M1.9 earthquake 82 km W of Adak, Alaska

Magnitude

1.9 (ml), micro

Local time

Mon, Sep 21, 2020, 12:55 AM HADT

UTC

2020-09-21 09:55:46 UTC

Depth

8.2 km (5.1 mi), shallow

Epicenter

51.858° N, 177.828° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

25

After

1. 2.717 km SE of Adak, AlaskaMon, Sep 21, 3:38 AM HADT · 2197 days ago · 80 km deep · 93 km away
2. 3.330 km SW of Adak, AlaskaMon, Sep 21, 4:34 PM HADT · 2197 days ago · 87 km deep · 60 km away
3. 2.736 km S of Adak, AlaskaTue, Sep 22, 9:18 AM HADT · 2196 days ago · 47 km deep · 84 km away
4. 3.0112 km SW of Adak, AlaskaTue, Sep 22, 1:49 PM HADT · 2196 days ago · 35 km deep · 70 km away
5. 1.7120 km SW of Adak, AlaskaTue, Sep 22, 8:09 PM HADT · 2196 days ago · 22 km deep · 78 km away
6. 1.5131 km WSW of Adak, AlaskaWed, Sep 23, 2:33 AM HADT · 2195 days ago · 10 km deep · 55 km away
7. 1.6152 km WSW of Adak, AlaskaWed, Sep 23, 5:18 PM HADT · 2195 days ago · 18 km deep · 76 km away
8. 1.8131 km WSW of Adak, AlaskaWed, Sep 23, 6:46 PM HADT · 2195 days ago · 32 km deep · 69 km away
9. 1.617 km S of Adak, AlaskaWed, Sep 23, 9:13 PM HADT · 2195 days ago · 65 km deep · 83 km away
10. 1.516 km SSW of Adak, AlaskaWed, Sep 23, 11:32 PM HADT · 2195 days ago · 78 km deep · 78 km away
11. 2.2120 km SW of Adak, AlaskaThu, Sep 24, 12:07 AM HADT · 2194 days ago · 26 km deep · 74 km away
12. 1.642 km SSW of Adak, AlaskaThu, Sep 24, 11:36 AM HADT · 2194 days ago · 45 km deep · 78 km away
13. 2.438 km SW of Adak, AlaskaThu, Sep 24, 11:45 AM HADT · 2194 days ago · 72 km deep · 55 km away
14. 1.5118 km WSW of Adak, AlaskaThu, Sep 24, 12:24 PM HADT · 2194 days ago · 28 km deep · 59 km away
15. 1.5145 km WSW of Adak, AlaskaThu, Sep 24, 3:15 PM HADT · 2194 days ago · 8 km deep · 72 km away
16. 1.7121 km WSW of Adak, AlaskaThu, Sep 24, 11:47 PM HADT · 2194 days ago · 51 km deep · 64 km away
17. 2.0Andreanof Islands, Aleutian Islands, AlaskaSat, Sep 26, 3:09 AM HADT · 2192 days ago · 179 km deep · 67 km away
18. 2.1179 km W of Adak, AlaskaSat, Sep 26, 5:02 PM HADT · 2192 days ago · 96 km deep · 98 km away
19. 2.892 km SW of Adak, AlaskaSun, Sep 27, 5:10 AM HADT · 2191 days ago · 35 km deep · 80 km away
20. 1.663 km WSW of Adak, AlaskaSun, Sep 27, 5:28 AM HADT · 2191 days ago · 10 km deep · 25 km away
21. 1.5115 km SW of Adak, AlaskaMon, Sep 28, 12:34 PM HADT · 2190 days ago · 19 km deep · 67 km away
22. 1.681 km WSW of Adak, AlaskaMon, Sep 28, 7:22 PM HADT · 2190 days ago · 17 km deep · 41 km away
23. 1.822 km SSW of Adak, AlaskaTue, Sep 29, 9:57 AM HADT · 2189 days ago · 68 km deep · 77 km away
24. 1.767 km SSW of Adak, AlaskaTue, Sep 29, 2:34 PM HADT · 2189 days ago · 44 km deep · 75 km away
25. 2.0138 km SW of Adak, AlaskaWed, Sep 30, 2:25 AM HADT · 2188 days ago · 26 km deep · 99 km away
26. 1.685 km W of Adak, AlaskaWed, Sep 30, 7:11 AM HADT · 2188 days ago · 11 km deep · 3 km away
27. 2.434 km S of Adak, AlaskaThu, Oct 1, 6:08 PM HADT · 2187 days ago · 34 km deep · 85 km away
28. 1.676 km WSW of Adak, AlaskaFri, Oct 2, 6:47 PM HADT · 2186 days ago · 29 km deep · 38 km away
29. 1.812 km SSE of Adak, AlaskaSat, Oct 3, 12:09 AM HADT · 2185 days ago · 75 km deep · 86 km away
