M1.5 earthquake 256 km W of Adak, Alaska

Magnitude

1.5 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Sat, Sep 21, 2024, 8:03 AM GMT+12

UTC

2024-09-20 20:03:28 UTC

Depth

5.7 km (3.5 mi), shallow

Epicenter

51.823° N, 179.639° E

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.7 km horizontally, 3.5 km in depth

Magnitude uncertainty

±0.21

Depth from

From location

Station coverage gap

326°, poorly surrounded by stations

Stations used

5

After

1. 1.8258 km W of Adak, AlaskaSun, Sep 22, 10:14 PM GMT+12 · 740 days ago · 10 km deep · 2 km away
2. 2.2Rat Islands, Aleutian Islands, AlaskaMon, Sep 23, 9:33 PM GMT+12 · 739 days ago · 65 km deep · 74 km away
3. 1.9198 km WSW of Adak, AlaskaMon, Sep 23, 7:42 AM HADT · 738 days ago · 22 km deep · 92 km away
4. 2.0Rat Islands, Aleutian Islands, AlaskaTue, Sep 24, 5:21 AM GMT+12 · 738 days ago · 96 km deep · 47 km away
5. 4.2Rat Islands, Aleutian Islands, AlaskaTue, Sep 24, 2:00 PM GMT+12 · 738 days ago · 22 km deep · 88 km away
6. 2.6208 km W of Adak, AlaskaWed, Sep 25, 2:51 AM HADT · 736 days ago · 79 km deep · 56 km away
7. 3.1238 km W of Adak, AlaskaFri, Sep 27, 9:33 AM HADT · 734 days ago · 180 km deep · 24 km away
8. 2.1243 km WSW of Adak, AlaskaFri, Sep 27, 7:40 AM GMT-12 · 734 days ago · 13 km deep · 98 km away
9. 2.0241 km WSW of Adak, AlaskaFri, Sep 27, 7:41 AM GMT-12 · 734 days ago · 10 km deep · 95 km away
10. 2.2Rat Islands, Aleutian Islands, AlaskaSat, Sep 28, 11:46 AM GMT+12 · 734 days ago · 26 km deep · 96 km away
11. 2.0Rat Islands, Aleutian Islands, AlaskaSat, Sep 28, 7:07 PM GMT+12 · 734 days ago · 97 km deep · 74 km away
12. 2.0233 km WSW of Adak, AlaskaFri, Sep 27, 11:46 PM HADT · 734 days ago · 14 km deep · 93 km away
13. 4.3266 km W of Adak, AlaskaSun, Sep 29, 1:33 AM GMT+12 · 733 days ago · 181 km deep · 37 km away
14. 3.1227 km WSW of Adak, AlaskaSat, Sep 28, 5:31 AM HADT · 733 days ago · 35 km deep · 88 km away
15. 1.9260 km WSW of Adak, AlaskaSun, Sep 29, 9:07 AM GMT+12 · 733 days ago · 25 km deep · 75 km away
16. 2.7209 km WSW of Adak, AlaskaSun, Sep 29, 11:15 PM HADT · 732 days ago · 35 km deep · 92 km away
17. 2.5245 km W of Adak, AlaskaTue, Oct 1, 1:06 AM GMT+12 · 731 days ago · 69 km deep · 37 km away
18. 2.9246 km WSW of Adak, AlaskaTue, Oct 1, 2:58 PM GMT+12 · 731 days ago · 51 km deep · 56 km away
19. 3.6260 km W of Adak, AlaskaTue, Oct 1, 5:50 PM GMT+12 · 731 days ago · 67 km deep · 29 km away
20. 2.5259 km W of Adak, AlaskaWed, Oct 2, 2:34 AM GMT+12 · 730 days ago · 101 km deep · 6 km away
21. 2.0207 km WSW of Adak, AlaskaWed, Oct 2, 5:54 AM HADT · 729 days ago · 26 km deep · 77 km away
22. 2.6186 km WSW of Adak, AlaskaThu, Oct 3, 12:23 AM HADT · 729 days ago · 67 km deep · 85 km away
23. 2.8Rat Islands, Aleutian Islands, AlaskaSat, Oct 5, 10:53 PM GMT+12 · 726 days ago · 73 km deep · 54 km away
24. 1.8276 km W of Adak, AlaskaMon, Oct 7, 5:47 AM GMT+12 · 725 days ago · 3 km deep · 25 km away
25. 3.1Rat Islands, Aleutian Islands, AlaskaMon, Oct 7, 6:02 PM GMT+12 · 725 days ago · 20 km deep · 92 km away
26. 2.6Rat Islands, Aleutian Islands, AlaskaTue, Oct 8, 4:19 AM GMT+12 · 724 days ago · 127 km deep · 80 km away
27. 1.9Rat Islands, Aleutian Islands, AlaskaTue, Oct 8, 10:51 PM GMT+12 · 723 days ago · 42 km deep · 60 km away
28. 3.5203 km WSW of Adak, AlaskaTue, Oct 8, 3:35 AM HADT · 723 days ago · 69 km deep · 69 km away
