M1.8 earthquake 96 km WSW of Adak, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Sat, Jul 17, 2021, 7:40 PM HADT

UTC

2021-07-18 04:40:46 UTC

Depth

61.6 km (38.3 mi), shallow

Epicenter

51.440° N, 177.846° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

28

After

1. 1.9117 km WSW of Adak, AlaskaSat, Jul 17, 10:53 PM HADT · 1901 days ago · 18 km deep · 26 km away
2. 1.6123 km WSW of Adak, AlaskaSun, Jul 18, 7:25 AM HADT · 1901 days ago · 26 km deep · 29 km away
3. 1.849 km SW of Adak, AlaskaMon, Jul 19, 3:51 AM HADT · 1900 days ago · 28 km deep · 55 km away
4. 1.8129 km WSW of Adak, AlaskaMon, Jul 19, 7:58 AM HADT · 1900 days ago · 6 km deep · 47 km away
5. 1.617 km WSW of Adak, AlaskaMon, Jul 19, 3:28 PM HADT · 1899 days ago · 74 km deep · 80 km away
6. 2.246 km S of Adak, AlaskaMon, Jul 19, 11:36 PM HADT · 1899 days ago · 29 km deep · 87 km away
7. 1.9Andreanof Islands, Aleutian Islands, AlaskaTue, Jul 20, 1:08 PM HADT · 1899 days ago · 18 km deep · 59 km away
8. 1.8124 km WSW of Adak, AlaskaTue, Jul 20, 9:43 PM HADT · 1898 days ago · 13 km deep · 28 km away
9. 1.927 km SSW of Adak, AlaskaTue, Jul 20, 11:24 PM HADT · 1898 days ago · 63 km deep · 78 km away
10. 1.586 km SW of Adak, AlaskaWed, Jul 21, 1:14 AM HADT · 1898 days ago · 34 km deep · 14 km away
11. 4.383 km W of Adak, AlaskaWed, Jul 21, 2:03 AM HADT · 1898 days ago · 8 km deep · 56 km away
12. 2.2110 km WSW of Adak, AlaskaWed, Jul 21, 2:29 AM HADT · 1898 days ago · 13 km deep · 17 km away
13. 1.531 km SSE of Adak, AlaskaWed, Jul 21, 6:15 AM HADT · 1898 days ago · 59 km deep · 94 km away
14. 1.8110 km SW of Adak, AlaskaWed, Jul 21, 2:05 PM HADT · 1897 days ago · 19 km deep · 31 km away
15. 2.889 km SW of Adak, AlaskaThu, Jul 22, 12:22 PM HADT · 1897 days ago · 27 km deep · 35 km away
16. 1.553 km S of Adak, AlaskaFri, Jul 23, 6:43 PM HADT · 1895 days ago · 25 km deep · 85 km away
17. 2.267 km S of Adak, AlaskaSat, Jul 24, 4:42 AM HADT · 1895 days ago · 21 km deep · 92 km away
18. 3.662 km S of Adak, AlaskaSat, Jul 24, 6:10 AM HADT · 1895 days ago · 55 km deep · 92 km away
19. 2.8135 km WSW of Adak, AlaskaSat, Jul 24, 7:01 AM HADT · 1895 days ago · 25 km deep · 39 km away
20. 1.8113 km WSW of Adak, AlaskaSat, Jul 24, 7:14 AM HADT · 1895 days ago · 48 km deep · 19 km away
21. 2.2128 km WSW of Adak, AlaskaSat, Jul 24, 8:59 AM HADT · 1895 days ago · 35 km deep · 32 km away
22. 2.370 km S of Adak, AlaskaSat, Jul 24, 2:25 PM HADT · 1894 days ago · 21 km deep · 93 km away
23. 2.063 km WSW of Adak, AlaskaSat, Jul 24, 3:27 PM HADT · 1894 days ago · 65 km deep · 33 km away
24. 3.869 km S of Adak, AlaskaSun, Jul 25, 3:18 AM HADT · 1894 days ago · 35 km deep · 96 km away
25. 2.776 km S of Adak, AlaskaSun, Jul 25, 3:25 AM HADT · 1894 days ago · 20 km deep · 94 km away
26. 2.172 km S of Adak, AlaskaSun, Jul 25, 4:15 AM HADT · 1894 days ago · 26 km deep · 92 km away
27. 1.6158 km WSW of Adak, AlaskaSun, Jul 25, 1:39 PM HADT · 1893 days ago · 56 km deep · 67 km away
28. 1.687 km WSW of Adak, AlaskaSun, Jul 25, 8:33 PM HADT · 1893 days ago · 62 km deep · 9 km away
29. 4.087 km S of Adak, AlaskaMon, Jul 26, 9:08 AM HADT · 1893 days ago · 10 km deep · 97 km away
