M1.6 earthquake 135 km W of Adak, Alaska

Magnitude

1.6 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Fri, Jul 13, 2018, 9:31 AM HADT

UTC

2018-07-13 18:31:48 UTC

Depth

17.4 km (10.8 mi), shallow

Epicenter

51.703° N, 178.584° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 6.8 km horizontally, 3.3 km in depth

Magnitude uncertainty

±0.09

Depth from

From location

Station coverage gap

340°, poorly surrounded by stations

Stations used

5

After

1. 2.3195 km WSW of Adak, AlaskaFri, Jul 13, 5:47 PM HADT · 3002 days ago · 13 km deep · 83 km away
2. 2.3190 km WSW of Adak, AlaskaFri, Jul 13, 11:23 PM HADT · 3002 days ago · 18 km deep · 65 km away
3. 1.6127 km W of Adak, AlaskaFri, Jul 13, 11:42 PM HADT · 3002 days ago · 12 km deep · 21 km away
4. 2.2207 km WSW of Adak, AlaskaSat, Jul 14, 5:49 AM HADT · 3001 days ago · 26 km deep · 76 km away
5. 2.0200 km W of Adak, AlaskaSat, Jul 14, 6:43 AM HADT · 3001 days ago · 70 km deep · 64 km away
6. 2.277 km WSW of Adak, AlaskaSat, Jul 14, 11:22 AM HADT · 3001 days ago · 25 km deep · 74 km away
7. 1.7127 km WSW of Adak, AlaskaSat, Jul 14, 2:14 PM HADT · 3001 days ago · 77 km deep · 27 km away
8. 1.8172 km WSW of Adak, AlaskaSat, Jul 14, 2:35 PM HADT · 3001 days ago · 7 km deep · 45 km away
9. 1.9202 km WSW of Adak, AlaskaSat, Jul 14, 9:01 PM HADT · 3001 days ago · 40 km deep · 69 km away
10. 2.1127 km W of Adak, AlaskaSun, Jul 15, 12:07 AM HADT · 3001 days ago · 11 km deep · 12 km away
11. 1.5188 km WSW of Adak, AlaskaSun, Jul 15, 12:02 PM HADT · 3000 days ago · 26 km deep · 61 km away
12. 1.8100 km SW of Adak, AlaskaSun, Jul 15, 10:10 PM HADT · 3000 days ago · 40 km deep · 82 km away
13. 1.9188 km WSW of Adak, AlaskaMon, Jul 16, 5:42 PM HADT · 2999 days ago · 26 km deep · 61 km away
14. 2.6138 km WSW of Adak, AlaskaMon, Jul 16, 6:58 PM HADT · 2999 days ago · 49 km deep · 32 km away
15. 2.2121 km WSW of Adak, AlaskaMon, Jul 16, 10:09 PM HADT · 2999 days ago · 27 km deep · 24 km away
16. 1.8114 km WSW of Adak, AlaskaTue, Jul 17, 10:08 PM HADT · 2998 days ago · 27 km deep · 32 km away
17. 2.3214 km W of Adak, AlaskaWed, Jul 18, 10:59 AM HADT · 2997 days ago · 169 km deep · 88 km away
18. 2.3196 km WSW of Adak, AlaskaWed, Jul 18, 4:24 PM HADT · 2997 days ago · 18 km deep · 78 km away
19. 2.1195 km WSW of Adak, AlaskaWed, Jul 18, 4:54 PM HADT · 2997 days ago · 16 km deep · 76 km away
20. 2.089 km WSW of Adak, AlaskaWed, Jul 18, 8:09 PM HADT · 2997 days ago · 73 km deep · 49 km away
21. 1.6126 km SW of Adak, AlaskaThu, Jul 19, 9:30 AM HADT · 2996 days ago · 16 km deep · 80 km away
22. 1.884 km WSW of Adak, AlaskaThu, Jul 19, 1:13 PM HADT · 2996 days ago · 43 km deep · 55 km away
23. 2.6185 km WSW of Adak, AlaskaFri, Jul 20, 5:30 PM HADT · 2995 days ago · 73 km deep · 51 km away
24. 1.5117 km WSW of Adak, AlaskaSat, Jul 21, 3:53 AM HADT · 2994 days ago · 39 km deep · 41 km away
25. 2.260 km W of Adak, AlaskaSat, Jul 21, 8:08 AM HADT · 2994 days ago · 70 km deep · 75 km away
26. 2.7132 km W of Adak, AlaskaSat, Jul 21, 2:00 PM HADT · 2994 days ago · 156 km deep · 33 km away
27. 1.9153 km WSW of Adak, AlaskaSat, Jul 21, 10:12 PM HADT · 2994 days ago · 20 km deep · 19 km away
28. 1.9204 km WSW of Adak, AlaskaSun, Jul 22, 7:57 PM HADT · 2993 days ago · 12 km deep · 76 km away
