M1.9 earthquake 86 km SSW of Unalaska, Alaska

Magnitude

1.9 (ml), micro

Local time

Tue, Mar 16, 2021, 11:25 AM AKDT

UTC

2021-03-16 19:25:34 UTC

Depth

25.6 km (15.9 mi), shallow

Epicenter

53.153° N, 167.027° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

21

• Unalaska, AlaskaPopulation 4,491. Forecast87 kmSSW

After

1. 1.869 km SE of Unalaska, AlaskaTue, Mar 16, 4:29 PM AKDT · 2021 days ago · 43 km deep · 89 km away
2. 1.666 km SW of Unalaska, AlaskaTue, Mar 16, 5:12 PM AKDT · 2021 days ago · 13 km deep · 44 km away
3. 1.574 km S of Unalaska, AlaskaWed, Mar 17, 11:38 PM AKDT · 2019 days ago · 45 km deep · 24 km away
4. 1.561 km ESE of Unalaska, AlaskaThu, Mar 18, 2:31 AM AKDT · 2019 days ago · 25 km deep · 97 km away
5. 3.278 km S of Unalaska, AlaskaThu, Mar 18, 2:36 AM AKDT · 2019 days ago · 25 km deep · 24 km away
6. 1.988 km ENE of Nikolski, AlaskaSat, Mar 20, 1:53 AM AKDT · 2017 days ago · 55 km deep · 37 km away
7. 1.825 km SSW of Unalaska, AlaskaSun, Mar 21, 8:40 AM AKDT · 2016 days ago · 70 km deep · 62 km away
8. 3.077 km SE of Unalaska, AlaskaMon, Mar 22, 12:39 AM AKDT · 2015 days ago · 27 km deep · 89 km away
9. 2.070 km SE of Unalaska, AlaskaMon, Mar 22, 12:40 AM AKDT · 2015 days ago · 15 km deep · 90 km away
10. 2.266 km SE of Unalaska, AlaskaMon, Mar 22, 2:47 AM AKDT · 2015 days ago · 48 km deep · 89 km away
11. 2.880 km SE of Unalaska, AlaskaMon, Mar 22, 4:59 AM AKDT · 2015 days ago · 35 km deep · 89 km away
12. 2.3124 km S of Unalaska, AlaskaWed, Mar 24, 9:59 AM AKDT · 2013 days ago · 5 km deep · 43 km away
13. 1.8107 km E of Nikolski, AlaskaWed, Mar 24, 8:48 PM AKDT · 2013 days ago · 16 km deep · 29 km away
14. 1.771 km SSW of Unalaska, AlaskaWed, Mar 24, 9:42 PM AKDT · 2013 days ago · 50 km deep · 16 km away
15. 1.727 km S of Unalaska, AlaskaThu, Mar 25, 3:02 AM AKDT · 2012 days ago · 89 km deep · 60 km away
16. 2.938 km SSE of Unalaska, AlaskaThu, Mar 25, 9:23 PM AKDT · 2012 days ago · 80 km deep · 65 km away
17. 1.6104 km E of Nikolski, AlaskaThu, Mar 25, 11:12 PM AKDT · 2012 days ago · 26 km deep · 31 km away
18. 2.548 km ESE of Nikolski, AlaskaSat, Mar 27, 8:06 PM AKDT · 2010 days ago · 35 km deep · 88 km away
19. 1.743 km W of Dutch Harbor, AlaskaSun, Mar 28, 2:50 AM AKDT · 2009 days ago · 7 km deep · 76 km away
20. 2.834 km SSE of Unalaska, AlaskaTue, Mar 30, 2:48 AM AKDT · 2007 days ago · 70 km deep · 68 km away
21. 2.077 km SSW of Unalaska, AlaskaTue, Mar 30, 6:58 AM AKDT · 2007 days ago · 25 km deep · 17 km away
22. 3.366 km SE of Unalaska, AlaskaWed, Mar 31, 1:15 AM AKDT · 2006 days ago · 35 km deep · 93 km away
23. 3.093 km WSW of Unalaska, AlaskaFri, Apr 2, 2:28 AM AKDT · 2004 days ago · 71 km deep · 75 km away
24. 1.679 km SE of Unalaska, AKFri, Apr 2, 3:08 AM AKDT · 2004 days ago · 22 km deep · 95 km away
25. 3.446 km ESE of Nikolski, AlaskaSat, Apr 3, 2:20 AM AKDT · 2003 days ago · 35 km deep · 93 km away
26. 1.849 km SW of Unalaska, AlaskaSun, Apr 4, 9:07 PM AKDT · 2002 days ago · 68 km deep · 46 km away
27. 1.953 km ESE of Nikolski, AlaskaMon, Apr 5, 3:54 AM AKDT · 2001 days ago · 26 km deep · 85 km away
28. 1.887 km SSW of Unalaska, AlaskaTue, Apr 6, 12:50 AM AKDT · 2000 days ago · 26 km deep · 3 km away
29. 3.1Fox Islands, Aleutian Islands, AlaskaTue, Apr 6, 2:22 AM AKDT · 2000 days ago · 20 km deep · 90 km away
