M1.6 earthquake 54 km WSW of False Pass, Alaska

Magnitude

1.6 (ml), micro

Local time

Wed, Aug 11, 2021, 7:23 PM AKDT

UTC

2021-08-12 03:23:04 UTC

Depth

4.8 km (3.0 mi), shallow

Epicenter

54.749° N, 164.243° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

28

• Akutan, AlaskaPopulation 1,040. Forecast120 kmNE

After

1. 1.898 km S of False Pass, AlaskaWed, Aug 11, 7:40 PM AKDT · 1869 days ago · 26 km deep · 98 km away
2. 1.854 km W of False Pass, AlaskaWed, Aug 11, 9:41 PM AKDT · 1869 days ago · 3 km deep · 1 km away
3. 1.580 km ENE of Akutan, AlaskaThu, Aug 12, 1:14 PM AKDT · 1868 days ago · 6 km deep · 42 km away
4. 2.185 km S of False Pass, AlaskaThu, Aug 12, 8:29 PM AKDT · 1868 days ago · 46 km deep · 88 km away
5. 2.284 km SSW of False Pass, AlaskaTue, Aug 17, 4:27 PM AKDT · 1863 days ago · 35 km deep · 77 km away
6. 1.570 km SSW of False Pass, AlaskaThu, Aug 19, 4:51 PM AKDT · 1861 days ago · 53 km deep · 69 km away
7. 1.9Unimak Island region, AlaskaSat, Aug 21, 6:19 PM AKDT · 1859 days ago · 13 km deep · 61 km away
8. 2.537 km SSE of False Pass, AlaskaMon, Aug 23, 2:56 AM AKDT · 1857 days ago · 10 km deep · 68 km away
9. 1.631 km SSE of False Pass, AlaskaTue, Aug 24, 7:17 AM AKDT · 1856 days ago · 11 km deep · 63 km away
10. 1.536 km S of False Pass, AlaskaWed, Aug 25, 12:00 AM AKDT · 1855 days ago · 56 km deep · 65 km away
11. 1.889 km S of False Pass, AlaskaWed, Aug 25, 3:51 PM AKDT · 1855 days ago · 26 km deep · 94 km away
12. 1.770 km S of False Pass, AlaskaFri, Aug 27, 5:18 AM AKDT · 1853 days ago · 31 km deep · 80 km away
13. 1.917 km W of False Pass, AlaskaFri, Aug 27, 6:43 AM AKDT · 1853 days ago · 105 km deep · 38 km away
14. 1.693 km SSW of False Pass, AlaskaSat, Aug 28, 1:44 AM AKDT · 1852 days ago · 25 km deep · 67 km away
15. 1.943 km SSE of False Pass, AlaskaSat, Aug 28, 11:45 AM AKDT · 1852 days ago · 56 km deep · 72 km away
16. 1.758 km S of False Pass, AlaskaSun, Aug 29, 6:07 AM AKDT · 1851 days ago · 60 km deep · 74 km away
17. 1.579 km E of Akutan, AlaskaSun, Aug 29, 4:59 PM AKDT · 1851 days ago · 60 km deep · 83 km away
18. 2.089 km NNE of Akutan, AlaskaTue, Aug 31, 10:43 AM AKDT · 1849 days ago · 147 km deep · 67 km away
19. 1.678 km SSW of False Pass, AlaskaWed, Sep 1, 7:57 AM AKDT · 1848 days ago · 70 km deep · 59 km away
20. 2.188 km SW of False Pass, AlaskaWed, Sep 1, 9:33 AM AKDT · 1848 days ago · 76 km deep · 52 km away
21. 1.661 km SW of False Pass, AlaskaWed, Sep 1, 9:07 PM AKDT · 1848 days ago · 73 km deep · 43 km away
22. 1.991 km E of Akutan, AlaskaThu, Sep 2, 4:48 AM AKDT · 1847 days ago · 66 km deep · 59 km away
23. 1.799 km S of False Pass, AlaskaFri, Sep 3, 7:45 AM AKDT · 1846 days ago · 42 km deep · 93 km away
24. 1.781 km ESE of Akutan, AlaskaMon, Sep 6, 1:11 AM AKDT · 1843 days ago · 33 km deep · 91 km away
25. 1.712 km SSW of False Pass, AlaskaTue, Sep 7, 8:54 PM AKDT · 1842 days ago · 115 km deep · 48 km away
26. 1.680 km ENE of Akutan, AlaskaWed, Sep 8, 6:16 AM AKDT · 1841 days ago · 29 km deep · 48 km away
27. 1.834 km S of False Pass, AlaskaWed, Sep 8, 6:00 PM AKDT · 1841 days ago · 78 km deep · 55 km away
28. 2.897 km S of False Pass, AlaskaFri, Sep 10, 2:20 AM AKDT · 1839 days ago · 35 km deep · 95 km away
29. 3.3Unimak Island region, AlaskaTue, Sep 14, 7:34 PM AKDT · 1835 days ago · 71 km deep · 67 km away
30. 2.092 km SSW of False Pass, AlaskaWed, Sep 15, 6:15 PM AKDT · 1834 days ago · 51 km deep · 86 km away
31. 1.938 km S of False Pass, AlaskaWed, Sep 15, 9:54 PM AKDT · 1834 days ago · 69 km deep · 55 km away
32. 2.043 km ESE of False Pass, AlaskaSun, Sep 19, 7:18 AM AKDT · 1830 days ago · 11 km deep · 95 km away
33. 2.054 km E of Akutan, AlaskaWed, Sep 22, 7:17 AM AKDT · 1827 days ago · 71 km deep · 85 km away
34. 2.092 km S of False Pass, AlaskaSat, Sep 25, 6:44 PM AKDT · 1824 days ago · 21 km deep · 91 km away
35. 2.165 km ESE of Akutan, AlaskaSun, Sep 26, 8:23 AM AKDT · 1823 days ago · 23 km deep · 89 km away
36. 2.151 km S of False Pass, AlaskaThu, Sep 30, 9:08 PM AKDT · 1819 days ago · 63 km deep · 64 km away
37. 2.260 km E of Akutan, AlaskaFri, Oct 1, 3:55 AM AKDT · 1818 days ago · 76 km deep · 81 km away
38. 2.075 km ESE of Akutan, AlaskaSat, Oct 2, 7:01 AM AKDT · 1817 days ago · 34 km deep · 97 km away
39. 1.632 km S of False Pass, AlaskaMon, Oct 4, 9:47 PM AKDT · 1815 days ago · 11 km deep · 62 km away

