M1.8 earthquake 24 km S of Atka, Alaska

Magnitude

1.8 (ml), micro

Local time

Thu, Nov 18, 2021, 8:12 PM HAST

UTC

2021-11-19 06:12:20 UTC

Depth

60.7 km (37.7 mi), shallow

Epicenter

51.984° N, 174.132° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

16

After

1. 1.789 km SW of Atka, AlaskaFri, Nov 19, 10:21 AM HAST · 1771 days ago · 31 km deep · 78 km away
2. 1.992 km SW of Atka, AlaskaFri, Nov 19, 9:29 PM HAST · 1771 days ago · 34 km deep · 79 km away
3. 1.915 km SSW of Atka, AlaskaSun, Nov 21, 8:11 PM HAST · 1769 days ago · 85 km deep · 13 km away
4. 2.097 km S of Atka, AlaskaFri, Nov 26, 7:32 AM HAST · 1765 days ago · 16 km deep · 74 km away
5. 1.878 km E of Adak, AlaskaFri, Nov 26, 9:28 PM HAST · 1764 days ago · 30 km deep · 97 km away
6. 3.346 km S of Atka, AlaskaSat, Nov 27, 7:39 PM HAST · 1763 days ago · 56 km deep · 23 km away
7. 2.646 km SW of Atka, AlaskaSat, Nov 27, 10:16 PM HAST · 1763 days ago · 14 km deep · 42 km away
8. 3.568 km S of Atka, AlaskaMon, Nov 29, 2:13 AM HAST · 1762 days ago · 91 km deep · 44 km away
9. 1.797 km ESE of Adak, AlaskaTue, Nov 30, 10:01 PM HAST · 1760 days ago · 13 km deep · 98 km away
10. 3.515 km NW of Atka, AlaskaWed, Dec 1, 8:48 AM HAST · 1759 days ago · 178 km deep · 38 km away
11. 3.9112 km SSW of Atka, AlaskaThu, Dec 2, 9:00 AM HAST · 1758 days ago · 26 km deep · 93 km away
12. 4.3107 km SSW of Atka, AlaskaThu, Dec 2, 11:42 AM HAST · 1758 days ago · 32 km deep · 89 km away
13. 2.6119 km SSW of Atka, AlaskaThu, Dec 2, 11:49 AM HAST · 1758 days ago · 24 km deep · 99 km away
14. 2.1113 km SSW of Atka, AlaskaThu, Dec 2, 11:54 AM HAST · 1758 days ago · 24 km deep · 94 km away
15. 3.6107 km SSW of Atka, AlaskaThu, Dec 2, 11:55 AM HAST · 1758 days ago · 12 km deep · 89 km away
16. 3.0111 km SSW of Atka, AlaskaThu, Dec 2, 1:03 PM HAST · 1758 days ago · 11 km deep · 92 km away
17. 2.879 km ESE of Atka, AlaskaFri, Dec 3, 2:32 AM HAST · 1758 days ago · 32 km deep · 67 km away
18. 2.956 km N of Atka, AlaskaFri, Dec 3, 5:35 PM HAST · 1757 days ago · 179 km deep · 80 km away
19. 4.373 km SSE of Atka, AlaskaThu, Dec 9, 9:12 PM HAST · 1751 days ago · 43 km deep · 49 km away
20. 2.07 km E of Atka, AlaskaThu, Dec 9, 9:40 PM HAST · 1751 days ago · 6 km deep · 24 km away
21. 2.096 km SW of Atka, AlaskaSat, Dec 11, 10:35 AM HAST · 1749 days ago · 25 km deep · 86 km away
22. 1.742 km SW of Atka, AlaskaSat, Dec 11, 4:30 PM HAST · 1749 days ago · 54 km deep · 35 km away
23. 2.971 km ESE of Atka, AlaskaSun, Dec 12, 1:28 AM HAST · 1749 days ago · 40 km deep · 61 km away
24. 3.123 km S of Atka, AlaskaMon, Dec 13, 12:19 PM HAST · 1747 days ago · 178 km deep · 1 km away
25. 4.084 km SE of Atka, AlaskaMon, Dec 13, 2:05 PM HAST · 1747 days ago · 35 km deep · 66 km away
26. 2.959 km SSW of Atka, AlaskaWed, Dec 15, 1:37 AM HAST · 1746 days ago · 35 km deep · 45 km away
27. 2.250 km ESE of Atka, AlaskaFri, Dec 17, 9:32 PM HAST · 1743 days ago · 62 km deep · 42 km away
28. 2.1Andreanof Islands, Aleutian Islands, AlaskaThu, Dec 23, 9:05 PM HAST · 1737 days ago · 17 km deep · 62 km away
29. 2.6103 km SSW of Atka, AlaskaFri, Dec 24, 1:17 PM HAST · 1736 days ago · 10 km deep · 82 km away
30. 2.182 km E of Adak, AlaskaSat, Dec 25, 5:10 AM HAST · 1736 days ago · 67 km deep · 90 km away
31. 3.175 km SE of Atka, AlaskaSat, Dec 25, 5:51 AM HAST · 1736 days ago · 33 km deep · 60 km away
32. 2.961 km S of Atka, AlaskaTue, Dec 28, 2:56 AM HAST · 1733 days ago · 35 km deep · 39 km away
33. 2.191 km ESE of Atka, AlaskaTue, Dec 28, 5:43 AM HAST · 1733 days ago · 13 km deep · 85 km away
34. 1.927 km SW of Atka, AlaskaTue, Dec 28, 2:36 PM HAST · 1732 days ago · 65 km deep · 27 km away
35. 2.2119 km SSE of Atka, AlaskaTue, Dec 28, 7:47 PM HAST · 1732 days ago · 25 km deep · 96 km away
36. 3.536 km WNW of Atka, AlaskaWed, Dec 29, 5:20 AM HAST · 1732 days ago · 188 km deep · 53 km away
37. 1.959 km SSW of Atka, AlaskaWed, Dec 29, 7:21 PM HAST · 1731 days ago · 11 km deep · 43 km away
38. 2.799 km SW of Atka, AlaskaMon, Jan 3, 11:25 PM HAST · 1726 days ago · 35 km deep · 87 km away
39. 2.4103 km S of Atka, AlaskaTue, Jan 4, 6:18 AM HAST · 1726 days ago · 18 km deep · 79 km away
40. 3.078 km S of Atka, AlaskaFri, Jan 7, 5:16 AM HAST · 1723 days ago · 26 km deep · 56 km away
41. 2.555 km N of Atka, AlaskaFri, Jan 7, 7:41 AM HAST · 1723 days ago · 130 km deep · 78 km away
42. 3.247 km S of Atka, AlaskaFri, Jan 7, 10:20 AM HAST · 1722 days ago · 64 km deep · 23 km away
43. 3.175 km SW of Atka, AlaskaFri, Jan 7, 9:31 PM HAST · 1722 days ago · 35 km deep · 63 km away
44. 1.963 km SW of Atka, AlaskaSat, Jan 8, 4:10 PM HAST · 1721 days ago · 26 km deep · 53 km away
45. 4.275 km NE of Atka, AlaskaTue, Jan 11, 5:24 AM HAST · 1719 days ago · 187 km deep · 88 km away
46. 3.518 km NNE of Atka, AlaskaTue, Jan 11, 6:50 PM HAST · 1718 days ago · 146 km deep · 41 km away
47. 3.417 km WSW of Atka, AlaskaThu, Jan 13, 1:20 AM HAST · 1717 days ago · 178 km deep · 29 km away
48. 1.947 km SSW of Atka, AlaskaThu, Jan 13, 6:56 PM HAST · 1716 days ago · 40 km deep · 31 km away
49. 3.5112 km SE of Atka, AlaskaThu, Jan 13, 7:27 PM HAST · 1716 days ago · 41 km deep · 96 km away
50. 1.954 km SSW of Atka, AlaskaSun, Jan 16, 8:49 PM HAST · 1713 days ago · 26 km deep · 42 km away
51. 1.885 km E of Adak, AlaskaMon, Jan 17, 2:10 AM HAST · 1713 days ago · 76 km deep · 88 km away
52. 1.773 km E of Adak, AlaskaMon, Jan 17, 12:55 PM HAST · 1712 days ago · 24 km deep · 99 km away

