M1.7 earthquake 48 km SSW of Unalaska, Alaska

Magnitude

1.7 (ml), micro

Local time

Sun, Dec 19, 2021, 5:15 PM AKST

UTC

2021-12-20 02:15:03 UTC

Depth

65.0 km (40.4 mi), shallow

Epicenter

53.499° N, 166.921° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

16

• Unalaska, AlaskaPopulation 4,491. Forecast49 kmSSW

After

1. 1.845 km ESE of Unalaska, AlaskaSun, Dec 19, 9:08 PM AKST · 1743 days ago · 66 km deep · 71 km away
2. 2.240 km SE of Unalaska, AlaskaMon, Dec 20, 11:40 AM AKST · 1742 days ago · 63 km deep · 55 km away
3. 2.158 km SE of Unalaska, AlaskaTue, Dec 21, 12:50 AM AKST · 1742 days ago · 33 km deep · 68 km away
4. 1.516 km WSW of Akutan, AlaskaTue, Dec 21, 6:13 PM AKST · 1741 days ago · 16 km deep · 89 km away
5. 1.934 km SSE of Akutan, AlaskaWed, Dec 22, 1:10 PM AKST · 1740 days ago · 59 km deep · 94 km away
6. 1.783 km WSW of Unalaska, AlaskaThu, Dec 23, 7:25 AM AKST · 1739 days ago · 7 km deep · 49 km away
7. 2.1109 km E of Nikolski, AlaskaSat, Dec 25, 5:06 AM AKST · 1738 days ago · 17 km deep · 67 km away
8. 2.532 km SSW of Unalaska, AlaskaSat, Dec 25, 9:20 PM AKST · 1737 days ago · 78 km deep · 16 km away
9. 1.774 km SE of Unalaska, AlaskaMon, Dec 27, 5:32 PM AKST · 1735 days ago · 13 km deep · 83 km away
10. 1.991 km E of Nikolski, AlaskaMon, Dec 27, 8:15 PM AKST · 1735 days ago · 25 km deep · 68 km away
11. 1.9113 km S of Unalaska, AlaskaTue, Dec 28, 5:45 PM AKST · 1734 days ago · 3 km deep · 70 km away
12. 2.285 km SSW of Unalaska, AlaskaFri, Dec 31, 8:21 PM AKST · 1731 days ago · 17 km deep · 39 km away
13. 1.755 km SW of Unalaska, AlaskaSat, Jan 1, 12:48 PM AKST · 1730 days ago · 13 km deep · 17 km away
14. 2.966 km SSW of Unalaska, AlaskaSat, Jan 1, 8:03 PM AKST · 1730 days ago · 4 km deep · 18 km away
15. 1.875 km S of Unalaska, AlaskaSat, Jan 1, 8:23 PM AKST · 1730 days ago · 26 km deep · 48 km away
16. 1.642 km SW of Unalaska, AlaskaSun, Jan 2, 2:10 AM AKST · 1730 days ago · 15 km deep · 17 km away
17. 1.9Fox Islands, Aleutian Islands, AlaskaSun, Jan 2, 3:14 AM AKST · 1730 days ago · 51 km deep · 38 km away
18. 1.656 km SW of Unalaska, AlaskaSun, Jan 2, 6:05 PM AKST · 1729 days ago · 17 km deep · 19 km away
19. 4.261 km SE of Unalaska, AlaskaMon, Jan 3, 2:58 AM AKST · 1729 days ago · 44 km deep · 69 km away · felt by 5
20. 3.729 km E of Unalaska, AlaskaMon, Jan 3, 5:23 AM AKST · 1729 days ago · 37 km deep · 69 km away
21. 1.964 km S of Akutan, AlaskaMon, Jan 3, 7:16 AM AKST · 1728 days ago · 41 km deep · 86 km away
22. 3.583 km S of Unalaska, AlaskaMon, Jan 3, 9:12 PM AKST · 1728 days ago · 29 km deep · 43 km away
23. 1.938 km S of Unalaska, AlaskaTue, Jan 4, 6:55 AM AKST · 1727 days ago · 71 km deep · 29 km away
24. 2.169 km SSW of Unalaska, AlaskaWed, Jan 5, 1:45 AM AKST · 1727 days ago · 21 km deep · 25 km away
25. 3.287 km S of Unalaska, AlaskaWed, Jan 5, 5:38 AM AKST · 1727 days ago · 35 km deep · 45 km away
26. 3.5Fox Islands, Aleutian Islands, AlaskaWed, Jan 5, 6:20 AM AKST · 1726 days ago · 35 km deep · 41 km away
27. 3.391 km E of Nikolski, AlaskaWed, Jan 5, 4:34 PM AKST · 1726 days ago · 35 km deep · 62 km away
28. 3.658 km ESE of Unalaska, AlaskaWed, Jan 5, 11:53 PM AKST · 1726 days ago · 49 km deep · 76 km away