30. 1.966 km WSW of Adak, AlaskaMon, Jul 26, 9:47 AM HADT · 1893 days ago · 75 km deep · 37 km away
31. 2.045 km WSW of Adak, AlaskaMon, Jul 26, 12:50 PM HADT · 1893 days ago · 70 km deep · 51 km away
32. 1.6145 km WSW of Adak, AlaskaMon, Jul 26, 6:15 PM HADT · 1892 days ago · 69 km deep · 57 km away
33. 2.7141 km SW of Adak, AlaskaMon, Jul 26, 9:44 PM HADT · 1892 days ago · 35 km deep · 46 km away
34. 1.8183 km WSW of Adak, AlaskaTue, Jul 27, 2:17 AM HADT · 1892 days ago · 20 km deep · 87 km away
35. 1.570 km S of Adak, AlaskaTue, Jul 27, 6:12 AM HADT · 1892 days ago · 21 km deep · 91 km away
36. 3.035 km S of Adak, AlaskaTue, Jul 27, 3:00 PM HADT · 1891 days ago · 46 km deep · 90 km away
37. 4.0Andreanof Islands, Aleutian Islands, AlaskaWed, Jul 28, 8:31 AM HADT · 1891 days ago · 38 km deep · 19 km away
38. 1.7117 km WSW of Adak, AlaskaWed, Jul 28, 11:12 AM HADT · 1891 days ago · 38 km deep · 21 km away
39. 2.7123 km WSW of Adak, AlaskaWed, Jul 28, 11:30 AM HADT · 1891 days ago · 29 km deep · 28 km away
40. 3.044 km SSW of Adak, AlaskaWed, Jul 28, 5:06 PM HADT · 1890 days ago · 70 km deep · 65 km away
41. 1.5131 km WSW of Adak, AlaskaWed, Jul 28, 8:23 PM HADT · 1890 days ago · 26 km deep · 35 km away
42. 1.897 km WSW of Adak, AlaskaWed, Jul 28, 10:15 PM HADT · 1890 days ago · 62 km deep · 4 km away
43. 1.550 km WSW of Adak, AlaskaThu, Jul 29, 12:25 AM HADT · 1890 days ago · 74 km deep · 50 km away
44. 1.781 km SW of Adak, AlaskaThu, Jul 29, 1:29 AM HADT · 1890 days ago · 25 km deep · 26 km away
45. 1.643 km S of Adak, AlaskaThu, Jul 29, 11:06 AM HADT · 1890 days ago · 26 km deep · 87 km away
46. 1.767 km W of Adak, AlaskaThu, Jul 29, 2:09 PM HADT · 1889 days ago · 93 km deep · 47 km away
47. 1.519 km WNW of Adak, AlaskaFri, Jul 30, 1:16 AM HADT · 1889 days ago · 86 km deep · 86 km away
48. 1.8148 km WSW of Adak, AlaskaFri, Jul 30, 4:30 AM HADT · 1889 days ago · 24 km deep · 51 km away
49. 1.568 km SSW of Adak, AlaskaFri, Jul 30, 9:05 AM HADT · 1889 days ago · 42 km deep · 52 km away
50. 1.8Andreanof Islands, Aleutian Islands, AlaskaSat, Jul 31, 6:02 AM HADT · 1888 days ago · 18 km deep · 14 km away
51. 1.6117 km WSW of Adak, AlaskaSat, Jul 31, 3:42 PM HADT · 1887 days ago · 47 km deep · 24 km away
52. 1.638 km SW of Adak, AlaskaSat, Jul 31, 5:16 PM HADT · 1887 days ago · 27 km deep · 61 km away
53. 1.897 km S of Adak, AlaskaSat, Jul 31, 10:15 PM HADT · 1887 days ago · 26 km deep · 90 km away
54. 1.749 km S of Adak, AlaskaSun, Aug 1, 7:13 AM HADT · 1887 days ago · 30 km deep · 89 km away
55. 1.773 km W of Adak, AlaskaSun, Aug 1, 7:21 AM HADT · 1887 days ago · 73 km deep · 37 km away
56. 4.0123 km WSW of Adak, AlaskaSun, Aug 1, 8:28 AM HADT · 1887 days ago · 47 km deep · 26 km away
57. 2.5168 km SSW of Adak, AlaskaSun, Aug 1, 12:15 PM HADT · 1887 days ago · 10 km deep · 97 km away
58. 1.8159 km WSW of Adak, AlaskaSun, Aug 1, 7:35 PM HADT · 1886 days ago · 25 km deep · 63 km away
59. 3.244 km SSE of Adak, AlaskaMon, Aug 2, 12:36 AM HADT · 1886 days ago · 44 km deep · 99 km away
60. 1.560 km SSW of Adak, AlaskaMon, Aug 2, 11:41 AM HADT · 1886 days ago · 36 km deep · 54 km away

