M1.9 earthquake 47 km SSW of Atka, Alaska

Magnitude

1.9 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Fri, Sep 17, 2021, 2:54 AM HADT

UTC

2021-09-17 11:54:52 UTC

Depth

53.3 km (33.1 mi), shallow

Epicenter

51.779° N, 174.366° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

16

After

1. 3.0135 km SSW of Atka, AlaskaFri, Sep 17, 8:34 AM HADT · 1841 days ago · 14 km deep · 88 km away
2. 2.543 km NW of Atka, AlaskaFri, Sep 17, 10:43 AM HADT · 1841 days ago · 216 km deep · 78 km away
3. 2.7105 km SSE of Atka, AlaskaSun, Sep 19, 8:14 PM HADT · 1839 days ago · 35 km deep · 79 km away
4. 1.777 km SE of Adak, AlaskaSun, Sep 19, 9:09 PM HADT · 1839 days ago · 23 km deep · 100 km away
5. 1.883 km E of Adak, AlaskaMon, Sep 20, 12:58 AM HADT · 1838 days ago · 64 km deep · 73 km away
6. 2.796 km SSE of Atka, AlaskaMon, Sep 20, 1:23 AM HADT · 1838 days ago · 35 km deep · 59 km away
7. 1.561 km ESE of Adak, AlaskaMon, Sep 20, 7:14 AM HADT · 1838 days ago · 44 km deep · 99 km away
8. 2.332 km ESE of Atka, AlaskaMon, Sep 20, 8:44 AM HADT · 1838 days ago · 126 km deep · 55 km away
9. 2.777 km SE of Atka, AlaskaMon, Sep 20, 10:12 AM HADT · 1838 days ago · 35 km deep · 74 km away
10. 1.9Andreanof Islands, Aleutian Islands, AlaskaMon, Sep 20, 1:17 PM HADT · 1838 days ago · 36 km deep · 51 km away
11. 2.182 km ENE of Adak, AlaskaMon, Sep 20, 11:08 PM HADT · 1837 days ago · 90 km deep · 87 km away
12. 3.464 km SSE of Atka, AlaskaTue, Sep 21, 2:03 AM HADT · 1837 days ago · 35 km deep · 34 km away
13. 1.664 km SSW of Atka, AlaskaThu, Sep 23, 6:54 AM HADT · 1835 days ago · 21 km deep · 18 km away
14. 1.8Andreanof Islands, Aleutian Islands, AlaskaThu, Sep 23, 1:31 PM HADT · 1835 days ago · 56 km deep · 18 km away
15. 2.951 km SSW of Atka, AlaskaSat, Sep 25, 5:26 PM HADT · 1833 days ago · 35 km deep · 7 km away
16. 1.876 km ESE of Adak, AlaskaSat, Sep 25, 7:12 PM HADT · 1833 days ago · 20 km deep · 91 km away
17. 2.632 km ESE of Atka, AlaskaSun, Sep 26, 4:38 AM HADT · 1832 days ago · 80 km deep · 54 km away
18. 2.191 km S of Atka, AlaskaSat, Oct 2, 8:27 AM HADT · 1826 days ago · 4 km deep · 44 km away
19. 1.993 km ESE of Atka, AlaskaSat, Oct 2, 9:11 PM HADT · 1826 days ago · 58 km deep · 92 km away
20. 1.975 km E of Adak, AlaskaTue, Oct 5, 3:27 AM HADT · 1823 days ago · 29 km deep · 81 km away
21. 2.881 km SSE of Atka, AlaskaWed, Oct 6, 4:37 AM HADT · 1822 days ago · 35 km deep · 54 km away
22. 3.633 km SSW of Atka, AlaskaWed, Oct 6, 10:09 AM HADT · 1822 days ago · 75 km deep · 14 km away
23. 1.966 km E of Adak, AlaskaFri, Oct 8, 4:51 PM HADT · 1820 days ago · 62 km deep · 90 km away
24. 3.050 km SSE of Atka, AlaskaSat, Oct 9, 1:45 PM HADT · 1819 days ago · 35 km deep · 31 km away
25. 3.863 km WSW of Atka, AlaskaSun, Oct 10, 1:59 AM HADT · 1818 days ago · 81 km deep · 46 km away
26. 2.995 km S of Atka, AlaskaSun, Oct 10, 6:13 AM HADT · 1818 days ago · 17 km deep · 49 km away
27. 3.127 km SW of Atka, AlaskaSun, Oct 10, 10:21 AM HADT · 1818 days ago · 35 km deep · 26 km away
28. 2.165 km E of Adak, AlaskaSun, Oct 10, 11:04 AM HADT · 1818 days ago · 29 km deep · 91 km away
