M1.8 earthquake 92 km SSW of Unalaska, Alaska

Magnitude

1.8 (ml), micro

Local time

Sat, Nov 20, 2021, 3:22 AM AKST

UTC

2021-11-20 12:22:11 UTC

Depth

45.6 km (28.3 mi), shallow

Epicenter

53.168° N, 167.257° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

18

• Unalaska, AlaskaPopulation 4,491. Forecast92 kmSSW

After

1. 2.172 km E of Nikolski, AlaskaSun, Nov 21, 3:56 PM AKST · 1766 days ago · 35 km deep · 44 km away
2. 3.828 km E of Nikolski, AlaskaSun, Nov 21, 10:05 PM AKST · 1766 days ago · 66 km deep · 85 km away
3. 2.983 km SSW of Unalaska, AlaskaTue, Nov 23, 1:42 AM AKST · 1765 days ago · 35 km deep · 8 km away
4. 1.641 km SW of Unalaska, AlaskaWed, Nov 24, 12:46 AM AKST · 1764 days ago · 68 km deep · 51 km away
5. 2.551 km ESE of Nikolski, AlaskaThu, Nov 25, 3:20 AM AKST · 1763 days ago · 35 km deep · 74 km away
6. 2.270 km SSE of Unalaska, AlaskaThu, Nov 25, 2:20 PM AKST · 1762 days ago · 37 km deep · 72 km away
7. 1.656 km SW of Unalaska, AlaskaThu, Nov 25, 4:49 PM AKST · 1762 days ago · 71 km deep · 36 km away
8. 2.032 km SE of Nikolski, AlaskaFri, Nov 26, 10:53 PM AKST · 1761 days ago · 31 km deep · 92 km away
9. 2.0140 km S of Unalaska, AlaskaSat, Nov 27, 1:51 PM AKST · 1760 days ago · 26 km deep · 87 km away
10. 2.988 km S of Unalaska, AlaskaSat, Nov 27, 10:47 PM AKST · 1760 days ago · 61 km deep · 54 km away
11. 2.197 km E of Nikolski, AlaskaMon, Nov 29, 5:06 AM AKST · 1759 days ago · 26 km deep · 26 km away
12. 2.2103 km E of Nikolski, AlaskaMon, Nov 29, 6:23 PM AKST · 1758 days ago · 26 km deep · 29 km away
13. 1.985 km ENE of Nikolski, AlaskaTue, Nov 30, 1:50 AM AKST · 1758 days ago · 53 km deep · 25 km away
14. 1.776 km SW of Unalaska, AlaskaWed, Dec 1, 4:07 AM AKST · 1757 days ago · 11 km deep · 25 km away
15. 2.154 km ESE of Nikolski, AlaskaWed, Dec 1, 4:30 AM AKST · 1757 days ago · 22 km deep · 78 km away
16. 2.7107 km E of Nikolski, AlaskaThu, Dec 2, 2:05 PM AKST · 1755 days ago · 35 km deep · 34 km away
17. 1.987 km ENE of Nikolski, AlaskaSat, Dec 4, 4:19 AM AKST · 1754 days ago · 56 km deep · 25 km away
18. 1.654 km SW of Unalaska, AlaskaSat, Dec 4, 9:04 PM AKST · 1753 days ago · 13 km deep · 41 km away
19. 2.268 km SE of Unalaska, AlaskaSat, Dec 11, 1:33 PM AKST · 1746 days ago · 29 km deep · 95 km away
20. 1.964 km SW of Unalaska, AlaskaMon, Dec 13, 5:06 PM AKST · 1744 days ago · 75 km deep · 35 km away
21. 1.8117 km SSW of Unalaska, AlaskaTue, Dec 14, 9:26 AM AKST · 1743 days ago · 17 km deep · 44 km away
22. 2.950 km SE of Nikolski, AlaskaWed, Dec 15, 3:17 PM AKST · 1742 days ago · 35 km deep · 87 km away
23. 2.0134 km S of Unalaska, AlaskaWed, Dec 15, 4:13 PM AKST · 1742 days ago · 14 km deep · 68 km away
24. 1.9134 km S of Unalaska, AlaskaWed, Dec 15, 4:18 PM AKST · 1742 days ago · 10 km deep · 67 km away
25. 3.2116 km S of Unalaska, AlaskaThu, Dec 16, 1:40 AM AKST · 1742 days ago · 2 km deep · 50 km away
26. 2.361 km ESE of Nikolski, AlaskaFri, Dec 17, 5:36 PM AKST · 1740 days ago · 19 km deep · 65 km away
27. 1.874 km E of Nikolski, AlaskaSat, Dec 18, 12:45 AM AKST · 1740 days ago · 40 km deep · 38 km away
28. 1.748 km SSW of Unalaska, AlaskaSun, Dec 19, 5:15 PM AKST · 1738 days ago · 65 km deep · 43 km away
29. 2.240 km SE of Unalaska, AlaskaMon, Dec 20, 11:40 AM AKST · 1737 days ago · 63 km deep · 91 km away
