M1.6 earthquake 267 km W of Adak, Alaska

Magnitude

1.6 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Wed, Aug 1, 2018, 7:12 AM GMT+12

UTC

2018-07-31 19:12:46 UTC

Depth

13.3 km (8.3 mi), shallow

Epicenter

51.929° N, 179.480° E

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.9 km horizontally, 1.4 km in depth

Magnitude uncertainty

±0.61

Depth from

From location

Station coverage gap

251°, poorly surrounded by stations

Stations used

5

After

1. 2.3281 km WSW of Adak, AlaskaThu, Aug 2, 1:42 AM GMT+12 · 2984 days ago · 28 km deep · 80 km away
2. 2.6251 km W of Adak, AlaskaSat, Aug 4, 10:33 AM GMT+12 · 2981 days ago · 120 km deep · 17 km away
3. 4.1Rat Islands, Aleutian Islands, AlaskaSun, Aug 5, 12:15 PM GMT+12 · 2980 days ago · 32 km deep · 86 km away
4. 4.1Rat Islands, Aleutian Islands, AlaskaSun, Aug 5, 12:43 PM GMT+12 · 2980 days ago · 25 km deep · 99 km away
5. 4.5Rat Islands, Aleutian Islands, AlaskaSun, Aug 5, 6:11 PM GMT+12 · 2980 days ago · 35 km deep · 87 km away
6. 1.9239 km W of Adak, AKSun, Aug 5, 7:09 PM GMT+12 · 2980 days ago · 6 km deep · 38 km away
7. 3.1Rat Islands, Aleutian Islands, AlaskaSun, Aug 5, 8:00 PM GMT+12 · 2980 days ago · 26 km deep · 97 km away
8. 4.5Rat Islands, Aleutian Islands, AlaskaSun, Aug 5, 10:37 PM GMT+12 · 2980 days ago · 60 km deep · 93 km away
9. 2.2Rat Islands, Aleutian Islands, AlaskaMon, Aug 6, 12:17 PM GMT+12 · 2979 days ago · 33 km deep · 96 km away
10. 1.6286 km WSW of Adak, AlaskaTue, Aug 7, 1:56 AM GMT+12 · 2979 days ago · 37 km deep · 68 km away
11. 2.8252 km W of Adak, AlaskaTue, Aug 7, 5:40 AM GMT+12 · 2978 days ago · 197 km deep · 15 km away
12. 1.9Rat Islands, Aleutian Islands, AlaskaTue, Aug 7, 10:49 AM GMT+12 · 2978 days ago · 36 km deep · 75 km away
13. 2.8Rat Islands, Aleutian Islands, AlaskaWed, Aug 8, 10:06 PM GMT+12 · 2977 days ago · 104 km deep · 67 km away
14. 2.4289 km W of Adak, AlaskaThu, Aug 9, 6:09 AM GMT+12 · 2976 days ago · 80 km deep · 34 km away
15. 2.7Rat Islands, Aleutian Islands, AlaskaFri, Aug 10, 6:35 AM GMT+12 · 2975 days ago · 123 km deep · 70 km away
16. 2.3286 km W of Adak, AlaskaFri, Aug 10, 4:09 PM GMT+12 · 2975 days ago · 70 km deep · 41 km away
17. 2.1Rat Islands, Aleutian Islands, AlaskaFri, Aug 10, 4:24 PM GMT+12 · 2975 days ago · 60 km deep · 59 km away
18. 3.7258 km WSW of Adak, AlaskaSat, Aug 11, 1:43 AM GMT+12 · 2975 days ago · 22 km deep · 75 km away
19. 3.7237 km W of Adak, AlaskaSat, Aug 11, 10:39 AM GMT+12 · 2974 days ago · 73 km deep · 56 km away
20. 3.7250 km WSW of Adak, AlaskaSat, Aug 11, 12:07 PM GMT+12 · 2974 days ago · 34 km deep · 100 km away
21. 2.0235 km WSW of Adak, AlaskaFri, Aug 10, 3:16 PM HADT · 2974 days ago · 15 km deep · 96 km away
22. 2.3Rat Islands, Aleutian Islands, AlaskaSat, Aug 11, 10:26 PM GMT+12 · 2974 days ago · 71 km deep · 74 km away
23. 2.0230 km W of Adak, AlaskaSat, Aug 11, 3:28 AM HADT · 2974 days ago · 85 km deep · 47 km away
24. 2.0Rat Islands, Aleutian Islands, AlaskaMon, Aug 13, 9:09 AM GMT+12 · 2972 days ago · 19 km deep · 95 km away
25. 4.1278 km WSW of Adak, AlaskaTue, Aug 14, 10:44 AM GMT+12 · 2971 days ago · 47 km deep · 93 km away
26. 1.9258 km WSW of Adak, AlaskaTue, Aug 14, 11:59 AM GMT+12 · 2971 days ago · 66 km deep · 60 km away
27. 2.3Rat Islands, Aleutian Islands, AlaskaTue, Aug 14, 2:05 PM GMT+12 · 2971 days ago · 7 km deep · 51 km away
28. 1.7Rat Islands, Aleutian Islands, AlaskaWed, Aug 15, 12:36 AM GMT+12 · 2971 days ago · 30 km deep · 72 km away
