M2.1 earthquake 186 km SSW of Adak, Alaska

Magnitude

2.1 (ml), micro

Local time

Sat, Aug 21, 2021, 5:40 AM HADT

UTC

2021-08-21 14:40:39 UTC

Depth

26.2 km (16.3 mi), shallow

Epicenter

50.333° N, 177.695° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

12

After

1. 1.5121 km SW of Adak, AlaskaMon, Aug 23, 5:48 PM HADT · 1861 days ago · 25 km deep · 97 km away
2. 3.2122 km SW of Adak, AlaskaSat, Aug 28, 1:14 AM HADT · 1856 days ago · 27 km deep · 95 km away
3. 2.0183 km S of Adak, AlaskaMon, Aug 30, 7:15 AM HADT · 1854 days ago · 25 km deep · 45 km away
4. 1.8147 km S of Adak, AlaskaThu, Sep 2, 2:56 AM HADT · 1851 days ago · 25 km deep · 96 km away
5. 2.8239 km SSW of Adak, AlaskaFri, Sep 3, 12:16 AM HADT · 1850 days ago · 10 km deep · 62 km away
6. 1.7111 km S of Adak, AlaskaTue, Sep 7, 4:40 AM HADT · 1846 days ago · 35 km deep · 83 km away
7. 1.6124 km SW of Adak, AlaskaTue, Sep 7, 6:53 AM HADT · 1846 days ago · 26 km deep · 95 km away
8. 2.9126 km SW of Adak, AlaskaThu, Sep 9, 2:23 PM HADT · 1844 days ago · 35 km deep · 94 km away
9. 2.1147 km SW of Adak, AlaskaThu, Sep 9, 2:43 PM HADT · 1844 days ago · 26 km deep · 84 km away
10. 3.4204 km SSW of Adak, AlaskaWed, Sep 15, 7:41 AM HADT · 1838 days ago · 10 km deep · 23 km away
11. 3.1Andreanof Islands, Aleutian Islands, AlaskaSat, Sep 25, 4:39 AM HADT · 1828 days ago · 10 km deep · 100 km away
12. 2.1110 km SW of Adak, AlaskaSat, Sep 25, 5:21 PM HADT · 1828 days ago · 26 km deep · 97 km away
13. 3.9177 km SSW of Adak, AlaskaMon, Sep 27, 1:03 PM HADT · 1826 days ago · 10 km deep · 29 km away
14. 2.3179 km SSW of Adak, AlaskaWed, Sep 29, 12:04 AM HADT · 1824 days ago · 25 km deep · 27 km away
15. 3.1140 km SW of Adak, AlaskaTue, Oct 5, 5:42 AM HADT · 1818 days ago · 28 km deep · 95 km away
16. 2.3130 km SW of Adak, AlaskaTue, Oct 5, 12:57 PM HADT · 1818 days ago · 28 km deep · 88 km away
17. 1.8112 km SW of Adak, AlaskaWed, Oct 6, 8:53 PM HADT · 1817 days ago · 18 km deep · 83 km away
18. 1.6111 km SW of Adak, AlaskaWed, Oct 6, 8:56 PM HADT · 1817 days ago · 26 km deep · 87 km away
19. 1.6111 km SW of Adak, AlaskaWed, Oct 6, 10:02 PM HADT · 1817 days ago · 15 km deep · 91 km away
20. 1.8121 km SW of Adak, AlaskaWed, Oct 6, 11:19 PM HADT · 1816 days ago · 21 km deep · 99 km away
21. 3.7187 km S of Adak, AlaskaWed, Oct 6, 11:24 PM HADT · 1816 days ago · 10 km deep · 97 km away
22. 3.2157 km SW of Adak, AlaskaThu, Oct 14, 4:17 AM HADT · 1809 days ago · 33 km deep · 58 km away
23. 1.8Andreanof Islands, Aleutian Islands, AlaskaFri, Oct 15, 3:14 AM HADT · 1808 days ago · 26 km deep · 63 km away

Before

1. 3.4200 km SSW of Adak, AlaskaThu, Aug 19, 6:03 PM HADT · 1865 days ago · 10 km deep · 39 km away
2. 1.7209 km S of Adak, AlaskaThu, Aug 19, 4:05 PM HADT · 1865 days ago · 21 km deep · 58 km away
3. 1.9241 km S of Adak, AlaskaThu, Aug 19, 11:03 AM HADT · 1865 days ago · 12 km deep · 79 km away
4. 1.5137 km SSW of Adak, AlaskaThu, Aug 19, 2:42 AM HADT · 1865 days ago · 26 km deep · 56 km away
5. 2.1128 km SW of Adak, AlaskaTue, Aug 17, 2:13 PM HADT · 1867 days ago · 26 km deep · 96 km away
6. 1.7102 km SSW of Adak, AlaskaSun, Aug 15, 9:45 PM HADT · 1869 days ago · 47 km deep · 85 km away
7. 2.6101 km SSW of Adak, AlaskaSun, Aug 15, 6:31 PM HADT · 1869 days ago · 24 km deep · 85 km away
8. 1.8134 km SW of Adak, AlaskaSat, Aug 14, 7:50 PM HADT · 1870 days ago · 26 km deep · 94 km away
9. 1.7134 km SW of Adak, AlaskaSat, Aug 14, 7:49 PM HADT · 1870 days ago · 18 km deep · 87 km away
10. 1.7136 km SW of Adak, AlaskaSat, Aug 14, 7:45 PM HADT · 1870 days ago · 26 km deep · 94 km away
11. 3.2198 km S of Adak, AlaskaSat, Aug 14, 10:57 AM HADT · 1870 days ago · 10 km deep · 66 km away
12. 1.8131 km SW of Adak, AlaskaThu, Aug 5, 9:25 AM HADT · 1879 days ago · 26 km deep · 98 km away
13. 2.0137 km SW of Adak, AlaskaThu, Aug 5, 8:52 AM HADT · 1879 days ago · 26 km deep · 92 km away
14. 2.1226 km SSW of Adak, AlaskaThu, Aug 5, 3:57 AM HADT · 1879 days ago · 20 km deep · 40 km away
15. 2.5168 km SSW of Adak, AlaskaSun, Aug 1, 12:15 PM HADT · 1883 days ago · 10 km deep · 28 km away
16. 1.897 km S of Adak, AlaskaSat, Jul 31, 10:15 PM HADT · 1884 days ago · 26 km deep · 99 km away
17. 1.9211 km SSW of Adak, AlaskaFri, Jul 30, 2:59 AM HADT · 1885 days ago · 26 km deep · 38 km away
18. 1.9176 km SSW of Adak, AlaskaThu, Jul 29, 2:35 PM HADT · 1886 days ago · 26 km deep · 31 km away
19. 1.8164 km S of Adak, AlaskaTue, Jul 27, 2:12 AM HADT · 1888 days ago · 17 km deep · 61 km away
20. 2.7141 km SW of Adak, AlaskaMon, Jul 26, 9:44 PM HADT · 1889 days ago · 35 km deep · 99 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021apksl81. Read Sun, Sep 27, 2026, 7:02 PM UTC.