30. 2.158 km SE of Unalaska, AlaskaTue, Dec 21, 12:50 AM AKST · 1737 days ago · 33 km deep · 99 km away
31. 4.054 km ESE of Nikolski, AlaskaTue, Dec 21, 7:59 AM AKST · 1737 days ago · 35 km deep · 80 km away · felt by 1
32. 4.353 km ESE of Nikolski, AlaskaTue, Dec 21, 8:02 AM AKST · 1737 days ago · 43 km deep · 80 km away
33. 2.059 km ESE of Nikolski, AlaskaTue, Dec 21, 8:21 AM AKST · 1737 days ago · 22 km deep · 70 km away
34. 2.363 km ESE of Nikolski, AlaskaTue, Dec 21, 11:12 AM AKST · 1736 days ago · 22 km deep · 69 km away
35. 1.783 km WSW of Unalaska, AlaskaThu, Dec 23, 7:25 AM AKST · 1735 days ago · 7 km deep · 48 km away
36. 2.4138 km S of Unalaska, AlaskaSat, Dec 25, 1:16 AM AKST · 1733 days ago · 10 km deep · 88 km away
37. 2.1109 km E of Nikolski, AlaskaSat, Dec 25, 5:06 AM AKST · 1733 days ago · 17 km deep · 28 km away
38. 2.532 km SSW of Unalaska, AlaskaSat, Dec 25, 9:20 PM AKST · 1732 days ago · 78 km deep · 59 km away
39. 1.991 km E of Nikolski, AlaskaMon, Dec 27, 8:15 PM AKST · 1730 days ago · 25 km deep · 25 km away
40. 1.9113 km S of Unalaska, AlaskaTue, Dec 28, 5:45 PM AKST · 1729 days ago · 3 km deep · 43 km away
41. 2.285 km SSW of Unalaska, AlaskaFri, Dec 31, 8:21 PM AKST · 1726 days ago · 17 km deep · 21 km away
42. 1.755 km SW of Unalaska, AlaskaSat, Jan 1, 12:48 PM AKST · 1725 days ago · 13 km deep · 42 km away
43. 2.966 km SSW of Unalaska, AlaskaSat, Jan 1, 8:03 PM AKST · 1725 days ago · 4 km deep · 26 km away
44. 1.875 km S of Unalaska, AlaskaSat, Jan 1, 8:23 PM AKST · 1725 days ago · 26 km deep · 57 km away
45. 2.558 km SE of Nikolski, AlaskaSat, Jan 1, 11:06 PM AKST · 1725 days ago · 34 km deep · 86 km away
46. 1.949 km ESE of Nikolski, AlaskaSun, Jan 2, 12:03 AM AKST · 1725 days ago · 26 km deep · 72 km away
47. 1.642 km SW of Unalaska, AlaskaSun, Jan 2, 2:10 AM AKST · 1725 days ago · 15 km deep · 54 km away
48. 1.9Fox Islands, Aleutian Islands, AlaskaSun, Jan 2, 3:14 AM AKST · 1725 days ago · 51 km deep · 55 km away
49. 1.656 km SW of Unalaska, AlaskaSun, Jan 2, 6:05 PM AKST · 1724 days ago · 17 km deep · 43 km away
50. 4.261 km SE of Unalaska, AlaskaMon, Jan 3, 2:58 AM AKST · 1724 days ago · 44 km deep · 98 km away · felt by 5
51. 3.583 km S of Unalaska, AlaskaMon, Jan 3, 9:12 PM AKST · 1723 days ago · 29 km deep · 35 km away
52. 1.938 km S of Unalaska, AlaskaTue, Jan 4, 6:55 AM AKST · 1723 days ago · 71 km deep · 65 km away
53. 2.169 km SSW of Unalaska, AlaskaWed, Jan 5, 1:45 AM AKST · 1722 days ago · 21 km deep · 31 km away
54. 3.287 km S of Unalaska, AlaskaWed, Jan 5, 5:38 AM AKST · 1722 days ago · 35 km deep · 34 km away
55. 3.5Fox Islands, Aleutian Islands, AlaskaWed, Jan 5, 6:20 AM AKST · 1722 days ago · 35 km deep · 32 km away
56. 3.391 km E of Nikolski, AlaskaWed, Jan 5, 4:34 PM AKST · 1721 days ago · 35 km deep · 20 km away
57. 2.075 km SSW of Unalaska, AlaskaThu, Jan 6, 4:01 AM AKST · 1721 days ago · 38 km deep · 32 km away
58. 1.927 km SSW of Unalaska, AlaskaThu, Jan 6, 4:58 AM AKST · 1721 days ago · 84 km deep · 65 km away
59. 1.931 km WSW of Unalaska, AlaskaThu, Jan 6, 5:48 AM AKST · 1721 days ago · 83 km deep · 68 km away
60. 3.072 km S of Unalaska, AlaskaFri, Jan 7, 9:13 PM AKST · 1719 days ago · 35 km deep · 51 km away