29. 4.981 km S of Atka, AlaskaMon, Oct 11, 9:25 AM HADT · 1817 days ago · 35 km deep · 34 km away
30. 3.0108 km SE of Atka, AlaskaTue, Oct 12, 2:37 PM HADT · 1816 days ago · 31 km deep · 98 km away
31. 3.134 km WSW of Atka, AlaskaThu, Oct 14, 2:52 AM HADT · 1814 days ago · 138 km deep · 34 km away
32. 1.890 km ESE of Adak, AlaskaThu, Oct 14, 11:52 PM HADT · 1813 days ago · 54 km deep · 70 km away
33. 1.959 km WNW of Atka, AlaskaFri, Oct 15, 5:05 AM HADT · 1813 days ago · 108 km deep · 84 km away
34. 1.822 km SW of Atka, AlaskaFri, Oct 15, 6:50 AM HADT · 1813 days ago · 72 km deep · 34 km away
35. 2.885 km ESE of Adak, AlaskaFri, Oct 15, 11:13 AM HADT · 1813 days ago · 52 km deep · 74 km away
36. 3.693 km ESE of Adak, AlaskaWed, Oct 20, 8:49 AM HADT · 1808 days ago · 24 km deep · 67 km away
37. 2.469 km WNW of Atka, AlaskaFri, Oct 22, 7:00 PM HADT · 1806 days ago · 120 km deep · 87 km away
38. 2.081 km ENE of Adak, AlaskaSat, Oct 23, 5:38 PM HADT · 1805 days ago · 115 km deep · 83 km away
39. 1.889 km SW of Atka, AlaskaMon, Oct 25, 12:09 PM HADT · 1803 days ago · 26 km deep · 51 km away
40. 2.929 km SSW of Atka, AlaskaMon, Oct 25, 7:25 PM HADT · 1803 days ago · 10 km deep · 19 km away
41. 1.833 km SSW of Atka, AlaskaTue, Oct 26, 12:08 AM HADT · 1802 days ago · 71 km deep · 17 km away
42. 2.974 km W of Atka, AlaskaTue, Oct 26, 3:37 PM HADT · 1802 days ago · 252 km deep · 73 km away
43. 1.982 km ESE of Adak, AlaskaWed, Oct 27, 9:07 PM HADT · 1801 days ago · 48 km deep · 82 km away
44. 1.985 km ESE of Adak, AlaskaThu, Oct 28, 4:08 AM HADT · 1800 days ago · 44 km deep · 76 km away
45. 4.069 km SSE of Atka, AlaskaThu, Oct 28, 9:38 AM HADT · 1800 days ago · 53 km deep · 37 km away
46. 2.062 km E of Adak, AlaskaThu, Oct 28, 1:08 PM HADT · 1800 days ago · 74 km deep · 95 km away
47. 1.881 km ESE of Adak, AlaskaThu, Oct 28, 10:29 PM HADT · 1800 days ago · 55 km deep · 79 km away
48. 2.678 km E of Adak, AlaskaFri, Oct 29, 9:40 AM HADT · 1799 days ago · 75 km deep · 78 km away
49. 2.345 km S of Atka, AlaskaSun, Oct 31, 12:36 AM HADT · 1797 days ago · 223 km deep · 7 km away
50. 1.627 km SW of Atka, AlaskaSun, Oct 31, 3:22 AM HADT · 1797 days ago · 67 km deep · 26 km away
51. 1.627 km SW of Atka, AlaskaSun, Oct 31, 3:22 AM HADT · 1797 days ago · 67 km deep · 26 km away
52. 1.980 km SSW of Atka, AlaskaSun, Oct 31, 5:53 AM HADT · 1797 days ago · 29 km deep · 35 km away
53. 2.7108 km S of Atka, AlaskaSun, Oct 31, 5:56 AM HADT · 1797 days ago · 28 km deep · 61 km away
54. 2.790 km SSW of Atka, AlaskaSun, Oct 31, 6:04 AM HADT · 1797 days ago · 35 km deep · 43 km away
55. 4.097 km S of Atka, AlaskaTue, Nov 2, 9:14 AM HADT · 1795 days ago · 12 km deep · 53 km away
56. 3.983 km SSE of Atka, AlaskaTue, Nov 2, 11:41 PM HADT · 1794 days ago · 35 km deep · 48 km away
57. 2.483 km S of Atka, AlaskaWed, Nov 3, 1:11 AM HADT · 1794 days ago · 25 km deep · 36 km away
58. 2.4112 km SSE of Atka, AlaskaWed, Nov 3, 5:50 AM HADT · 1794 days ago · 37 km deep · 76 km away
59. 2.675 km SSW of Atka, AlaskaWed, Nov 3, 8:06 PM HADT · 1794 days ago · 35 km deep · 33 km away
60. 2.5103 km ESE of Adak, AlaskaThu, Nov 4, 12:31 PM HADT · 1793 days ago · 35 km deep · 69 km away

