M1.7 earthquake 128 km W of Adak, Alaska

Magnitude

1.7 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Sat, Mar 17, 2018, 10:47 AM HADT

UTC

2018-03-17 19:47:17 UTC

Depth

27.8 km (17.3 mi), shallow

Epicenter

51.818° N, 178.493° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.0 km horizontally, 2.8 km in depth

Magnitude uncertainty

±0.22

Depth from

From location

Station coverage gap

341°, poorly surrounded by stations

Stations used

5

After

1. 2.0134 km W of Adak, AlaskaSat, Mar 17, 11:59 AM HADT · 3121 days ago · 15 km deep · 13 km away
2. 2.4Andreanof Islands, Aleutian Islands, AlaskaSat, Mar 17, 6:12 PM HADT · 3120 days ago · 27 km deep · 83 km away
3. 2.1124 km WSW of Adak, AlaskaSun, Mar 18, 6:21 AM HADT · 3120 days ago · 49 km deep · 43 km away
4. 2.4221 km W of Adak, AlaskaSun, Mar 18, 9:14 PM HADT · 3119 days ago · 66 km deep · 95 km away
5. 2.1132 km WSW of Adak, AlaskaMon, Mar 19, 1:26 AM HADT · 3119 days ago · 41 km deep · 38 km away
6. 1.7118 km WSW of Adak, AlaskaTue, Mar 20, 3:08 AM HADT · 3118 days ago · 28 km deep · 42 km away
7. 1.8174 km W of Adak, AlaskaTue, Mar 20, 4:29 AM HADT · 3118 days ago · 10 km deep · 46 km away
8. 2.3102 km WSW of Adak, AlaskaTue, Mar 20, 7:21 AM HADT · 3118 days ago · 13 km deep · 38 km away
9. 2.482 km WNW of Adak, AlaskaTue, Mar 20, 11:41 PM HADT · 3117 days ago · 103 km deep · 56 km away
10. 2.0137 km WSW of Adak, AlaskaWed, Mar 21, 12:11 AM HADT · 3117 days ago · 26 km deep · 44 km away
11. 2.484 km W of Adak, AlaskaWed, Mar 21, 7:58 PM HADT · 3116 days ago · 73 km deep · 44 km away
12. 2.5127 km WSW of Adak, AlaskaFri, Mar 23, 7:00 AM HADT · 3115 days ago · 15 km deep · 35 km away
13. 3.795 km SW of Adak, AlaskaSat, Mar 24, 2:56 PM HADT · 3114 days ago · 40 km deep · 78 km away
14. 2.530 km WSW of Adak, AlaskaSun, Mar 25, 4:54 AM HADT · 3113 days ago · 79 km deep · 98 km away
15. 3.1170 km SW of Adak, AlaskaMon, Mar 26, 10:57 AM HADT · 3112 days ago · 10 km deep · 97 km away
16. 1.8128 km WSW of Adak, AlaskaTue, Mar 27, 10:25 AM HADT · 3111 days ago · 9 km deep · 23 km away
17. 3.9180 km WSW of Adak, AlaskaTue, Mar 27, 10:37 AM HADT · 3111 days ago · 40 km deep · 73 km away
18. 2.3190 km WSW of Adak, AlaskaTue, Mar 27, 1:03 PM HADT · 3111 days ago · 12 km deep · 86 km away
19. 1.7132 km W of Adak, AlaskaTue, Mar 27, 3:03 PM HADT · 3111 days ago · 13 km deep · 13 km away
20. 1.6131 km W of Adak, AlaskaTue, Mar 27, 7:01 PM HADT · 3110 days ago · 16 km deep · 4 km away
21. 2.6127 km WSW of Adak, AlaskaWed, Mar 28, 1:40 AM HADT · 3110 days ago · 13 km deep · 27 km away
22. 1.838 km WNW of Adak, AlaskaWed, Mar 28, 1:46 AM HADT · 3110 days ago · 77 km deep · 94 km away
23. 1.7106 km SW of Adak, AlaskaWed, Mar 28, 8:33 AM HADT · 3110 days ago · 57 km deep · 67 km away
24. 2.1128 km WSW of Adak, AlaskaWed, Mar 28, 12:03 PM HADT · 3110 days ago · 13 km deep · 24 km away
25. 1.7187 km WSW of Adak, AlaskaWed, Mar 28, 8:57 PM HADT · 3109 days ago · 23 km deep · 72 km away
26. 3.8220 km W of Adak, AlaskaWed, Mar 28, 10:51 PM HADT · 3109 days ago · 177 km deep · 93 km away
27. 1.6124 km WSW of Adak, AlaskaWed, Mar 28, 11:23 PM HADT · 3109 days ago · 11 km deep · 20 km away