The first 60 of at least 199.

Before

1. 1.897 km WSW of Adak, AlaskaSat, Jul 17, 2:14 AM HADT · 1902 days ago · 48 km deep · 2 km away
2. 1.9125 km WSW of Adak, AlaskaSat, Jul 17, 2:05 AM HADT · 1902 days ago · 25 km deep · 31 km away
3. 2.7108 km WSW of Adak, AlaskaFri, Jul 16, 6:08 PM HADT · 1902 days ago · 26 km deep · 15 km away
4. 1.5118 km WSW of Adak, AlaskaFri, Jul 16, 4:44 PM HADT · 1902 days ago · 32 km deep · 23 km away
5. 1.5151 km W of Adak, AlaskaFri, Jul 16, 3:26 PM HADT · 1902 days ago · 12 km deep · 71 km away
6. 1.5111 km SW of Adak, AlaskaFri, Jul 16, 12:26 AM HADT · 1903 days ago · 25 km deep · 33 km away
7. 2.012 km W of Adak, AlaskaThu, Jul 15, 10:36 PM HADT · 1903 days ago · 81 km deep · 87 km away
8. 1.7159 km WSW of Adak, AlaskaThu, Jul 15, 2:02 AM HADT · 1904 days ago · 20 km deep · 62 km away
9. 1.7112 km WSW of Adak, AlaskaWed, Jul 14, 8:11 AM HADT · 1905 days ago · 30 km deep · 19 km away
10. 2.678 km WSW of Adak, AlaskaWed, Jul 14, 3:52 AM HADT · 1905 days ago · 71 km deep · 24 km away
11. 1.780 km SSW of Adak, AlaskaTue, Jul 13, 9:22 AM HADT · 1906 days ago · 26 km deep · 48 km away
12. 2.7135 km SW of Adak, AlaskaTue, Jul 13, 7:15 AM HADT · 1906 days ago · 26 km deep · 43 km away
13. 1.5132 km W of Adak, AlaskaTue, Jul 13, 6:34 AM HADT · 1906 days ago · 110 km deep · 67 km away
14. 1.6175 km W of Adak, AlaskaTue, Jul 13, 6:19 AM HADT · 1906 days ago · 84 km deep · 96 km away
15. 1.7129 km WSW of Adak, AlaskaMon, Jul 12, 9:13 PM HADT · 1906 days ago · 5 km deep · 48 km away
16. 2.595 km WSW of Adak, AlaskaMon, Jul 12, 9:07 PM HADT · 1906 days ago · 73 km deep · 21 km away
17. 1.6155 km WSW of Adak, AlaskaSun, Jul 11, 9:43 PM HADT · 1907 days ago · 24 km deep · 58 km away
18. 1.5142 km SW of Adak, AlaskaSun, Jul 11, 11:52 AM HADT · 1908 days ago · 42 km deep · 52 km away
19. 2.2156 km WSW of Adak, AlaskaSun, Jul 11, 3:13 AM HADT · 1908 days ago · 25 km deep · 60 km away
20. 1.9123 km WSW of Adak, AlaskaSat, Jul 10, 8:17 PM HADT · 1908 days ago · 10 km deep · 40 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021956kgwd. Read Thu, Oct 1, 2026, 9:47 AM UTC.