Before

1. 2.155 km WSW of False Pass, AlaskaWed, Aug 11, 7:14 PM AKDT · 1869 days ago · 5 km deep · 1 km away
2. 1.553 km WSW of False Pass, AlaskaWed, Aug 11, 7:07 PM AKDT · 1869 days ago · 5 km deep · 1 km away
3. 2.153 km WSW of False Pass, AlaskaWed, Aug 11, 6:54 PM AKDT · 1869 days ago · 4 km deep · 1 km away
4. 1.682 km ENE of Akutan, AlaskaTue, Aug 10, 12:31 PM AKDT · 1870 days ago · 20 km deep · 53 km away
5. 1.897 km SSW of False Pass, AlaskaTue, Aug 10, 10:19 AM AKDT · 1870 days ago · 24 km deep · 72 km away
6. 2.542 km SSE of False Pass, AlaskaMon, Aug 9, 7:50 PM AKDT · 1871 days ago · 10 km deep · 71 km away
7. 2.191 km S of False Pass, AlaskaMon, Aug 9, 2:55 AM AKDT · 1871 days ago · 26 km deep · 89 km away
8. 2.176 km E of Akutan, AlaskaSat, Aug 7, 2:30 PM AKDT · 1873 days ago · 14 km deep · 65 km away
9. 1.775 km E of Akutan, AlaskaSun, Aug 1, 12:36 AM AKDT · 1879 days ago · 23 km deep · 62 km away
10. 2.1Unimak Island region, AlaskaSat, Jul 31, 10:37 PM AKDT · 1879 days ago · 11 km deep · 61 km away
11. 1.576 km E of Akutan, AlaskaFri, Jul 30, 8:24 AM AKDT · 1881 days ago · 21 km deep · 64 km away
12. 1.876 km E of Akutan, AlaskaWed, Jul 28, 7:44 AM AKDT · 1883 days ago · 13 km deep · 66 km away
13. 2.146 km ESE of False Pass, AlaskaWed, Jul 28, 3:54 AM AKDT · 1883 days ago · 7 km deep · 97 km away
14. 1.878 km E of Akutan, AlaskaWed, Jul 28, 3:41 AM AKDT · 1883 days ago · 13 km deep · 66 km away
15. 1.577 km E of Akutan, AlaskaMon, Jul 26, 10:52 PM AKDT · 1884 days ago · 13 km deep · 65 km away
16. 1.578 km E of Akutan, AlaskaMon, Jul 26, 10:44 PM AKDT · 1884 days ago · 13 km deep · 66 km away
17. 1.671 km SSE of False Pass, AlaskaMon, Jul 26, 6:40 PM AKDT · 1885 days ago · 19 km deep · 98 km away
18. 2.573 km SSE of False Pass, AlaskaSun, Jul 25, 8:24 AM AKDT · 1886 days ago · 45 km deep · 99 km away
19. 1.6Unimak Island region, AlaskaSun, Jul 25, 6:39 AM AKDT · 1886 days ago · 12 km deep · 61 km away
20. 1.754 km SSW of False Pass, AlaskaSun, Jul 25, 12:04 AM AKDT · 1886 days ago · 78 km deep · 45 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021aaiaz8i (also filed as av91336531). Read Wed, Sep 23, 2026, 5:36 PM UTC.