29. 2.3150 km W of Adak, AlaskaSun, Jul 22, 9:57 PM HADT · 2993 days ago · 141 km deep · 30 km away
30. 2.1134 km WSW of Adak, AlaskaMon, Jul 23, 3:23 AM HADT · 2992 days ago · 5 km deep · 7 km away
31. 1.7124 km WSW of Adak, AlaskaMon, Jul 23, 8:47 AM HADT · 2992 days ago · 16 km deep · 14 km away
32. 1.7118 km WSW of Adak, AlaskaMon, Jul 23, 12:45 PM HADT · 2992 days ago · 61 km deep · 54 km away
33. 1.7231 km W of Adak, AlaskaMon, Jul 23, 5:25 PM HADT · 2992 days ago · 73 km deep · 95 km away
34. 1.596 km SW of Adak, AlaskaMon, Jul 23, 6:28 PM HADT · 2992 days ago · 56 km deep · 67 km away
35. 2.2235 km W of Adak, AlaskaTue, Jul 24, 3:26 AM HADT · 2991 days ago · 68 km deep · 99 km away
36. 2.1226 km WSW of Adak, AlaskaTue, Jul 24, 12:09 PM HADT · 2991 days ago · 13 km deep · 93 km away
37. 1.6124 km WSW of Adak, AlaskaTue, Jul 24, 4:34 PM HADT · 2991 days ago · 22 km deep · 13 km away
38. 1.984 km WSW of Adak, AlaskaTue, Jul 24, 9:58 PM HADT · 2991 days ago · 26 km deep · 60 km away
39. 1.5103 km WSW of Adak, AlaskaWed, Jul 25, 12:30 AM HADT · 2991 days ago · 70 km deep · 40 km away
40. 1.6128 km W of Adak, AlaskaWed, Jul 25, 7:47 AM HADT · 2990 days ago · 13 km deep · 8 km away
41. 1.8105 km WSW of Adak, AlaskaWed, Jul 25, 11:19 AM HADT · 2990 days ago · 26 km deep · 33 km away
42. 1.7124 km WSW of Adak, AlaskaWed, Jul 25, 2:55 PM HADT · 2990 days ago · 15 km deep · 15 km away
43. 2.0208 km W of Adak, AlaskaFri, Jul 27, 5:34 PM HADT · 2988 days ago · 90 km deep · 73 km away
44. 2.0128 km WSW of Adak, AlaskaSat, Jul 28, 12:09 AM HADT · 2988 days ago · 42 km deep · 32 km away
45. 3.0230 km W of Adak, AlaskaSat, Jul 28, 12:27 AM HADT · 2988 days ago · 87 km deep · 94 km away
46. 1.9128 km W of Adak, AlaskaSat, Jul 28, 4:35 AM HADT · 2987 days ago · 19 km deep · 7 km away
47. 1.687 km WSW of Adak, AlaskaSat, Jul 28, 1:25 PM HADT · 2987 days ago · 44 km deep · 63 km away
48. 2.381 km WSW of Adak, AlaskaSun, Jul 29, 1:51 AM HADT · 2987 days ago · 26 km deep · 61 km away
49. 2.083 km WSW of Adak, AlaskaMon, Jul 30, 4:35 PM HADT · 2985 days ago · 29 km deep · 61 km away
50. 2.0212 km WSW of Adak, AlaskaTue, Jul 31, 2:54 AM HADT · 2984 days ago · 12 km deep · 91 km away
51. 1.9125 km WSW of Adak, AlaskaTue, Jul 31, 6:17 AM HADT · 2984 days ago · 7 km deep · 17 km away
52. 2.3125 km WSW of Adak, AlaskaTue, Jul 31, 6:59 AM HADT · 2984 days ago · 9 km deep · 12 km away
53. 1.7123 km W of Adak, AlaskaTue, Jul 31, 7:41 AM HADT · 2984 days ago · 17 km deep · 12 km away
54. 1.8123 km W of Adak, AlaskaTue, Jul 31, 8:11 AM HADT · 2984 days ago · 14 km deep · 13 km away
55. 2.049 km WSW of Adak, AlaskaTue, Jul 31, 11:07 AM HADT · 2984 days ago · 68 km deep · 87 km away
56. 2.6193 km WSW of Adak, AlaskaThu, Aug 2, 6:59 AM HADT · 2982 days ago · 21 km deep · 69 km away
57. 3.3128 km WSW of Adak, AlaskaThu, Aug 2, 6:10 PM HADT · 2982 days ago · 16 km deep · 24 km away
58. 2.4130 km WSW of Adak, AlaskaFri, Aug 3, 6:58 AM HADT · 2981 days ago · 14 km deep · 16 km away
59. 3.2143 km WSW of Adak, AlaskaFri, Aug 3, 7:20 AM HADT · 2981 days ago · 27 km deep · 52 km away
60. 2.384 km WSW of Adak, AlaskaFri, Aug 3, 10:32 PM HADT · 2981 days ago · 27 km deep · 60 km away

