M1.9 earthquake 133 km WSW of Adak, Alaska

Magnitude

1.9 (ml), micro

Local time

Mon, Dec 13, 2021, 9:00 PM HAST

UTC

2021-12-14 07:00:12 UTC

Depth

13.3 km (8.3 mi), shallow

Epicenter

51.225° N, 178.259° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

13

After

1. 1.8146 km WSW of Adak, AlaskaMon, Dec 13, 10:05 PM HAST · 1750 days ago · 24 km deep · 29 km away
2. 1.769 km SW of Adak, AlaskaWed, Dec 15, 4:15 PM HAST · 1748 days ago · 43 km deep · 64 km away
3. 1.978 km WSW of Adak, AlaskaWed, Dec 15, 11:48 PM HAST · 1748 days ago · 73 km deep · 61 km away
4. 2.9108 km WSW of Adak, AlaskaFri, Dec 17, 8:02 PM HAST · 1746 days ago · 48 km deep · 27 km away
5. 3.2101 km SW of Adak, AlaskaSun, Dec 19, 3:07 PM HAST · 1744 days ago · 31 km deep · 51 km away
6. 1.7134 km WSW of Adak, AlaskaMon, Dec 20, 3:22 AM HAST · 1743 days ago · 28 km deep · 26 km away
7. 3.4132 km WSW of Adak, AlaskaMon, Dec 20, 4:32 AM HAST · 1743 days ago · 74 km deep · 35 km away
8. 1.8167 km W of Adak, AlaskaMon, Dec 20, 6:43 AM HAST · 1743 days ago · 11 km deep · 85 km away
9. 1.679 km WSW of Adak, AlaskaMon, Dec 20, 10:34 AM HAST · 1743 days ago · 56 km deep · 57 km away
10. 2.3202 km WSW of Adak, AlaskaTue, Dec 21, 12:34 PM HAST · 1742 days ago · 14 km deep · 80 km away
11. 1.777 km WSW of Adak, AlaskaTue, Dec 21, 3:43 PM HAST · 1742 days ago · 26 km deep · 56 km away
12. 2.6105 km W of Adak, AlaskaWed, Dec 22, 3:59 PM HAST · 1741 days ago · 90 km deep · 57 km away
13. 1.9128 km WSW of Adak, AlaskaWed, Dec 22, 5:26 PM HAST · 1741 days ago · 13 km deep · 45 km away
14. 1.5124 km WSW of Adak, AlaskaWed, Dec 22, 9:38 PM HAST · 1741 days ago · 24 km deep · 24 km away
15. 2.9212 km WSW of Adak, AlaskaWed, Dec 22, 10:02 PM HAST · 1741 days ago · 26 km deep · 84 km away
16. 1.8114 km WSW of Adak, AlaskaWed, Dec 22, 10:37 PM HAST · 1741 days ago · 50 km deep · 26 km away
17. 2.0130 km WSW of Adak, AlaskaThu, Dec 23, 2:51 AM HAST · 1740 days ago · 59 km deep · 26 km away
18. 1.8102 km SW of Adak, AlaskaThu, Dec 23, 3:17 AM HAST · 1740 days ago · 25 km deep · 40 km away
19. 1.5126 km W of Adak, AlaskaThu, Dec 23, 4:24 PM HAST · 1740 days ago · 10 km deep · 77 km away
20. 1.8134 km WSW of Adak, AlaskaSat, Dec 25, 3:45 AM HAST · 1738 days ago · 24 km deep · 16 km away
21. 1.550 km SW of Adak, AlaskaSat, Dec 25, 4:13 AM HAST · 1738 days ago · 16 km deep · 84 km away
22. 1.9101 km SW of Adak, AlaskaSat, Dec 25, 7:06 PM HAST · 1738 days ago · 29 km deep · 34 km away
23. 1.9127 km WSW of Adak, AlaskaMon, Dec 27, 10:28 AM HAST · 1736 days ago · 25 km deep · 23 km away
24. 2.074 km WSW of Adak, AlaskaMon, Dec 27, 10:43 AM HAST · 1736 days ago · 58 km deep · 59 km away
25. 1.852 km SW of Adak, AlaskaTue, Dec 28, 12:51 AM HAST · 1735 days ago · 35 km deep · 86 km away
26. 3.1155 km WSW of Adak, AlaskaWed, Dec 29, 1:28 AM HAST · 1734 days ago · 34 km deep · 28 km away
27. 1.9141 km SW of Adak, AlaskaWed, Dec 29, 3:55 AM HAST · 1734 days ago · 20 km deep · 16 km away
28. 2.777 km SSW of Adak, AlaskaFri, Dec 31, 11:45 AM HAST · 1732 days ago · 35 km deep · 86 km away
29. 2.190 km WSW of Adak, AlaskaFri, Dec 31, 1:10 PM HAST · 1732 days ago · 39 km deep · 44 km away
