M1.8 earthquake 82 km W of Adak, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Sat, Oct 27, 2018, 8:46 PM HADT

UTC

2018-10-28 05:46:13 UTC

Depth

0.1 km (0.0 mi), shallow

Epicenter

51.887° N, 177.829° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.5 km horizontally, 0.7 km in depth

Magnitude uncertainty

±0.17

Depth from

From location

Station coverage gap

169°

Stations used

10

After

1. 4.0129 km WSW of Adak, AlaskaSun, Oct 28, 3:54 AM HADT · 2895 days ago · 5 km deep · 60 km away
2. 1.9124 km W of Adak, AlaskaSun, Oct 28, 4:19 AM HADT · 2895 days ago · 13 km deep · 46 km away
3. 1.9128 km W of Adak, AlaskaSun, Oct 28, 5:00 AM HADT · 2895 days ago · 8 km deep · 49 km away
4. 1.8117 km WSW of Adak, AlaskaSun, Oct 28, 8:06 AM HADT · 2895 days ago · 25 km deep · 53 km away
5. 1.7125 km W of Adak, AlaskaSun, Oct 28, 4:06 PM HADT · 2895 days ago · 16 km deep · 44 km away
6. 1.8122 km WSW of Adak, AlaskaSun, Oct 28, 7:50 PM HADT · 2895 days ago · 13 km deep · 45 km away
7. 2.1Andreanof Islands, Aleutian Islands, AlaskaSun, Oct 28, 8:47 PM HADT · 2895 days ago · 71 km deep · 87 km away
8. 1.5125 km WSW of Adak, AlaskaMon, Oct 29, 12:45 AM HADT · 2894 days ago · 21 km deep · 48 km away
9. 1.6126 km WSW of Adak, AlaskaMon, Oct 29, 2:00 AM HADT · 2894 days ago · 5 km deep · 50 km away
10. 1.7125 km W of Adak, AlaskaMon, Oct 29, 5:05 AM HADT · 2894 days ago · 23 km deep · 45 km away
11. 1.6124 km W of Adak, AlaskaMon, Oct 29, 9:06 AM HADT · 2894 days ago · 12 km deep · 47 km away
12. 1.8124 km W of Adak, AlaskaMon, Oct 29, 10:31 AM HADT · 2894 days ago · 10 km deep · 46 km away
13. 1.7124 km W of Adak, AlaskaMon, Oct 29, 10:49 AM HADT · 2894 days ago · 13 km deep · 46 km away
14. 1.7125 km W of Adak, AlaskaMon, Oct 29, 11:09 AM HADT · 2894 days ago · 7 km deep · 47 km away
15. 2.1125 km WSW of Adak, AlaskaMon, Oct 29, 12:26 PM HADT · 2894 days ago · 8 km deep · 48 km away
16. 1.950 km SW of Adak, AlaskaMon, Oct 29, 5:41 PM HADT · 2894 days ago · 23 km deep · 61 km away
17. 2.5104 km WSW of Adak, AlaskaMon, Oct 29, 5:56 PM HADT · 2894 days ago · 41 km deep · 57 km away
18. 2.3125 km WSW of Adak, AlaskaMon, Oct 29, 7:54 PM HADT · 2894 days ago · 9 km deep · 53 km away
19. 1.9125 km WSW of Adak, AlaskaMon, Oct 29, 9:22 PM HADT · 2894 days ago · 9 km deep · 49 km away
20. 1.7102 km SW of Adak, AlaskaMon, Oct 29, 10:13 PM HADT · 2894 days ago · 50 km deep · 61 km away
21. 2.6126 km WSW of Adak, AlaskaMon, Oct 29, 10:31 PM HADT · 2894 days ago · 17 km deep · 51 km away
22. 1.6Andreanof Islands, Aleutian Islands, AlaskaMon, Oct 29, 11:54 PM HADT · 2894 days ago · 63 km deep · 53 km away
23. 1.6124 km WSW of Adak, AlaskaTue, Oct 30, 12:16 AM HADT · 2894 days ago · 26 km deep · 53 km away
24. 1.7124 km WSW of Adak, AlaskaTue, Oct 30, 2:16 AM HADT · 2893 days ago · 6 km deep · 49 km away
25. 2.390 km WSW of Adak, AlaskaTue, Oct 30, 4:55 AM HADT · 2893 days ago · 69 km deep · 28 km away
26. 1.8147 km WSW of Adak, AlaskaTue, Oct 30, 5:07 AM HADT · 2893 days ago · 22 km deep · 81 km away
27. 1.563 km SSW of Adak, AlaskaTue, Oct 30, 5:28 AM HADT · 2893 days ago · 49 km deep · 80 km away
28. 1.7139 km WSW of Adak, AlaskaTue, Oct 30, 5:49 PM HADT · 2893 days ago · 49 km deep · 69 km away