The first 60 of at least 201.

Before

1. 2.5125 km WSW of Adak, AlaskaFri, Jul 13, 6:11 AM HADT · 3002 days ago · 18 km deep · 26 km away
2. 1.9142 km WSW of Adak, AlaskaFri, Jul 13, 12:27 AM HADT · 3003 days ago · 54 km deep · 40 km away
3. 2.1128 km W of Adak, AlaskaThu, Jul 12, 11:43 PM HADT · 3003 days ago · 13 km deep · 9 km away
4. 2.1Andreanof Islands, Aleutian Islands, AlaskaThu, Jul 12, 11:27 PM HADT · 3003 days ago · 19 km deep · 7 km away
5. 2.995 km SW of Adak, AlaskaThu, Jul 12, 4:00 PM HADT · 3003 days ago · 32 km deep · 76 km away
6. 1.9140 km WSW of Adak, AlaskaThu, Jul 12, 2:57 PM HADT · 3003 days ago · 40 km deep · 13 km away
7. 2.0167 km W of Adak, AlaskaThu, Jul 12, 10:44 AM HADT · 3003 days ago · 11 km deep · 34 km away
8. 1.8123 km WSW of Adak, AlaskaWed, Jul 11, 9:41 PM HADT · 3004 days ago · 45 km deep · 29 km away
9. 1.9125 km W of Adak, AlaskaWed, Jul 11, 5:48 PM HADT · 3004 days ago · 15 km deep · 10 km away
10. 1.886 km WSW of Adak, AlaskaWed, Jul 11, 2:44 AM HADT · 3005 days ago · 31 km deep · 57 km away
11. 1.7124 km W of Adak, AlaskaWed, Jul 11, 2:14 AM HADT · 3005 days ago · 14 km deep · 12 km away
12. 1.9236 km W of Adak, AlaskaTue, Jul 10, 11:21 PM HADT · 3005 days ago · 59 km deep · 100 km away
13. 3.8145 km WSW of Adak, AlaskaTue, Jul 10, 2:21 PM HADT · 3005 days ago · 26 km deep · 48 km away
14. 1.6122 km W of Adak, AlaskaTue, Jul 10, 6:02 AM HADT · 3005 days ago · 21 km deep · 14 km away
15. 1.693 km WSW of Adak, AlaskaSun, Jul 8, 7:23 PM HADT · 3007 days ago · 31 km deep · 51 km away
16. 2.2130 km WSW of Adak, AlaskaFri, Jul 6, 3:36 AM HADT · 3009 days ago · 9 km deep · 11 km away
17. 2.3126 km W of Adak, AlaskaThu, Jul 5, 6:05 PM HADT · 3010 days ago · 16 km deep · 11 km away
18. 1.6139 km WSW of Adak, AlaskaThu, Jul 5, 12:13 PM HADT · 3010 days ago · 20 km deep · 57 km away
19. 3.1Andreanof Islands, Aleutian Islands, AlaskaThu, Jul 5, 8:29 AM HADT · 3010 days ago · 10 km deep · 51 km away
20. 1.6131 km W of Adak, AlaskaThu, Jul 5, 2:50 AM HADT · 3011 days ago · 13 km deep · 5 km away

From the USGS Earthquake Hazards Program and its partner networks, event av61743621. Read Thu, Oct 1, 2026, 11:21 PM UTC.