M1.8 earthquake 40 km S of Adak, Alaska

Magnitude

1.8 (ml), micro

Local time

Tue, Mar 31, 2020, 2:12 AM HADT

UTC

2020-03-31 11:12:38 UTC

Depth

32.2 km (20.0 mi), shallow

Epicenter

51.511° N, 176.730° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

26

After

1. 1.681 km W of Adak, AlaskaTue, Mar 31, 4:07 AM HADT · 2374 days ago · 7 km deep · 85 km away
2. 1.741 km ENE of Adak, AlaskaTue, Mar 31, 10:59 AM HADT · 2374 days ago · 4 km deep · 75 km away
3. 1.534 km ESE of Adak, AlaskaTue, Mar 31, 3:03 PM HADT · 2374 days ago · 72 km deep · 49 km away
4. 1.641 km S of Adak, AlaskaTue, Mar 31, 5:24 PM HADT · 2374 days ago · 33 km deep · 9 km away
5. 1.765 km SE of Adak, AlaskaTue, Mar 31, 7:25 PM HADT · 2374 days ago · 27 km deep · 46 km away
6. 1.576 km W of Adak, AlaskaWed, Apr 1, 2:39 AM HADT · 2373 days ago · 7 km deep · 78 km away
7. 1.739 km W of Adak, AlaskaWed, Apr 1, 12:41 PM HADT · 2373 days ago · 92 km deep · 49 km away
8. 2.075 km W of Adak, AlaskaWed, Apr 1, 3:44 PM HADT · 2373 days ago · 6 km deep · 78 km away
9. 1.796 km WSW of Adak, AlaskaThu, Apr 2, 6:16 AM HADT · 2372 days ago · 21 km deep · 79 km away
10. 3.544 km W of Adak, AlaskaThu, Apr 2, 2:41 PM HADT · 2372 days ago · 101 km deep · 51 km away
11. 3.244 km SSW of Adak, AlaskaThu, Apr 2, 8:10 PM HADT · 2372 days ago · 34 km deep · 4 km away
12. 1.962 km WSW of Adak, AlaskaThu, Apr 2, 10:37 PM HADT · 2372 days ago · 13 km deep · 55 km away
13. 1.737 km WSW of Adak, AlaskaFri, Apr 3, 9:54 AM HADT · 2371 days ago · 13 km deep · 35 km away
14. 2.144 km ENE of Adak, AlaskaFri, Apr 3, 3:53 PM HADT · 2371 days ago · 9 km deep · 75 km away
15. 2.260 km WSW of Adak, AlaskaFri, Apr 3, 4:36 PM HADT · 2371 days ago · 14 km deep · 45 km away
16. 1.981 km W of Adak, AlaskaSat, Apr 4, 2:50 PM HADT · 2370 days ago · 3 km deep · 84 km away
17. 2.054 km SSE of Adak, AlaskaSun, Apr 5, 3:31 AM HADT · 2369 days ago · 25 km deep · 35 km away
18. 3.5Andreanof Islands, Aleutian Islands, AlaskaSun, Apr 5, 7:37 PM HADT · 2369 days ago · 77 km deep · 42 km away
19. 1.982 km W of Adak, AlaskaSun, Apr 5, 8:44 PM HADT · 2369 days ago · 5 km deep · 85 km away
20. 2.782 km W of Adak, AlaskaSun, Apr 5, 10:47 PM HADT · 2369 days ago · 8 km deep · 81 km away
21. 1.882 km W of Adak, AlaskaSun, Apr 5, 10:49 PM HADT · 2369 days ago · 5 km deep · 85 km away
22. 1.682 km W of Adak, AlaskaSun, Apr 5, 10:52 PM HADT · 2369 days ago · 5 km deep · 83 km away
23. 1.879 km W of Adak, AlaskaMon, Apr 6, 12:01 AM HADT · 2369 days ago · 0 km deep · 82 km away
24. 1.685 km W of Adak, AlaskaMon, Apr 6, 11:52 AM HADT · 2368 days ago · 7 km deep · 87 km away
25. 1.567 km SSW of Adak, AlaskaMon, Apr 6, 7:09 PM HADT · 2368 days ago · 35 km deep · 33 km away
26. 1.564 km SE of Adak, AlaskaMon, Apr 6, 7:57 PM HADT · 2368 days ago · 23 km deep · 51 km away
27. 2.246 km NE of Adak, AlaskaTue, Apr 7, 10:14 PM HADT · 2367 days ago · 208 km deep · 81 km away
28. 1.7106 km WSW of Adak, AlaskaWed, Apr 8, 10:35 PM HADT · 2366 days ago · 14 km deep · 95 km away
29. 1.767 km SW of Adak, AlaskaWed, Apr 8, 10:58 PM HADT · 2366 days ago · 54 km deep · 46 km away