29. 1.8118 km WSW of Adak, AlaskaTue, Oct 30, 7:36 PM HADT · 2893 days ago · 69 km deep · 42 km away
30. 1.59 km N of Adak, AlaskaWed, Oct 31, 2:17 AM HADT · 2892 days ago · 84 km deep · 83 km away
31. 1.685 km WSW of Adak, AlaskaWed, Oct 31, 4:21 PM HADT · 2892 days ago · 40 km deep · 35 km away
32. 2.5123 km WSW of Adak, AlaskaWed, Oct 31, 6:28 PM HADT · 2892 days ago · 18 km deep · 56 km away
33. 1.9124 km W of Adak, AlaskaWed, Oct 31, 8:03 PM HADT · 2892 days ago · 17 km deep · 45 km away
34. 1.7125 km WSW of Adak, AlaskaWed, Oct 31, 10:20 PM HADT · 2892 days ago · 9 km deep · 48 km away
35. 2.15 km NE of Adak, AlaskaThu, Nov 1, 1:49 AM HADT · 2891 days ago · 81 km deep · 87 km away
36. 1.5128 km W of Adak, AlaskaThu, Nov 1, 2:48 AM HADT · 2891 days ago · 15 km deep · 50 km away
37. 2.2125 km WSW of Adak, AlaskaThu, Nov 1, 6:15 AM HADT · 2891 days ago · 7 km deep · 47 km away
38. 2.269 km WSW of Adak, AlaskaThu, Nov 1, 6:13 PM HADT · 2891 days ago · 48 km deep · 29 km away
39. 2.390 km WSW of Adak, AlaskaFri, Nov 2, 12:45 AM HADT · 2890 days ago · 34 km deep · 45 km away
40. 2.8169 km WSW of Adak, AlaskaFri, Nov 2, 5:48 AM HADT · 2890 days ago · 30 km deep · 98 km away
41. 1.6103 km WSW of Adak, AlaskaFri, Nov 2, 6:22 AM HADT · 2890 days ago · 34 km deep · 46 km away
42. 1.9133 km WSW of Adak, AlaskaSat, Nov 3, 3:09 AM HADT · 2889 days ago · 12 km deep · 72 km away
43. 1.688 km WSW of Adak, AlaskaSat, Nov 3, 5:14 AM HADT · 2889 days ago · 27 km deep · 35 km away
44. 2.016 km NNW of Adak, AlaskaSat, Nov 3, 9:09 AM HADT · 2889 days ago · 84 km deep · 76 km away
45. 1.6122 km W of Adak, AlaskaSat, Nov 3, 12:04 PM HADT · 2889 days ago · 13 km deep · 41 km away
46. 1.8100 km WSW of Adak, AlaskaSat, Nov 3, 5:37 PM HADT · 2889 days ago · 47 km deep · 49 km away
47. 1.668 km SW of Adak, AlaskaSat, Nov 3, 7:43 PM HADT · 2889 days ago · 54 km deep · 57 km away
48. 2.4118 km WSW of Adak, AlaskaSat, Nov 3, 11:15 PM HADT · 2889 days ago · 27 km deep · 50 km away
49. 1.8108 km SW of Adak, AlaskaSun, Nov 4, 5:58 AM HAST · 2888 days ago · 43 km deep · 71 km away
50. 2.266 km W of Adak, AlaskaSun, Nov 4, 1:56 PM HAST · 2888 days ago · 74 km deep · 16 km away
51. 1.894 km WSW of Adak, AlaskaMon, Nov 5, 2:07 AM HAST · 2887 days ago · 43 km deep · 36 km away
52. 2.793 km SW of Adak, AlaskaMon, Nov 5, 5:06 PM HAST · 2887 days ago · 35 km deep · 60 km away
53. 2.075 km SW of Adak, AlaskaMon, Nov 5, 7:35 PM HAST · 2887 days ago · 39 km deep · 57 km away
54. 2.131 km S of Adak, AlaskaTue, Nov 6, 2:47 AM HAST · 2886 days ago · 44 km deep · 83 km away
55. 2.414 km NNW of Adak, AlaskaTue, Nov 6, 5:50 AM HAST · 2886 days ago · 102 km deep · 75 km away
56. 1.9125 km WSW of Adak, AlaskaTue, Nov 6, 7:56 PM HAST · 2886 days ago · 35 km deep · 59 km away
57. 1.942 km NW of Adak, AlaskaWed, Nov 7, 6:53 PM HAST · 2885 days ago · 78 km deep · 64 km away
58. 2.7106 km WSW of Adak, AlaskaWed, Nov 7, 10:28 PM HAST · 2885 days ago · 58 km deep · 50 km away
59. 2.249 km S of Adak, AlaskaThu, Nov 8, 12:28 AM HAST · 2884 days ago · 35 km deep · 97 km away
60. 1.940 km SSW of Adak, AlaskaThu, Nov 8, 1:36 AM HAST · 2884 days ago · 50 km deep · 80 km away