30. 2.0Andreanof Islands, Aleutian Islands, AlaskaSat, Oct 3, 1:49 AM HADT · 2185 days ago · 7 km deep · 51 km away
31. 3.353 km S of Adak, AlaskaSat, Oct 3, 4:13 AM HADT · 2185 days ago · 33 km deep · 98 km away
32. 1.6115 km WSW of Adak, AlaskaSat, Oct 3, 10:25 AM HADT · 2185 days ago · 36 km deep · 61 km away
33. 3.8124 km WSW of Adak, AlaskaSat, Oct 3, 3:43 PM HADT · 2185 days ago · 65 km deep · 56 km away
34. 1.5135 km W of Adak, AlaskaSat, Oct 3, 6:29 PM HADT · 2185 days ago · 16 km deep · 54 km away
35. 1.738 km SSW of Adak, AlaskaSun, Oct 4, 10:18 PM HADT · 2184 days ago · 15 km deep · 74 km away
36. 1.934 km SSW of Adak, AlaskaMon, Oct 5, 1:05 AM HADT · 2183 days ago · 57 km deep · 77 km away
37. 1.7123 km WSW of Adak, AlaskaMon, Oct 5, 6:45 AM HADT · 2183 days ago · 29 km deep · 66 km away
38. 2.6137 km SW of Adak, AlaskaTue, Oct 6, 6:13 AM HADT · 2182 days ago · 30 km deep · 84 km away
39. 1.984 km WSW of Adak, AlaskaTue, Oct 6, 6:38 AM HADT · 2182 days ago · 70 km deep · 22 km away
40. 4.8135 km WSW of Adak, AlaskaTue, Oct 6, 4:34 PM HADT · 2182 days ago · 47 km deep · 72 km away · felt by 1
41. 2.3177 km WSW of Adak, AlaskaWed, Oct 7, 7:47 AM HADT · 2181 days ago · 63 km deep · 98 km away
42. 2.7137 km SW of Adak, AlaskaWed, Oct 7, 8:12 AM HADT · 2181 days ago · 30 km deep · 80 km away
43. 1.978 km SW of Adak, AlaskaWed, Oct 7, 8:41 AM HADT · 2181 days ago · 26 km deep · 52 km away
44. 3.8152 km WSW of Adak, AlaskaThu, Oct 8, 2:09 PM HADT · 2180 days ago · 10 km deep · 83 km away
45. 2.1128 km WSW of Adak, AlaskaFri, Oct 9, 10:46 AM HADT · 2179 days ago · 24 km deep · 67 km away
46. 2.1130 km WSW of Adak, AlaskaSun, Oct 11, 2:34 AM HADT · 2177 days ago · 24 km deep · 64 km away
47. 2.1178 km WSW of Adak, AlaskaSun, Oct 11, 5:53 AM HADT · 2177 days ago · 70 km deep · 98 km away
48. 1.7139 km WSW of Adak, AlaskaSun, Oct 11, 6:21 AM HADT · 2177 days ago · 17 km deep · 77 km away
49. 1.945 km SW of Adak, AlaskaSun, Oct 11, 8:30 AM HADT · 2177 days ago · 60 km deep · 58 km away
50. 1.8132 km SW of Adak, AlaskaSun, Oct 11, 7:05 PM HADT · 2177 days ago · 27 km deep · 77 km away
51. 3.0111 km SW of Adak, AlaskaSun, Oct 11, 9:09 PM HADT · 2177 days ago · 35 km deep · 75 km away
52. 1.8144 km WSW of Adak, AlaskaMon, Oct 12, 1:17 AM HADT · 2176 days ago · 42 km deep · 86 km away
53. 2.4103 km WSW of Adak, AlaskaMon, Oct 12, 11:39 AM HADT · 2176 days ago · 26 km deep · 46 km away
54. 3.288 km SW of Adak, AlaskaMon, Oct 12, 5:04 PM HADT · 2176 days ago · 35 km deep · 70 km away
55. 2.6125 km WSW of Adak, AlaskaMon, Oct 12, 5:45 PM HADT · 2176 days ago · 28 km deep · 60 km away
56. 3.1117 km WSW of Adak, AlaskaMon, Oct 12, 10:23 PM HADT · 2176 days ago · 13 km deep · 59 km away
57. 3.1140 km W of Adak, AlaskaTue, Oct 13, 7:40 AM HADT · 2175 days ago · 153 km deep · 58 km away
58. 2.1138 km SW of Adak, AlaskaTue, Oct 13, 11:21 AM HADT · 2175 days ago · 26 km deep · 95 km away
59. 1.597 km SW of Adak, AlaskaWed, Oct 14, 7:20 AM HADT · 2174 days ago · 28 km deep · 67 km away
60. 1.668 km SSW of Adak, AlaskaWed, Oct 14, 10:01 AM HADT · 2174 days ago · 32 km deep · 82 km away

