M1.9 earthquake 75 km E of Adak, Alaska

Magnitude

1.9 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Tue, Dec 29, 2020, 10:27 PM HAST

UTC

2020-12-30 08:27:45 UTC

Depth

60.0 km (37.3 mi), shallow

Epicenter

51.771° N, 175.552° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

23

After

1. 3.066 km S of Atka, AlaskaWed, Dec 30, 4:45 AM HAST · 2103 days ago · 20 km deep · 84 km away
2. 1.979 km SSW of Atka, AlaskaWed, Dec 30, 11:04 AM HAST · 2102 days ago · 26 km deep · 82 km away
3. 1.639 km SSE of Adak, AlaskaWed, Dec 30, 1:31 PM HAST · 2102 days ago · 34 km deep · 62 km away
4. 1.678 km SE of Adak, AlaskaWed, Dec 30, 5:30 PM HAST · 2102 days ago · 26 km deep · 38 km away
5. 2.9Andreanof Islands, Aleutian Islands, AlaskaThu, Dec 31, 11:59 AM HAST · 2101 days ago · 11 km deep · 22 km away
6. 1.666 km SSE of Adak, AlaskaSun, Jan 3, 9:02 PM HAST · 2098 days ago · 15 km deep · 63 km away
7. 3.0Andreanof Islands, Aleutian Islands, AlaskaMon, Jan 4, 1:03 AM HAST · 2098 days ago · 50 km deep · 85 km away
8. 2.636 km SSW of Atka, AlaskaMon, Jan 4, 1:10 AM HAST · 2098 days ago · 215 km deep · 84 km away
9. 2.057 km NE of Adak, AlaskaMon, Jan 4, 5:53 AM HAST · 2098 days ago · 116 km deep · 53 km away
10. 1.746 km SW of Atka, AlaskaMon, Jan 4, 2:58 PM HAST · 2097 days ago · 60 km deep · 60 km away
11. 1.676 km SE of Adak, AlaskaMon, Jan 4, 4:42 PM HAST · 2097 days ago · 23 km deep · 43 km away
12. 1.639 km SSE of Adak, AlaskaMon, Jan 4, 10:40 PM HAST · 2097 days ago · 33 km deep · 63 km away
13. 1.845 km S of Adak, AlaskaTue, Jan 5, 2:27 AM HAST · 2097 days ago · 46 km deep · 75 km away
14. 2.013 km ESE of Adak, AlaskaTue, Jan 5, 3:33 PM HAST · 2096 days ago · 72 km deep · 62 km away
15. 1.717 km SW of Atka, AlaskaTue, Jan 5, 5:07 PM HAST · 2096 days ago · 10 km deep · 88 km away
16. 1.814 km WSW of Atka, AlaskaTue, Jan 5, 8:00 PM HAST · 2096 days ago · 18 km deep · 89 km away
17. 2.040 km S of Atka, AlaskaTue, Jan 5, 8:57 PM HAST · 2096 days ago · 44 km deep · 95 km away
18. 2.5115 km SSW of Atka, AlaskaWed, Jan 6, 9:19 AM HAST · 2095 days ago · 10 km deep · 81 km away
19. 3.195 km SW of Atka, AlaskaWed, Jan 6, 11:56 AM HAST · 2095 days ago · 30 km deep · 27 km away
20. 1.663 km SSE of Adak, AlaskaWed, Jan 6, 6:07 PM HAST · 2095 days ago · 24 km deep · 61 km away
21. 1.969 km ESE of Adak, AlaskaWed, Jan 6, 9:36 PM HAST · 2095 days ago · 44 km deep · 16 km away
22. 1.622 km SSE of Adak, AlaskaFri, Jan 8, 3:12 AM HAST · 2094 days ago · 69 km deep · 68 km away
23. 3.469 km SE of Adak, AlaskaFri, Jan 8, 10:29 AM HAST · 2093 days ago · 32 km deep · 38 km away
24. 1.939 km SSE of Adak, AlaskaFri, Jan 8, 1:52 PM HAST · 2093 days ago · 36 km deep · 61 km away
25. 2.857 km SE of Adak, AlaskaFri, Jan 8, 3:34 PM HAST · 2093 days ago · 35 km deep · 55 km away
26. 2.936 km S of Adak, AlaskaSat, Jan 9, 4:26 AM HAST · 2093 days ago · 35 km deep · 81 km away
27. 3.890 km SW of Atka, AlaskaSat, Jan 9, 10:27 AM HAST · 2092 days ago · 35 km deep · 39 km away
28. 1.733 km S of Adak, AlaskaSat, Jan 9, 3:36 PM HAST · 2092 days ago · 45 km deep · 82 km away
29. 1.860 km SE of Adak, AlaskaSun, Jan 10, 4:33 PM HAST · 2091 days ago · 10 km deep · 55 km away
