M1.8 earthquake 131 km W of Adak, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Fri, Jul 21, 2017, 11:52 AM HADT

UTC

2017-07-21 20:52:43 UTC

Depth

11.6 km (7.2 mi), shallow

Epicenter

51.674° N, 178.518° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

18

After

1. 2.0125 km W of Adak, AlaskaFri, Jul 21, 2:57 PM HADT · 3360 days ago · 13 km deep · 7 km away
2. 1.8208 km W of Adak, AlaskaFri, Jul 21, 3:17 PM HADT · 3360 days ago · 70 km deep · 77 km away
3. 1.9123 km WSW of Adak, AlaskaFri, Jul 21, 3:21 PM HADT · 3360 days ago · 18 km deep · 10 km away
4. 2.0132 km W of Adak, AlaskaFri, Jul 21, 4:38 PM HADT · 3360 days ago · 10 km deep · 5 km away
5. 1.698 km WSW of Adak, AlaskaFri, Jul 21, 8:43 PM HADT · 3359 days ago · 34 km deep · 45 km away
6. 3.0126 km WSW of Adak, AlaskaFri, Jul 21, 9:27 PM HADT · 3359 days ago · 7 km deep · 9 km away
7. 1.594 km SW of Adak, AlaskaFri, Jul 21, 10:14 PM HADT · 3359 days ago · 41 km deep · 80 km away
8. 2.5125 km W of Adak, AlaskaFri, Jul 21, 11:20 PM HADT · 3359 days ago · 18 km deep · 7 km away
9. 2.3133 km W of Adak, AlaskaFri, Jul 21, 11:31 PM HADT · 3359 days ago · 11 km deep · 6 km away
10. 1.8136 km WSW of Adak, AlaskaFri, Jul 21, 11:48 PM HADT · 3359 days ago · 5 km deep · 7 km away
11. 1.7128 km WSW of Adak, AlaskaSat, Jul 22, 6:20 AM HADT · 3359 days ago · 13 km deep · 24 km away
12. 1.5120 km WSW of Adak, AlaskaSat, Jul 22, 10:32 AM HADT · 3359 days ago · 6 km deep · 18 km away
13. 1.5116 km WSW of Adak, AlaskaSat, Jul 22, 11:35 AM HADT · 3359 days ago · 76 km deep · 30 km away
14. 1.5182 km WSW of Adak, AlaskaSat, Jul 22, 1:25 PM HADT · 3359 days ago · 26 km deep · 60 km away
15. 1.9117 km WSW of Adak, AlaskaSat, Jul 22, 2:26 PM HADT · 3359 days ago · 23 km deep · 19 km away
16. 2.3161 km WSW of Adak, AlaskaSat, Jul 22, 4:50 PM HADT · 3359 days ago · 32 km deep · 63 km away
17. 2.8130 km WSW of Adak, AlaskaSun, Jul 23, 12:04 AM HADT · 3358 days ago · 9 km deep · 35 km away
18. 1.678 km SW of Adak, AlaskaSun, Jul 23, 3:28 AM HADT · 3358 days ago · 16 km deep · 70 km away
19. 1.9166 km W of Adak, AlaskaSun, Jul 23, 5:08 AM HADT · 3358 days ago · 9 km deep · 38 km away
20. 1.8124 km WSW of Adak, AlaskaSun, Jul 23, 6:31 AM HADT · 3358 days ago · 14 km deep · 11 km away
21. 1.658 km WSW of Adak, AlaskaSun, Jul 23, 7:09 AM HADT · 3358 days ago · 61 km deep · 79 km away
22. 1.661 km W of Adak, AlaskaSun, Jul 23, 7:36 AM HADT · 3358 days ago · 73 km deep · 71 km away
23. 1.6120 km WSW of Adak, AlaskaSun, Jul 23, 9:09 AM HADT · 3358 days ago · 11 km deep · 13 km away
24. 1.6127 km W of Adak, AlaskaSun, Jul 23, 11:50 AM HADT · 3358 days ago · 13 km deep · 5 km away
25. 1.7126 km WSW of Adak, AlaskaSun, Jul 23, 12:38 PM HADT · 3358 days ago · 13 km deep · 11 km away
26. 1.7180 km WSW of Adak, AlaskaSun, Jul 23, 4:51 PM HADT · 3358 days ago · 23 km deep · 52 km away
27. 1.5130 km W of Adak, AlaskaSun, Jul 23, 6:48 PM HADT · 3358 days ago · 13 km deep · 17 km away
28. 2.2129 km W of Adak, AlaskaMon, Jul 24, 4:56 PM HADT · 3357 days ago · 12 km deep · 4 km away
29. 2.2125 km W of Adak, AlaskaMon, Jul 24, 5:28 PM HADT · 3357 days ago · 11 km deep · 7 km away
