M1.6 earthquake 166 km W of Adak, Alaska

Magnitude

1.6 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Fri, Apr 6, 2018, 8:39 PM HADT

UTC

2018-04-07 05:39:51 UTC

Depth

9.7 km (6.0 mi), shallow

Epicenter

51.769° N, 179.045° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.4 km horizontally, 3.0 km in depth

Magnitude uncertainty

±0.12

Depth from

From location

Station coverage gap

339°, poorly surrounded by stations

Stations used

5

After

1. 2.0128 km W of Adak, AlaskaFri, Apr 6, 10:22 PM HADT · 3100 days ago · 20 km deep · 39 km away
2. 3.2145 km WSW of Adak, AlaskaSat, Apr 7, 4:40 AM HADT · 3100 days ago · 80 km deep · 42 km away
3. 2.5262 km W of Adak, AlaskaSun, Apr 8, 5:03 AM GMT+12 · 3099 days ago · 85 km deep · 95 km away
4. 2.5147 km WSW of Adak, AlaskaSat, Apr 7, 4:02 PM HADT · 3099 days ago · 69 km deep · 38 km away
5. 2.0126 km W of Adak, AlaskaSat, Apr 7, 8:34 PM HADT · 3099 days ago · 13 km deep · 41 km away
6. 2.686 km WSW of Adak, AlaskaTue, Apr 10, 4:00 AM HADT · 3097 days ago · 72 km deep · 91 km away
7. 3.0209 km WSW of Adak, AlaskaSun, Apr 15, 3:26 PM HADT · 3091 days ago · 15 km deep · 64 km away
8. 3.7234 km WSW of Adak, AlaskaWed, Apr 18, 8:48 AM HADT · 3088 days ago · 8 km deep · 92 km away
9. 3.8234 km WSW of Adak, AlaskaWed, Apr 18, 9:52 AM HADT · 3088 days ago · 6 km deep · 96 km away
10. 3.0168 km W of Adak, AlaskaWed, Apr 18, 8:51 PM HADT · 3088 days ago · 71 km deep · 13 km away
11. 3.8142 km WSW of Adak, AlaskaFri, Apr 20, 4:07 PM HADT · 3086 days ago · 25 km deep · 79 km away
12. 2.6241 km W of Adak, AlaskaSat, Apr 21, 10:23 PM GMT+12 · 3086 days ago · 7 km deep · 76 km away
13. 2.3229 km WSW of Adak, AlaskaSat, Apr 21, 11:44 PM HADT · 3085 days ago · 58 km deep · 66 km away
14. 2.9124 km WSW of Adak, AlaskaWed, Apr 25, 9:49 AM HADT · 3081 days ago · 25 km deep · 50 km away
15. 2.091 km WSW of Adak, AlaskaWed, Apr 25, 10:34 AM HADT · 3081 days ago · 63 km deep · 85 km away
16. 1.6127 km W of Adak, AlaskaWed, Apr 25, 2:39 PM HADT · 3081 days ago · 15 km deep · 39 km away
17. 2.4243 km WSW of Adak, AlaskaThu, Apr 26, 5:51 PM GMT+12 · 3081 days ago · 52 km deep · 83 km away
18. 2.1124 km W of Adak, AlaskaWed, Apr 25, 9:38 PM HADT · 3081 days ago · 15 km deep · 44 km away
19. 2.0142 km W of Adak, AlaskaThu, Apr 26, 5:23 AM HADT · 3081 days ago · 10 km deep · 28 km away
20. 2.3184 km WSW of Adak, AlaskaSat, Apr 28, 11:36 AM HADT · 3078 days ago · 6 km deep · 60 km away
21. 2.8225 km WSW of Adak, AlaskaSun, Apr 29, 12:06 AM HADT · 3078 days ago · 65 km deep · 66 km away
22. 2.4130 km W of Adak, AlaskaSun, Apr 29, 6:34 PM HADT · 3077 days ago · 13 km deep · 37 km away
23. 2.1128 km W of Adak, AlaskaMon, Apr 30, 6:57 AM HADT · 3076 days ago · 16 km deep · 38 km away
24. 1.9128 km W of Adak, AlaskaMon, Apr 30, 7:33 AM HADT · 3076 days ago · 21 km deep · 39 km away
25. 1.9112 km WSW of Adak, AlaskaMon, Apr 30, 9:05 PM HADT · 3076 days ago · 18 km deep · 70 km away
26. 1.688 km WSW of Adak, AlaskaTue, May 1, 9:59 AM HADT · 3075 days ago · 25 km deep · 84 km away
27. 2.0118 km WSW of Adak, AlaskaTue, May 1, 5:45 PM HADT · 3075 days ago · 26 km deep · 60 km away
28. 1.797 km WSW of Adak, AlaskaWed, May 2, 1:26 AM HADT · 3075 days ago · 51 km deep · 93 km away