29. 2.075 km SSW of Unalaska, AlaskaThu, Jan 6, 4:01 AM AKST · 1726 days ago · 38 km deep · 34 km away
30. 1.927 km SSW of Unalaska, AlaskaThu, Jan 6, 4:58 AM AKST · 1726 days ago · 84 km deep · 22 km away
31. 1.931 km WSW of Unalaska, AlaskaThu, Jan 6, 5:48 AM AKST · 1726 days ago · 83 km deep · 29 km away
32. 1.732 km S of Akutan, AlaskaFri, Jan 7, 4:19 PM AKST · 1724 days ago · 74 km deep · 79 km away
33. 3.072 km S of Unalaska, AlaskaFri, Jan 7, 9:13 PM AKST · 1724 days ago · 35 km deep · 42 km away
34. 2.491 km ENE of Nikolski, AlaskaSun, Jan 9, 2:30 AM AKST · 1723 days ago · 66 km deep · 54 km away
35. 2.188 km S of Unalaska, AlaskaSun, Jan 9, 8:16 AM AKST · 1722 days ago · 26 km deep · 49 km away
36. 1.774 km WSW of Unalaska, AlaskaSun, Jan 9, 3:28 PM AKST · 1722 days ago · 13 km deep · 40 km away
37. 1.846 km WSW of Unalaska, AlaskaSun, Jan 9, 8:04 PM AKST · 1722 days ago · 11 km deep · 23 km away
38. 3.041 km WSW of Unalaska, AlaskaSun, Jan 9, 10:10 PM AKST · 1722 days ago · 83 km deep · 23 km away
39. 3.057 km SW of Unalaska, AlaskaMon, Jan 10, 9:50 AM AKST · 1721 days ago · 35 km deep · 10 km away
40. 4.058 km SSE of Unalaska, AlaskaMon, Jan 10, 11:37 AM AKST · 1721 days ago · 43 km deep · 55 km away
41. 2.678 km S of Unalaska, AlaskaMon, Jan 10, 1:09 PM AKST · 1721 days ago · 33 km deep · 38 km away
42. 1.739 km SSW of Unalaska, AlaskaTue, Jan 11, 1:00 PM AKST · 1720 days ago · 74 km deep · 16 km away
43. 2.119 km SE of Unalaska, AlaskaTue, Jan 11, 3:17 PM AKST · 1720 days ago · 77 km deep · 48 km away
44. 2.1127 km S of Unalaska, AlaskaWed, Jan 12, 1:19 AM AKST · 1720 days ago · 25 km deep · 84 km away
45. 1.615 km WSW of Dutch Harbor, AlaskaWed, Jan 12, 12:34 PM AKST · 1719 days ago · 6 km deep · 41 km away
46. 3.218 km W of Dutch Harbor, AlaskaWed, Jan 12, 1:24 PM AKST · 1719 days ago · 9 km deep · 41 km away
47. 1.720 km W of Dutch Harbor, AlaskaWed, Jan 12, 1:30 PM AKST · 1719 days ago · 12 km deep · 40 km away
48. 2.619 km W of Dutch Harbor, AlaskaWed, Jan 12, 4:53 PM AKST · 1719 days ago · 10 km deep · 40 km away
49. 2.928 km SSE of Unalaska, AlaskaThu, Jan 13, 1:55 AM AKST · 1719 days ago · 72 km deep · 39 km away
50. 2.926 km E of Unalaska, AlaskaThu, Jan 13, 4:12 PM AKST · 1718 days ago · 80 km deep · 65 km away
51. 3.880 km SSW of Unalaska, AlaskaFri, Jan 14, 7:49 PM AKST · 1717 days ago · 39 km deep · 38 km away
52. 1.777 km S of Akutan, AlaskaSat, Jan 15, 5:57 AM AKST · 1717 days ago · 21 km deep · 90 km away
53. 1.549 km SSE of Unalaska, AlaskaSat, Jan 15, 7:02 AM AKST · 1716 days ago · 42 km deep · 47 km away
54. 3.0125 km S of Unalaska, AlaskaSat, Jan 15, 9:15 PM AKST · 1716 days ago · 15 km deep · 82 km away
55. 3.478 km ESE of Nikolski, AlaskaSun, Jan 16, 10:47 AM AKST · 1715 days ago · 35 km deep · 94 km away
56. 2.695 km E of Nikolski, AlaskaSun, Jan 16, 7:22 PM AKST · 1715 days ago · 35 km deep · 82 km away
57. 2.5137 km ESE of Nikolski, AlaskaMon, Jan 17, 2:36 AM AKST · 1715 days ago · 10 km deep · 98 km away
58. 1.771 km SSE of Akutan, AlaskaMon, Jan 17, 12:17 PM AKST · 1714 days ago · 36 km deep · 92 km away
59. 1.574 km SW of Unalaska, AlaskaTue, Jan 18, 8:26 PM AKST · 1713 days ago · 13 km deep · 33 km away
60. 2.683 km SW of Unalaska, AlaskaWed, Jan 19, 6:38 AM AKST · 1712 days ago · 79 km deep · 37 km away

