M1.6 earthquake 88 km W of Adak, Alaska

Magnitude

1.6 (ml), micro

Local time

Sat, Dec 26, 2020, 3:40 AM HAST

UTC

2020-12-26 13:40:51 UTC

Depth

7.2 km (4.5 mi), shallow

Epicenter

51.867° N, 177.914° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.8 km in depth

Magnitude uncertainty

±0.18

Depth from

From location

Station coverage gap

184°, poorly surrounded by stations

Stations used

5

After

1. 1.975 km SW of Adak, AlaskaSat, Dec 26, 4:32 AM HAST · 2101 days ago · 33 km deep · 62 km away
2. 2.088 km W of Adak, AlaskaSat, Dec 26, 4:30 PM HAST · 2100 days ago · 7 km deep · 1 km away
3. 1.688 km W of Adak, AlaskaSat, Dec 26, 5:12 PM HAST · 2100 days ago · 7 km deep · 0 km away
4. 1.782 km W of Adak, AlaskaSat, Dec 26, 11:12 PM HAST · 2100 days ago · 8 km deep · 6 km away
5. 2.2131 km SW of Adak, AlaskaSun, Dec 27, 5:03 PM HAST · 2099 days ago · 26 km deep · 81 km away
6. 1.9127 km SW of Adak, AlaskaMon, Dec 28, 1:27 AM HAST · 2099 days ago · 22 km deep · 77 km away
7. 2.1129 km WSW of Adak, AlaskaMon, Dec 28, 4:27 AM HAST · 2099 days ago · 26 km deep · 70 km away
8. 1.681 km W of Adak, AlaskaMon, Dec 28, 3:51 PM HAST · 2098 days ago · 7 km deep · 7 km away
9. 3.2127 km WSW of Adak, AlaskaMon, Dec 28, 6:33 PM HAST · 2098 days ago · 10 km deep · 52 km away
10. 2.1111 km WSW of Adak, AlaskaTue, Dec 29, 1:15 PM HAST · 2098 days ago · 69 km deep · 35 km away
11. 2.555 km SSW of Adak, AlaskaTue, Dec 29, 6:29 PM HAST · 2097 days ago · 35 km deep · 87 km away
12. 2.7120 km WSW of Adak, AlaskaWed, Dec 30, 2:57 AM HAST · 2097 days ago · 21 km deep · 40 km away
13. 1.6115 km WSW of Adak, AlaskaWed, Dec 30, 5:16 PM HAST · 2096 days ago · 29 km deep · 56 km away
14. 3.0Andreanof Islands, Aleutian Islands, AlaskaMon, Jan 4, 1:03 AM HAST · 2092 days ago · 50 km deep · 90 km away
15. 2.1176 km WSW of Adak, AlaskaMon, Jan 4, 5:25 AM HAST · 2092 days ago · 76 km deep · 92 km away
16. 2.184 km WSW of Adak, AlaskaMon, Jan 4, 10:36 AM HAST · 2092 days ago · 44 km deep · 47 km away
17. 1.762 km SW of Adak, AlaskaMon, Jan 4, 11:43 PM HAST · 2091 days ago · 26 km deep · 70 km away
18. 3.6120 km SW of Adak, AlaskaTue, Jan 5, 2:27 PM HAST · 2090 days ago · 35 km deep · 86 km away
19. 1.8117 km SW of Adak, AlaskaTue, Jan 5, 2:31 PM HAST · 2090 days ago · 26 km deep · 80 km away
20. 1.866 km SSW of Adak, AlaskaTue, Jan 5, 6:54 PM HAST · 2090 days ago · 46 km deep · 76 km away
21. 1.692 km SW of Adak, AlaskaWed, Jan 6, 5:08 AM HAST · 2090 days ago · 25 km deep · 54 km away
22. 1.5125 km WSW of Adak, AlaskaWed, Jan 6, 6:11 PM HAST · 2089 days ago · 13 km deep · 56 km away
23. 3.0134 km WSW of Adak, AlaskaThu, Jan 7, 3:43 AM HAST · 2089 days ago · 31 km deep · 73 km away
24. 1.6123 km SW of Adak, AlaskaThu, Jan 7, 9:21 AM HAST · 2089 days ago · 13 km deep · 79 km away
25. 1.622 km SSE of Adak, AlaskaFri, Jan 8, 3:12 AM HAST · 2088 days ago · 69 km deep · 98 km away
26. 1.967 km SSW of Adak, AlaskaFri, Jan 8, 9:34 PM HAST · 2087 days ago · 27 km deep · 86 km away
27. 2.2141 km WSW of Adak, AlaskaSat, Jan 9, 4:19 AM HAST · 2087 days ago · 22 km deep · 67 km away
28. 2.936 km S of Adak, AlaskaSat, Jan 9, 4:26 AM HAST · 2087 days ago · 35 km deep · 93 km away
