M2.8 earthquake 79 km ESE of Atka, Alaska

Magnitude

2.8 (ml), micro

Local time

Fri, Dec 3, 2021, 2:32 AM HAST

UTC

2021-12-03 12:32:39 UTC

Depth

32.1 km (20.0 mi), shallow

Epicenter

51.862° N, 173.176° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 7.7 km horizontally, 15.9 km in depth

Magnitude uncertainty

±0.12

Depth from

From location

Station coverage gap

205°, poorly surrounded by stations

Stations used

23

After

1. 4.373 km SSE of Atka, AlaskaThu, Dec 9, 9:12 PM HAST · 1753 days ago · 43 km deep · 61 km away
2. 2.07 km E of Atka, AlaskaThu, Dec 9, 9:40 PM HAST · 1753 days ago · 6 km deep · 73 km away
3. 1.742 km SW of Atka, AlaskaSat, Dec 11, 4:30 PM HAST · 1751 days ago · 54 km deep · 100 km away
4. 2.971 km ESE of Atka, AlaskaSun, Dec 12, 1:28 AM HAST · 1750 days ago · 40 km deep · 9 km away
5. 3.123 km S of Atka, AlaskaMon, Dec 13, 12:19 PM HAST · 1749 days ago · 178 km deep · 67 km away
6. 4.084 km SE of Atka, AlaskaMon, Dec 13, 2:05 PM HAST · 1749 days ago · 35 km deep · 20 km away
7. 3.1169 km SE of Atka, AlaskaFri, Dec 17, 12:36 AM HAST · 1746 days ago · 10 km deep · 91 km away
8. 2.250 km ESE of Atka, AlaskaFri, Dec 17, 9:32 PM HAST · 1745 days ago · 62 km deep · 29 km away
9. 3.3122 km ESE of Atka, AlaskaTue, Dec 21, 3:57 AM HAST · 1741 days ago · 34 km deep · 45 km away
10. 2.8155 km SE of Atka, AlaskaWed, Dec 22, 11:49 PM HAST · 1740 days ago · 28 km deep · 79 km away
11. 2.1Andreanof Islands, Aleutian Islands, AlaskaThu, Dec 23, 9:05 PM HAST · 1739 days ago · 17 km deep · 24 km away
12. 3.175 km SE of Atka, AlaskaSat, Dec 25, 5:51 AM HAST · 1737 days ago · 33 km deep · 11 km away
13. 2.961 km S of Atka, AlaskaTue, Dec 28, 2:56 AM HAST · 1734 days ago · 35 km deep · 80 km away
14. 2.191 km ESE of Atka, AlaskaTue, Dec 28, 5:43 AM HAST · 1734 days ago · 13 km deep · 25 km away
15. 1.927 km SW of Atka, AlaskaTue, Dec 28, 2:36 PM HAST · 1734 days ago · 65 km deep · 94 km away
16. 2.2119 km SSE of Atka, AlaskaTue, Dec 28, 7:47 PM HAST · 1734 days ago · 25 km deep · 85 km away
17. 1.959 km SSW of Atka, AlaskaWed, Dec 29, 7:21 PM HAST · 1733 days ago · 11 km deep · 97 km away
18. 2.4103 km S of Atka, AlaskaTue, Jan 4, 6:18 AM HAST · 1727 days ago · 18 km deep · 93 km away
19. 3.078 km S of Atka, AlaskaFri, Jan 7, 5:16 AM HAST · 1724 days ago · 26 km deep · 85 km away
20. 3.247 km S of Atka, AlaskaFri, Jan 7, 10:20 AM HAST · 1724 days ago · 64 km deep · 62 km away
21. 4.1142 km ESE of Atka, AlaskaSun, Jan 9, 8:39 AM HAST · 1722 days ago · 35 km deep · 70 km away
22. 4.275 km NE of Atka, AlaskaTue, Jan 11, 5:24 AM HAST · 1720 days ago · 187 km deep · 81 km away
23. 3.518 km NNE of Atka, AlaskaTue, Jan 11, 6:50 PM HAST · 1720 days ago · 146 km deep · 83 km away
24. 3.417 km WSW of Atka, AlaskaThu, Jan 13, 1:20 AM HAST · 1718 days ago · 178 km deep · 93 km away
25. 1.947 km SSW of Atka, AlaskaThu, Jan 13, 6:56 PM HAST · 1718 days ago · 40 km deep · 91 km away
26. 3.5112 km SE of Atka, AlaskaThu, Jan 13, 7:27 PM HAST · 1718 days ago · 41 km deep · 35 km away
27. 2.8128 km E of Atka, AlaskaThu, Jan 13, 7:38 PM HAST · 1718 days ago · 53 km deep · 78 km away
28. 3.160 km SE of Atka, AlaskaTue, Jan 18, 11:56 PM HAST · 1713 days ago · 6 km deep · 23 km away
29. 2.956 km ESE of Atka, AlaskaWed, Jan 19, 2:44 AM HAST · 1712 days ago · 14 km deep · 23 km away
30. 3.066 km SSE of Atka, AlaskaWed, Jan 19, 4:15 AM HAST · 1712 days ago · 35 km deep · 40 km away
31. 2.027 km S of Atka, AlaskaFri, Jan 21, 8:31 PM HAST · 1710 days ago · 91 km deep · 76 km away
32. 1.755 km SSW of Atka, AlaskaMon, Jan 24, 4:19 PM HAST · 1707 days ago · 39 km deep · 95 km away
33. 3.184 km ESE of Atka, AlaskaMon, Jan 24, 6:28 PM HAST · 1707 days ago · 35 km deep · 19 km away
34. 1.753 km S of Atka, AlaskaMon, Jan 24, 11:07 PM HAST · 1707 days ago · 4 km deep · 81 km away
35. 2.962 km ESE of Atka, AlaskaMon, Jan 24, 11:50 PM HAST · 1707 days ago · 35 km deep · 17 km away
36. 3.7Andreanof Islands, Aleutian Islands, AlaskaWed, Jan 26, 9:23 PM HAST · 1705 days ago · 42 km deep · 25 km away
37. 2.923 km SE of Atka, AlaskaFri, Jan 28, 10:10 AM HAST · 1703 days ago · 81 km deep · 58 km away
38. 3.2165 km SE of Atka, AlaskaMon, Jan 31, 9:55 PM HAST · 1700 days ago · 10 km deep · 96 km away

