M2.9 earthquake 172 km W of Adak, Alaska

Magnitude

2.9 (ml), micro

Local time

Mon, May 17, 2021, 5:42 AM HADT

UTC

2021-05-17 14:42:42 UTC

Depth

10.0 km (6.2 mi), shallow

Epicenter

51.755° N, 179.134° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.4 km horizontally, 1.9 km in depth

Magnitude uncertainty

±0.15

Depth from

Operator assigned

Station coverage gap

297°, poorly surrounded by stations

Stations used

23

After

1. 4.2122 km WSW of Adak, AlaskaWed, May 19, 6:05 PM HADT · 1955 days ago · 35 km deep · 63 km away
2. 1.979 km W of Adak, AlaskaThu, May 20, 8:56 PM HADT · 1954 days ago · 9 km deep · 93 km away
3. 1.6141 km WSW of Adak, AlaskaFri, May 21, 3:15 AM HADT · 1954 days ago · 23 km deep · 44 km away
4. 2.0157 km WSW of Adak, AlaskaFri, May 21, 11:06 PM HADT · 1953 days ago · 15 km deep · 59 km away
5. 1.581 km W of Adak, AlaskaSun, May 23, 10:39 AM HADT · 1951 days ago · 8 km deep · 92 km away
6. 3.1144 km W of Adak, AlaskaSun, May 23, 12:06 PM HADT · 1951 days ago · 81 km deep · 32 km away
7. 1.5125 km WSW of Adak, AlaskaTue, May 25, 11:51 PM HADT · 1949 days ago · 15 km deep · 52 km away
8. 2.7154 km W of Adak, AlaskaThu, May 27, 11:33 AM HADT · 1947 days ago · 90 km deep · 23 km away
9. 1.9128 km WSW of Adak, AlaskaFri, May 28, 7:28 PM HADT · 1946 days ago · 42 km deep · 77 km away
10. 2.0108 km WSW of Adak, AlaskaSat, May 29, 6:57 AM HADT · 1945 days ago · 48 km deep · 86 km away
11. 1.7120 km WSW of Adak, AlaskaSun, May 30, 6:11 PM HADT · 1944 days ago · 26 km deep · 69 km away
12. 1.8158 km WSW of Adak, AlaskaSun, Jun 6, 2:12 AM HADT · 1938 days ago · 18 km deep · 47 km away
13. 1.6127 km WSW of Adak, AlaskaSun, Jun 6, 11:37 AM HADT · 1937 days ago · 7 km deep · 54 km away
14. 3.8170 km WNW of Adak, AlaskaMon, Jun 7, 7:25 AM HADT · 1936 days ago · 206 km deep · 76 km away
15. 1.5169 km W of Adak, AlaskaTue, Jun 8, 8:34 AM HADT · 1935 days ago · 9 km deep · 5 km away
16. 1.7133 km WSW of Adak, AlaskaFri, Jun 11, 12:04 PM HADT · 1932 days ago · 9 km deep · 44 km away
17. 3.0150 km WSW of Adak, AlaskaFri, Jun 11, 9:19 PM HADT · 1932 days ago · 18 km deep · 58 km away
18. 2.6144 km WSW of Adak, AlaskaFri, Jun 11, 9:19 PM HADT · 1932 days ago · 9 km deep · 52 km away
19. 2.9247 km WSW of Adak, AlaskaFri, Jun 11, 7:48 PM GMT-12 · 1932 days ago · 35 km deep · 94 km away
20. 1.6157 km WSW of Adak, AlaskaSat, Jun 12, 8:17 PM HADT · 1931 days ago · 20 km deep · 61 km away
21. 3.8256 km WSW of Adak, AlaskaWed, Jun 16, 2:07 AM GMT+12 · 1929 days ago · 54 km deep · 87 km away
22. 2.6156 km WSW of Adak, AlaskaTue, Jun 15, 6:28 AM HADT · 1928 days ago · 10 km deep · 68 km away
23. 1.6154 km WSW of Adak, AlaskaWed, Jun 16, 2:27 PM HADT · 1927 days ago · 8 km deep · 50 km away
24. 2.6157 km WSW of Adak, AlaskaFri, Jun 18, 2:04 AM HADT · 1926 days ago · 28 km deep · 52 km away
25. 1.5111 km WSW of Adak, AlaskaFri, Jun 18, 4:54 AM HADT · 1926 days ago · 12 km deep · 71 km away
26. 2.0Andreanof Islands, Aleutian Islands, AlaskaFri, Jun 18, 6:10 AM HADT · 1925 days ago · 90 km deep · 52 km away
27. 1.8130 km WSW of Adak, AlaskaFri, Jun 18, 9:39 AM HADT · 1925 days ago · 45 km deep · 77 km away
28. 2.776 km W of Adak, AlaskaFri, Jun 18, 2:45 PM HADT · 1925 days ago · 110 km deep · 97 km away