29. 1.970 km SSW of Adak, AlaskaSat, Jan 9, 5:57 AM HAST · 2087 days ago · 23 km deep · 93 km away
30. 1.733 km S of Adak, AlaskaSat, Jan 9, 3:36 PM HAST · 2086 days ago · 45 km deep · 90 km away
31. 1.979 km SW of Adak, AlaskaSat, Jan 9, 4:05 PM HAST · 2086 days ago · 23 km deep · 54 km away
32. 1.585 km WSW of Adak, AlaskaSun, Jan 10, 4:11 PM HAST · 2085 days ago · 16 km deep · 43 km away
33. 2.930 km SSW of Adak, AlaskaSun, Jan 10, 9:39 PM HAST · 2085 days ago · 38 km deep · 81 km away
34. 2.766 km SW of Adak, AlaskaMon, Jan 11, 1:13 AM HAST · 2085 days ago · 39 km deep · 70 km away
35. 3.776 km NNW of Adak, AlaskaMon, Jan 18, 1:20 AM HAST · 2078 days ago · 232 km deep · 88 km away
36. 1.8172 km W of Adak, AlaskaMon, Jan 18, 12:34 PM HAST · 2078 days ago · 11 km deep · 85 km away
37. 3.558 km WSW of Adak, AlaskaTue, Jan 19, 3:09 PM HAST · 2076 days ago · 76 km deep · 40 km away
38. 1.973 km SSW of Adak, AlaskaTue, Jan 19, 6:47 PM HAST · 2076 days ago · 26 km deep · 85 km away
39. 1.980 km SW of Adak, AlaskaWed, Jan 20, 12:45 AM HAST · 2076 days ago · 14 km deep · 56 km away
40. 1.9133 km WSW of Adak, AlaskaWed, Jan 20, 1:31 AM HAST · 2076 days ago · 26 km deep · 70 km away
41. 2.7157 km WSW of Adak, AlaskaWed, Jan 20, 4:19 AM HAST · 2076 days ago · 17 km deep · 84 km away
42. 2.2152 km WSW of Adak, AlaskaWed, Jan 20, 11:41 AM HAST · 2076 days ago · 22 km deep · 88 km away
43. 2.1126 km WSW of Adak, AlaskaWed, Jan 20, 4:29 PM HAST · 2075 days ago · 7 km deep · 46 km away
44. 1.6126 km WSW of Adak, AlaskaThu, Jan 21, 12:08 AM HAST · 2075 days ago · 7 km deep · 44 km away
45. 1.633 km SSW of Adak, AlaskaThu, Jan 21, 12:10 AM HAST · 2075 days ago · 36 km deep · 86 km away
46. 1.539 km S of Adak, AlaskaThu, Jan 21, 11:39 PM HAST · 2074 days ago · 39 km deep · 94 km away
47. 1.755 km SSW of Adak, AlaskaFri, Jan 22, 12:32 AM HAST · 2074 days ago · 22 km deep · 92 km away
48. 1.9131 km W of Adak, AlaskaFri, Jan 22, 8:55 AM HAST · 2074 days ago · 94 km deep · 45 km away
49. 1.584 km SW of Adak, AlaskaFri, Jan 22, 2:26 PM HAST · 2073 days ago · 14 km deep · 57 km away
50. 2.1162 km W of Adak, AlaskaFri, Jan 22, 3:10 PM HAST · 2073 days ago · 92 km deep · 76 km away
51. 1.9137 km WSW of Adak, AlaskaFri, Jan 22, 6:31 PM HAST · 2073 days ago · 25 km deep · 67 km away
52. 1.7113 km WSW of Adak, AlaskaSat, Jan 23, 3:11 AM HAST · 2073 days ago · 13 km deep · 45 km away
53. 1.9135 km WSW of Adak, AlaskaSat, Jan 23, 12:33 PM HAST · 2073 days ago · 23 km deep · 73 km away
54. 2.7102 km SW of Adak, AlaskaSun, Jan 24, 7:17 AM HAST · 2072 days ago · 33 km deep · 59 km away
55. 2.0124 km WSW of Adak, AlaskaSun, Jan 24, 8:33 AM HAST · 2072 days ago · 14 km deep · 58 km away
56. 2.783 km W of Adak, AlaskaSun, Jan 24, 5:09 PM HAST · 2071 days ago · 108 km deep · 8 km away
57. 3.043 km S of Adak, AlaskaMon, Jan 25, 10:24 PM HAST · 2070 days ago · 39 km deep · 93 km away
58. 1.681 km W of Adak, AlaskaWed, Jan 27, 7:17 PM HAST · 2068 days ago · 8 km deep · 7 km away
59. 3.491 km SW of Adak, AlaskaWed, Jan 27, 9:15 PM HAST · 2068 days ago · 23 km deep · 73 km away
60. 2.1134 km WSW of Adak, AlaskaThu, Jan 28, 8:30 AM HAST · 2068 days ago · 20 km deep · 69 km away

