M2.1 earthquake 45 km E of Adak, Alaska

Magnitude

2.1 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Wed, Apr 28, 2021, 4:15 PM HADT

UTC

2021-04-29 01:15:46 UTC

Depth

126.6 km (78.7 mi), intermediate-depth

Epicenter

51.932° N, 175.981° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

20

After

1. 2.264 km SSE of Adak, AlaskaWed, Apr 28, 6:37 PM HADT · 1983 days ago · 23 km deep · 77 km away
2. 1.643 km S of Adak, AlaskaThu, Apr 29, 12:47 AM HADT · 1983 days ago · 44 km deep · 63 km away
3. 1.727 km ESE of Adak, AlaskaThu, Apr 29, 11:00 AM HADT · 1982 days ago · 98 km deep · 27 km away
4. 3.856 km NE of Adak, AlaskaFri, Apr 30, 6:15 AM HADT · 1982 days ago · 155 km deep · 41 km away
5. 3.6100 km SW of Atka, AlaskaMon, May 3, 5:27 PM HADT · 1978 days ago · 35 km deep · 69 km away
6. 1.849 km SE of Adak, AlaskaTue, May 4, 9:15 AM HADT · 1978 days ago · 30 km deep · 48 km away
7. 1.599 km SW of Atka, AlaskaWed, May 12, 3:10 PM HADT · 1969 days ago · 26 km deep · 70 km away
8. 1.934 km ENE of Adak, AlaskaThu, May 13, 1:55 AM HADT · 1969 days ago · 132 km deep · 12 km away
9. 3.199 km ESE of Adak, AlaskaThu, May 13, 8:47 AM HADT · 1969 days ago · 35 km deep · 62 km away
10. 2.955 km SW of Atka, AlaskaThu, May 13, 9:20 PM HADT · 1968 days ago · 51 km deep · 86 km away
11. 1.5Andreanof Islands, Aleutian Islands, AlaskaFri, May 14, 5:44 AM HADT · 1968 days ago · 29 km deep · 34 km away
12. 1.652 km SW of Adak, AlaskaFri, May 14, 8:56 AM HADT · 1968 days ago · 45 km deep · 92 km away
13. 3.831 km SSE of Adak, AlaskaFri, May 14, 12:55 PM HADT · 1967 days ago · 50 km deep · 44 km away
14. 2.579 km WSW of Atka, AlaskaFri, May 14, 11:51 PM HADT · 1967 days ago · 57 km deep · 57 km away
15. 1.957 km SSE of Adak, AlaskaSun, May 16, 10:59 AM HADT · 1965 days ago · 26 km deep · 60 km away
16. 1.539 km NE of Adak, AlaskaTue, May 25, 4:30 PM HADT · 1956 days ago · 10 km deep · 25 km away
17. 1.637 km NE of Adak, AlaskaTue, May 25, 5:25 PM HADT · 1956 days ago · 10 km deep · 26 km away
18. 1.638 km NE of Adak, AlaskaTue, May 25, 7:48 PM HADT · 1956 days ago · 8 km deep · 27 km away
19. 2.984 km E of Adak, AlaskaWed, May 26, 2:50 AM HADT · 1956 days ago · 238 km deep · 39 km away
20. 2.744 km E of Adak, AlaskaSat, May 29, 9:58 AM HADT · 1952 days ago · 69 km deep · 12 km away
21. 4.246 km SW of Adak, AlaskaSun, May 30, 1:56 AM HADT · 1952 days ago · 48 km deep · 87 km away
22. 1.750 km W of Adak, AlaskaSun, May 30, 7:01 PM HADT · 1951 days ago · 71 km deep · 96 km away
23. 2.039 km ESE of Adak, AlaskaMon, May 31, 12:48 AM HADT · 1951 days ago · 62 km deep · 16 km away
24. 2.042 km SW of Atka, AlaskaMon, May 31, 6:08 AM HADT · 1951 days ago · 55 km deep · 93 km away
25. 2.754 km WSW of Adak, AlaskaThu, Jun 10, 9:48 PM HADT · 1940 days ago · 96 km deep · 100 km away
26. 2.873 km ESE of Adak, AlaskaFri, Jun 11, 9:28 AM HADT · 1940 days ago · 70 km deep · 35 km away
27. 1.640 km ENE of Adak, AlaskaSat, Jun 12, 6:43 AM HADT · 1939 days ago · 154 km deep · 18 km away
28. 2.193 km SW of Atka, AlaskaWed, Jun 16, 12:07 AM HADT · 1935 days ago · 24 km deep · 82 km away
29. 1.754 km SSE of Adak, AlaskaFri, Jun 18, 5:54 AM HADT · 1933 days ago · 27 km deep · 67 km away
30. 1.9105 km SSW of Atka, AlaskaFri, Jun 18, 12:51 PM HADT · 1932 days ago · 64 km deep · 86 km away
31. 1.694 km ESE of Adak, AlaskaFri, Jun 18, 2:54 PM HADT · 1932 days ago · 36 km deep · 57 km away
32. 1.642 km ENE of Adak, AlaskaTue, Jun 22, 3:23 PM HADT · 1928 days ago · 3 km deep · 18 km away