Before

1. 1.951 km SSW of Atka, AlaskaThu, Nov 18, 1:35 PM HAST · 1772 days ago · 23 km deep · 36 km away
2. 1.952 km SE of Atka, AlaskaThu, Nov 18, 1:56 AM HAST · 1773 days ago · 55 km deep · 32 km away
3. 1.596 km ESE of Adak, AlaskaWed, Nov 17, 10:43 PM HAST · 1773 days ago · 22 km deep · 95 km away
4. 1.817 km SSW of Atka, AlaskaWed, Nov 17, 4:52 PM HAST · 1773 days ago · 76 km deep · 11 km away
5. 2.847 km S of Atka, AlaskaWed, Nov 17, 1:00 AM HAST · 1774 days ago · 68 km deep · 23 km away
6. 2.087 km SW of Atka, AlaskaWed, Nov 17, 12:07 AM HAST · 1774 days ago · 15 km deep · 74 km away
7. 1.657 km WSW of Atka, AlaskaTue, Nov 16, 8:58 PM HAST · 1774 days ago · 70 km deep · 56 km away
8. 1.951 km ESE of Atka, AlaskaTue, Nov 16, 4:26 AM HAST · 1775 days ago · 63 km deep · 46 km away
9. 2.949 km SW of Atka, AlaskaTue, Nov 16, 2:38 AM HAST · 1775 days ago · 72 km deep · 39 km away
10. 1.773 km WSW of Atka, AlaskaMon, Nov 15, 10:08 PM HAST · 1775 days ago · 74 km deep · 75 km away
11. 1.771 km SW of Atka, AlaskaSun, Nov 14, 9:44 PM HAST · 1776 days ago · 35 km deep · 61 km away
12. 4.058 km NNW of Atka, AlaskaSun, Nov 14, 11:47 AM HAST · 1776 days ago · 211 km deep · 82 km away
13. 2.142 km ESE of Atka, AlaskaSat, Nov 13, 2:46 PM HAST · 1777 days ago · 15 km deep · 37 km away
14. 2.034 km WSW of Atka, AlaskaFri, Nov 12, 8:19 PM HAST · 1778 days ago · 88 km deep · 39 km away
15. 1.757 km WSW of Atka, AlaskaFri, Nov 12, 5:19 PM HAST · 1778 days ago · 75 km deep · 60 km away
16. 2.2122 km S of Atka, AlaskaThu, Nov 11, 4:15 PM HAST · 1779 days ago · 30 km deep · 99 km away
17. 2.059 km SSW of Atka, AlaskaThu, Nov 11, 11:39 AM HAST · 1779 days ago · 17 km deep · 43 km away
18. 3.0102 km S of Atka, AlaskaMon, Nov 8, 5:04 PM HAST · 1782 days ago · 10 km deep · 79 km away
19. 2.061 km SW of Atka, AlaskaMon, Nov 8, 5:49 AM HAST · 1783 days ago · 63 km deep · 53 km away
20. 3.4103 km SE of Atka, AlaskaSat, Nov 6, 7:38 PM HADT · 1784 days ago · 35 km deep · 85 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021eua8bbe. Read Sat, Sep 26, 2026, 5:38 AM UTC.