29. 2.2Rat Islands, Aleutian Islands, AlaskaWed, Aug 15, 7:06 AM GMT+12 · 2970 days ago · 122 km deep · 78 km away
30. 1.9214 km W of Adak, AlaskaTue, Aug 14, 1:52 PM HADT · 2970 days ago · 106 km deep · 55 km away
31. 2.5Rat Islands, Aleutian Islands, AlaskaWed, Aug 15, 5:07 PM GMT+12 · 2970 days ago · 92 km deep · 67 km away
32. 1.7269 km WSW of Adak, AlaskaWed, Aug 15, 6:18 PM GMT+12 · 2970 days ago · 49 km deep · 65 km away
33. 2.1262 km W of Adak, AlaskaWed, Aug 15, 11:48 PM GMT+12 · 2970 days ago · 150 km deep · 6 km away
34. 2.2Rat Islands, Aleutian Islands, AlaskaThu, Aug 16, 12:38 AM GMT+12 · 2970 days ago · 89 km deep · 58 km away
35. 2.5214 km W of Adak, AlaskaWed, Aug 15, 7:58 AM HADT · 2969 days ago · 187 km deep · 59 km away
36. 1.7206 km WSW of Adak, AlaskaWed, Aug 15, 12:52 PM HADT · 2969 days ago · 25 km deep · 95 km away
37. 2.4Rat Islands, Aleutian Islands, AlaskaThu, Aug 16, 12:06 PM GMT+12 · 2969 days ago · 6 km deep · 99 km away
38. 2.7Rat Islands, Aleutian Islands, AlaskaThu, Aug 16, 12:12 PM GMT+12 · 2969 days ago · 143 km deep · 74 km away
39. 2.1236 km WSW of Adak, AlaskaThu, Aug 16, 5:12 AM HADT · 2969 days ago · 13 km deep · 95 km away
40. 2.7234 km W of Adak, AlaskaThu, Aug 16, 4:05 PM HADT · 2968 days ago · 177 km deep · 35 km away
41. 2.3236 km W of Adak, AlaskaThu, Aug 16, 5:57 PM HADT · 2968 days ago · 90 km deep · 43 km away
42. 2.5266 km WSW of Adak, AlaskaMon, Aug 20, 11:25 AM GMT+12 · 2965 days ago · 35 km deep · 94 km away
43. 4.1248 km WSW of Adak, AlaskaTue, Aug 21, 1:31 AM GMT+12 · 2965 days ago · 70 km deep · 89 km away
44. 4.2Andreanof Islands, Aleutian Islands, AlaskaWed, Aug 22, 4:34 AM HADT · 2963 days ago · 35 km deep · 97 km away
45. 1.9Rat Islands, Aleutian Islands, AlaskaFri, Aug 24, 3:29 AM GMT+12 · 2961 days ago · 65 km deep · 59 km away
46. 2.5233 km WSW of Adak, AlaskaThu, Aug 23, 8:01 AM HADT · 2961 days ago · 70 km deep · 93 km away
47. 1.8241 km W of Adak, AlaskaFri, Aug 24, 9:46 PM GMT+12 · 2961 days ago · 57 km deep · 55 km away
48. 1.8204 km W of Adak, AlaskaFri, Aug 24, 3:19 AM HADT · 2961 days ago · 85 km deep · 72 km away
49. 2.5Rat Islands, Aleutian Islands, AlaskaSat, Aug 25, 12:24 PM GMT+12 · 2960 days ago · 91 km deep · 53 km away
50. 2.5239 km W of Adak, AlaskaWed, Aug 29, 4:34 PM GMT+12 · 2956 days ago · 82 km deep · 43 km away
51. 2.6Rat Islands, Aleutian Islands, AlaskaWed, Aug 29, 8:37 PM GMT+12 · 2956 days ago · 100 km deep · 76 km away
52. 2.0Rat Islands, Aleutian Islands, AlaskaFri, Aug 31, 12:28 PM GMT+12 · 2954 days ago · 99 km deep · 70 km away
53. 1.6223 km WSW of Adak, AlaskaFri, Aug 31, 3:30 AM HADT · 2954 days ago · 13 km deep · 86 km away
54. 2.0Rat Islands, Aleutian Islands, AlaskaSat, Sep 1, 3:02 AM GMT+12 · 2953 days ago · 7 km deep · 60 km away
55. 1.5187 km W of Adak, AlaskaFri, Aug 31, 11:49 AM HADT · 2953 days ago · 14 km deep · 81 km away
56. 1.9218 km W of Adak, AlaskaFri, Aug 31, 7:16 PM HADT · 2953 days ago · 72 km deep · 63 km away
57. 2.1203 km W of Adak, AlaskaSat, Sep 1, 5:55 AM HADT · 2952 days ago · 82 km deep · 70 km away
58. 2.2Rat Islands, Aleutian Islands, AlaskaSun, Sep 2, 10:56 PM GMT+12 · 2952 days ago · 144 km deep · 76 km away
59. 1.9Rat Islands, Aleutian Islands, AlaskaMon, Sep 3, 1:14 AM GMT+12 · 2952 days ago · 102 km deep · 61 km away
60. 1.9297 km W of Adak, AlaskaMon, Sep 3, 4:57 PM GMT+12 · 2951 days ago · 1 km deep · 34 km away

