M1.6 earthquake 6 km NE of Adak, Alaska

Magnitude

1.6 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Wed, Mar 28, 2018, 6:21 AM HADT

UTC

2018-03-28 15:21:58 UTC

Depth

73.2 km (45.5 mi), intermediate-depth

Epicenter

51.917° N, 176.581° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

11

After

1. 1.665 km SSW of Adak, AlaskaWed, Mar 28, 11:33 PM HADT · 3110 days ago · 29 km deep · 72 km away
2. 1.752 km SE of Adak, AlaskaThu, Mar 29, 4:22 AM HADT · 3109 days ago · 62 km deep · 52 km away
3. 3.476 km SSE of Adak, AlaskaThu, Mar 29, 6:22 PM HADT · 3109 days ago · 15 km deep · 80 km away
4. 2.263 km SE of Adak, AlaskaThu, Mar 29, 10:34 PM HADT · 3109 days ago · 53 km deep · 63 km away
5. 2.327 km SSE of Adak, AlaskaFri, Mar 30, 2:24 AM HADT · 3108 days ago · 48 km deep · 30 km away
6. 2.557 km E of Adak, AlaskaFri, Mar 30, 7:26 PM HADT · 3108 days ago · 214 km deep · 53 km away
7. 2.556 km ESE of Adak, AlaskaSat, Mar 31, 2:19 AM HADT · 3107 days ago · 52 km deep · 56 km away
8. 2.042 km SSE of Adak, AlaskaSun, Apr 1, 10:54 PM HADT · 3106 days ago · 52 km deep · 46 km away
9. 2.137 km SSE of Adak, AlaskaMon, Apr 2, 7:08 AM HADT · 3105 days ago · 24 km deep · 41 km away
10. 2.938 km S of Adak, AlaskaTue, Apr 3, 11:35 AM HADT · 3104 days ago · 31 km deep · 44 km away
11. 1.847 km SE of Adak, AlaskaWed, Apr 4, 2:28 AM HADT · 3103 days ago · 49 km deep · 48 km away
12. 2.065 km SSW of Adak, AlaskaWed, Apr 4, 4:55 AM HADT · 3103 days ago · 32 km deep · 72 km away
13. 2.075 km WSW of Adak, AlaskaWed, Apr 4, 7:50 PM HADT · 3103 days ago · 36 km deep · 81 km away
14. 2.040 km ENE of Adak, AlaskaWed, Apr 4, 9:58 PM HADT · 3103 days ago · 125 km deep · 35 km away
15. 2.263 km SE of Adak, AlaskaFri, Apr 6, 10:59 AM HADT · 3101 days ago · 45 km deep · 63 km away
16. 2.450 km SSE of Adak, AlaskaFri, Apr 6, 11:30 AM HADT · 3101 days ago · 24 km deep · 53 km away
17. 1.954 km S of Adak, AlaskaSat, Apr 7, 5:21 PM HADT · 3100 days ago · 83 km deep · 60 km away
18. 1.945 km SE of Adak, AlaskaSun, Apr 8, 3:38 AM HADT · 3099 days ago · 42 km deep · 46 km away
19. 3.242 km ENE of Adak, AlaskaMon, Apr 9, 11:45 PM HADT · 3098 days ago · 155 km deep · 38 km away
20. 2.686 km WSW of Adak, AlaskaTue, Apr 10, 4:00 AM HADT · 3097 days ago · 72 km deep · 92 km away
21. 2.661 km SSE of Adak, AlaskaTue, Apr 10, 8:55 AM HADT · 3097 days ago · 39 km deep · 64 km away
22. 3.079 km S of Adak, AlaskaTue, Apr 10, 10:29 PM HADT · 3097 days ago · 57 km deep · 84 km away
23. 2.971 km SSW of Adak, AlaskaWed, Apr 11, 5:53 PM HADT · 3096 days ago · 22 km deep · 77 km away
24. 1.723 km SW of Adak, AlaskaMon, Apr 23, 3:03 PM HADT · 3084 days ago · 45 km deep · 29 km away
25. 2.371 km WSW of Adak, AlaskaMon, Apr 23, 8:56 PM HADT · 3084 days ago · 31 km deep · 77 km away
26. 1.952 km SW of Adak, AlaskaTue, Apr 24, 12:54 AM HADT · 3083 days ago · 40 km deep · 59 km away
27. 2.091 km WSW of Adak, AlaskaWed, Apr 25, 10:34 AM HADT · 3082 days ago · 63 km deep · 96 km away
28. 2.471 km WSW of Adak, AlaskaWed, Apr 25, 11:54 AM HADT · 3082 days ago · 36 km deep · 77 km away
29. 2.047 km ESE of Adak, AlaskaWed, Apr 25, 9:04 PM HADT · 3082 days ago · 60 km deep · 46 km away
30. 2.033 km SSE of Adak, AlaskaThu, Apr 26, 3:44 AM HADT · 3081 days ago · 43 km deep · 37 km away
31. 2.188 km WSW of Atka, AlaskaSat, Apr 28, 12:02 PM HADT · 3079 days ago · 57 km deep · 87 km away
32. 3.256 km WSW of Adak, AlaskaSun, Apr 29, 5:09 AM HADT · 3078 days ago · 29 km deep · 63 km away
33. 4.281 km SW of Adak, AlaskaSun, Apr 29, 6:38 AM HADT · 3078 days ago · 14 km deep · 87 km away
34. 2.171 km WSW of Adak, AlaskaSun, Apr 29, 6:45 AM HADT · 3078 days ago · 25 km deep · 77 km away
35. 3.471 km WSW of Adak, AlaskaSun, Apr 29, 6:51 AM HADT · 3078 days ago · 33 km deep · 77 km away
36. 1.872 km SW of Adak, AlaskaSun, Apr 29, 6:54 AM HADT · 3078 days ago · 33 km deep · 78 km away
37. 2.572 km SW of Adak, AlaskaSun, Apr 29, 7:19 AM HADT · 3078 days ago · 32 km deep · 78 km away
38. 2.170 km WSW of Adak, AlaskaSun, Apr 29, 10:16 AM HADT · 3078 days ago · 27 km deep · 76 km away
39. 2.570 km WSW of Adak, AlaskaSun, Apr 29, 11:40 AM HADT · 3078 days ago · 35 km deep · 76 km away
40. 2.065 km SSE of Adak, AlaskaMon, Apr 30, 7:03 PM HADT · 3077 days ago · 42 km deep · 69 km away
41. 2.158 km SSE of Adak, AlaskaMon, Apr 30, 8:42 PM HADT · 3077 days ago · 26 km deep · 61 km away
42. 2.035 km SW of Adak, AlaskaTue, May 1, 1:28 AM HADT · 3076 days ago · 58 km deep · 41 km away
43. 1.571 km SW of Adak, AlaskaTue, May 1, 5:35 AM HADT · 3076 days ago · 25 km deep · 77 km away
44. 1.570 km SW of Adak, AlaskaTue, May 1, 9:51 AM HADT · 3076 days ago · 22 km deep · 76 km away
45. 1.688 km WSW of Adak, AlaskaTue, May 1, 9:59 AM HADT · 3076 days ago · 25 km deep · 93 km away
46. 1.757 km SE of Adak, AlaskaTue, May 1, 10:45 PM HADT · 3076 days ago · 22 km deep · 58 km away
47. 3.352 km SE of Adak, AlaskaSat, May 5, 9:35 PM HADT · 3072 days ago · 23 km deep · 54 km away
48. 2.862 km ESE of Adak, AlaskaTue, May 8, 10:39 PM HADT · 3069 days ago · 30 km deep · 61 km away
49. 4.857 km ESE of Adak, AlaskaThu, May 24, 6:54 PM HADT · 3053 days ago · 60 km deep · 56 km away · felt by 1
50. 3.853 km ESE of Adak, AlaskaSat, May 26, 7:17 AM HADT · 3051 days ago · 51 km deep · 52 km away