29. 2.0223 km WSW of Adak, AlaskaTue, Oct 8, 3:52 AM HADT · 723 days ago · 52 km deep · 55 km away
30. 1.8267 km WSW of Adak, AlaskaWed, Oct 9, 2:42 AM GMT+12 · 723 days ago · 12 km deep · 52 km away
31. 1.9194 km WSW of Adak, AlaskaWed, Oct 9, 12:23 PM HADT · 722 days ago · 22 km deep · 92 km away
32. 3.2282 km W of Adak, AlaskaSat, Oct 12, 3:48 AM GMT+12 · 720 days ago · 103 km deep · 27 km away
33. 2.8Rat Islands, Aleutian Islands, AlaskaSun, Oct 13, 2:45 PM GMT+12 · 719 days ago · 122 km deep · 79 km away
34. 3.0Rat Islands, Aleutian Islands, AlaskaSun, Oct 13, 6:19 PM GMT+12 · 719 days ago · -1 km deep · 94 km away
35. 2.1Rat Islands, Aleutian Islands, AlaskaSun, Oct 13, 6:30 PM GMT+12 · 719 days ago · 8 km deep · 89 km away
36. 2.9276 km WSW of Adak, AlaskaMon, Oct 14, 12:10 PM GMT+12 · 718 days ago · 65 km deep · 46 km away
37. 3.3Rat Islands, Aleutian Islands, AlaskaTue, Oct 15, 8:47 AM GMT+12 · 717 days ago · 128 km deep · 90 km away
38. 1.8262 km WSW of Adak, AlaskaTue, Oct 15, 3:47 PM GMT+12 · 717 days ago · 8 km deep · 51 km away
39. 2.8298 km W of Adak, AlaskaThu, Oct 17, 12:18 AM GMT+12 · 715 days ago · 87 km deep · 43 km away
40. 2.1186 km WSW of Adak, AlaskaWed, Oct 16, 3:16 PM HADT · 715 days ago · 14 km deep · 97 km away
41. 2.7Rat Islands, Aleutian Islands, AlaskaFri, Oct 18, 2:56 AM GMT+12 · 714 days ago · 106 km deep · 77 km away
42. 2.1Rat Islands, Aleutian Islands, AlaskaFri, Oct 18, 9:36 PM GMT+12 · 714 days ago · 71 km deep · 81 km away
43. 2.9261 km W of Adak, AlaskaSat, Oct 19, 10:41 AM GMT+12 · 713 days ago · 85 km deep · 12 km away
44. 2.0292 km W of Adak, AlaskaSat, Oct 19, 3:24 PM GMT+12 · 713 days ago · 52 km deep · 51 km away
45. 2.9187 km WSW of Adak, AlaskaSat, Oct 19, 11:12 PM HADT · 712 days ago · 31 km deep · 100 km away
46. 2.3188 km WSW of Adak, AlaskaSun, Oct 20, 11:28 PM HADT · 711 days ago · 10 km deep · 85 km away
47. 3.1256 km WSW of Adak, AlaskaTue, Oct 22, 7:09 PM GMT+12 · 710 days ago · 51 km deep · 53 km away
48. 2.1Rat Islands, Aleutian Islands, AlaskaTue, Oct 22, 8:58 PM GMT+12 · 710 days ago · 64 km deep · 61 km away
49. 3.4234 km W of Adak, AlaskaWed, Oct 23, 7:24 AM HADT · 708 days ago · 214 km deep · 38 km away
50. 2.5257 km W of Adak, AlaskaThu, Oct 24, 7:00 PM GMT+12 · 708 days ago · 66 km deep · 35 km away
51. 3.3255 km W of Adak, AlaskaThu, Oct 24, 8:35 PM GMT+12 · 708 days ago · 93 km deep · 15 km away
52. 2.6165 km W of Adak, AlaskaFri, Oct 25, 5:36 AM HADT · 706 days ago · 116 km deep · 93 km away
53. 3.0Rat Islands, Aleutian Islands, AlaskaSat, Oct 26, 4:45 AM GMT+12 · 706 days ago · 76 km deep · 71 km away
54. 3.2296 km W of Adak, AlaskaSat, Oct 26, 6:18 AM GMT+12 · 706 days ago · 127 km deep · 39 km away
55. 2.8Rat Islands, Aleutian Islands, AlaskaSun, Oct 27, 7:17 AM GMT+12 · 705 days ago · 106 km deep · 86 km away
56. 2.0Rat Islands, Aleutian Islands, AlaskaSun, Oct 27, 9:55 AM GMT+12 · 705 days ago · 61 km deep · 55 km away
57. 2.7219 km W of Adak, AlaskaSat, Oct 26, 1:49 PM HADT · 705 days ago · 125 km deep · 40 km away
58. 2.5278 km W of Adak, AlaskaSun, Oct 27, 1:24 PM GMT+12 · 705 days ago · 73 km deep · 34 km away
59. 2.1Rat Islands, Aleutian Islands, AlaskaMon, Oct 28, 9:33 PM GMT+12 · 704 days ago · 96 km deep · 82 km away
60. 2.8223 km WSW of Adak, AlaskaMon, Oct 28, 4:33 PM HADT · 703 days ago · 70 km deep · 53 km away