The first 60 of 198.

Before

1. 1.641 km ESE of Unalaska, AlaskaSun, Dec 19, 4:32 PM AKST · 1743 days ago · 28 km deep · 71 km away
2. 1.874 km E of Nikolski, AlaskaSat, Dec 18, 12:45 AM AKST · 1745 days ago · 40 km deep · 79 km away
3. 3.2116 km S of Unalaska, AlaskaThu, Dec 16, 1:40 AM AKST · 1747 days ago · 2 km deep · 75 km away
4. 1.9134 km S of Unalaska, AlaskaWed, Dec 15, 4:18 PM AKST · 1747 days ago · 10 km deep · 94 km away
5. 2.0134 km S of Unalaska, AlaskaWed, Dec 15, 4:13 PM AKST · 1747 days ago · 14 km deep · 94 km away
6. 1.8117 km SSW of Unalaska, AlaskaTue, Dec 14, 9:26 AM AKST · 1748 days ago · 17 km deep · 74 km away
7. 1.964 km SW of Unalaska, AlaskaMon, Dec 13, 5:06 PM AKST · 1749 days ago · 75 km deep · 22 km away
8. 2.173 km SE of Unalaska, AlaskaMon, Dec 13, 2:07 PM AKST · 1749 days ago · 21 km deep · 83 km away
9. 2.019 km WSW of Akutan, AlaskaSun, Dec 12, 9:37 PM AKST · 1750 days ago · 90 km deep · 84 km away
10. 2.268 km SE of Unalaska, AlaskaSat, Dec 11, 1:33 PM AKST · 1751 days ago · 29 km deep · 70 km away
11. 1.877 km SE of Unalaska, AlaskaWed, Dec 8, 4:23 PM AKST · 1754 days ago · 20 km deep · 79 km away
12. 2.066 km SE of Unalaska, AlaskaSun, Dec 5, 8:38 PM AKST · 1757 days ago · 39 km deep · 76 km away
13. 1.654 km SW of Unalaska, AlaskaSat, Dec 4, 9:04 PM AKST · 1758 days ago · 13 km deep · 14 km away
14. 1.987 km ENE of Nikolski, AlaskaSat, Dec 4, 4:19 AM AKST · 1759 days ago · 56 km deep · 58 km away
15. 2.770 km SSE of Akutan, AlaskaFri, Dec 3, 11:46 PM AKST · 1759 days ago · 29 km deep · 98 km away
16. 2.7107 km E of Nikolski, AlaskaThu, Dec 2, 2:05 PM AKST · 1760 days ago · 35 km deep · 74 km away
17. 1.673 km S of Akutan, AlaskaWed, Dec 1, 10:06 PM AKST · 1761 days ago · 17 km deep · 86 km away
18. 1.776 km SW of Unalaska, AlaskaWed, Dec 1, 4:07 AM AKST · 1762 days ago · 11 km deep · 31 km away
19. 1.985 km ENE of Nikolski, AlaskaTue, Nov 30, 1:50 AM AKST · 1763 days ago · 53 km deep · 61 km away
20. 2.2103 km E of Nikolski, AlaskaMon, Nov 29, 6:23 PM AKST · 1763 days ago · 26 km deep · 71 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021g9hiy2f. Read Mon, Sep 28, 2026, 2:39 AM UTC.