M1.7 earthquake 109 km S of Atka, Alaska

Magnitude

1.7 (ml), micro

Local time

Wed, Sep 8, 2021, 3:09 AM HADT

UTC

2021-09-08 12:09:55 UTC

Depth

24.4 km (15.2 mi), shallow

Epicenter

51.212° N, 174.185° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

25

After

1. 1.972 km SSW of Atka, AlaskaWed, Sep 8, 7:43 PM HADT · 1846 days ago · 22 km deep · 57 km away
2. 3.689 km SW of Atka, AlaskaThu, Sep 9, 2:44 PM HADT · 1845 days ago · 35 km deep · 73 km away
3. 3.7101 km ESE of Adak, AlaskaFri, Sep 10, 5:00 AM HADT · 1845 days ago · 35 km deep · 84 km away
4. 3.147 km S of Atka, AlaskaFri, Sep 10, 8:42 AM HADT · 1844 days ago · 27 km deep · 62 km away
5. 3.131 km S of Atka, AlaskaFri, Sep 10, 9:35 AM HADT · 1844 days ago · 4 km deep · 79 km away
6. 1.950 km SSW of Atka, AlaskaFri, Sep 10, 2:59 PM HADT · 1844 days ago · 61 km deep · 62 km away
7. 3.1110 km SE of Atka, AlaskaMon, Sep 13, 3:54 AM HADT · 1842 days ago · 35 km deep · 79 km away
8. 2.9183 km SSE of Atka, AlaskaWed, Sep 15, 7:47 AM HADT · 1839 days ago · 21 km deep · 84 km away
9. 2.687 km S of Atka, AlaskaFri, Sep 17, 1:22 AM HADT · 1838 days ago · 35 km deep · 22 km away
10. 1.947 km SSW of Atka, AlaskaFri, Sep 17, 2:54 AM HADT · 1838 days ago · 53 km deep · 64 km away
11. 3.0135 km SSW of Atka, AlaskaFri, Sep 17, 8:34 AM HADT · 1837 days ago · 14 km deep · 52 km away
12. 2.7105 km SSE of Atka, AlaskaSun, Sep 19, 8:14 PM HADT · 1835 days ago · 35 km deep · 58 km away
13. 2.796 km SSE of Atka, AlaskaMon, Sep 20, 1:23 AM HADT · 1835 days ago · 35 km deep · 29 km away
14. 2.777 km SE of Atka, AlaskaMon, Sep 20, 10:12 AM HADT · 1834 days ago · 35 km deep · 88 km away
15. 1.9Andreanof Islands, Aleutian Islands, AlaskaMon, Sep 20, 1:17 PM HADT · 1834 days ago · 36 km deep · 76 km away
16. 3.464 km SSE of Atka, AlaskaTue, Sep 21, 2:03 AM HADT · 1834 days ago · 35 km deep · 51 km away
17. 1.664 km SSW of Atka, AlaskaThu, Sep 23, 6:54 AM HADT · 1832 days ago · 21 km deep · 54 km away
18. 1.8Andreanof Islands, Aleutian Islands, AlaskaThu, Sep 23, 1:31 PM HADT · 1831 days ago · 56 km deep · 72 km away
19. 2.951 km SSW of Atka, AlaskaSat, Sep 25, 5:26 PM HADT · 1829 days ago · 35 km deep · 64 km away
20. 2.191 km S of Atka, AlaskaSat, Oct 2, 8:27 AM HADT · 1822 days ago · 4 km deep · 25 km away
21. 2.881 km SSE of Atka, AlaskaWed, Oct 6, 4:37 AM HADT · 1819 days ago · 35 km deep · 50 km away
22. 3.633 km SSW of Atka, AlaskaWed, Oct 6, 10:09 AM HADT · 1818 days ago · 75 km deep · 77 km away
23. 3.050 km SSE of Atka, AlaskaSat, Oct 9, 1:45 PM HADT · 1815 days ago · 35 km deep · 66 km away
24. 3.863 km WSW of Atka, AlaskaSun, Oct 10, 1:59 AM HADT · 1815 days ago · 81 km deep · 96 km away
25. 2.995 km S of Atka, AlaskaSun, Oct 10, 6:13 AM HADT · 1815 days ago · 17 km deep · 18 km away