The first 60 of 101.

Before

1. 1.5263 km WSW of Adak, AlaskaFri, Sep 20, 7:29 AM GMT+12 · 742 days ago · 26 km deep · 52 km away
2. 1.9221 km W of Adak, AlaskaThu, Sep 19, 10:06 AM HADT · 742 days ago · 13 km deep · 36 km away
3. 2.1Rat Islands, Aleutian Islands, AlaskaFri, Sep 20, 5:52 AM GMT+12 · 742 days ago · 111 km deep · 80 km away
4. 1.9266 km WSW of Adak, AlaskaThu, Sep 19, 11:28 PM GMT+12 · 742 days ago · 16 km deep · 48 km away
5. 2.6234 km WSW of Adak, AlaskaWed, Sep 18, 3:23 PM HADT · 743 days ago · 24 km deep · 68 km away
6. 2.1182 km WSW of Adak, AlaskaWed, Sep 18, 2:33 PM HADT · 743 days ago · 21 km deep · 99 km away
7. 2.5238 km WSW of Adak, AlaskaWed, Sep 18, 9:47 AM GMT-12 · 743 days ago · 22 km deep · 92 km away
8. 2.2200 km WSW of Adak, AlaskaWed, Sep 18, 10:02 AM HADT · 743 days ago · 26 km deep · 91 km away
9. 2.2291 km WSW of Adak, AlaskaThu, Sep 19, 6:08 AM GMT+12 · 743 days ago · 17 km deep · 85 km away
10. 2.1243 km WSW of Adak, AlaskaWed, Sep 18, 5:25 AM GMT-12 · 743 days ago · 13 km deep · 79 km away
11. 2.2191 km WSW of Adak, AlaskaWed, Sep 18, 4:08 AM HADT · 743 days ago · 20 km deep · 96 km away
12. 2.9Rat Islands, Aleutian Islands, AlaskaWed, Sep 18, 9:05 PM GMT+12 · 744 days ago · 103 km deep · 78 km away
13. 2.1220 km WSW of Adak, AlaskaTue, Sep 17, 11:45 PM HADT · 744 days ago · 19 km deep · 68 km away
14. 3.9Rat Islands, Aleutian Islands, AlaskaWed, Sep 18, 5:33 PM GMT+12 · 744 days ago · 123 km deep · 94 km away
15. 3.6Rat Islands, Aleutian Islands, AlaskaWed, Sep 18, 3:51 AM GMT+12 · 744 days ago · 35 km deep · 74 km away
16. 3.2Rat Islands, Aleutian Islands, AlaskaWed, Sep 18, 1:54 AM GMT+12 · 744 days ago · 112 km deep · 73 km away
17. 2.6198 km WSW of Adak, AlaskaMon, Sep 16, 10:44 AM HADT · 745 days ago · 35 km deep · 94 km away
18. 2.1241 km WSW of Adak, AlaskaSun, Sep 15, 9:05 PM GMT-12 · 746 days ago · 16 km deep · 90 km away
19. 2.0Rat Islands, Aleutian Islands, AlaskaMon, Sep 16, 8:45 PM GMT+12 · 746 days ago · 49 km deep · 50 km away
20. 2.1Rat Islands, Aleutian Islands, AlaskaMon, Sep 16, 11:31 AM GMT+12 · 746 days ago · 83 km deep · 67 km away

From the USGS Earthquake Hazards Program and its partner networks, event av93278313. Read Thu, Oct 1, 2026, 10:17 PM UTC.