M1.9 earthquake 117 km WSW of Adak, Alaska

Magnitude

1.9 (ml), micro

Local time

Sat, Feb 20, 2021, 5:02 PM HAST

UTC

2021-02-21 03:02:08 UTC

Depth

27.0 km (16.8 mi), shallow

Epicenter

51.437° N, 178.187° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

30

After

1. 1.964 km SSW of Adak, AlaskaSat, Feb 20, 10:33 PM HAST · 2041 days ago · 27 km deep · 81 km away
2. 2.1111 km W of Adak, AlaskaSat, Feb 20, 11:28 PM HAST · 2041 days ago · 80 km deep · 35 km away
3. 1.7126 km WSW of Adak, AlaskaSun, Feb 21, 12:42 AM HAST · 2041 days ago · 13 km deep · 27 km away
4. 2.781 km WSW of Adak, AlaskaSun, Feb 21, 2:30 AM HAST · 2041 days ago · 79 km deep · 38 km away
5. 2.899 km WSW of Adak, AlaskaSun, Feb 21, 1:24 PM HAST · 2041 days ago · 34 km deep · 20 km away
6. 1.9134 km SW of Adak, AlaskaMon, Feb 22, 12:33 PM HAST · 2040 days ago · 41 km deep · 33 km away
7. 2.039 km W of Adak, AlaskaMon, Feb 22, 2:40 PM HAST · 2040 days ago · 98 km deep · 85 km away
8. 1.845 km SW of Adak, AlaskaMon, Feb 22, 7:25 PM HAST · 2039 days ago · 63 km deep · 77 km away
9. 1.8139 km WSW of Adak, AlaskaMon, Feb 22, 8:06 PM HAST · 2039 days ago · 25 km deep · 23 km away
10. 2.893 km WSW of Adak, AlaskaTue, Feb 23, 12:58 AM HAST · 2039 days ago · 35 km deep · 29 km away
11. 2.2169 km WSW of Adak, AlaskaTue, Feb 23, 2:28 AM HAST · 2039 days ago · 20 km deep · 53 km away
12. 1.9170 km W of Adak, AlaskaTue, Feb 23, 3:24 AM HAST · 2039 days ago · 5 km deep · 73 km away
13. 1.876 km SSW of Adak, AlaskaTue, Feb 23, 4:38 PM HAST · 2038 days ago · 36 km deep · 73 km away
14. 1.762 km SW of Adak, AlaskaTue, Feb 23, 6:09 PM HAST · 2038 days ago · 33 km deep · 61 km away
15. 1.587 km W of Adak, AlaskaWed, Feb 24, 1:29 AM HAST · 2038 days ago · 5 km deep · 51 km away
16. 2.0143 km WSW of Adak, AlaskaWed, Feb 24, 11:09 PM HAST · 2037 days ago · 25 km deep · 25 km away
17. 2.074 km WSW of Adak, AlaskaFri, Feb 26, 8:00 AM HAST · 2036 days ago · 66 km deep · 43 km away
18. 1.763 km SSW of Adak, AlaskaFri, Feb 26, 2:13 PM HAST · 2036 days ago · 27 km deep · 84 km away
19. 1.8128 km WSW of Adak, AlaskaSat, Feb 27, 1:22 AM HAST · 2035 days ago · 13 km deep · 28 km away
20. 2.0116 km WSW of Adak, AlaskaSat, Feb 27, 9:33 PM HAST · 2034 days ago · 85 km deep · 24 km away
21. 2.2191 km WSW of Adak, AlaskaSat, Feb 27, 10:58 PM HAST · 2034 days ago · 67 km deep · 76 km away
22. 5.4185 km WSW of Adak, AlaskaSun, Feb 28, 12:44 AM HAST · 2034 days ago · 22 km deep · 68 km away · felt by 2 · tsunami flag
23. 4.7211 km WSW of Adak, AlaskaTue, Mar 2, 2:21 PM HAST · 2032 days ago · 10 km deep · 95 km away
24. 2.655 km SSW of Adak, AlaskaWed, Mar 3, 1:08 PM HAST · 2031 days ago · 35 km deep · 84 km away
25. 3.4213 km WSW of Adak, AlaskaThu, Mar 4, 1:55 AM HAST · 2030 days ago · 10 km deep · 95 km away
26. 3.549 km SSW of Adak, AlaskaThu, Mar 4, 2:39 AM HAST · 2030 days ago · 38 km deep · 89 km away
27. 1.952 km SSW of Adak, AlaskaFri, Mar 5, 12:22 PM HAST · 2029 days ago · 37 km deep · 89 km away
28. 2.8113 km WSW of Adak, AlaskaSat, Mar 6, 8:55 PM HAST · 2027 days ago · 17 km deep · 6 km away
29. 2.0119 km W of Adak, AlaskaMon, Mar 8, 8:28 AM HAST · 2026 days ago · 9 km deep · 50 km away
