M1.5 earthquake 100 km W of Adak, Alaska

Magnitude

1.5 (ml), micro

Local time

Tue, Mar 28, 2023, 5:01 AM HADT

UTC

2023-03-28 14:01:11 UTC

Depth

3.6 km (2.3 mi), shallow

Epicenter

51.854° N, 178.088° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.8 km horizontally, 0.6 km in depth

Magnitude uncertainty

±0.16

Depth from

From location

Station coverage gap

211°, poorly surrounded by stations

Stations used

5

After

1. 1.9100 km W of Adak, AlaskaTue, Mar 28, 5:02 AM HADT · 1282 days ago · 5 km deep · 5 km away
2. 2.1100 km W of Adak, AlaskaTue, Mar 28, 5:18 AM HADT · 1282 days ago · 3 km deep · 1 km away
3. 1.796 km W of Adak, AlaskaTue, Mar 28, 8:27 AM HADT · 1282 days ago · -2 km deep · 3 km away
4. 1.599 km W of Adak, AlaskaTue, Mar 28, 2:34 PM HADT · 1282 days ago · 3 km deep · 1 km away
5. 3.1126 km WSW of Adak, AlaskaTue, Mar 28, 6:40 PM HADT · 1282 days ago · 42 km deep · 59 km away
6. 2.0Andreanof Islands, Aleutian Islands, AlaskaTue, Mar 28, 7:25 PM HADT · 1282 days ago · 4 km deep · 1 km away
7. 3.0Andreanof Islands, Aleutian Islands, AlaskaTue, Mar 28, 7:34 PM HADT · 1282 days ago · 9 km deep · 5 km away
8. 2.6122 km W of Adak, AlaskaTue, Mar 28, 11:51 PM HADT · 1281 days ago · 115 km deep · 24 km away
9. 2.298 km W of Adak, AlaskaWed, Mar 29, 12:26 AM HADT · 1281 days ago · 4 km deep · 2 km away
10. 1.698 km W of Adak, AlaskaWed, Mar 29, 2:30 AM HADT · 1281 days ago · 2 km deep · 2 km away
11. 3.3121 km WSW of Adak, AlaskaWed, Mar 29, 2:55 AM HADT · 1281 days ago · 35 km deep · 59 km away
12. 2.9146 km SW of Adak, AlaskaWed, Mar 29, 7:39 AM HADT · 1281 days ago · 35 km deep · 99 km away
13. 1.697 km W of Adak, AlaskaWed, Mar 29, 5:41 PM HADT · 1281 days ago · -2 km deep · 3 km away
14. 1.699 km W of Adak, AlaskaWed, Mar 29, 6:19 PM HADT · 1281 days ago · 4 km deep · 0 km away
15. 1.9146 km WSW of Adak, AlaskaWed, Mar 29, 11:25 PM HADT · 1280 days ago · 5 km deep · 58 km away
16. 1.797 km W of Adak, AlaskaThu, Mar 30, 4:18 AM HADT · 1280 days ago · 4 km deep · 3 km away
17. 1.798 km W of Adak, AlaskaThu, Mar 30, 4:18 AM HADT · 1280 days ago · -2 km deep · 2 km away
18. 2.9Andreanof Islands, Aleutian Islands, AlaskaThu, Mar 30, 4:39 AM HADT · 1280 days ago · 35 km deep · 72 km away
19. 2.9149 km WSW of Adak, AlaskaThu, Mar 30, 7:05 AM HADT · 1280 days ago · 33 km deep · 80 km away
20. 1.8100 km W of Adak, AlaskaThu, Mar 30, 1:07 PM HADT · 1280 days ago · 7 km deep · 2 km away
21. 3.291 km SW of Adak, AlaskaThu, Mar 30, 3:09 PM HADT · 1280 days ago · 35 km deep · 61 km away
22. 1.928 km S of Adak, AlaskaThu, Mar 30, 8:21 PM HADT · 1280 days ago · 63 km deep · 99 km away
23. 1.7139 km WSW of Adak, AlaskaThu, Mar 30, 9:31 PM HADT · 1279 days ago · 26 km deep · 68 km away
24. 1.999 km W of Adak, AlaskaThu, Mar 30, 9:54 PM HADT · 1279 days ago · 5 km deep · 0 km away
25. 1.5Andreanof Islands, Aleutian Islands, AlaskaThu, Mar 30, 10:36 PM HADT · 1279 days ago · 26 km deep · 76 km away
26. 1.693 km SW of Adak, AlaskaFri, Mar 31, 2:18 AM HADT · 1279 days ago · 45 km deep · 57 km away
27. 2.199 km W of Adak, AlaskaFri, Mar 31, 8:17 AM HADT · 1279 days ago · 4 km deep · 1 km away
28. 2.099 km W of Adak, AlaskaFri, Mar 31, 8:17 AM HADT · 1279 days ago · 4 km deep · 1 km away