Before

1. 1.746 km W of Adak, AlaskaWed, Apr 28, 5:20 AM HADT · 1984 days ago · 80 km deep · 91 km away
2. 2.869 km ENE of Adak, AlaskaWed, Apr 28, 12:02 AM HADT · 1984 days ago · 82 km deep · 26 km away
3. 2.041 km SSE of Adak, AlaskaTue, Apr 27, 6:56 PM HADT · 1984 days ago · 36 km deep · 53 km away
4. 1.849 km S of Adak, AlaskaTue, Apr 27, 6:30 PM HADT · 1984 days ago · 25 km deep · 68 km away
5. 1.746 km ENE of Adak, AlaskaTue, Apr 27, 10:22 AM HADT · 1984 days ago · 8 km deep · 15 km away
6. 1.860 km SE of Adak, AlaskaTue, Apr 27, 12:51 AM HADT · 1985 days ago · 26 km deep · 56 km away
7. 2.256 km WNW of Atka, AlaskaMon, Apr 26, 4:38 AM HADT · 1986 days ago · 78 km deep · 83 km away
8. 2.057 km SSE of Adak, AlaskaSun, Apr 25, 1:24 AM HADT · 1987 days ago · 27 km deep · 57 km away
9. 2.881 km SE of Adak, AlaskaSun, Apr 25, 1:16 AM HADT · 1987 days ago · 33 km deep · 57 km away
10. 2.5Andreanof Islands, Aleutian Islands, AlaskaSat, Apr 24, 8:41 PM HADT · 1987 days ago · 35 km deep · 68 km away
11. 1.771 km SW of Atka, AlaskaSat, Apr 24, 3:01 AM HADT · 1988 days ago · 38 km deep · 66 km away
12. 1.950 km S of Adak, AlaskaFri, Apr 23, 9:15 PM HADT · 1988 days ago · 25 km deep · 67 km away
13. 3.893 km ESE of Adak, AlaskaFri, Apr 23, 4:26 PM HADT · 1988 days ago · 50 km deep · 54 km away
14. 1.766 km SW of Atka, AlaskaFri, Apr 23, 10:50 AM HADT · 1988 days ago · 63 km deep · 72 km away
15. 2.547 km SW of Adak, AlaskaFri, Apr 23, 9:56 AM HADT · 1988 days ago · 24 km deep · 89 km away
16. 2.635 km NE of Adak, AlaskaThu, Apr 22, 6:50 PM HADT · 1989 days ago · 10 km deep · 23 km away
17. 2.232 km NE of Adak, AlaskaThu, Apr 22, 6:37 PM HADT · 1989 days ago · 9 km deep · 28 km away
18. 1.834 km ENE of Adak, AlaskaThu, Apr 22, 6:37 PM HADT · 1989 days ago · 11 km deep · 20 km away
19. 1.560 km SSW of Adak, AlaskaThu, Apr 22, 11:49 AM HADT · 1989 days ago · 26 km deep · 91 km away
20. 3.7106 km ESE of Adak, AlaskaThu, Apr 22, 10:06 AM HADT · 1989 days ago · 35 km deep · 71 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0215gtn1ov. Read Sat, Oct 3, 2026, 6:05 AM UTC.