30. 3.1123 km WSW of Adak, AlaskaMon, Mar 8, 1:52 PM HAST · 2026 days ago · 30 km deep · 19 km away
31. 1.6117 km W of Adak, AlaskaMon, Mar 8, 3:59 PM HAST · 2025 days ago · 15 km deep · 45 km away
32. 1.8122 km WSW of Adak, AlaskaMon, Mar 8, 6:31 PM HAST · 2025 days ago · 13 km deep · 20 km away
33. 1.9148 km SW of Adak, AlaskaMon, Mar 8, 9:15 PM HAST · 2025 days ago · 21 km deep · 37 km away
34. 1.9130 km WSW of Adak, AlaskaMon, Mar 8, 10:44 PM HAST · 2025 days ago · 45 km deep · 15 km away
35. 1.8152 km WSW of Adak, AlaskaTue, Mar 9, 8:20 PM HAST · 2024 days ago · 20 km deep · 39 km away
36. 1.5127 km WSW of Adak, AlaskaTue, Mar 9, 11:45 PM HAST · 2024 days ago · 18 km deep · 11 km away
37. 1.584 km W of Adak, AlaskaWed, Mar 10, 1:11 AM HAST · 2024 days ago · 8 km deep · 54 km away
38. 1.6103 km WSW of Adak, AlaskaWed, Mar 10, 1:12 AM HAST · 2024 days ago · 5 km deep · 16 km away
39. 1.8133 km WSW of Adak, AlaskaWed, Mar 10, 2:10 AM HAST · 2024 days ago · 36 km deep · 15 km away
40. 1.7176 km W of Adak, AlaskaWed, Mar 10, 3:33 AM HAST · 2024 days ago · 14 km deep · 77 km away
41. 2.1179 km WSW of Adak, AlaskaWed, Mar 10, 11:00 AM HAST · 2024 days ago · 20 km deep · 62 km away
42. 3.3190 km WSW of Adak, AlaskaWed, Mar 10, 3:12 PM HAST · 2023 days ago · 68 km deep · 80 km away
43. 1.5133 km W of Adak, AlaskaThu, Mar 11, 6:13 AM HAST · 2023 days ago · 7 km deep · 35 km away
44. 1.853 km SSW of Adak, AlaskaFri, Mar 12, 12:33 AM HAST · 2022 days ago · 24 km deep · 91 km away
45. 2.893 km SW of Adak, AlaskaFri, Mar 12, 1:09 PM HAST · 2022 days ago · 39 km deep · 39 km away
46. 1.7111 km WSW of Adak, AlaskaFri, Mar 12, 4:21 PM HAST · 2021 days ago · 13 km deep · 13 km away
47. 2.074 km SSW of Adak, AlaskaFri, Mar 12, 7:22 PM HAST · 2021 days ago · 51 km deep · 73 km away
48. 1.871 km WSW of Adak, AlaskaSat, Mar 13, 1:38 PM HAST · 2021 days ago · 68 km deep · 49 km away
49. 3.3Andreanof Islands, Aleutian Islands, AlaskaSun, Mar 14, 4:18 AM HADT · 2020 days ago · 35 km deep · 97 km away
50. 3.0148 km SW of Adak, AlaskaMon, Mar 15, 2:14 AM HADT · 2019 days ago · 10 km deep · 43 km away
51. 2.567 km SSW of Adak, AlaskaMon, Mar 15, 9:36 AM HADT · 2019 days ago · 35 km deep · 88 km away
52. 1.633 km W of Adak, AlaskaMon, Mar 15, 3:58 PM HADT · 2019 days ago · 10 km deep · 89 km away
53. 2.1140 km WSW of Adak, AlaskaMon, Mar 15, 7:59 PM HADT · 2018 days ago · 21 km deep · 27 km away
54. 1.776 km WSW of Adak, AlaskaMon, Mar 15, 10:27 PM HADT · 2018 days ago · 13 km deep · 44 km away
55. 1.9133 km WSW of Adak, AlaskaTue, Mar 16, 4:29 AM HADT · 2018 days ago · 4 km deep · 28 km away
56. 1.555 km SSW of Adak, AlaskaTue, Mar 16, 6:52 AM HADT · 2018 days ago · 36 km deep · 77 km away
57. 1.9130 km WSW of Adak, AlaskaTue, Mar 16, 11:11 AM HADT · 2018 days ago · 58 km deep · 29 km away
58. 2.2188 km WSW of Adak, AlaskaWed, Mar 17, 7:23 AM HADT · 2017 days ago · 6 km deep · 71 km away
59. 1.758 km SSW of Adak, AlaskaWed, Mar 17, 9:31 AM HADT · 2017 days ago · 30 km deep · 78 km away
60. 1.992 km WSW of Adak, AlaskaWed, Mar 17, 12:19 PM HADT · 2017 days ago · 71 km deep · 28 km away