Before

1. 3.515 km NW of Atka, AlaskaWed, Dec 1, 8:48 AM HAST · 1761 days ago · 178 km deep · 93 km away
2. 3.568 km S of Atka, AlaskaMon, Nov 29, 2:13 AM HAST · 1763 days ago · 91 km deep · 72 km away
3. 3.346 km S of Atka, AlaskaSat, Nov 27, 7:39 PM HAST · 1765 days ago · 56 km deep · 67 km away
4. 2.097 km S of Atka, AlaskaFri, Nov 26, 7:32 AM HAST · 1766 days ago · 16 km deep · 78 km away
5. 1.915 km SSW of Atka, AlaskaSun, Nov 21, 8:11 PM HAST · 1771 days ago · 85 km deep · 78 km away
6. 1.824 km S of Atka, AlaskaThu, Nov 18, 8:12 PM HAST · 1774 days ago · 61 km deep · 67 km away
7. 1.951 km SSW of Atka, AlaskaThu, Nov 18, 1:35 PM HAST · 1774 days ago · 23 km deep · 95 km away
8. 1.952 km SE of Atka, AlaskaThu, Nov 18, 1:56 AM HAST · 1774 days ago · 55 km deep · 41 km away
9. 1.817 km SSW of Atka, AlaskaWed, Nov 17, 4:52 PM HAST · 1775 days ago · 76 km deep · 77 km away
10. 2.847 km S of Atka, AlaskaWed, Nov 17, 1:00 AM HAST · 1775 days ago · 68 km deep · 63 km away
11. 1.951 km ESE of Atka, AlaskaTue, Nov 16, 4:26 AM HAST · 1776 days ago · 63 km deep · 31 km away
12. 2.142 km ESE of Atka, AlaskaSat, Nov 13, 2:46 PM HAST · 1779 days ago · 15 km deep · 38 km away
13. 2.059 km SSW of Atka, AlaskaThu, Nov 11, 11:39 AM HAST · 1781 days ago · 17 km deep · 96 km away
14. 3.0102 km S of Atka, AlaskaMon, Nov 8, 5:04 PM HAST · 1784 days ago · 10 km deep · 97 km away
15. 3.4103 km SE of Atka, AlaskaSat, Nov 6, 7:38 PM HADT · 1786 days ago · 35 km deep · 34 km away
16. 2.8111 km SSE of Atka, AlaskaSat, Nov 6, 12:01 AM HADT · 1787 days ago · 35 km deep · 66 km away
17. 2.4112 km SSE of Atka, AlaskaWed, Nov 3, 5:50 AM HADT · 1789 days ago · 37 km deep · 79 km away

From the USGS Earthquake Hazards Program and its partner networks, event us7000g9ep (also filed as ak021fhjg4ag). Read Sun, Sep 27, 2026, 10:17 PM UTC.