30. 1.672 km W of Adak, AlaskaThu, Apr 9, 8:14 AM HADT · 2365 days ago · 6 km deep · 74 km away
31. 2.677 km SE of Adak, AlaskaFri, Apr 10, 10:25 AM HADT · 2364 days ago · 34 km deep · 63 km away
32. 2.587 km SE of Adak, AlaskaFri, Apr 10, 11:47 PM HADT · 2364 days ago · 29 km deep · 77 km away
33. 2.652 km SSE of Adak, AlaskaSat, Apr 11, 2:36 AM HADT · 2363 days ago · 35 km deep · 32 km away
34. 1.675 km SW of Adak, AlaskaSat, Apr 11, 3:39 AM HADT · 2363 days ago · 32 km deep · 51 km away
35. 1.772 km SW of Adak, AlaskaSat, Apr 11, 9:13 AM HADT · 2363 days ago · 26 km deep · 45 km away
36. 2.042 km ENE of Adak, AlaskaSat, Apr 11, 10:45 AM HADT · 2363 days ago · 7 km deep · 73 km away
37. 1.885 km SW of Adak, AlaskaSat, Apr 11, 11:35 AM HADT · 2363 days ago · 45 km deep · 57 km away
38. 1.669 km SSW of Adak, AlaskaSat, Apr 11, 1:27 PM HADT · 2363 days ago · 21 km deep · 31 km away
39. 1.9112 km WSW of Adak, AlaskaSat, Apr 11, 2:01 PM HADT · 2363 days ago · 49 km deep · 92 km away
40. 1.580 km W of Adak, AlaskaSun, Apr 12, 3:02 AM HADT · 2362 days ago · 5 km deep · 82 km away
41. 1.9Andreanof Islands, Aleutian Islands, AlaskaMon, Apr 13, 3:25 AM HADT · 2361 days ago · 5 km deep · 75 km away
42. 1.842 km SSE of Adak, AlaskaMon, Apr 13, 2:00 PM HADT · 2361 days ago · 32 km deep · 26 km away
43. 1.678 km SW of Adak, AlaskaMon, Apr 13, 9:29 PM HADT · 2361 days ago · 30 km deep · 53 km away
44. 1.572 km WSW of Adak, AlaskaTue, Apr 14, 3:17 AM HADT · 2360 days ago · 65 km deep · 60 km away
45. 1.782 km WSW of Adak, AlaskaTue, Apr 14, 4:10 AM HADT · 2360 days ago · 67 km deep · 66 km away
46. 1.5101 km SW of Adak, AlaskaTue, Apr 14, 3:15 PM HADT · 2360 days ago · 40 km deep · 72 km away
47. 1.689 km WSW of Adak, AlaskaWed, Apr 15, 5:47 AM HADT · 2359 days ago · 57 km deep · 70 km away
48. 3.388 km SE of Adak, AlaskaWed, Apr 15, 10:49 AM HADT · 2359 days ago · 35 km deep · 74 km away
49. 2.945 km ENE of Adak, AlaskaWed, Apr 15, 12:40 PM HADT · 2359 days ago · 148 km deep · 74 km away
50. 2.573 km SW of Adak, AlaskaWed, Apr 15, 8:52 PM HADT · 2359 days ago · 37 km deep · 51 km away
51. 2.063 km SSE of Adak, AlaskaThu, Apr 16, 1:30 AM HADT · 2358 days ago · 26 km deep · 31 km away
52. 3.897 km SW of Adak, AlaskaThu, Apr 16, 9:04 AM HADT · 2358 days ago · 35 km deep · 70 km away
53. 1.655 km SSE of Adak, AlaskaThu, Apr 16, 3:56 PM HADT · 2358 days ago · 23 km deep · 30 km away
54. 2.538 km SW of Adak, AlaskaThu, Apr 16, 6:09 PM HADT · 2358 days ago · 69 km deep · 25 km away
55. 2.896 km SSE of Adak, AlaskaFri, Apr 17, 3:31 AM HADT · 2357 days ago · 10 km deep · 61 km away
56. 2.563 km SE of Adak, AlaskaFri, Apr 17, 2:19 PM HADT · 2357 days ago · 35 km deep · 52 km away
57. 1.564 km SSW of Adak, AlaskaFri, Apr 17, 4:00 PM HADT · 2357 days ago · 34 km deep · 28 km away
58. 1.784 km S of Adak, AlaskaSat, Apr 18, 12:32 PM HADT · 2356 days ago · 26 km deep · 44 km away
59. 1.568 km SE of Adak, AlaskaSat, Apr 18, 7:02 PM HADT · 2356 days ago · 26 km deep · 58 km away
60. 1.773 km WSW of Adak, AlaskaSat, Apr 18, 8:22 PM HADT · 2356 days ago · 79 km deep · 71 km away

