M2.4 earthquake 144 km SW of Nikolski, Alaska

Magnitude

2.4 (ml), micro

Local time

Fri, Jul 23, 2021, 3:35 PM HADT

UTC

2021-07-24 00:35:22 UTC

Depth

18.6 km (11.6 mi), shallow

Epicenter

52.070° N, 170.447° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

13

After

1. 1.857 km SW of Nikolski, AlaskaFri, Jul 23, 6:59 PM AKDT · 1892 days ago · 32 km deep · 87 km away
2. 2.544 km SW of Nikolski, AlaskaSat, Jul 24, 11:42 PM AKDT · 1891 days ago · 33 km deep · 100 km away
3. 1.663 km SW of Nikolski, AlaskaSun, Jul 25, 12:51 AM AKDT · 1891 days ago · 27 km deep · 82 km away
4. 2.1102 km SSW of Nikolski, AlaskaSun, Jul 25, 9:19 AM AKDT · 1890 days ago · 36 km deep · 73 km away
5. 3.3179 km SW of Nikolski, AlaskaWed, Jul 28, 3:01 PM HADT · 1887 days ago · 35 km deep · 42 km away
6. 3.4181 km WSW of Nikolski, AlaskaWed, Jul 28, 3:02 PM HADT · 1887 days ago · 10 km deep · 48 km away
7. 2.051 km WSW of Nikolski, AlaskaThu, Jul 29, 5:12 PM AKDT · 1886 days ago · 13 km deep · 95 km away
8. 2.149 km SW of Nikolski, AlaskaSun, Aug 1, 12:00 AM AKDT · 1884 days ago · 13 km deep · 96 km away
9. 2.8130 km SSW of Nikolski, AlaskaSun, Aug 1, 1:42 AM AKDT · 1884 days ago · 28 km deep · 71 km away
10. 2.3139 km WSW of Nikolski, AlaskaSun, Aug 1, 5:57 AM HADT · 1884 days ago · 67 km deep · 47 km away
11. 2.775 km SW of Nikolski, AlaskaTue, Aug 3, 4:50 PM AKDT · 1881 days ago · 35 km deep · 69 km away
12. 2.2Fox Islands, Aleutian Islands, AlaskaTue, Aug 3, 5:10 PM AKDT · 1881 days ago · 20 km deep · 76 km away
13. 3.2185 km ESE of Atka, AlaskaThu, Aug 5, 7:47 AM HADT · 1879 days ago · 36 km deep · 89 km away
14. 3.1140 km SW of Nikolski, AlaskaFri, Aug 6, 3:19 AM HADT · 1879 days ago · 21 km deep · 5 km away
15. 3.0174 km E of Atka, AlaskaSat, Aug 7, 5:26 PM HADT · 1877 days ago · 35 km deep · 86 km away
16. 2.956 km SW of Nikolski, AlaskaTue, Aug 10, 2:32 PM AKDT · 1874 days ago · 34 km deep · 89 km away
17. 2.778 km SSW of Nikolski, AlaskaWed, Aug 11, 3:02 AM AKDT · 1874 days ago · 35 km deep · 72 km away
18. 1.9130 km SW of Nikolski, AlaskaWed, Aug 11, 12:53 PM HADT · 1873 days ago · 21 km deep · 15 km away
19. 1.985 km SSW of Nikolski, AlaskaThu, Aug 12, 6:11 PM AKDT · 1872 days ago · 30 km deep · 79 km away
20. 2.5183 km SW of Nikolski, AlaskaThu, Aug 12, 11:30 PM HADT · 1872 days ago · 37 km deep · 39 km away
21. 2.093 km WSW of Nikolski, AlaskaFri, Aug 13, 2:08 PM AKDT · 1871 days ago · 3 km deep · 65 km away
22. 1.996 km WSW of Nikolski, AlaskaFri, Aug 13, 3:31 PM AKDT · 1871 days ago · 5 km deep · 54 km away
23. 2.1191 km SW of Nikolski, AlaskaFri, Aug 13, 3:35 PM HADT · 1871 days ago · 38 km deep · 52 km away
24. 2.1112 km SW of Nikolski, AlaskaSat, Aug 14, 4:39 PM HADT · 1870 days ago · 33 km deep · 33 km away
25. 3.8175 km SW of Nikolski, AlaskaWed, Aug 18, 10:03 AM HADT · 1866 days ago · 35 km deep · 32 km away
26. 2.294 km WSW of Nikolski, AlaskaThu, Aug 19, 8:25 AM AKDT · 1865 days ago · 2 km deep · 70 km away
27. 2.097 km WSW of Nikolski, AlaskaThu, Aug 19, 2:51 PM AKDT · 1865 days ago · 5 km deep · 67 km away
28. 3.194 km SW of Nikolski, AlaskaThu, Aug 19, 10:11 PM AKDT · 1865 days ago · 10 km deep · 54 km away
29. 3.7157 km SW of Nikolski, AlaskaFri, Aug 20, 1:28 AM HADT · 1865 days ago · 25 km deep · 16 km away
30. 2.047 km SW of Nikolski, AlaskaFri, Aug 20, 3:29 AM AKDT · 1865 days ago · 5 km deep · 98 km away
31. 3.1166 km SW of Nikolski, AlaskaFri, Aug 20, 9:34 AM HADT · 1864 days ago · 37 km deep · 30 km away
32. 3.268 km SW of Nikolski, AlaskaSun, Aug 22, 11:39 AM AKDT · 1862 days ago · 87 km deep · 76 km away
33. 2.3127 km SW of Nikolski, AlaskaMon, Aug 23, 5:26 AM HADT · 1862 days ago · 33 km deep · 22 km away
34. 2.850 km SW of Nikolski, AlaskaThu, Aug 26, 2:54 AM AKDT · 1859 days ago · 10 km deep · 95 km away
35. 2.784 km SW of Nikolski, AlaskaThu, Aug 26, 8:18 AM AKDT · 1858 days ago · 25 km deep · 65 km away
36. 1.965 km SSW of Nikolski, AlaskaSun, Aug 29, 1:47 AM AKDT · 1856 days ago · 40 km deep · 83 km away
37. 3.0196 km SW of Nikolski, AlaskaMon, Aug 30, 10:02 AM HADT · 1854 days ago · 35 km deep · 58 km away
38. 2.4152 km WSW of Nikolski, AlaskaFri, Sep 3, 5:37 AM HADT · 1851 days ago · 60 km deep · 47 km away
39. 3.3112 km SW of Nikolski, AlaskaSat, Sep 4, 11:14 PM HADT · 1849 days ago · 35 km deep · 35 km away
40. 2.6139 km WSW of Nikolski, AlaskaTue, Sep 7, 3:08 PM HADT · 1846 days ago · 88 km deep · 70 km away
41. 3.367 km SW of Nikolski, AlaskaMon, Sep 13, 3:52 PM AKDT · 1840 days ago · 35 km deep · 79 km away
42. 3.195 km SSW of Nikolski, AlaskaThu, Sep 16, 10:39 PM AKDT · 1837 days ago · 7 km deep · 70 km away
43. 3.1113 km SW of Nikolski, AlaskaMon, Sep 20, 8:53 PM HADT · 1833 days ago · 35 km deep · 35 km away