30. 1.7210 km W of Adak, AlaskaTue, Jul 25, 3:59 PM HADT · 3356 days ago · 13 km deep · 79 km away
31. 1.9125 km W of Adak, AlaskaTue, Jul 25, 7:30 PM HADT · 3356 days ago · 14 km deep · 7 km away
32. 1.6110 km SW of Adak, AlaskaWed, Jul 26, 12:41 AM HADT · 3355 days ago · 23 km deep · 64 km away
33. 1.5133 km W of Adak, AlaskaWed, Jul 26, 6:05 AM HADT · 3355 days ago · 18 km deep · 8 km away
34. 2.2123 km W of Adak, AlaskaWed, Jul 26, 7:32 AM HADT · 3355 days ago · 14 km deep · 8 km away
35. 1.6134 km W of Adak, AlaskaWed, Jul 26, 7:47 AM HADT · 3355 days ago · 14 km deep · 4 km away
36. 1.5126 km WSW of Adak, AlaskaWed, Jul 26, 7:55 AM HADT · 3355 days ago · 20 km deep · 16 km away
37. 2.0133 km W of Adak, AlaskaWed, Jul 26, 7:58 AM HADT · 3355 days ago · 14 km deep · 5 km away
38. 2.4135 km W of Adak, AlaskaWed, Jul 26, 7:59 AM HADT · 3355 days ago · 13 km deep · 4 km away
39. 2.1133 km W of Adak, AlaskaWed, Jul 26, 9:50 AM HADT · 3355 days ago · 12 km deep · 2 km away
40. 1.6127 km WSW of Adak, AlaskaWed, Jul 26, 10:46 AM HADT · 3355 days ago · 8 km deep · 15 km away
41. 1.5129 km WSW of Adak, AlaskaWed, Jul 26, 11:45 AM HADT · 3355 days ago · 11 km deep · 3 km away
42. 1.549 km SW of Adak, AlaskaWed, Jul 26, 12:48 PM HADT · 3355 days ago · 40 km deep · 99 km away
43. 1.8134 km W of Adak, AlaskaWed, Jul 26, 1:19 PM HADT · 3355 days ago · 13 km deep · 7 km away
44. 1.6122 km WSW of Adak, AlaskaWed, Jul 26, 5:43 PM HADT · 3355 days ago · 13 km deep · 27 km away
45. 1.6124 km WSW of Adak, AlaskaWed, Jul 26, 6:03 PM HADT · 3355 days ago · 19 km deep · 33 km away
46. 2.3126 km WSW of Adak, AlaskaWed, Jul 26, 6:16 PM HADT · 3355 days ago · 6 km deep · 20 km away
47. 2.2129 km WSW of Adak, AlaskaWed, Jul 26, 7:14 PM HADT · 3355 days ago · 12 km deep · 14 km away
48. 1.7129 km W of Adak, AlaskaWed, Jul 26, 9:00 PM HADT · 3354 days ago · 11 km deep · 4 km away
49. 1.6126 km WSW of Adak, AlaskaWed, Jul 26, 11:46 PM HADT · 3354 days ago · 15 km deep · 9 km away
50. 1.5125 km W of Adak, AlaskaThu, Jul 27, 12:26 AM HADT · 3354 days ago · 15 km deep · 7 km away
51. 1.7124 km W of Adak, AlaskaThu, Jul 27, 2:12 AM HADT · 3354 days ago · 16 km deep · 9 km away
52. 2.0118 km WSW of Adak, AlaskaThu, Jul 27, 5:11 AM HADT · 3354 days ago · 15 km deep · 19 km away
53. 1.6125 km W of Adak, AlaskaThu, Jul 27, 8:47 AM HADT · 3354 days ago · 19 km deep · 10 km away
54. 2.5128 km WSW of Adak, AlaskaThu, Jul 27, 10:32 AM HADT · 3354 days ago · 10 km deep · 30 km away
55. 1.8124 km W of Adak, AlaskaThu, Jul 27, 10:41 AM HADT · 3354 days ago · 17 km deep · 9 km away
56. 3.7127 km WSW of Adak, AlaskaThu, Jul 27, 1:36 PM HADT · 3354 days ago · 17 km deep · 21 km away
57. 2.8126 km WSW of Adak, AlaskaThu, Jul 27, 1:39 PM HADT · 3354 days ago · 18 km deep · 16 km away
58. 2.4125 km WSW of Adak, AlaskaThu, Jul 27, 2:01 PM HADT · 3354 days ago · 13 km deep · 7 km away
59. 2.1129 km W of Adak, AlaskaThu, Jul 27, 4:56 PM HADT · 3354 days ago · 7 km deep · 2 km away
60. 2.6124 km SW of Adak, AlaskaThu, Jul 27, 6:18 PM HADT · 3354 days ago · 26 km deep · 62 km away