28. 1.9104 km WSW of Adak, AlaskaThu, Mar 29, 12:04 PM HADT · 3109 days ago · 37 km deep · 60 km away
29. 2.0134 km WSW of Adak, AlaskaFri, Mar 30, 3:54 PM HADT · 3107 days ago · 34 km deep · 66 km away
30. 2.0127 km W of Adak, AlaskaFri, Mar 30, 4:39 PM HADT · 3107 days ago · 14 km deep · 15 km away
31. 2.5123 km WSW of Adak, AlaskaFri, Mar 30, 5:33 PM HADT · 3107 days ago · 19 km deep · 38 km away
32. 2.8187 km W of Adak, AlaskaFri, Mar 30, 9:19 PM HADT · 3107 days ago · 217 km deep · 61 km away
33. 2.0127 km W of Adak, AlaskaSat, Mar 31, 5:58 AM HADT · 3107 days ago · 19 km deep · 8 km away
34. 2.4126 km W of Adak, AlaskaSat, Mar 31, 7:12 AM HADT · 3107 days ago · 18 km deep · 11 km away
35. 2.2208 km WSW of Adak, AlaskaSat, Mar 31, 7:18 AM HADT · 3107 days ago · 55 km deep · 85 km away
36. 1.5158 km WSW of Adak, AlaskaSat, Mar 31, 8:39 AM HADT · 3107 days ago · 18 km deep · 38 km away
37. 2.2111 km WSW of Adak, AlaskaSun, Apr 1, 1:46 AM HADT · 3106 days ago · 39 km deep · 36 km away
38. 1.9127 km W of Adak, AlaskaWed, Apr 4, 2:47 AM HADT · 3103 days ago · 15 km deep · 12 km away
39. 2.2130 km W of Adak, AlaskaWed, Apr 4, 2:37 PM HADT · 3103 days ago · 11 km deep · 16 km away
40. 2.075 km WSW of Adak, AlaskaWed, Apr 4, 7:50 PM HADT · 3102 days ago · 36 km deep · 72 km away
41. 2.2210 km WSW of Adak, AlaskaWed, Apr 4, 10:53 PM HADT · 3102 days ago · 9 km deep · 92 km away
42. 2.2213 km W of Adak, AlaskaThu, Apr 5, 3:52 AM HADT · 3102 days ago · 86 km deep · 85 km away
43. 1.5111 km WSW of Adak, AlaskaThu, Apr 5, 4:11 AM HADT · 3102 days ago · 13 km deep · 44 km away
44. 1.8120 km WSW of Adak, AlaskaThu, Apr 5, 1:52 PM HADT · 3102 days ago · 56 km deep · 55 km away
45. 1.7151 km WSW of Adak, AlaskaThu, Apr 5, 3:09 PM HADT · 3102 days ago · 17 km deep · 40 km away
46. 3.6126 km WSW of Adak, AlaskaThu, Apr 5, 8:58 PM HADT · 3101 days ago · 13 km deep · 37 km away
47. 2.2198 km WSW of Adak, AlaskaFri, Apr 6, 7:27 PM HADT · 3100 days ago · 26 km deep · 82 km away
48. 1.6166 km W of Adak, AlaskaFri, Apr 6, 8:39 PM HADT · 3100 days ago · 10 km deep · 38 km away
49. 2.0128 km W of Adak, AlaskaFri, Apr 6, 10:22 PM HADT · 3100 days ago · 20 km deep · 7 km away
50. 3.2145 km WSW of Adak, AlaskaSat, Apr 7, 4:40 AM HADT · 3100 days ago · 80 km deep · 39 km away
51. 2.5147 km WSW of Adak, AlaskaSat, Apr 7, 4:02 PM HADT · 3099 days ago · 69 km deep · 37 km away
52. 2.0126 km W of Adak, AlaskaSat, Apr 7, 8:34 PM HADT · 3099 days ago · 13 km deep · 11 km away
53. 2.596 km SW of Adak, AlaskaSun, Apr 8, 8:32 AM HADT · 3099 days ago · 40 km deep · 78 km away
54. 2.686 km WSW of Adak, AlaskaTue, Apr 10, 4:00 AM HADT · 3097 days ago · 72 km deep · 57 km away
55. 3.0209 km WSW of Adak, AlaskaSun, Apr 15, 3:26 PM HADT · 3091 days ago · 15 km deep · 93 km away
56. 3.0168 km W of Adak, AlaskaWed, Apr 18, 8:51 PM HADT · 3088 days ago · 71 km deep · 42 km away
57. 4.1157 km SW of Adak, AlaskaWed, Apr 18, 10:04 PM HADT · 3088 days ago · 35 km deep · 94 km away
58. 3.8142 km WSW of Adak, AlaskaFri, Apr 20, 4:07 PM HADT · 3086 days ago · 25 km deep · 70 km away
59. 2.371 km WSW of Adak, AlaskaMon, Apr 23, 8:56 PM HADT · 3083 days ago · 31 km deep · 74 km away
60. 2.9124 km WSW of Adak, AlaskaWed, Apr 25, 9:49 AM HADT · 3082 days ago · 25 km deep · 27 km away