The first 60 of 73.

Before

1. 2.687 km S of Atka, AlaskaFri, Sep 17, 1:22 AM HADT · 1841 days ago · 35 km deep · 43 km away
2. 3.1110 km SE of Atka, AlaskaMon, Sep 13, 3:54 AM HADT · 1845 days ago · 35 km deep · 93 km away
3. 1.950 km SSW of Atka, AlaskaFri, Sep 10, 2:59 PM HADT · 1848 days ago · 61 km deep · 4 km away
4. 3.131 km S of Atka, AlaskaFri, Sep 10, 9:35 AM HADT · 1848 days ago · 4 km deep · 17 km away
5. 3.147 km S of Atka, AlaskaFri, Sep 10, 8:42 AM HADT · 1848 days ago · 27 km deep · 7 km away
6. 3.7101 km ESE of Adak, AlaskaFri, Sep 10, 5:00 AM HADT · 1848 days ago · 35 km deep · 78 km away
7. 3.689 km SW of Atka, AlaskaThu, Sep 9, 2:44 PM HADT · 1849 days ago · 35 km deep · 52 km away
8. 1.972 km SSW of Atka, AlaskaWed, Sep 8, 7:43 PM HADT · 1850 days ago · 22 km deep · 28 km away
9. 1.7109 km S of Atka, AlaskaWed, Sep 8, 3:09 AM HADT · 1850 days ago · 24 km deep · 64 km away
10. 2.278 km ENE of Adak, AlaskaWed, Sep 8, 2:59 AM HADT · 1850 days ago · 236 km deep · 90 km away
11. 1.554 km ENE of Atka, AlaskaTue, Sep 7, 7:29 PM HADT · 1851 days ago · 4 km deep · 94 km away
12. 2.893 km SSE of Atka, AlaskaTue, Sep 7, 5:09 PM HADT · 1851 days ago · 35 km deep · 58 km away
13. 1.935 km NE of Atka, AlaskaTue, Sep 7, 3:14 PM HADT · 1851 days ago · 145 km deep · 79 km away
14. 2.114 km NW of Atka, AlaskaTue, Sep 7, 10:16 AM HADT · 1851 days ago · 155 km deep · 56 km away
15. 1.774 km ENE of Adak, AlaskaMon, Sep 6, 4:41 PM HADT · 1852 days ago · 137 km deep · 90 km away
16. 1.561 km W of Atka, AlaskaMon, Sep 6, 7:27 AM HADT · 1852 days ago · 13 km deep · 63 km away
17. 1.674 km ENE of Adak, AlaskaSun, Sep 5, 9:37 PM HADT · 1853 days ago · 149 km deep · 90 km away
18. 2.866 km S of Atka, AlaskaSun, Sep 5, 8:48 AM HADT · 1853 days ago · 35 km deep · 19 km away
19. 2.811 km NNE of Atka, AlaskaSat, Sep 4, 8:03 PM HADT · 1854 days ago · 10 km deep · 59 km away
20. 2.588 km ESE of Adak, AlaskaSat, Sep 4, 10:10 AM HADT · 1854 days ago · 58 km deep · 70 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021by6loqg. Read Fri, Oct 2, 2026, 7:35 PM UTC.