29. 1.8158 km WSW of Adak, AlaskaSat, Jun 19, 4:34 AM HADT · 1925 days ago · 12 km deep · 29 km away
30. 1.8137 km WSW of Adak, AlaskaSat, Jun 19, 3:43 PM HADT · 1924 days ago · 16 km deep · 42 km away
31. 1.6145 km W of Adak, AlaskaTue, Jun 22, 7:49 PM HADT · 1921 days ago · 7 km deep · 29 km away
32. 1.5133 km WSW of Adak, AlaskaTue, Jun 22, 10:30 PM HADT · 1921 days ago · 14 km deep · 47 km away
33. 1.888 km W of Adak, AlaskaSun, Jun 27, 3:19 PM HADT · 1916 days ago · 8 km deep · 84 km away
34. 1.8200 km W of Adak, AlaskaSun, Jun 27, 8:12 PM HADT · 1916 days ago · 78 km deep · 28 km away
35. 1.8133 km WSW of Adak, AlaskaMon, Jun 28, 4:51 AM HADT · 1916 days ago · 22 km deep · 60 km away
36. 2.9107 km WSW of Adak, AlaskaMon, Jun 28, 5:40 AM HADT · 1915 days ago · 49 km deep · 88 km away
37. 1.6123 km WSW of Adak, AlaskaMon, Jun 28, 9:13 AM HADT · 1915 days ago · 42 km deep · 76 km away
38. 1.8161 km WSW of Adak, AlaskaMon, Jun 28, 11:04 AM HADT · 1915 days ago · 23 km deep · 41 km away
39. 1.7138 km WSW of Adak, AlaskaMon, Jun 28, 11:58 AM HADT · 1915 days ago · 41 km deep · 74 km away
40. 1.7126 km WSW of Adak, AlaskaMon, Jun 28, 2:06 PM HADT · 1915 days ago · 25 km deep · 69 km away
41. 1.8131 km WSW of Adak, AlaskaWed, Jun 30, 6:15 PM HADT · 1913 days ago · 13 km deep · 46 km away
42. 1.9230 km WSW of Adak, AlaskaThu, Jul 1, 12:38 AM HADT · 1913 days ago · 41 km deep · 64 km away
43. 1.5134 km SW of Adak, AlaskaFri, Jul 2, 5:14 PM HADT · 1911 days ago · 26 km deep · 90 km away
44. 1.7152 km WSW of Adak, AlaskaSat, Jul 3, 9:31 AM HADT · 1910 days ago · 25 km deep · 77 km away
45. 2.4104 km WNW of Adak, AlaskaSat, Jul 3, 1:22 PM HADT · 1910 days ago · 247 km deep · 87 km away
46. 1.6194 km WSW of Adak, AlaskaSat, Jul 3, 9:59 PM HADT · 1910 days ago · 22 km deep · 42 km away
47. 1.5237 km W of Adak, AlaskaSun, Jul 4, 10:43 PM GMT+12 · 1910 days ago · 9 km deep · 66 km away
48. 1.7131 km W of Adak, AlaskaSun, Jul 4, 2:43 AM HADT · 1910 days ago · 8 km deep · 42 km away
49. 3.9117 km SW of Adak, AlaskaSun, Jul 4, 10:05 AM HADT · 1909 days ago · 42 km deep · 97 km away
50. 3.7135 km SW of Adak, AlaskaSun, Jul 4, 5:14 PM HADT · 1909 days ago · 27 km deep · 86 km away
51. 1.6130 km WSW of Adak, AlaskaSun, Jul 4, 8:10 PM HADT · 1909 days ago · 17 km deep · 48 km away
52. 2.0194 km WSW of Adak, AlaskaMon, Jul 5, 7:42 AM HADT · 1908 days ago · 16 km deep · 68 km away
53. 2.1196 km WSW of Adak, AlaskaMon, Jul 5, 12:30 PM HADT · 1908 days ago · 15 km deep · 74 km away
54. 2.9203 km WSW of Adak, AlaskaMon, Jul 5, 12:31 PM HADT · 1908 days ago · 17 km deep · 80 km away
55. 2.0197 km WSW of Adak, AlaskaMon, Jul 5, 12:35 PM HADT · 1908 days ago · 18 km deep · 77 km away
56. 1.9100 km WSW of Adak, AlaskaMon, Jul 5, 1:07 PM HADT · 1908 days ago · 62 km deep · 86 km away
57. 2.7237 km W of Adak, AlaskaWed, Jul 7, 5:50 AM HADT · 1906 days ago · 13 km deep · 64 km away
58. 1.9Andreanof Islands, Aleutian Islands, AlaskaWed, Jul 7, 6:22 PM HADT · 1906 days ago · 22 km deep · 46 km away
59. 1.8158 km WSW of Adak, AlaskaThu, Jul 8, 2:14 AM HADT · 1906 days ago · 5 km deep · 57 km away
60. 1.7130 km WSW of Adak, AlaskaThu, Jul 8, 9:22 AM HADT · 1905 days ago · 7 km deep · 46 km away