30. 1.556 km SSE of Adak, AlaskaSun, Jan 10, 4:55 PM HAST · 2091 days ago · 25 km deep · 57 km away
31. 1.658 km SSE of Adak, AlaskaSun, Jan 10, 5:03 PM HAST · 2091 days ago · 25 km deep · 57 km away
32. 2.930 km SSW of Adak, AlaskaSun, Jan 10, 9:39 PM HAST · 2091 days ago · 38 km deep · 88 km away
33. 2.7100 km ESE of Adak, AlaskaMon, Jan 11, 2:18 AM HAST · 2091 days ago · 35 km deep · 31 km away
34. 1.950 km SSW of Atka, AlaskaMon, Jan 11, 10:57 AM HAST · 2090 days ago · 26 km deep · 79 km away
35. 2.283 km ESE of Adak, AlaskaMon, Jan 11, 12:44 PM HAST · 2090 days ago · 48 km deep · 28 km away
36. 4.050 km W of Atka, AlaskaWed, Jan 13, 6:30 PM HAST · 2088 days ago · 90 km deep · 58 km away
37. 2.129 km SW of Atka, AlaskaFri, Jan 15, 11:17 AM HAST · 2086 days ago · 90 km deep · 76 km away
38. 2.067 km S of Atka, AlaskaFri, Jan 15, 2:35 PM HAST · 2086 days ago · 4 km deep · 90 km away
39. 2.491 km SW of Atka, AlaskaFri, Jan 15, 3:51 PM HAST · 2086 days ago · 16 km deep · 33 km away
40. 2.463 km SW of Atka, AlaskaFri, Jan 15, 9:29 PM HAST · 2086 days ago · 2 km deep · 53 km away
41. 1.760 km ESE of Adak, AlaskaMon, Jan 18, 6:39 AM HAST · 2084 days ago · 55 km deep · 15 km away
42. 2.733 km SW of Atka, AlaskaMon, Jan 18, 7:01 AM HAST · 2084 days ago · 220 km deep · 76 km away
43. 2.1Andreanof Islands, Aleutian Islands, AlaskaMon, Jan 18, 9:20 AM HAST · 2083 days ago · 72 km deep · 81 km away
44. 2.348 km ENE of Adak, AlaskaMon, Jan 18, 9:35 PM HAST · 2083 days ago · 129 km deep · 41 km away
45. 1.963 km E of Adak, AlaskaWed, Jan 20, 5:01 AM HAST · 2082 days ago · 21 km deep · 12 km away
46. 1.633 km SSW of Adak, AlaskaThu, Jan 21, 12:10 AM HAST · 2081 days ago · 36 km deep · 86 km away
47. 1.766 km SSW of Atka, AlaskaThu, Jan 21, 2:21 AM HAST · 2081 days ago · 18 km deep · 58 km away
48. 1.968 km SSE of Adak, AlaskaThu, Jan 21, 2:16 PM HAST · 2080 days ago · 22 km deep · 78 km away
49. 1.539 km S of Adak, AlaskaThu, Jan 21, 11:39 PM HAST · 2080 days ago · 39 km deep · 82 km away
50. 1.755 km SSW of Adak, AlaskaFri, Jan 22, 12:32 AM HAST · 2080 days ago · 22 km deep · 97 km away
51. 2.047 km E of Adak, AlaskaFri, Jan 22, 5:28 AM HAST · 2080 days ago · 172 km deep · 29 km away
52. 2.563 km ENE of Adak, AlaskaFri, Jan 22, 8:19 AM HAST · 2079 days ago · 182 km deep · 34 km away
53. 2.188 km SW of Atka, AlaskaFri, Jan 22, 9:46 PM HAST · 2079 days ago · 26 km deep · 25 km away
54. 2.051 km SE of Adak, AlaskaSat, Jan 23, 3:28 AM HAST · 2079 days ago · 26 km deep · 54 km away
55. 1.623 km SE of Adak, AlaskaSat, Jan 23, 3:51 AM HAST · 2079 days ago · 54 km deep · 58 km away
56. 2.187 km SE of Adak, AlaskaSat, Jan 23, 4:03 AM HAST · 2079 days ago · 22 km deep · 38 km away
57. 1.657 km SSE of Adak, AlaskaSat, Jan 23, 6:23 AM HAST · 2079 days ago · 27 km deep · 74 km away
58. 1.978 km SE of Adak, AlaskaSat, Jan 23, 3:55 PM HAST · 2078 days ago · 20 km deep · 35 km away
59. 2.077 km ESE of Adak, AlaskaSun, Jan 24, 5:17 PM HAST · 2077 days ago · 50 km deep · 27 km away
60. 2.597 km SW of Atka, AlaskaSun, Jan 24, 5:47 PM HAST · 2077 days ago · 71 km deep · 33 km away