The first 60 of at least 199.

Before

1. 1.579 km WSW of Adak, AlaskaMon, Mar 30, 9:56 PM HADT · 2375 days ago · 26 km deep · 60 km away
2. 1.681 km W of Adak, AlaskaMon, Mar 30, 4:34 AM HADT · 2375 days ago · 7 km deep · 85 km away
3. 1.760 km SSW of Adak, AlaskaMon, Mar 30, 12:04 AM HADT · 2376 days ago · 40 km deep · 26 km away
4. 3.252 km SW of Adak, AlaskaSun, Mar 29, 10:52 PM HADT · 2376 days ago · 44 km deep · 24 km away
5. 2.6111 km WSW of Adak, AlaskaSun, Mar 29, 10:31 PM HADT · 2376 days ago · 40 km deep · 90 km away
6. 2.799 km W of Adak, AlaskaSat, Mar 28, 9:34 PM HADT · 2377 days ago · 197 km deep · 99 km away
7. 3.5116 km WSW of Adak, AKSat, Mar 28, 3:20 PM HADT · 2377 days ago · 58 km deep · 94 km away
8. 1.855 km ESE of Adak, AlaskaSat, Mar 28, 9:58 AM HADT · 2377 days ago · 37 km deep · 56 km away
9. 1.743 km ENE of Adak, AlaskaSat, Mar 28, 6:29 AM HADT · 2377 days ago · 8 km deep · 75 km away
10. 1.673 km SW of Adak, AlaskaFri, Mar 27, 8:11 PM HADT · 2378 days ago · 34 km deep · 53 km away
11. 1.572 km SW of Adak, AlaskaFri, Mar 27, 6:23 PM HADT · 2378 days ago · 26 km deep · 47 km away
12. 3.410 km S of Adak, AlaskaFri, Mar 27, 5:48 PM HADT · 2378 days ago · 79 km deep · 31 km away
13. 2.858 km SSE of Adak, AlaskaFri, Mar 27, 1:52 PM HADT · 2378 days ago · 35 km deep · 30 km away
14. 3.592 km SW of Adak, AlaskaFri, Mar 27, 4:35 AM HADT · 2378 days ago · 17 km deep · 64 km away
15. 2.9102 km WSW of Adak, AlaskaThu, Mar 26, 11:03 PM HADT · 2379 days ago · 69 km deep · 89 km away
16. 1.6112 km WSW of Adak, AlaskaThu, Mar 26, 10:37 PM HADT · 2379 days ago · 51 km deep · 91 km away
17. 2.548 km SE of Adak, AlaskaThu, Mar 26, 12:06 PM HADT · 2379 days ago · 37 km deep · 46 km away
18. 1.579 km W of Adak, AlaskaThu, Mar 26, 8:24 AM HADT · 2379 days ago · 7 km deep · 81 km away
19. 1.772 km SW of Adak, AlaskaThu, Mar 26, 8:08 AM HADT · 2379 days ago · 36 km deep · 52 km away
20. 2.653 km S of Adak, AlaskaWed, Mar 25, 8:49 PM HADT · 2380 days ago · 37 km deep · 16 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak02046oj03m. Read Wed, Sep 30, 2026, 9:38 PM UTC.