M1.8 earthquake 58 km W of Adak, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Sun, Apr 21, 2024, 10:51 PM HADT

UTC

2024-04-22 07:51:27 UTC

Depth

0.8 km (0.5 mi), shallow

Epicenter

51.779° N, 177.466° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.1 km horizontally, 2.1 km in depth

Magnitude uncertainty

±0.27

Depth from

From location

Station coverage gap

170°

Stations used

8

After

1. 1.559 km W of Adak, AlaskaSun, Apr 21, 11:02 PM HADT · 894 days ago · 1 km deep · 1 km away
2. 2.0144 km WSW of Adak, AlaskaMon, Apr 22, 12:43 AM HADT · 894 days ago · 22 km deep · 92 km away
3. 2.060 km W of Adak, AlaskaMon, Apr 22, 6:11 AM HADT · 893 days ago · 3 km deep · 2 km away
4. 1.659 km W of Adak, AlaskaMon, Apr 22, 7:47 PM HADT · 893 days ago · 2 km deep · 1 km away
5. 1.859 km W of Adak, AlaskaMon, Apr 22, 7:47 PM HADT · 893 days ago · 2 km deep · 1 km away
6. 1.859 km WSW of Adak, AlaskaTue, Apr 23, 8:20 AM HADT · 892 days ago · 2 km deep · 2 km away
7. 1.759 km W of Adak, AlaskaTue, Apr 23, 10:14 AM HADT · 892 days ago · -2 km deep · 1 km away
8. 2.020 km ESE of Adak, AlaskaTue, Apr 23, 4:41 PM HADT · 892 days ago · 69 km deep · 75 km away
9. 1.659 km W of Adak, AlaskaTue, Apr 23, 5:47 PM HADT · 892 days ago · 2 km deep · 1 km away
10. 1.559 km W of Adak, AlaskaWed, Apr 24, 5:25 AM HADT · 891 days ago · 2 km deep · 2 km away
11. 2.158 km W of Adak, AlaskaWed, Apr 24, 5:26 AM HADT · 891 days ago · 13 km deep · 1 km away
12. 1.560 km W of Adak, AlaskaWed, Apr 24, 3:47 PM HADT · 891 days ago · 3 km deep · 2 km away
13. 1.6104 km WSW of Adak, AlaskaWed, Apr 24, 6:28 PM HADT · 891 days ago · 14 km deep · 48 km away
14. 1.660 km W of Adak, AlaskaThu, Apr 25, 3:49 AM HADT · 890 days ago · 2 km deep · 3 km away
15. 2.9148 km WSW of Adak, AlaskaThu, Apr 25, 4:26 AM HADT · 890 days ago · 35 km deep · 96 km away
16. 1.758 km WSW of Adak, AlaskaThu, Apr 25, 4:57 AM HADT · 890 days ago · -2 km deep · 1 km away
17. 2.257 km SE of Adak, AlaskaThu, Apr 25, 6:56 AM HADT · 890 days ago · 26 km deep · 98 km away
18. 2.669 km S of Adak, AlaskaThu, Apr 25, 7:54 AM HADT · 890 days ago · 35 km deep · 75 km away
19. 1.962 km S of Adak, AlaskaThu, Apr 25, 8:51 AM HADT · 890 days ago · 26 km deep · 69 km away
20. 1.660 km W of Adak, AlaskaThu, Apr 25, 8:56 AM HADT · 890 days ago · 1 km deep · 3 km away
21. 1.658 km W of Adak, AlaskaThu, Apr 25, 10:24 AM HADT · 890 days ago · -2 km deep · 1 km away
22. 1.959 km W of Adak, AlaskaThu, Apr 25, 12:43 PM HADT · 890 days ago · 11 km deep · 3 km away
23. 1.659 km W of Adak, AlaskaThu, Apr 25, 11:53 PM HADT · 890 days ago · 2 km deep · 2 km away
24. 1.560 km W of Adak, AlaskaFri, Apr 26, 12:26 AM HADT · 890 days ago · 3 km deep · 2 km away
25. 1.858 km WSW of Adak, AlaskaFri, Apr 26, 5:05 AM HADT · 889 days ago · 14 km deep · 1 km away
26. 1.759 km W of Adak, AlaskaFri, Apr 26, 6:08 AM HADT · 889 days ago · 13 km deep · 4 km away
27. 1.960 km SW of Adak, AlaskaFri, Apr 26, 11:50 AM HADT · 889 days ago · 51 km deep · 40 km away
28. 2.174 km SSE of Adak, AlaskaFri, Apr 26, 3:00 PM HADT · 889 days ago · 25 km deep · 98 km away