26. 3.127 km SW of Atka, AlaskaSun, Oct 10, 10:21 AM HADT · 1814 days ago · 35 km deep · 90 km away
27. 4.981 km S of Atka, AlaskaMon, Oct 11, 9:25 AM HADT · 1813 days ago · 35 km deep · 34 km away
28. 3.0108 km SE of Atka, AlaskaTue, Oct 12, 2:37 PM HADT · 1812 days ago · 31 km deep · 92 km away
29. 3.134 km WSW of Atka, AlaskaThu, Oct 14, 2:52 AM HADT · 1811 days ago · 138 km deep · 96 km away
30. 1.890 km ESE of Adak, AlaskaThu, Oct 14, 11:52 PM HADT · 1810 days ago · 54 km deep · 96 km away
31. 1.822 km SW of Atka, AlaskaFri, Oct 15, 6:50 AM HADT · 1810 days ago · 72 km deep · 98 km away
32. 3.693 km ESE of Adak, AlaskaWed, Oct 20, 8:49 AM HADT · 1804 days ago · 24 km deep · 93 km away
33. 1.889 km SW of Atka, AlaskaMon, Oct 25, 12:09 PM HADT · 1799 days ago · 26 km deep · 70 km away
34. 2.929 km SSW of Atka, AlaskaMon, Oct 25, 7:25 PM HADT · 1799 days ago · 10 km deep · 82 km away
35. 1.833 km SSW of Atka, AlaskaTue, Oct 26, 12:08 AM HADT · 1799 days ago · 71 km deep · 81 km away
36. 4.069 km SSE of Atka, AlaskaThu, Oct 28, 9:38 AM HADT · 1796 days ago · 53 km deep · 47 km away
37. 2.7138 km SE of Atka, AlaskaSat, Oct 30, 12:57 AM HADT · 1795 days ago · 10 km deep · 90 km away
38. 2.1178 km S of Atka, AlaskaSat, Oct 30, 7:32 PM HADT · 1794 days ago · 23 km deep · 70 km away
39. 2.345 km S of Atka, AlaskaSun, Oct 31, 12:36 AM HADT · 1794 days ago · 223 km deep · 64 km away
40. 1.627 km SW of Atka, AlaskaSun, Oct 31, 3:22 AM HADT · 1794 days ago · 67 km deep · 90 km away
41. 1.627 km SW of Atka, AlaskaSun, Oct 31, 3:22 AM HADT · 1794 days ago · 67 km deep · 90 km away
42. 1.980 km SSW of Atka, AlaskaSun, Oct 31, 5:53 AM HADT · 1794 days ago · 29 km deep · 51 km away
43. 2.7108 km S of Atka, AlaskaSun, Oct 31, 5:56 AM HADT · 1794 days ago · 28 km deep · 18 km away
44. 2.790 km SSW of Atka, AlaskaSun, Oct 31, 6:04 AM HADT · 1794 days ago · 35 km deep · 40 km away
45. 4.097 km S of Atka, AlaskaTue, Nov 2, 9:14 AM HADT · 1791 days ago · 12 km deep · 13 km away
46. 3.983 km SSE of Atka, AlaskaTue, Nov 2, 11:41 PM HADT · 1791 days ago · 35 km deep · 35 km away
47. 2.483 km S of Atka, AlaskaWed, Nov 3, 1:11 AM HADT · 1791 days ago · 25 km deep · 30 km away
48. 2.4112 km SSE of Atka, AlaskaWed, Nov 3, 5:50 AM HADT · 1791 days ago · 37 km deep · 34 km away
49. 2.675 km SSW of Atka, AlaskaWed, Nov 3, 8:06 PM HADT · 1790 days ago · 35 km deep · 61 km away
50. 2.5103 km ESE of Adak, AlaskaThu, Nov 4, 12:31 PM HADT · 1789 days ago · 35 km deep · 82 km away
51. 1.872 km SW of Atka, AlaskaFri, Nov 5, 4:24 AM HADT · 1789 days ago · 17 km deep · 70 km away
52. 2.8111 km SSE of Atka, AlaskaSat, Nov 6, 12:01 AM HADT · 1788 days ago · 35 km deep · 50 km away
53. 3.4103 km SE of Atka, AlaskaSat, Nov 6, 7:38 PM HADT · 1787 days ago · 35 km deep · 84 km away