The first 60 of 136.

Before

1. 2.090 km W of Adak, AlaskaSat, Dec 26, 2:25 AM HAST · 2101 days ago · 11 km deep · 3 km away
2. 1.8115 km WSW of Adak, AlaskaFri, Dec 25, 3:37 PM HAST · 2101 days ago · 29 km deep · 53 km away
3. 1.9129 km WSW of Adak, AlaskaFri, Dec 25, 9:20 AM HAST · 2102 days ago · 26 km deep · 69 km away
4. 1.961 km SSW of Adak, AlaskaThu, Dec 24, 11:08 AM HAST · 2103 days ago · 43 km deep · 79 km away
5. 1.969 km SSW of Adak, AlaskaThu, Dec 24, 7:43 AM HAST · 2103 days ago · 44 km deep · 82 km away
6. 1.896 km SW of Adak, AlaskaThu, Dec 24, 6:09 AM HAST · 2103 days ago · 45 km deep · 61 km away
7. 2.0101 km WSW of Adak, AlaskaWed, Dec 23, 4:44 AM HAST · 2104 days ago · 64 km deep · 33 km away
8. 2.6139 km WSW of Adak, AlaskaWed, Dec 23, 2:49 AM HAST · 2104 days ago · 35 km deep · 79 km away
9. 2.2148 km WSW of Adak, AlaskaWed, Dec 23, 1:14 AM HAST · 2104 days ago · 58 km deep · 70 km away
10. 2.184 km W of Adak, AlaskaMon, Dec 21, 3:05 PM HAST · 2105 days ago · 94 km deep · 8 km away
11. 2.7112 km W of Adak, AlaskaMon, Dec 21, 11:05 AM HAST · 2106 days ago · 107 km deep · 26 km away
12. 1.9152 km WSW of Adak, AlaskaMon, Dec 21, 4:37 AM HAST · 2106 days ago · 11 km deep · 71 km away
13. 1.667 km WSW of Adak, AlaskaSun, Dec 20, 11:37 PM HAST · 2106 days ago · 40 km deep · 48 km away
14. 1.782 km W of Adak, AlaskaSun, Dec 20, 10:53 PM HAST · 2106 days ago · 7 km deep · 6 km away
15. 1.7156 km WSW of Adak, AlaskaSun, Dec 20, 7:42 PM HAST · 2106 days ago · 14 km deep · 74 km away
16. 1.8109 km SW of Adak, AlaskaSat, Dec 19, 9:08 PM HAST · 2107 days ago · 48 km deep · 70 km away
17. 1.8104 km SW of Adak, AlaskaSat, Dec 19, 9:07 PM HAST · 2107 days ago · 44 km deep · 66 km away
18. 1.9111 km SW of Adak, AlaskaSat, Dec 19, 6:54 PM HAST · 2107 days ago · 26 km deep · 73 km away
19. 1.9131 km WSW of Adak, AlaskaSat, Dec 19, 2:13 PM HAST · 2108 days ago · 23 km deep · 71 km away
20. 1.5126 km WSW of Adak, AlaskaFri, Dec 18, 11:08 PM HAST · 2108 days ago · 25 km deep · 58 km away

From the USGS Earthquake Hazards Program and its partner networks, event av91169986. Read Sun, Sep 27, 2026, 11:54 AM UTC.