29. 1.999 km WSW of Adak, AlaskaFri, Apr 26, 4:25 PM HADT · 889 days ago · 13 km deep · 41 km away
30. 2.1129 km WSW of Adak, AlaskaFri, Apr 26, 10:20 PM HADT · 889 days ago · 37 km deep · 77 km away
31. 1.6127 km WSW of Adak, AlaskaFri, Apr 26, 11:12 PM HADT · 889 days ago · 22 km deep · 73 km away
32. 1.747 km SW of Adak, AlaskaSat, Apr 27, 5:52 AM HADT · 888 days ago · 44 km deep · 37 km away
33. 1.649 km S of Adak, AlaskaSat, Apr 27, 8:29 AM HADT · 888 days ago · 25 km deep · 70 km away
34. 2.645 km SSW of Adak, AlaskaSat, Apr 27, 9:40 AM HADT · 888 days ago · 64 km deep · 48 km away
35. 1.957 km SW of Adak, AlaskaSat, Apr 27, 2:16 PM HADT · 888 days ago · 48 km deep · 40 km away
36. 1.558 km WSW of Adak, AlaskaSat, Apr 27, 8:34 PM HADT · 888 days ago · 11 km deep · 1 km away
37. 1.560 km W of Adak, AlaskaSat, Apr 27, 11:56 PM HADT · 888 days ago · 7 km deep · 3 km away
38. 2.0109 km WSW of Adak, AlaskaSun, Apr 28, 1:21 AM HADT · 888 days ago · 13 km deep · 53 km away
39. 1.742 km SSW of Adak, AlaskaSun, Apr 28, 5:46 AM HADT · 887 days ago · 37 km deep · 52 km away
40. 1.672 km WSW of Adak, AlaskaSun, Apr 28, 10:48 AM HADT · 887 days ago · 26 km deep · 25 km away
41. 1.9145 km WSW of Adak, AlaskaSun, Apr 28, 5:13 PM HADT · 887 days ago · 22 km deep · 92 km away
42. 1.559 km W of Adak, AlaskaSun, Apr 28, 9:25 PM HADT · 887 days ago · 13 km deep · 3 km away
43. 1.653 km SSW of Adak, AlaskaSun, Apr 28, 10:41 PM HADT · 887 days ago · 37 km deep · 47 km away
44. 1.7131 km WSW of Adak, AlaskaSun, Apr 28, 10:43 PM HADT · 887 days ago · 25 km deep · 75 km away
45. 1.667 km SSW of Adak, AlaskaMon, Apr 29, 1:38 AM HADT · 887 days ago · 24 km deep · 63 km away
46. 1.760 km SW of Adak, AlaskaMon, Apr 29, 6:15 AM HADT · 886 days ago · 59 km deep · 35 km away
47. 2.560 km SSW of Adak, AlaskaMon, Apr 29, 6:26 AM HADT · 886 days ago · 35 km deep · 52 km away
48. 1.659 km W of Adak, AlaskaMon, Apr 29, 7:01 PM HADT · 886 days ago · -2 km deep · 3 km away
49. 1.960 km W of Adak, AlaskaMon, Apr 29, 10:40 PM HADT · 886 days ago · 11 km deep · 5 km away
50. 2.258 km W of Adak, AlaskaMon, Apr 29, 11:01 PM HADT · 886 days ago · 7 km deep · 3 km away
51. 1.759 km W of Adak, AlaskaTue, Apr 30, 12:57 AM HADT · 886 days ago · -2 km deep · 4 km away
52. 1.857 km W of Adak, AlaskaTue, Apr 30, 11:34 AM HADT · 885 days ago · 12 km deep · 1 km away
53. 1.660 km W of Adak, AlaskaTue, Apr 30, 1:05 PM HADT · 885 days ago · 3 km deep · 2 km away
54. 1.658 km W of Adak, AlaskaTue, Apr 30, 3:32 PM HADT · 885 days ago · 0 km deep · 1 km away
55. 1.866 km SW of Adak, AlaskaWed, May 1, 3:51 AM HADT · 884 days ago · 44 km deep · 28 km away
56. 1.8148 km W of Adak, AlaskaWed, May 1, 12:28 PM HADT · 884 days ago · 15 km deep · 90 km away
57. 1.839 km SSE of Adak, AlaskaThu, May 2, 10:31 AM HADT · 883 days ago · 34 km deep · 79 km away
58. 1.660 km WSW of Adak, AlaskaThu, May 2, 9:54 PM HADT · 883 days ago · 13 km deep · 5 km away
59. 1.983 km WSW of Adak, AlaskaThu, May 2, 11:30 PM HADT · 883 days ago · 46 km deep · 32 km away
60. 2.9138 km W of Adak, AlaskaFri, May 3, 4:31 AM HADT · 882 days ago · 116 km deep · 82 km away