30. 2.8123 km SW of Adak, AlaskaSat, Jan 1, 8:26 AM HAST · 1731 days ago · 35 km deep · 24 km away
31. 3.5134 km SW of Adak, AlaskaSun, Jan 2, 7:54 PM HAST · 1730 days ago · 33 km deep · 1 km away
32. 1.963 km SW of Adak, AlaskaSun, Jan 2, 11:26 PM HAST · 1730 days ago · 46 km deep · 71 km away
33. 3.7121 km WSW of Adak, AlaskaTue, Jan 4, 5:23 PM HAST · 1728 days ago · 33 km deep · 26 km away
34. 1.981 km WSW of Adak, AlaskaWed, Jan 5, 4:05 AM HAST · 1727 days ago · 27 km deep · 53 km away
35. 3.2Andreanof Islands, Aleutian Islands, AlaskaWed, Jan 5, 9:53 AM HAST · 1727 days ago · 35 km deep · 87 km away
36. 1.961 km SSW of Adak, AlaskaWed, Jan 5, 4:38 PM HAST · 1727 days ago · 47 km deep · 83 km away
37. 1.980 km WSW of Adak, AlaskaThu, Jan 6, 9:13 PM HAST · 1726 days ago · 43 km deep · 53 km away
38. 1.8128 km WSW of Adak, AlaskaFri, Jan 7, 2:10 PM HAST · 1725 days ago · 10 km deep · 35 km away
39. 2.769 km SSW of Adak, AlaskaFri, Jan 7, 5:59 PM HAST · 1725 days ago · 35 km deep · 88 km away
40. 1.8130 km WSW of Adak, AlaskaSat, Jan 8, 12:49 AM HAST · 1724 days ago · 32 km deep · 5 km away
41. 3.498 km SW of Adak, AlaskaSun, Jan 9, 10:22 AM HAST · 1723 days ago · 35 km deep · 37 km away
42. 2.5202 km WSW of Adak, AlaskaMon, Jan 10, 12:56 PM HAST · 1722 days ago · 17 km deep · 73 km away
43. 5.1Andreanof Islands, Aleutian Islands, AlaskaWed, Jan 12, 7:47 PM HAST · 1720 days ago · 47 km deep · 62 km away · felt by 1
44. 3.4191 km WSW of Adak, AlaskaWed, Jan 12, 7:51 PM HAST · 1720 days ago · 33 km deep · 62 km away
45. 3.1192 km WSW of Adak, AlaskaWed, Jan 12, 7:58 PM HAST · 1720 days ago · 30 km deep · 61 km away
46. 2.3191 km WSW of Adak, AlaskaWed, Jan 12, 7:59 PM HAST · 1720 days ago · 22 km deep · 61 km away
47. 2.2192 km WSW of Adak, AlaskaWed, Jan 12, 8:08 PM HAST · 1720 days ago · 23 km deep · 63 km away
48. 2.1192 km WSW of Adak, AlaskaWed, Jan 12, 8:25 PM HAST · 1720 days ago · 22 km deep · 63 km away
49. 2.8198 km WSW of Adak, AlaskaWed, Jan 12, 9:23 PM HAST · 1720 days ago · 28 km deep · 69 km away
50. 2.1194 km WSW of Adak, AlaskaWed, Jan 12, 10:41 PM HAST · 1720 days ago · 16 km deep · 64 km away
51. 2.2198 km WSW of Adak, AlaskaWed, Jan 12, 11:00 PM HAST · 1720 days ago · 19 km deep · 68 km away
52. 2.9199 km WSW of Adak, AlaskaWed, Jan 12, 11:20 PM HAST · 1720 days ago · 22 km deep · 67 km away
53. 2.8Andreanof Isl., Aleutian Islands, AlaskaThu, Jan 13, 6:05 AM HAST · 1719 days ago · 10 km deep · 83 km away
54. 2.080 km SW of Adak, AlaskaThu, Jan 13, 12:53 PM HAST · 1719 days ago · 45 km deep · 54 km away
55. 1.5130 km WSW of Adak, AlaskaThu, Jan 13, 2:39 PM HAST · 1719 days ago · 7 km deep · 50 km away
56. 1.785 km SW of Adak, AlaskaThu, Jan 13, 5:47 PM HAST · 1719 days ago · 25 km deep · 52 km away
57. 1.7181 km W of Adak, AlaskaThu, Jan 13, 7:55 PM HAST · 1719 days ago · 8 km deep · 85 km away
58. 1.582 km SW of Adak, AlaskaFri, Jan 14, 4:31 AM HAST · 1718 days ago · 30 km deep · 54 km away
59. 3.0142 km WSW of Adak, AlaskaFri, Jan 14, 6:21 AM HAST · 1718 days ago · 84 km deep · 49 km away
60. 1.766 km SSW of Adak, AlaskaFri, Jan 14, 10:35 AM HAST · 1718 days ago · 34 km deep · 84 km away