Before

1. 2.893 km SSE of Atka, AlaskaTue, Sep 7, 5:09 PM HADT · 1847 days ago · 35 km deep · 32 km away
2. 2.866 km S of Atka, AlaskaSun, Sep 5, 8:48 AM HADT · 1849 days ago · 35 km deep · 45 km away
3. 2.588 km ESE of Adak, AlaskaSat, Sep 4, 10:10 AM HADT · 1850 days ago · 58 km deep · 99 km away
4. 3.1113 km SE of Atka, AlaskaFri, Sep 3, 2:56 PM HADT · 1851 days ago · 35 km deep · 94 km away
5. 2.8182 km SE of Adak, AlaskaFri, Sep 3, 11:07 AM HADT · 1851 days ago · 29 km deep · 98 km away
6. 1.753 km SSE of Atka, AlaskaThu, Sep 2, 11:20 PM HADT · 1852 days ago · 35 km deep · 67 km away
7. 2.2180 km SSE of Atka, AlaskaThu, Sep 2, 12:10 PM HADT · 1852 days ago · 22 km deep · 93 km away
8. 2.2140 km SE of Atka, AlaskaThu, Sep 2, 2:59 AM HADT · 1853 days ago · 14 km deep · 99 km away
9. 2.7188 km S of Atka, AlaskaTue, Aug 31, 4:08 AM HADT · 1855 days ago · 10 km deep · 79 km away
10. 2.1178 km S of Atka, AlaskaMon, Aug 30, 6:16 AM HADT · 1856 days ago · 7 km deep · 71 km away
11. 2.2187 km SSW of Atka, AlaskaSun, Aug 29, 9:45 AM HADT · 1856 days ago · 24 km deep · 86 km away
12. 1.661 km SSE of Atka, AlaskaSat, Aug 28, 4:49 AM HADT · 1858 days ago · 25 km deep · 57 km away
13. 2.085 km SSE of Atka, AlaskaThu, Aug 26, 8:40 PM HADT · 1859 days ago · 4 km deep · 53 km away
14. 1.796 km ESE of Adak, AlaskaThu, Aug 26, 3:50 PM HADT · 1859 days ago · 29 km deep · 90 km away
15. 2.983 km SE of Atka, AlaskaThu, Aug 26, 3:47 PM HADT · 1859 days ago · 35 km deep · 92 km away
16. 1.9170 km SE of Adak, AlaskaWed, Aug 25, 9:26 PM HADT · 1860 days ago · 10 km deep · 90 km away
17. 1.542 km ESE of Atka, AlaskaWed, Aug 25, 3:39 PM HADT · 1860 days ago · 14 km deep · 94 km away
18. 2.1165 km SSE of Atka, AlaskaWed, Aug 25, 3:24 PM HADT · 1860 days ago · 11 km deep · 64 km away
19. 1.696 km ESE of Adak, AlaskaTue, Aug 24, 10:56 PM HADT · 1861 days ago · 26 km deep · 89 km away
20. 1.690 km SSE of Atka, AlaskaMon, Aug 23, 3:23 PM HADT · 1862 days ago · 41 km deep · 38 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021bjb3cwy. Read Tue, Sep 29, 2026, 3:40 AM UTC.