDT · 413 days ago · 17 km deep · 19 km away
59. 1.991 km SSW of Unalaska, AlaskaThu, Aug 14, 7:25 PM AKDT · 413 days ago · 31 km deep · 50 km away
60. 1.527 km SE of Unalaska, AlaskaFri, Aug 15, 1:22 AM AKDT · 413 days ago · 69 km deep · 71 km away

The first 60 of 93.

Before

1. 2.847 km ESE of Unalaska, AlaskaMon, Jul 21, 11:35 AM AKDT · 438 days ago · 68 km deep · 95 km away
2. 1.748 km SW of Unalaska, AlaskaSat, Jul 19, 9:10 PM AKDT · 439 days ago · 85 km deep · 18 km away
3. 1.983 km S of Unalaska, AlaskaSat, Jul 19, 6:27 AM AKDT · 440 days ago · 16 km deep · 54 km away
4. 1.858 km SW of Unalaska, AlaskaSat, Jul 19, 5:34 AM AKDT · 440 days ago · 17 km deep · 9 km away
5. 1.965 km SE of Unalaska, AlaskaThu, Jul 17, 10:03 PM AKDT · 441 days ago · 20 km deep · 96 km away
6. 2.293 km SSW of Unalaska, AlaskaThu, Jul 17, 5:06 PM AKDT · 441 days ago · 26 km deep · 46 km away
7. 1.785 km SW of Unalaska, AlaskaWed, Jul 16, 10:24 AM AKDT · 443 days ago · 27 km deep · 24 km away
8. 1.857 km SE of Unalaska, AlaskaWed, Jul 16, 4:05 AM AKDT · 443 days ago · 46 km deep · 93 km away
9. 2.077 km E of Nikolski, AlaskaTue, Jul 15, 2:18 PM AKDT · 443 days ago · 52 km deep · 60 km away
10. 1.629 km ENE of Nikolski, AlaskaTue, Jul 15, 12:08 AM AKDT · 444 days ago · 74 km deep · 92 km away
11. 3.637 km SW of Unalaska, AlaskaMon, Jul 14, 11:34 PM AKDT · 444 days ago · 100 km deep · 28 km away
12. 2.0128 km S of Unalaska, AlaskaMon, Jul 14, 6:43 AM AKDT · 445 days ago · 8 km deep · 95 km away
13. 1.990 km SSW of Unalaska, AlaskaSun, Jul 13, 11:51 PM AKDT · 445 days ago · 26 km deep · 46 km away
14. 1.773 km WSW of Unalaska, AlaskaSun, Jul 13, 12:45 AM AKDT · 446 days ago · 5 km deep · 14 km away
15. 1.671 km WSW of Unalaska, AlaskaSat, Jul 12, 8:04 PM AKDT · 446 days ago · 0 km deep · 10 km away
16. 2.1129 km ESE of Nikolski, AlaskaFri, Jul 11, 4:29 AM AKDT · 448 days ago · 14 km deep · 98 km away
17. 1.942 km SSE of Unalaska, AlaskaThu, Jul 10, 5:06 PM AKDT · 448 days ago · 42 km deep · 72 km away
18. 1.790 km SSW of Unalaska, AlaskaWed, Jul 9, 12:51 PM AKDT · 449 days ago · 41 km deep · 43 km away
19. 1.643 km SE of Unalaska, AlaskaTue, Jul 8, 8:49 PM AKDT · 450 days ago · 53 km deep · 85 km away
20. 1.980 km SSW of Unalaska, AlaskaTue, Jul 8, 10:23 AM AKDT · 451 days ago · 61 km deep · 31 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0259bqqfxf. Read Fri, Oct 2, 2026, 7:45 AM UTC.