30. 2.244 km ESE of Nikolski, AlaskaWed, Apr 7, 7:20 AM AKDT · 1999 days ago · 55 km deep · 91 km away
31. 1.669 km WSW of Unalaska, AlaskaFri, Apr 9, 12:20 PM AKDT · 1997 days ago · 14 km deep · 55 km away
32. 1.570 km WSW of Unalaska, AlaskaFri, Apr 9, 4:09 PM AKDT · 1997 days ago · 8 km deep · 58 km away
33. 2.045 km SE of Unalaska, AlaskaSat, Apr 10, 12:20 PM AKDT · 1996 days ago · 39 km deep · 78 km away
34. 2.9Fox Islands, Aleutian Islands, AlaskaSat, Apr 10, 4:22 PM AKDT · 1996 days ago · 52 km deep · 12 km away
35. 1.879 km SE of Unalaska, AlaskaMon, Apr 12, 4:50 PM AKDT · 1994 days ago · 16 km deep · 86 km away
36. 1.969 km E of Nikolski, AlaskaMon, Apr 12, 8:34 PM AKDT · 1994 days ago · 40 km deep · 56 km away
37. 1.986 km SW of Unalaska, AlaskaWed, Apr 14, 2:08 PM AKDT · 1992 days ago · 26 km deep · 28 km away
38. 1.769 km S of Unalaska, AlaskaThu, Apr 15, 4:02 AM AKDT · 1991 days ago · 21 km deep · 33 km away
39. 2.6131 km S of Unalaska, AlaskaThu, Apr 15, 5:02 AM AKDT · 1991 days ago · 4 km deep · 58 km away
40. 3.0142 km ESE of Nikolski, AlaskaFri, Apr 16, 10:33 AM AKDT · 1990 days ago · 6 km deep · 63 km away
41. 1.663 km SSW of Unalaska, AlaskaFri, Apr 16, 5:47 PM AKDT · 1990 days ago · 30 km deep · 24 km away
42. 1.687 km SE of Unalaska, AlaskaSat, Apr 17, 3:47 AM AKDT · 1989 days ago · 68 km deep · 97 km away
43. 1.582 km SW of Unalaska, AlaskaSat, Apr 17, 6:52 AM AKDT · 1989 days ago · 62 km deep · 23 km away
44. 1.755 km ESE of Nikolski, AlaskaSat, Apr 17, 11:32 PM AKDT · 1988 days ago · 26 km deep · 90 km away
45. 2.68 km WNW of Dutch Harbor, AlaskaSun, Apr 18, 12:41 PM AKDT · 1988 days ago · 114 km deep · 87 km away
46. 1.523 km W of Dutch Harbor, AlaskaMon, Apr 19, 4:47 PM AKDT · 1987 days ago · 5 km deep · 81 km away
47. 2.865 km SE of Nikolski, AlaskaMon, Apr 19, 5:20 PM AKDT · 1987 days ago · 35 km deep · 93 km away
48. 1.926 km ESE of Unalaska, AlaskaTue, Apr 20, 9:58 PM AKDT · 1986 days ago · 74 km deep · 91 km away
49. 2.169 km SE of Unalaska, AlaskaTue, Apr 20, 10:35 PM AKDT · 1986 days ago · 23 km deep · 96 km away
50. 3.286 km E of Nikolski, AlaskaWed, Apr 21, 9:48 PM AKDT · 1985 days ago · 35 km deep · 46 km away
51. 1.865 km SE of Unalaska, AlaskaSat, Apr 24, 12:03 AM AKDT · 1982 days ago · 11 km deep · 87 km away
52. 1.730 km SW of Unalaska, AlaskaSat, Apr 24, 10:56 PM AKDT · 1982 days ago · 79 km deep · 57 km away
53. 2.869 km SE of Nikolski, AlaskaMon, Apr 26, 9:38 AM AKDT · 1980 days ago · 22 km deep · 91 km away
54. 2.792 km ESE of Nikolski, AlaskaMon, Apr 26, 4:26 PM AKDT · 1980 days ago · 26 km deep · 58 km away
55. 1.731 km SE of Unalaska, AlaskaMon, Apr 26, 8:47 PM AKDT · 1980 days ago · 43 km deep · 75 km away
56. 2.6105 km S of Unalaska, AlaskaWed, Apr 28, 12:25 PM AKDT · 1978 days ago · 32 km deep · 29 km away
57. 3.6119 km E of Nikolski, AlaskaThu, Apr 29, 8:47 AM AKDT · 1977 days ago · 51 km deep · 34 km away
58. 2.088 km E of Nikolski, AlaskaTue, May 4, 8:22 AM AKDT · 1972 days ago · 50 km deep · 53 km away
59. 3.653 km ESE of Nikolski, AlaskaWed, May 5, 6:10 PM AKDT · 1971 days ago · 35 km deep · 95 km away
60. 1.57 km N of Dutch Harbor, AlaskaThu, May 6, 8:44 AM AKDT · 1970 days ago · 10 km deep · 95 km away