29. 1.999 km W of Adak, AlaskaFri, Mar 31, 8:17 AM HADT · 1279 days ago · 3 km deep · 1 km away
30. 1.999 km W of Adak, AlaskaFri, Mar 31, 8:49 AM HADT · 1279 days ago · 4 km deep · 1 km away
31. 2.7101 km W of Adak, AlaskaFri, Mar 31, 9:54 AM HADT · 1279 days ago · 5 km deep · 9 km away
32. 1.9Andreanof Islands, Aleutian Islands, AlaskaFri, Mar 31, 3:15 PM HADT · 1279 days ago · 1 km deep · 1 km away
33. 1.699 km W of Adak, AlaskaFri, Mar 31, 7:28 PM HADT · 1279 days ago · 3 km deep · 1 km away
34. 2.797 km W of Adak, AlaskaFri, Mar 31, 11:11 PM HADT · 1278 days ago · 5 km deep · 3 km away
35. 2.398 km W of Adak, AlaskaFri, Mar 31, 11:20 PM HADT · 1278 days ago · 3 km deep · 2 km away
36. 1.8108 km W of Adak, AlaskaSat, Apr 1, 6:56 AM HADT · 1278 days ago · 15 km deep · 9 km away
37. 1.753 km SSW of Adak, AlaskaSat, Apr 1, 1:12 PM HADT · 1278 days ago · 44 km deep · 87 km away
38. 1.7103 km W of Adak, AlaskaSat, Apr 1, 1:57 PM HADT · 1278 days ago · 5 km deep · 4 km away
39. 1.6100 km W of Adak, AlaskaSat, Apr 1, 2:54 PM HADT · 1278 days ago · 3 km deep · 1 km away
40. 1.863 km SSW of Adak, AlaskaSat, Apr 1, 4:47 PM HADT · 1278 days ago · 36 km deep · 90 km away
41. 2.794 km SW of Adak, AlaskaSat, Apr 1, 8:16 PM HADT · 1278 days ago · 35 km deep · 59 km away
42. 1.7112 km WSW of Adak, AlaskaSun, Apr 2, 12:10 AM HADT · 1277 days ago · 50 km deep · 50 km away
43. 2.8Andreanof Islands, Aleutian Islands, AlaskaSun, Apr 2, 1:08 AM HADT · 1277 days ago · 9 km deep · 4 km away
44. 1.793 km SW of Adak, AlaskaSun, Apr 2, 2:12 AM HADT · 1277 days ago · 26 km deep · 58 km away
45. 1.999 km W of Adak, AlaskaSun, Apr 2, 6:40 AM HADT · 1277 days ago · 4 km deep · 0 km away
46. 2.560 km SSW of Adak, AlaskaSun, Apr 2, 1:14 PM HADT · 1277 days ago · 35 km deep · 90 km away
47. 2.2Andreanof Islands, Aleutian Islands, AlaskaSun, Apr 2, 6:05 PM HADT · 1277 days ago · 6 km deep · 2 km away
48. 2.698 km W of Adak, AlaskaSun, Apr 2, 6:40 PM HADT · 1277 days ago · 5 km deep · 3 km away
49. 1.597 km W of Adak, AlaskaSun, Apr 2, 8:05 PM HADT · 1277 days ago · -2 km deep · 2 km away
50. 3.167 km WSW of Adak, AlaskaSun, Apr 2, 10:15 PM HADT · 1276 days ago · 79 km deep · 38 km away
51. 2.567 km WSW of Adak, AlaskaSun, Apr 2, 10:17 PM HADT · 1276 days ago · 79 km deep · 40 km away
52. 3.5Andreanof Islands, Aleutian Islands, AlaskaMon, Apr 3, 2:08 AM HADT · 1276 days ago · 10 km deep · 100 km away
53. 1.948 km SW of Adak, AlaskaMon, Apr 3, 9:01 AM HADT · 1276 days ago · 44 km deep · 74 km away
54. 1.699 km W of Adak, AlaskaMon, Apr 3, 9:09 AM HADT · 1276 days ago · 3 km deep · 1 km away
55. 2.798 km W of Adak, AlaskaMon, Apr 3, 10:50 AM HADT · 1276 days ago · 4 km deep · 2 km away
56. 1.6100 km W of Adak, AlaskaMon, Apr 3, 11:49 AM HADT · 1276 days ago · 4 km deep · 0 km away
57. 2.197 km W of Adak, AlaskaMon, Apr 3, 1:25 PM HADT · 1276 days ago · 3 km deep · 3 km away
58. 1.599 km W of Adak, AlaskaMon, Apr 3, 8:24 PM HADT · 1276 days ago · 4 km deep · 1 km away
59. 1.999 km W of Adak, AlaskaTue, Apr 4, 12:58 AM HADT · 1275 days ago · 5 km deep · 1 km away
60. 2.199 km W of Adak, AlaskaTue, Apr 4, 12:58 AM HADT · 1275 days ago · 4 km deep · 0 km away