The first 60 of 185.

Before

1. 2.0127 km W of Adak, AlaskaSat, Oct 27, 1:25 PM HADT · 2896 days ago · 13 km deep · 49 km away
2. 1.864 km W of Adak, AlaskaSat, Oct 27, 3:59 AM HADT · 2896 days ago · 13 km deep · 18 km away
3. 1.7125 km W of Adak, AlaskaSat, Oct 27, 3:30 AM HADT · 2896 days ago · 21 km deep · 47 km away
4. 2.4119 km SW of Adak, AlaskaSat, Oct 27, 1:12 AM HADT · 2896 days ago · 40 km deep · 73 km away
5. 1.8137 km W of Adak, AlaskaFri, Oct 26, 9:14 AM HADT · 2897 days ago · 85 km deep · 56 km away
6. 1.627 km S of Adak, AlaskaFri, Oct 26, 6:42 AM HADT · 2897 days ago · 43 km deep · 82 km away
7. 1.881 km WSW of Adak, AlaskaFri, Oct 26, 6:28 AM HADT · 2897 days ago · 40 km deep · 30 km away
8. 1.8141 km WSW of Adak, AlaskaFri, Oct 26, 5:56 AM HADT · 2897 days ago · 22 km deep · 67 km away
9. 1.972 km SW of Adak, AlaskaFri, Oct 26, 1:58 AM HADT · 2897 days ago · 16 km deep · 57 km away
10. 2.3125 km WSW of Adak, AlaskaThu, Oct 25, 9:42 PM HADT · 2898 days ago · 13 km deep · 48 km away
11. 3.0127 km WSW of Adak, AlaskaThu, Oct 25, 10:45 AM HADT · 2898 days ago · 12 km deep · 58 km away
12. 1.868 km SSW of Adak, AlaskaWed, Oct 24, 9:08 AM HADT · 2899 days ago · 25 km deep · 82 km away
13. 1.683 km W of Adak, AlaskaTue, Oct 23, 7:50 AM HADT · 2900 days ago · 7 km deep · 4 km away
14. 1.7125 km W of Adak, AlaskaMon, Oct 22, 9:57 PM HADT · 2901 days ago · 19 km deep · 45 km away
15. 1.683 km WSW of Adak, AlaskaMon, Oct 22, 5:38 PM HADT · 2901 days ago · 13 km deep · 40 km away
16. 1.636 km WNW of Adak, AlaskaMon, Oct 22, 12:49 PM HADT · 2901 days ago · 77 km deep · 53 km away
17. 2.6111 km SW of Adak, AlaskaMon, Oct 22, 12:30 PM HADT · 2901 days ago · 29 km deep · 73 km away
18. 1.823 km WSW of Adak, AlaskaMon, Oct 22, 2:50 AM HADT · 2901 days ago · 73 km deep · 61 km away
19. 1.9122 km SW of Adak, AlaskaMon, Oct 22, 1:31 AM HADT · 2901 days ago · 51 km deep · 73 km away
20. 1.6128 km W of Adak, AlaskaSun, Oct 21, 7:32 PM HADT · 2902 days ago · 15 km deep · 49 km away

From the USGS Earthquake Hazards Program and its partner networks, event av61805486. Read Thu, Oct 1, 2026, 8:50 PM UTC.