The first 60 of 62.

Before

1. 1.979 km S of Unalaska, AlaskaTue, Mar 16, 10:31 AM AKDT · 2021 days ago · 22 km deep · 21 km away
2. 3.259 km ESE of Nikolski, AlaskaTue, Mar 16, 7:45 AM AKDT · 2021 days ago · 28 km deep · 89 km away
3. 2.636 km SE of Unalaska, AlaskaSun, Mar 14, 11:40 PM AKDT · 2022 days ago · 41 km deep · 81 km away
4. 3.148 km S of Unalaska, AlaskaSun, Mar 14, 9:40 AM AKDT · 2023 days ago · 67 km deep · 41 km away
5. 1.956 km SE of Unalaska, AlaskaSun, Mar 14, 1:14 AM AKST · 2023 days ago · 25 km deep · 85 km away
6. 2.1146 km ESE of Nikolski, AlaskaFri, Mar 12, 7:20 PM AKST · 2025 days ago · 26 km deep · 72 km away
7. 2.9102 km SSW of Unalaska, AlaskaMon, Mar 8, 11:45 PM AKST · 2028 days ago · 35 km deep · 23 km away
8. 2.4136 km S of Unalaska, AlaskaMon, Mar 8, 1:31 AM AKST · 2029 days ago · 5 km deep · 57 km away
9. 3.746 km ESE of Nikolski, AlaskaSun, Mar 7, 10:42 PM AKST · 2029 days ago · 44 km deep · 86 km away
10. 1.710 km WNW of Dutch Harbor, AlaskaMon, Mar 1, 4:41 AM AKST · 2036 days ago · 3 km deep · 89 km away
11. 2.167 km ESE of Nikolski, AlaskaSun, Feb 28, 2:51 PM AKST · 2037 days ago · 16 km deep · 74 km away
12. 3.279 km SSW of Unalaska, AlaskaSat, Feb 27, 8:43 AM AKST · 2038 days ago · 10 km deep · 11 km away
13. 2.8140 km S of Unalaska, AlaskaWed, Feb 24, 4:51 AM AKST · 2041 days ago · 10 km deep · 68 km away
14. 3.1133 km S of Unalaska, AlaskaWed, Feb 24, 2:45 AM AKST · 2041 days ago · 29 km deep · 56 km away
15. 2.7Fox Islands, Aleutian Islands, AlaskaWed, Feb 24, 2:09 AM AKST · 2041 days ago · 20 km deep · 55 km away
16. 2.1135 km S of Unalaska, AlaskaTue, Feb 23, 11:22 PM AKST · 2041 days ago · 37 km deep · 60 km away
17. 2.1118 km S of Unalaska, AlaskaTue, Feb 23, 4:05 PM AKST · 2042 days ago · 6 km deep · 41 km away
18. 3.374 km SSW of Unalaska, AlaskaTue, Feb 23, 5:57 AM AKST · 2042 days ago · 35 km deep · 18 km away
19. 1.984 km S of Unalaska, AlaskaMon, Feb 22, 6:49 PM AKST · 2043 days ago · 5 km deep · 28 km away
20. 1.584 km SW of Unalaska, AlaskaSat, Feb 20, 5:48 PM AKST · 2045 days ago · 14 km deep · 20 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0213gcrp2g. Read Sun, Sep 27, 2026, 6:47 PM UTC.