The first 60 of 144.

Before

1. 4.089 km SW of Adak, AlaskaMon, Dec 13, 3:15 PM HAST · 1750 days ago · 35 km deep · 48 km away
2. 2.676 km SSW of Adak, AlaskaMon, Dec 13, 7:30 AM HAST · 1750 days ago · 35 km deep · 77 km away
3. 1.674 km SW of Adak, AlaskaSat, Dec 11, 6:47 PM HAST · 1752 days ago · 36 km deep · 62 km away
4. 1.668 km SW of Adak, AlaskaSat, Dec 11, 2:45 PM HAST · 1752 days ago · 36 km deep · 74 km away
5. 1.592 km SW of Adak, AlaskaSat, Dec 11, 5:27 AM HAST · 1752 days ago · 32 km deep · 48 km away
6. 1.538 km SW of Adak, AlaskaFri, Dec 10, 7:27 PM HAST · 1753 days ago · 26 km deep · 97 km away
7. 1.963 km SSW of Adak, AlaskaThu, Dec 9, 8:04 AM HAST · 1754 days ago · 35 km deep · 92 km away
8. 2.8143 km WSW of Adak, AlaskaWed, Dec 8, 6:31 PM HAST · 1755 days ago · 32 km deep · 14 km away
9. 2.076 km SW of Adak, AlaskaWed, Dec 8, 5:08 AM HAST · 1755 days ago · 31 km deep · 58 km away
10. 1.7143 km W of Adak, AlaskaTue, Dec 7, 12:36 PM HAST · 1756 days ago · 8 km deep · 57 km away
11. 2.7144 km WSW of Adak, AlaskaTue, Dec 7, 9:33 AM HAST · 1756 days ago · 11 km deep · 21 km away
12. 1.887 km WSW of Adak, AlaskaMon, Dec 6, 9:24 PM HAST · 1757 days ago · 36 km deep · 47 km away
13. 2.0132 km W of Adak, AlaskaSun, Dec 5, 11:15 PM HAST · 1758 days ago · 15 km deep · 57 km away
14. 2.8192 km WSW of Adak, AlaskaSun, Dec 5, 2:03 AM HAST · 1758 days ago · 65 km deep · 82 km away
15. 2.868 km WSW of Adak, AlaskaSat, Dec 4, 3:45 PM HAST · 1759 days ago · 35 km deep · 66 km away
16. 2.0136 km WSW of Adak, AlaskaSat, Dec 4, 1:28 PM HAST · 1759 days ago · 20 km deep · 8 km away
17. 1.666 km SW of Adak, AlaskaFri, Dec 3, 2:40 PM HAST · 1760 days ago · 40 km deep · 70 km away
18. 2.1130 km SW of Adak, AlaskaThu, Dec 2, 5:16 PM HAST · 1761 days ago · 26 km deep · 44 km away
19. 1.7133 km WSW of Adak, AlaskaThu, Dec 2, 1:41 PM HAST · 1761 days ago · 7 km deep · 36 km away
20. 1.984 km SW of Adak, AlaskaThu, Dec 2, 9:43 AM HAST · 1761 days ago · 53 km deep · 50 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021fzn6u0y. Read Mon, Sep 28, 2026, 9:46 PM UTC.