The first 60 of 92.

Before

1. 1.8Rat Islands, Aleutian Islands, AlaskaTue, Jul 31, 11:16 PM GMT+12 · 2985 days ago · 7 km deep · 82 km away
2. 1.5260 km W of Adak, AlaskaSun, Jul 29, 12:36 PM GMT+12 · 2987 days ago · 16 km deep · 9 km away
3. 3.0230 km W of Adak, AlaskaSat, Jul 28, 12:27 AM HADT · 2988 days ago · 87 km deep · 56 km away
4. 2.0208 km W of Adak, AlaskaFri, Jul 27, 5:34 PM HADT · 2988 days ago · 90 km deep · 65 km away
5. 4.2Rat Islands, Aleutian Islands, AlaskaFri, Jul 27, 7:44 PM GMT+12 · 2989 days ago · 127 km deep · 96 km away
6. 2.6Rat Islands, Aleutian Islands, AlaskaFri, Jul 27, 4:01 PM GMT+12 · 2989 days ago · 127 km deep · 73 km away
7. 2.8269 km WSW of Adak, AlaskaThu, Jul 26, 10:11 PM GMT+12 · 2990 days ago · 21 km deep · 92 km away
8. 2.1298 km W of Adak, AlaskaThu, Jul 26, 8:55 PM GMT+12 · 2990 days ago · 64 km deep · 52 km away
9. 2.1226 km WSW of Adak, AlaskaTue, Jul 24, 12:09 PM HADT · 2991 days ago · 13 km deep · 85 km away
10. 2.2235 km W of Adak, AlaskaTue, Jul 24, 3:26 AM HADT · 2992 days ago · 68 km deep · 57 km away
11. 2.6262 km WSW of Adak, AlaskaTue, Jul 24, 5:45 PM GMT+12 · 2992 days ago · 54 km deep · 66 km away
12. 1.7Rat Islands, Aleutian Islands, AlaskaTue, Jul 24, 5:43 PM GMT+12 · 2992 days ago · 58 km deep · 67 km away
13. 1.7231 km W of Adak, AlaskaMon, Jul 23, 5:25 PM HADT · 2992 days ago · 73 km deep · 59 km away
14. 2.1274 km W of Adak, AlaskaTue, Jul 24, 9:20 AM GMT+12 · 2992 days ago · 13 km deep · 50 km away
15. 2.0Rat Islands, Aleutian Islands, AlaskaMon, Jul 23, 7:29 PM GMT+12 · 2993 days ago · 42 km deep · 71 km away
16. 2.6Rat Islands, Aleutian Islands, AlaskaMon, Jul 23, 12:07 PM GMT+12 · 2993 days ago · 109 km deep · 73 km away
17. 2.1Rat Islands, Aleutian Islands, AlaskaMon, Jul 23, 3:42 AM GMT+12 · 2993 days ago · 109 km deep · 52 km away
18. 1.9246 km W of Adak, AlaskaSun, Jul 22, 8:09 AM GMT+12 · 2994 days ago · 24 km deep · 47 km away
19. 2.2249 km W of Adak, AlaskaSun, Jul 22, 7:55 AM GMT+12 · 2994 days ago · 170 km deep · 19 km away
20. 1.8250 km W of Adak, AlaskaSat, Jul 21, 10:50 PM GMT+12 · 2995 days ago · 89 km deep · 29 km away

From the USGS Earthquake Hazards Program and its partner networks, event av61754581. Read Fri, Oct 2, 2026, 2:11 AM UTC.