The first 60 of 186.

Before

1. 3.1Fox Islands, Aleutian Islands, AlaskaSat, Nov 20, 12:30 AM AKST · 1768 days ago · 53 km deep · 77 km away
2. 1.824 km S of Unalaska, AlaskaThu, Nov 18, 11:25 AM AKST · 1769 days ago · 25 km deep · 74 km away
3. 1.791 km SSW of Unalaska, AlaskaThu, Nov 18, 4:19 AM AKST · 1770 days ago · 26 km deep · 21 km away
4. 2.0107 km ESE of Nikolski, AlaskaWed, Nov 17, 12:10 AM AKST · 1771 days ago · 15 km deep · 77 km away
5. 1.965 km S of Unalaska, AlaskaTue, Nov 16, 11:39 PM AKST · 1771 days ago · 71 km deep · 46 km away
6. 2.290 km SW of Unalaska, AlaskaTue, Nov 16, 11:51 AM AKST · 1771 days ago · 53 km deep · 8 km away
7. 1.854 km E of Nikolski, AlaskaMon, Nov 15, 6:12 PM AKST · 1772 days ago · 74 km deep · 57 km away
8. 2.953 km SE of Nikolski, AlaskaMon, Nov 15, 8:23 AM AKST · 1773 days ago · 35 km deep · 85 km away
9. 1.629 km S of Unalaska, AlaskaMon, Nov 15, 1:36 AM AKST · 1773 days ago · 13 km deep · 71 km away
10. 3.539 km SSE of Unalaska, AlaskaSat, Nov 13, 4:50 PM AKST · 1774 days ago · 65 km deep · 80 km away
11. 1.5100 km SSW of Unalaska, AlaskaSat, Nov 13, 3:54 PM AKST · 1774 days ago · 13 km deep · 26 km away
12. 2.675 km SSW of Unalaska, AlaskaSat, Nov 13, 7:36 AM AKST · 1775 days ago · 41 km deep · 33 km away
13. 1.845 km SW of Unalaska, AlaskaSat, Nov 13, 5:59 AM AKST · 1775 days ago · 10 km deep · 49 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021ew1edxk. Read Wed, Sep 23, 2026, 5:37 AM UTC.