The first 60 of 131.

Before

1. 2.679 km WSW of Adak, AlaskaSat, Sep 19, 1:49 AM HADT · 2199 days ago · 77 km deep · 17 km away
2. 1.5141 km WSW of Adak, AlaskaFri, Sep 18, 10:42 PM HADT · 2200 days ago · 23 km deep · 77 km away
3. 1.9119 km SW of Adak, AlaskaFri, Sep 18, 6:59 PM HADT · 2200 days ago · 26 km deep · 69 km away
4. 2.0112 km W of Adak, AlaskaFri, Sep 18, 1:43 PM HADT · 2200 days ago · 90 km deep · 31 km away
5. 2.1126 km W of Adak, AlaskaFri, Sep 18, 1:07 PM HADT · 2200 days ago · 127 km deep · 44 km away
6. 2.0151 km WSW of Adak, AlaskaFri, Sep 18, 8:32 AM HADT · 2200 days ago · 22 km deep · 88 km away
7. 1.7102 km SW of Adak, AlaskaThu, Sep 17, 4:04 PM HADT · 2201 days ago · 26 km deep · 70 km away
8. 1.556 km SSW of Adak, AlaskaThu, Sep 17, 11:46 AM HADT · 2201 days ago · 25 km deep · 83 km away
9. 2.0111 km WSW of Adak, AlaskaThu, Sep 17, 9:19 AM HADT · 2201 days ago · 13 km deep · 43 km away
10. 1.688 km SW of Adak, AlaskaWed, Sep 16, 10:18 AM HADT · 2202 days ago · 29 km deep · 55 km away
11. 1.551 km S of Adak, AlaskaTue, Sep 15, 2:55 AM HADT · 2203 days ago · 25 km deep · 97 km away
12. 2.7109 km W of Adak, AlaskaMon, Sep 14, 7:11 PM HADT · 2204 days ago · 177 km deep · 29 km away
13. 3.0146 km SW of Adak, AlaskaSun, Sep 13, 7:06 PM HADT · 2205 days ago · 29 km deep · 89 km away
14. 1.676 km SW of Adak, AlaskaSun, Sep 13, 12:13 PM HADT · 2205 days ago · 38 km deep · 49 km away
15. 1.5141 km WSW of Adak, AlaskaSat, Sep 12, 4:54 PM HADT · 2206 days ago · 11 km deep · 70 km away
16. 3.3154 km WSW of Adak, AlaskaSat, Sep 12, 6:53 AM HADT · 2206 days ago · 10 km deep · 87 km away
17. 3.5103 km W of Adak, AlaskaFri, Sep 11, 9:58 AM HADT · 2207 days ago · 17 km deep · 21 km away
18. 1.587 km WSW of Adak, AlaskaFri, Sep 11, 3:35 AM HADT · 2207 days ago · 27 km deep · 41 km away
19. 1.9143 km WSW of Adak, AlaskaThu, Sep 10, 7:17 AM HADT · 2208 days ago · 23 km deep · 82 km away
20. 1.7166 km WSW of Adak, AlaskaWed, Sep 9, 10:10 PM HADT · 2209 days ago · 20 km deep · 98 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak020c6f3rdn (also filed as av91127241). Read Sun, Sep 27, 2026, 8:24 PM UTC.