M1.8 earthquake 126 km WSW of Adak, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Tue, Aug 21, 2018, 1:25 PM HADT

UTC

2018-08-21 22:25:26 UTC

Depth

12.4 km (7.7 mi), shallow

Epicenter

51.665° N, 178.439° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

11

After

1. 2.0104 km SW of Adak, AlaskaTue, Aug 21, 11:42 PM HADT · 2963 days ago · 21 km deep · 64 km away
2. 2.299 km SW of Adak, AlaskaWed, Aug 22, 12:23 AM HADT · 2963 days ago · 22 km deep · 64 km away
3. 2.0130 km WSW of Adak, AlaskaWed, Aug 22, 7:03 AM HADT · 2963 days ago · 5 km deep · 3 km away
4. 2.0106 km SW of Adak, AlaskaWed, Aug 22, 7:10 AM HADT · 2963 days ago · 26 km deep · 70 km away
5. 1.7102 km SW of Adak, AlaskaWed, Aug 22, 7:50 AM HADT · 2963 days ago · 21 km deep · 67 km away
6. 1.9109 km SW of Adak, AlaskaWed, Aug 22, 2:44 PM HADT · 2963 days ago · 39 km deep · 54 km away
7. 2.299 km SW of Adak, AlaskaWed, Aug 22, 3:22 PM HADT · 2963 days ago · 25 km deep · 68 km away
8. 2.4118 km SW of Adak, AlaskaWed, Aug 22, 3:22 PM HADT · 2963 days ago · 29 km deep · 74 km away
9. 3.799 km SW of Adak, AlaskaWed, Aug 22, 3:27 PM HADT · 2963 days ago · 34 km deep · 66 km away
10. 6.397 km SW of Adak, AlaskaWed, Aug 22, 6:35 PM HADT · 2962 days ago · 20 km deep · 59 km away · tsunami flag
11. 3.1102 km SW of Adak, AlaskaWed, Aug 22, 6:40 PM HADT · 2962 days ago · 17 km deep · 85 km away
12. 2.991 km SW of Adak, AlaskaWed, Aug 22, 6:42 PM HADT · 2962 days ago · 31 km deep · 81 km away
13. 2.694 km SW of Adak, AlaskaWed, Aug 22, 6:43 PM HADT · 2962 days ago · 27 km deep · 76 km away
14. 2.5101 km SW of Adak, AlaskaWed, Aug 22, 6:46 PM HADT · 2962 days ago · 35 km deep · 70 km away
15. 2.1128 km WSW of Adak, AlaskaWed, Aug 22, 7:10 PM HADT · 2962 days ago · 16 km deep · 6 km away
16. 1.996 km SW of Adak, AlaskaWed, Aug 22, 7:21 PM HADT · 2962 days ago · 47 km deep · 69 km away
17. 2.496 km SW of Adak, AlaskaWed, Aug 22, 7:22 PM HADT · 2962 days ago · 42 km deep · 69 km away
18. 3.0103 km SW of Adak, AlaskaWed, Aug 22, 7:29 PM HADT · 2962 days ago · 31 km deep · 68 km away
19. 2.395 km SW of Adak, AlaskaWed, Aug 22, 7:37 PM HADT · 2962 days ago · 38 km deep · 64 km away
20. 2.7100 km SW of Adak, AlaskaWed, Aug 22, 7:52 PM HADT · 2962 days ago · 33 km deep · 74 km away
21. 2.192 km SW of Adak, AlaskaWed, Aug 22, 7:55 PM HADT · 2962 days ago · 32 km deep · 78 km away
22. 2.389 km SW of Adak, AlaskaWed, Aug 22, 8:03 PM HADT · 2962 days ago · 46 km deep · 71 km away
23. 2.294 km SW of Adak, AlaskaWed, Aug 22, 8:22 PM HADT · 2962 days ago · 21 km deep · 75 km away
24. 1.9101 km SW of Adak, AlaskaWed, Aug 22, 8:27 PM HADT · 2962 days ago · 26 km deep · 67 km away
25. 2.899 km SW of Adak, AlaskaWed, Aug 22, 8:37 PM HADT · 2962 days ago · 30 km deep · 75 km away
26. 2.1Andreanof Islands, Aleutian Islands, AlaskaWed, Aug 22, 8:58 PM HADT · 2962 days ago · 25 km deep · 81 km away
27. 2.295 km SW of Adak, AlaskaWed, Aug 22, 9:09 PM HADT · 2962 days ago · 34 km deep · 71 km away
28. 2.295 km SW of Adak, AlaskaWed, Aug 22, 9:17 PM HADT · 2962 days ago · 25 km deep · 71 km away
29. 2.397 km SW of Adak, AlaskaWed, Aug 22, 10:23 PM HADT · 2962 days ago · 23 km deep · 68 km away