Before

1. 2.183 km ESE of Adak, AlaskaWed, Mar 28, 3:31 AM HADT · 3110 days ago · 45 km deep · 81 km away
2. 1.838 km WNW of Adak, AlaskaWed, Mar 28, 1:46 AM HADT · 3110 days ago · 77 km deep · 41 km away
3. 1.757 km SE of Adak, AlaskaTue, Mar 27, 6:35 PM HADT · 3111 days ago · 49 km deep · 58 km away
4. 2.658 km SE of Adak, AlaskaSun, Mar 25, 12:20 PM HADT · 3113 days ago · 41 km deep · 60 km away
5. 2.530 km WSW of Adak, AlaskaSun, Mar 25, 4:54 AM HADT · 3113 days ago · 79 km deep · 35 km away
6. 2.498 km ESE of Adak, AlaskaFri, Mar 23, 5:30 AM HADT · 3115 days ago · 49 km deep · 96 km away
7. 2.484 km W of Adak, AlaskaWed, Mar 21, 7:58 PM HADT · 3117 days ago · 73 km deep · 89 km away
8. 2.482 km WNW of Adak, AlaskaTue, Mar 20, 11:41 PM HADT · 3118 days ago · 103 km deep · 85 km away
9. 2.136 km S of Adak, AlaskaTue, Mar 20, 6:51 PM HADT · 3118 days ago · 41 km deep · 42 km away
10. 1.633 km SSW of Adak, AlaskaMon, Mar 19, 10:31 PM HADT · 3119 days ago · 41 km deep · 39 km away
11. 2.333 km NNW of Adak, AlaskaMon, Mar 19, 9:43 PM HADT · 3119 days ago · 176 km deep · 31 km away
12. 1.955 km SSE of Adak, AlaskaMon, Mar 19, 5:04 PM HADT · 3119 days ago · 24 km deep · 59 km away
13. 2.632 km S of Adak, AlaskaSat, Mar 17, 11:30 PM HADT · 3121 days ago · 42 km deep · 38 km away
14. 1.661 km ESE of Adak, AlaskaSat, Mar 17, 6:09 AM HADT · 3121 days ago · 42 km deep · 60 km away
15. 2.046 km SW of Adak, AlaskaSat, Mar 17, 5:42 AM HADT · 3121 days ago · 42 km deep · 53 km away
16. 1.962 km SE of Adak, AlaskaSat, Mar 17, 1:17 AM HADT · 3121 days ago · 18 km deep · 63 km away
17. 2.490 km SE of Adak, AlaskaFri, Mar 16, 9:22 PM HADT · 3122 days ago · 26 km deep · 90 km away
18. 1.878 km E of Adak, AlaskaFri, Mar 16, 6:38 PM HADT · 3122 days ago · 38 km deep · 75 km away
19. 1.962 km SSW of Adak, AlaskaFri, Mar 16, 6:30 PM HADT · 3122 days ago · 24 km deep · 69 km away
20. 2.321 km SSW of Adak, AlaskaFri, Mar 16, 6:06 PM HADT · 3122 days ago · 69 km deep · 27 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak018404tbk8 (also filed as ak18958921). Read Fri, Oct 2, 2026, 9:17 PM UTC.