The first 60 of 143.

Before

1. 2.173 km WSW of Atka, AlaskaTue, Dec 29, 4:44 PM HAST · 2103 days ago · 88 km deep · 33 km away
2. 3.335 km SW of Atka, AlaskaMon, Dec 28, 11:39 PM HAST · 2104 days ago · 91 km deep · 70 km away
3. 3.6101 km ESE of Adak, AlaskaMon, Dec 28, 8:13 AM HAST · 2104 days ago · 35 km deep · 32 km away
4. 2.777 km ESE of Adak, AlaskaSun, Dec 27, 3:50 PM HAST · 2105 days ago · 33 km deep · 25 km away
5. 1.547 km SSE of Adak, AlaskaSat, Dec 26, 4:52 PM HAST · 2106 days ago · 18 km deep · 60 km away
6. 2.181 km SW of Atka, AlaskaSat, Dec 26, 1:44 PM HAST · 2106 days ago · 26 km deep · 44 km away
7. 2.094 km ESE of Adak, AlaskaFri, Dec 25, 4:28 AM HAST · 2108 days ago · 26 km deep · 24 km away
8. 3.888 km SW of Atka, AlaskaFri, Dec 25, 2:45 AM HAST · 2108 days ago · 45 km deep · 22 km away
9. 3.074 km SSE of Adak, AlaskaTue, Dec 22, 6:23 AM HAST · 2111 days ago · 25 km deep · 65 km away
10. 2.563 km ENE of Adak, AlaskaSat, Dec 19, 10:37 AM HAST · 2113 days ago · 217 km deep · 40 km away
11. 2.547 km SE of Adak, AlaskaFri, Dec 18, 7:18 AM HAST · 2115 days ago · 35 km deep · 55 km away
12. 2.866 km SSW of Atka, AlaskaFri, Dec 18, 4:05 AM HAST · 2115 days ago · 24 km deep · 60 km away
13. 2.666 km E of Adak, AlaskaFri, Dec 18, 2:06 AM HAST · 2115 days ago · 86 km deep · 24 km away
14. 2.722 km WSW of Atka, AlaskaThu, Dec 17, 11:12 AM HAST · 2115 days ago · 214 km deep · 81 km away
15. 2.874 km SSW of Atka, AlaskaThu, Dec 17, 6:43 AM HAST · 2116 days ago · 35 km deep · 64 km away
16. 4.647 km WSW of Atka, AlaskaThu, Dec 17, 6:32 AM HAST · 2116 days ago · 81 km deep · 57 km away · felt by 1
17. 1.717 km SE of Adak, AlaskaWed, Dec 16, 1:20 PM HAST · 2116 days ago · 71 km deep · 62 km away
18. 2.138 km ENE of Adak, AlaskaWed, Dec 16, 12:56 PM HAST · 2116 days ago · 140 km deep · 45 km away
19. 3.849 km SSW of Adak, AlaskaWed, Dec 16, 6:40 AM HAST · 2117 days ago · 42 km deep · 92 km away
20. 3.268 km SE of Adak, AlaskaWed, Dec 16, 4:11 AM HAST · 2117 days ago · 35 km deep · 44 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak020grs31f5. Read Sat, Oct 3, 2026, 5:10 AM UTC.