30. 2.297 km SW of Adak, AlaskaWed, Aug 22, 10:38 PM HADT · 2962 days ago · 22 km deep · 66 km away
31. 2.499 km SW of Adak, AlaskaWed, Aug 22, 11:23 PM HADT · 2962 days ago · 23 km deep · 69 km away
32. 2.195 km SW of Adak, AlaskaThu, Aug 23, 12:14 AM HADT · 2962 days ago · 38 km deep · 66 km away
33. 1.9113 km WSW of Adak, AlaskaThu, Aug 23, 12:24 AM HADT · 2962 days ago · 50 km deep · 48 km away
34. 3.7127 km WSW of Adak, AlaskaThu, Aug 23, 12:30 AM HADT · 2962 days ago · 10 km deep · 23 km away
35. 2.5182 km WSW of Adak, AlaskaThu, Aug 23, 7:48 AM HADT · 2962 days ago · 35 km deep · 59 km away
36. 2.2114 km WSW of Adak, AlaskaThu, Aug 23, 8:55 AM HADT · 2962 days ago · 41 km deep · 45 km away
37. 1.7106 km SW of Adak, AlaskaThu, Aug 23, 10:28 AM HADT · 2962 days ago · 33 km deep · 59 km away
38. 2.296 km SW of Adak, AlaskaThu, Aug 23, 11:30 AM HADT · 2962 days ago · 23 km deep · 71 km away
39. 1.8126 km W of Adak, AlaskaThu, Aug 23, 11:43 AM HADT · 2962 days ago · 8 km deep · 12 km away
40. 2.788 km WSW of Adak, AlaskaThu, Aug 23, 5:26 PM HADT · 2961 days ago · 32 km deep · 50 km away
41. 1.889 km SW of Adak, AlaskaThu, Aug 23, 6:47 PM HADT · 2961 days ago · 57 km deep · 69 km away
42. 1.696 km SW of Adak, AlaskaThu, Aug 23, 8:48 PM HADT · 2961 days ago · 22 km deep · 62 km away
43. 1.6130 km W of Adak, AlaskaThu, Aug 23, 9:16 PM HADT · 2961 days ago · 13 km deep · 5 km away
44. 2.7104 km SW of Adak, AlaskaThu, Aug 23, 9:33 PM HADT · 2961 days ago · 33 km deep · 74 km away
45. 1.7107 km SW of Adak, AlaskaThu, Aug 23, 9:44 PM HADT · 2961 days ago · 34 km deep · 64 km away
46. 1.9125 km WSW of Adak, AlaskaThu, Aug 23, 10:31 PM HADT · 2961 days ago · 40 km deep · 41 km away
47. 1.990 km SW of Adak, AlaskaFri, Aug 24, 12:06 AM HADT · 2961 days ago · 32 km deep · 78 km away
48. 1.8166 km W of Adak, AlaskaFri, Aug 24, 12:36 AM HADT · 2961 days ago · 8 km deep · 43 km away
49. 1.686 km WSW of Adak, AlaskaFri, Aug 24, 1:56 AM HADT · 2961 days ago · 13 km deep · 51 km away
50. 2.1123 km WSW of Adak, AlaskaFri, Aug 24, 2:50 AM HADT · 2961 days ago · 61 km deep · 42 km away
51. 1.8204 km W of Adak, AlaskaFri, Aug 24, 3:19 AM HADT · 2961 days ago · 85 km deep · 78 km away
52. 2.089 km SW of Adak, AlaskaFri, Aug 24, 3:44 AM HADT · 2961 days ago · 53 km deep · 65 km away
53. 1.863 km SSW of Adak, AlaskaFri, Aug 24, 10:19 AM HADT · 2961 days ago · 49 km deep · 99 km away
54. 1.993 km SW of Adak, AlaskaFri, Aug 24, 11:37 AM HADT · 2961 days ago · 42 km deep · 74 km away
55. 1.688 km WSW of Adak, AlaskaFri, Aug 24, 12:53 PM HADT · 2961 days ago · 27 km deep · 46 km away
56. 1.887 km SW of Adak, AlaskaFri, Aug 24, 3:36 PM HADT · 2961 days ago · 42 km deep · 77 km away
57. 2.096 km SW of Adak, AlaskaFri, Aug 24, 4:56 PM HADT · 2961 days ago · 33 km deep · 66 km away
58. 2.389 km SW of Adak, AlaskaFri, Aug 24, 4:57 PM HADT · 2961 days ago · 37 km deep · 70 km away
59. 1.5130 km W of Adak, AlaskaFri, Aug 24, 8:48 PM HADT · 2960 days ago · 9 km deep · 8 km away
60. 1.993 km SW of Adak, AlaskaSat, Aug 25, 5:12 AM HADT · 2960 days ago · 25 km deep · 67 km away