29. 2.8177 km WSW of Adak, AlaskaThu, May 3, 3:33 AM HADT · 3074 days ago · 22 km deep · 53 km away
30. 4.5208 km W of Adak, AlaskaThu, May 3, 9:51 AM HADT · 3073 days ago · 80 km deep · 44 km away
31. 3.6156 km WSW of Adak, AlaskaSun, May 6, 4:17 AM HADT · 3071 days ago · 35 km deep · 60 km away
32. 2.9139 km WSW of Adak, AlaskaTue, May 8, 7:34 PM HADT · 3068 days ago · 42 km deep · 72 km away
33. 2.7168 km W of Adak, AlaskaFri, May 11, 1:02 PM HADT · 3065 days ago · 7 km deep · 11 km away
34. 3.3153 km WSW of Adak, AlaskaSun, May 13, 6:23 AM HADT · 3063 days ago · 34 km deep · 81 km away
35. 2.5250 km W of Adak, AlaskaTue, May 15, 3:34 PM GMT+12 · 3062 days ago · 73 km deep · 84 km away
36. 1.8241 km WSW of Adak, AlaskaWed, May 16, 11:26 AM GMT+12 · 3061 days ago · 16 km deep · 77 km away
37. 2.6257 km WSW of Adak, AlaskaWed, May 16, 3:29 PM GMT+12 · 3061 days ago · 32 km deep · 95 km away
38. 2.5198 km WSW of Adak, AlaskaTue, May 15, 8:54 PM HADT · 3061 days ago · 63 km deep · 54 km away
39. 1.9238 km WSW of Adak, AlaskaWed, May 16, 3:21 AM GMT-12 · 3060 days ago · 13 km deep · 78 km away
40. 4.0210 km W of Adak, AlaskaWed, May 16, 8:47 AM HADT · 3060 days ago · 118 km deep · 50 km away
41. 2.3211 km WSW of Adak, AlaskaFri, May 18, 1:01 AM HADT · 3059 days ago · 71 km deep · 50 km away
42. 2.1243 km WSW of Adak, AlaskaWed, May 23, 10:57 PM GMT-12 · 3053 days ago · 22 km deep · 87 km away
43. 2.4238 km WSW of Adak, AlaskaFri, May 25, 1:40 AM GMT-12 · 3052 days ago · 6 km deep · 97 km away
44. 2.1209 km WSW of Adak, AlaskaFri, May 25, 1:01 PM HADT · 3051 days ago · 53 km deep · 50 km away
45. 2.8199 km W of Adak, AlaskaSat, May 26, 3:52 AM HADT · 3051 days ago · 94 km deep · 33 km away
46. 2.8216 km W of Adak, AlaskaMon, May 28, 6:23 AM HADT · 3048 days ago · 80 km deep · 51 km away
47. 2.1127 km W of Adak, AlaskaWed, May 30, 2:22 PM HADT · 3046 days ago · 14 km deep · 42 km away
48. 2.3253 km W of Adak, AlaskaThu, May 31, 5:30 PM GMT+12 · 3046 days ago · 73 km deep · 87 km away
49. 1.9126 km WSW of Adak, AlaskaThu, May 31, 4:27 AM HADT · 3046 days ago · 13 km deep · 44 km away
50. 2.0121 km WSW of Adak, AlaskaThu, May 31, 6:05 AM HADT · 3046 days ago · 18 km deep · 50 km away
51. 3.3223 km W of Adak, AlaskaSat, Jun 2, 3:17 AM HADT · 3044 days ago · 87 km deep · 57 km away
52. 2.0126 km W of Adak, AlaskaSat, Jun 2, 11:56 PM HADT · 3043 days ago · 20 km deep · 41 km away
53. 1.6139 km WSW of Adak, AlaskaSun, Jun 3, 12:06 PM HADT · 3042 days ago · 19 km deep · 33 km away
54. 1.7131 km W of Adak, AlaskaSun, Jun 3, 1:42 PM HADT · 3042 days ago · 3 km deep · 35 km away
55. 2.8122 km WSW of Adak, AlaskaSun, Jun 3, 2:56 PM HADT · 3042 days ago · 26 km deep · 64 km away
56. 2.3128 km W of Adak, AlaskaMon, Jun 4, 12:56 AM HADT · 3042 days ago · 13 km deep · 41 km away
57. 2.2133 km WSW of Adak, AlaskaMon, Jun 4, 7:25 AM HADT · 3041 days ago · 9 km deep · 46 km away
58. 2.2251 km W of Adak, AlaskaTue, Jun 5, 8:47 AM GMT+12 · 3041 days ago · 67 km deep · 85 km away
59. 2.6241 km W of Adak, AlaskaTue, Jun 5, 11:50 PM GMT+12 · 3041 days ago · 12 km deep · 76 km away
60. 1.9203 km WSW of Adak, AlaskaTue, Jun 5, 5:32 AM HADT · 3041 days ago · 15 km deep · 58 km away