Before

1. 3.8123 km SSW of Nikolski, AlaskaFri, Jul 23, 8:48 AM AKDT · 1892 days ago · 10 km deep · 74 km away
2. 2.9160 km SW of Nikolski, AlaskaFri, Jul 23, 1:14 AM HADT · 1893 days ago · 0 km deep · 18 km away
3. 2.1Fox Islands, Aleutian Islands, AlaskaTue, Jul 20, 6:37 AM AKDT · 1896 days ago · 25 km deep · 69 km away
4. 3.451 km SW of Nikolski, AlaskaMon, Jul 19, 8:28 AM AKDT · 1896 days ago · 17 km deep · 93 km away
5. 2.8114 km SW of Nikolski, AlaskaWed, Jul 14, 10:00 PM HADT · 1901 days ago · 26 km deep · 33 km away
6. 2.2178 km SW of Nikolski, AlaskaWed, Jul 14, 8:28 AM HADT · 1901 days ago · 24 km deep · 36 km away
7. 2.8112 km SSW of Nikolski, AlaskaTue, Jul 13, 10:59 PM AKDT · 1902 days ago · 35 km deep · 50 km away
8. 3.8106 km SW of Nikolski, AlaskaTue, Jul 13, 12:29 PM AKDT · 1902 days ago · 44 km deep · 39 km away
9. 3.088 km WSW of Nikolski, AlaskaSun, Jul 4, 3:08 PM AKDT · 1911 days ago · 144 km deep · 75 km away
10. 3.375 km SW of Nikolski, AlaskaThu, Jul 1, 10:04 PM AKDT · 1914 days ago · 34 km deep · 70 km away
11. 2.094 km SSW of Nikolski, AlaskaMon, Jun 28, 7:36 AM AKDT · 1918 days ago · 49 km deep · 81 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0219f1dp29. Read Mon, Sep 28, 2026, 3:40 AM UTC.