The first 60 of at least 201.

Before

1. 1.858 km W of Adak, AlaskaSun, Apr 21, 10:51 PM HADT · 894 days ago · 9 km deep · 1 km away
2. 2.058 km WSW of Adak, AlaskaSun, Apr 21, 10:50 PM HADT · 894 days ago · 12 km deep · 1 km away
3. 2.158 km WSW of Adak, AlaskaSun, Apr 21, 10:37 PM HADT · 894 days ago · 11 km deep · 1 km away
4. 3.0147 km WSW of Adak, AlaskaSun, Apr 21, 9:51 PM HADT · 894 days ago · 58 km deep · 91 km away
5. 1.759 km W of Adak, AlaskaSun, Apr 21, 8:39 PM HADT · 894 days ago · -2 km deep · 1 km away
6. 2.059 km SSE of Adak, AlaskaSun, Apr 21, 8:16 PM HADT · 894 days ago · 24 km deep · 89 km away
7. 2.562 km SW of Adak, AlaskaSun, Apr 21, 7:10 PM HADT · 894 days ago · 57 km deep · 32 km away
8. 2.672 km WSW of Adak, AlaskaSun, Apr 21, 6:57 PM HADT · 894 days ago · 113 km deep · 16 km away
9. 1.558 km W of Adak, AlaskaSun, Apr 21, 6:27 PM HADT · 894 days ago · 7 km deep · 2 km away
10. 3.6151 km WSW of Adak, AlaskaSun, Apr 21, 3:00 PM HADT · 894 days ago · 35 km deep · 98 km away
11. 2.779 km SW of Adak, AlaskaSun, Apr 21, 1:36 PM HADT · 894 days ago · 37 km deep · 39 km away
12. 2.0127 km WSW of Adak, AlaskaSun, Apr 21, 11:47 AM HADT · 894 days ago · 13 km deep · 72 km away
13. 1.832 km SSW of Adak, AlaskaSun, Apr 21, 11:31 AM HADT · 894 days ago · 39 km deep · 49 km away
14. 1.758 km W of Adak, AlaskaSun, Apr 21, 10:39 AM HADT · 894 days ago · 10 km deep · 1 km away
15. 3.060 km WSW of Adak, AlaskaSun, Apr 21, 10:37 AM HADT · 894 days ago · 12 km deep · 9 km away
16. 2.759 km WSW of Adak, AlaskaSun, Apr 21, 10:21 AM HADT · 894 days ago · 15 km deep · 5 km away
17. 1.858 km WSW of Adak, AlaskaSun, Apr 21, 7:40 AM HADT · 894 days ago · 12 km deep · 2 km away
18. 1.658 km WSW of Adak, AlaskaSun, Apr 21, 7:37 AM HADT · 894 days ago · 12 km deep · 1 km away
19. 1.893 km SW of Adak, AlaskaSun, Apr 21, 7:07 AM HADT · 894 days ago · 13 km deep · 57 km away
20. 1.646 km SE of Adak, AlaskaSun, Apr 21, 5:00 AM HADT · 894 days ago · 36 km deep · 90 km away

From the USGS Earthquake Hazards Program and its partner networks, event av93003634. Read Fri, Oct 2, 2026, 11:05 PM UTC.