The first 60 of at least 201.

Before

1. 1.669 km SW of Adak, AlaskaTue, Mar 28, 4:49 AM HADT · 1282 days ago · 24 km deep · 57 km away
2. 1.7101 km W of Adak, AlaskaTue, Mar 28, 4:35 AM HADT · 1282 days ago · 2 km deep · 2 km away
3. 1.999 km W of Adak, AlaskaTue, Mar 28, 4:20 AM HADT · 1282 days ago · 4 km deep · 0 km away
4. 1.9139 km WSW of Adak, AlaskaTue, Mar 28, 3:48 AM HADT · 1282 days ago · 12 km deep · 54 km away
5. 1.799 km W of Adak, AlaskaTue, Mar 28, 2:18 AM HADT · 1282 days ago · -2 km deep · 1 km away
6. 1.7100 km W of Adak, AlaskaTue, Mar 28, 2:18 AM HADT · 1282 days ago · 3 km deep · 0 km away
7. 1.697 km W of Adak, AlaskaTue, Mar 28, 12:54 AM HADT · 1282 days ago · -2 km deep · 3 km away
8. 2.197 km W of Adak, AlaskaMon, Mar 27, 11:30 PM HADT · 1282 days ago · -2 km deep · 3 km away
9. 3.3Andreanof Islands, Aleutian Islands, AlaskaMon, Mar 27, 11:29 PM HADT · 1282 days ago · 5 km deep · 9 km away
10. 1.997 km W of Adak, AlaskaMon, Mar 27, 10:50 PM HADT · 1282 days ago · 4 km deep · 3 km away
11. 1.997 km W of Adak, AlaskaMon, Mar 27, 10:19 PM HADT · 1282 days ago · -2 km deep · 3 km away
12. 1.996 km W of Adak, AlaskaMon, Mar 27, 10:19 PM HADT · 1282 days ago · -2 km deep · 3 km away
13. 2.196 km W of Adak, AlaskaMon, Mar 27, 10:19 PM HADT · 1282 days ago · 5 km deep · 4 km away
14. 2.097 km W of Adak, AlaskaMon, Mar 27, 10:19 PM HADT · 1282 days ago · 4 km deep · 3 km away
15. 2.697 km W of Adak, AlaskaMon, Mar 27, 8:56 PM HADT · 1283 days ago · 1 km deep · 3 km away
16. 2.595 km W of Adak, AlaskaMon, Mar 27, 8:56 PM HADT · 1283 days ago · 2 km deep · 4 km away
17. 2.097 km W of Adak, AlaskaMon, Mar 27, 8:47 PM HADT · 1283 days ago · -2 km deep · 3 km away
18. 3.852 km SW of Adak, AlaskaMon, Mar 27, 8:46 PM HADT · 1283 days ago · 64 km deep · 63 km away
19. 2.3196 km W of Adak, AlaskaMon, Mar 27, 7:57 PM HADT · 1283 days ago · 94 km deep · 96 km away
20. 1.792 km W of Adak, AlaskaMon, Mar 27, 7:29 PM HADT · 1283 days ago · 4 km deep · 7 km away

From the USGS Earthquake Hazards Program and its partner networks, event av91823091. Read Wed, Sep 30, 2026, 5:51 PM UTC.