The first 60 of 130.

Before

1. 2.4109 km W of Adak, AlaskaSat, Feb 20, 4:41 AM HAST · 2042 days ago · 188 km deep · 29 km away
2. 1.856 km SW of Adak, AlaskaSat, Feb 20, 4:11 AM HAST · 2042 days ago · 30 km deep · 66 km away
3. 2.9213 km WSW of Adak, AlaskaSat, Feb 20, 12:22 AM HAST · 2042 days ago · 13 km deep · 95 km away
4. 1.8179 km WSW of Adak, AlaskaFri, Feb 19, 6:42 PM HAST · 2042 days ago · 13 km deep · 61 km away
5. 4.1211 km WSW of Adak, AlaskaFri, Feb 19, 6:14 PM HAST · 2042 days ago · 35 km deep · 94 km away
6. 2.1204 km WSW of Adak, AlaskaFri, Feb 19, 3:44 PM HAST · 2042 days ago · 8 km deep · 87 km away
7. 3.9180 km WSW of Adak, AlaskaFri, Feb 19, 1:03 PM HAST · 2043 days ago · 37 km deep · 63 km away
8. 3.0208 km WSW of Adak, AlaskaFri, Feb 19, 11:38 AM HAST · 2043 days ago · 16 km deep · 90 km away
9. 3.6136 km WSW of Adak, AlaskaFri, Feb 19, 9:36 AM HAST · 2043 days ago · 19 km deep · 20 km away
10. 4.171 km SSW of Adak, AlaskaFri, Feb 19, 5:33 AM HAST · 2043 days ago · 35 km deep · 94 km away · felt by 1
11. 3.5213 km WSW of Adak, AlaskaFri, Feb 19, 2:18 AM HAST · 2043 days ago · 10 km deep · 98 km away
12. 2.2206 km WSW of Adak, AlaskaFri, Feb 19, 2:13 AM HAST · 2043 days ago · 7 km deep · 89 km away
13. 4.6199 km WSW of Adak, AlaskaThu, Feb 18, 11:19 PM HAST · 2043 days ago · 35 km deep · 81 km away · felt by 1
14. 5.6209 km WSW of Adak, AlaskaThu, Feb 18, 11:11 PM HAST · 2043 days ago · 19 km deep · 92 km away · tsunami flag
15. 2.260 km W of Adak, AlaskaThu, Feb 18, 9:34 PM HAST · 2043 days ago · 103 km deep · 76 km away
16. 3.8212 km WSW of Adak, AlaskaThu, Feb 18, 8:31 PM HAST · 2043 days ago · 31 km deep · 95 km away
17. 2.748 km WSW of Adak, AlaskaThu, Feb 18, 8:40 AM HAST · 2044 days ago · 81 km deep · 70 km away
18. 2.5193 km WSW of Adak, AlaskaWed, Feb 17, 8:35 PM HAST · 2044 days ago · 27 km deep · 76 km away
19. 2.5122 km WSW of Adak, AlaskaWed, Feb 17, 3:08 PM HAST · 2044 days ago · 75 km deep · 15 km away
20. 1.9126 km WSW of Adak, AlaskaWed, Feb 17, 6:54 AM HAST · 2045 days ago · 26 km deep · 13 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0212e1qsk3. Read Thu, Sep 24, 2026, 12:34 PM UTC.