The first 60 of at least 201.

Before

1. 2.2134 km WSW of Adak, AlaskaFri, Jul 21, 11:29 AM HADT · 3360 days ago · 2 km deep · 6 km away
2. 1.7133 km WSW of Adak, AlaskaFri, Jul 21, 10:14 AM HADT · 3360 days ago · 7 km deep · 3 km away
3. 1.8138 km W of Adak, AlaskaFri, Jul 21, 8:41 AM HADT · 3360 days ago · 12 km deep · 19 km away
4. 2.7136 km WSW of Adak, AlaskaFri, Jul 21, 8:06 AM HADT · 3360 days ago · 14 km deep · 12 km away
5. 1.5121 km WSW of Adak, AlaskaFri, Jul 21, 5:11 AM HADT · 3360 days ago · 4 km deep · 25 km away
6. 1.8127 km W of Adak, AlaskaFri, Jul 21, 4:13 AM HADT · 3360 days ago · 13 km deep · 5 km away
7. 1.7121 km WSW of Adak, AlaskaFri, Jul 21, 4:10 AM HADT · 3360 days ago · 7 km deep · 21 km away
8. 2.4130 km W of Adak, AlaskaFri, Jul 21, 12:42 AM HADT · 3360 days ago · 141 km deep · 26 km away
9. 1.6123 km WSW of Adak, AlaskaThu, Jul 20, 6:17 PM HADT · 3361 days ago · 15 km deep · 9 km away
10. 2.4133 km WSW of Adak, AlaskaThu, Jul 20, 10:57 AM HADT · 3361 days ago · 7 km deep · 3 km away
11. 2.1134 km W of Adak, AlaskaThu, Jul 20, 10:38 AM HADT · 3361 days ago · 13 km deep · 8 km away
12. 3.3137 km WSW of Adak, AlaskaThu, Jul 20, 10:34 AM HADT · 3361 days ago · 19 km deep · 10 km away
13. 2.0117 km WSW of Adak, AlaskaThu, Jul 20, 9:15 AM HADT · 3361 days ago · 18 km deep · 21 km away
14. 2.1118 km WSW of Adak, AlaskaThu, Jul 20, 9:15 AM HADT · 3361 days ago · 20 km deep · 17 km away
15. 1.6128 km W of Adak, AlaskaThu, Jul 20, 8:38 AM HADT · 3361 days ago · 25 km deep · 3 km away
16. 1.9227 km W of Adak, AlaskaThu, Jul 20, 6:35 AM HADT · 3361 days ago · 97 km deep · 96 km away
17. 1.8126 km WSW of Adak, AlaskaThu, Jul 20, 3:17 AM HADT · 3361 days ago · 21 km deep · 6 km away
18. 2.4117 km WSW of Adak, AlaskaThu, Jul 20, 3:09 AM HADT · 3361 days ago · 17 km deep · 19 km away
19. 1.6125 km W of Adak, AlaskaWed, Jul 19, 1:28 PM HADT · 3362 days ago · 13 km deep · 7 km away
20. 2.1133 km W of Adak, AlaskaWed, Jul 19, 9:12 AM HADT · 3362 days ago · 5 km deep · 7 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0179aes0g0 (also filed as ak16359794). Read Fri, Oct 2, 2026, 4:05 PM UTC.