The first 60 of at least 200.

Before

1. 2.349 km SW of Adak, AlaskaMon, Aug 20, 3:01 PM HADT · 2965 days ago · 39 km deep · 90 km away
2. 2.1117 km SW of Adak, AlaskaMon, Aug 20, 2:06 AM HADT · 2965 days ago · 17 km deep · 57 km away
3. 1.8109 km SW of Adak, AlaskaSun, Aug 19, 4:39 AM HADT · 2966 days ago · 38 km deep · 65 km away
4. 2.5111 km WSW of Adak, AlaskaSun, Aug 19, 1:41 AM HADT · 2966 days ago · 53 km deep · 41 km away
5. 2.097 km SW of Adak, AlaskaSun, Aug 19, 1:03 AM HADT · 2966 days ago · 43 km deep · 67 km away
6. 1.8115 km WSW of Adak, AlaskaSun, Aug 19, 12:24 AM HADT · 2966 days ago · 54 km deep · 46 km away
7. 2.3183 km WSW of Adak, AlaskaSat, Aug 18, 6:52 PM HADT · 2966 days ago · 26 km deep · 74 km away
8. 1.5Andreanof Islands, Aleutian Islands, AlaskaSat, Aug 18, 6:26 PM HADT · 2966 days ago · 35 km deep · 65 km away
9. 3.4105 km SW of Adak, AlaskaSat, Aug 18, 6:15 PM HADT · 2966 days ago · 30 km deep · 76 km away
10. 1.8105 km SW of Adak, AlaskaSat, Aug 18, 5:47 PM HADT · 2966 days ago · 46 km deep · 63 km away
11. 1.5100 km SW of Adak, AlaskaSat, Aug 18, 2:07 PM HADT · 2967 days ago · 33 km deep · 60 km away
12. 1.8110 km SW of Adak, AlaskaSat, Aug 18, 1:31 PM HADT · 2967 days ago · 49 km deep · 54 km away
13. 1.8105 km SW of Adak, AlaskaSat, Aug 18, 1:12 PM HADT · 2967 days ago · 26 km deep · 72 km away
14. 1.8100 km SW of Adak, AlaskaSat, Aug 18, 12:24 PM HADT · 2967 days ago · 26 km deep · 70 km away
15. 1.896 km SW of Adak, AlaskaSat, Aug 18, 11:13 AM HADT · 2967 days ago · 42 km deep · 63 km away
16. 1.9118 km SW of Adak, AlaskaSat, Aug 18, 8:32 AM HADT · 2967 days ago · 22 km deep · 53 km away
17. 3.196 km SW of Adak, AlaskaSat, Aug 18, 8:08 AM HADT · 2967 days ago · 24 km deep · 74 km away
18. 1.8198 km WSW of Adak, AlaskaSat, Aug 18, 7:56 AM HADT · 2967 days ago · 26 km deep · 76 km away
19. 1.6120 km SW of Adak, AlaskaSat, Aug 18, 7:32 AM HADT · 2967 days ago · 20 km deep · 61 km away
20. 1.8116 km WSW of Adak, AlaskaSat, Aug 18, 5:27 AM HADT · 2967 days ago · 49 km deep · 43 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak018appgtc4 (also filed as ak20257979). Read Fri, Oct 2, 2026, 1:48 PM UTC.