The first 60 of 81.

Before

1. 1.5131 km WSW of Adak, AlaskaMon, May 17, 3:49 AM HADT · 1958 days ago · 5 km deep · 45 km away
2. 2.1184 km WSW of Adak, AlaskaFri, May 14, 3:18 AM HADT · 1961 days ago · 23 km deep · 60 km away
3. 1.8131 km WSW of Adak, AlaskaThu, May 13, 10:11 PM HADT · 1961 days ago · 12 km deep · 48 km away
4. 3.4202 km WSW of Adak, AlaskaThu, May 13, 4:31 PM HADT · 1961 days ago · 27 km deep · 63 km away
5. 3.8261 km W of Adak, AlaskaThu, May 13, 3:10 AM GMT+12 · 1962 days ago · 178 km deep · 93 km away
6. 1.9169 km WSW of Adak, AlaskaSat, May 8, 11:24 AM HADT · 1966 days ago · 13 km deep · 48 km away
7. 1.776 km W of Adak, AlaskaThu, May 6, 10:17 AM HADT · 1968 days ago · 1 km deep · 96 km away
8. 1.777 km W of Adak, AlaskaThu, May 6, 7:39 AM HADT · 1968 days ago · 3 km deep · 95 km away
9. 3.8154 km WSW of Adak, AlaskaWed, May 5, 4:34 AM HADT · 1970 days ago · 15 km deep · 62 km away
10. 2.0148 km WSW of Adak, AlaskaWed, May 5, 4:08 AM HADT · 1970 days ago · 9 km deep · 53 km away
11. 1.9124 km WSW of Adak, AlaskaTue, May 4, 12:51 PM HADT · 1970 days ago · 27 km deep · 80 km away
12. 1.8131 km WSW of Adak, AlaskaTue, May 4, 3:42 AM HADT · 1971 days ago · 13 km deep · 50 km away
13. 2.0181 km WSW of Adak, AlaskaMon, May 3, 7:28 PM HADT · 1971 days ago · 20 km deep · 48 km away
14. 2.0138 km WSW of Adak, AlaskaThu, Apr 29, 1:08 AM HADT · 1976 days ago · 26 km deep · 72 km away
15. 1.8127 km SW of Adak, AlaskaWed, Apr 28, 11:16 PM HADT · 1976 days ago · 40 km deep · 91 km away
16. 2.6102 km WSW of Adak, AlaskaWed, Apr 28, 5:44 PM HADT · 1976 days ago · 61 km deep · 88 km away
17. 1.6114 km WSW of Adak, AlaskaWed, Apr 28, 5:14 AM HADT · 1977 days ago · 19 km deep · 80 km away
18. 2.2145 km W of Adak, AlaskaTue, Apr 27, 2:35 PM HADT · 1977 days ago · 165 km deep · 30 km away
19. 1.5125 km WSW of Adak, AlaskaTue, Apr 27, 1:06 PM HADT · 1977 days ago · 13 km deep · 58 km away
20. 1.8166 km W of Adak, AlaskaTue, Apr 27, 12:12 PM HADT · 1977 days ago · 11 km deep · 7 km away

From the USGS Earthquake Hazards Program and its partner networks, event us7000e4jr (also filed as av91245946). Read Sat, Sep 26, 2026, 1:47 AM UTC.