The first 60 of 62.

Before

1. 2.2198 km WSW of Adak, AlaskaFri, Apr 6, 7:27 PM HADT · 3100 days ago · 26 km deep · 55 km away
2. 3.6126 km WSW of Adak, AlaskaThu, Apr 5, 8:58 PM HADT · 3101 days ago · 13 km deep · 57 km away
3. 1.7151 km WSW of Adak, AlaskaThu, Apr 5, 3:09 PM HADT · 3101 days ago · 17 km deep · 37 km away
4. 1.8120 km WSW of Adak, AlaskaThu, Apr 5, 1:52 PM HADT · 3101 days ago · 56 km deep · 75 km away
5. 2.2258 km W of Adak, AlaskaFri, Apr 6, 7:12 AM GMT+12 · 3101 days ago · 74 km deep · 91 km away
6. 1.5111 km WSW of Adak, AlaskaThu, Apr 5, 4:11 AM HADT · 3102 days ago · 13 km deep · 70 km away
7. 2.2213 km W of Adak, AlaskaThu, Apr 5, 3:52 AM HADT · 3102 days ago · 86 km deep · 47 km away
8. 2.2210 km WSW of Adak, AlaskaWed, Apr 4, 10:53 PM HADT · 3102 days ago · 9 km deep · 61 km away
9. 2.2130 km W of Adak, AlaskaWed, Apr 4, 2:37 PM HADT · 3102 days ago · 11 km deep · 39 km away
10. 1.9127 km W of Adak, AlaskaWed, Apr 4, 2:47 AM HADT · 3103 days ago · 15 km deep · 40 km away
11. 2.2111 km WSW of Adak, AlaskaSun, Apr 1, 1:46 AM HADT · 3106 days ago · 39 km deep · 65 km away
12. 3.2245 km W of Adak, AlaskaSun, Apr 1, 9:03 PM GMT+12 · 3106 days ago · 19 km deep · 79 km away
13. 1.5158 km WSW of Adak, AlaskaSat, Mar 31, 8:39 AM HADT · 3106 days ago · 18 km deep · 25 km away
14. 2.2208 km WSW of Adak, AlaskaSat, Mar 31, 7:18 AM HADT · 3106 days ago · 55 km deep · 51 km away
15. 2.4126 km W of Adak, AlaskaSat, Mar 31, 7:12 AM HADT · 3106 days ago · 18 km deep · 41 km away
16. 2.0127 km W of Adak, AlaskaSat, Mar 31, 5:58 AM HADT · 3107 days ago · 19 km deep · 39 km away
17. 2.8187 km W of Adak, AlaskaFri, Mar 30, 9:19 PM HADT · 3107 days ago · 217 km deep · 31 km away
18. 2.5123 km WSW of Adak, AlaskaFri, Mar 30, 5:33 PM HADT · 3107 days ago · 19 km deep · 59 km away
19. 2.0127 km W of Adak, AlaskaFri, Mar 30, 4:39 PM HADT · 3107 days ago · 14 km deep · 42 km away
20. 2.0134 km WSW of Adak, AlaskaFri, Mar 30, 3:54 PM HADT · 3107 days ago · 34 km deep · 80 km away

From the USGS Earthquake Hazards Program and its partner networks, event av61695341. Read Fri, Oct 2, 2026, 2:42 AM UTC.