The first 60 of 91.

Before

1. 1.5123 km W of Adak, AlaskaSat, Mar 17, 10:14 AM HADT · 3121 days ago · 3 km deep · 6 km away
2. 2.6129 km WSW of Adak, AlaskaSat, Mar 17, 4:30 AM HADT · 3121 days ago · 8 km deep · 40 km away
3. 2.6129 km W of Adak, AlaskaSat, Mar 17, 2:22 AM HADT · 3121 days ago · 26 km deep · 2 km away
4. 1.9132 km W of Adak, AlaskaFri, Mar 16, 5:20 AM HADT · 3122 days ago · 17 km deep · 4 km away
5. 1.7132 km W of Adak, AlaskaFri, Mar 16, 5:06 AM HADT · 3122 days ago · 19 km deep · 4 km away
6. 3.5131 km W of Adak, AlaskaFri, Mar 16, 4:38 AM HADT · 3122 days ago · 19 km deep · 16 km away
7. 2.7114 km SW of Adak, AlaskaFri, Mar 16, 3:11 AM HADT · 3122 days ago · 45 km deep · 75 km away
8. 2.3227 km W of Adak, AlaskaThu, Mar 15, 2:53 PM HADT · 3123 days ago · 86 km deep · 99 km away
9. 2.2129 km W of Adak, AlaskaThu, Mar 15, 11:04 AM HADT · 3123 days ago · 14 km deep · 14 km away
10. 1.657 km WSW of Adak, AlaskaThu, Mar 15, 10:39 AM HADT · 3123 days ago · 23 km deep · 80 km away
11. 2.0131 km WSW of Adak, AlaskaThu, Mar 15, 8:44 AM HADT · 3123 days ago · 7 km deep · 22 km away
12. 1.9111 km WSW of Adak, AlaskaThu, Mar 15, 8:29 AM HADT · 3123 days ago · 37 km deep · 43 km away
13. 1.8105 km WSW of Adak, AlaskaThu, Mar 15, 8:28 AM HADT · 3123 days ago · 54 km deep · 36 km away
14. 2.2110 km WSW of Adak, AlaskaThu, Mar 15, 4:50 AM HADT · 3123 days ago · 48 km deep · 58 km away
15. 1.9124 km W of Adak, AlaskaWed, Mar 14, 8:35 PM HADT · 3123 days ago · 18 km deep · 17 km away
16. 1.7129 km WSW of Adak, AlaskaWed, Mar 14, 2:10 AM HADT · 3124 days ago · 11 km deep · 27 km away
17. 1.8125 km W of Adak, AlaskaWed, Mar 14, 12:43 AM HADT · 3124 days ago · 15 km deep · 13 km away
18. 1.873 km WSW of Adak, AlaskaTue, Mar 13, 10:52 PM HADT · 3124 days ago · 43 km deep · 64 km away
19. 2.0127 km W of Adak, AlaskaTue, Mar 13, 6:23 PM HADT · 3124 days ago · 14 km deep · 15 km away
20. 1.5126 km WSW of Adak, AlaskaTue, Mar 13, 1:42 PM HADT · 3125 days ago · 22 km deep · 18 km away

From the USGS Earthquake Hazards Program and its partner networks, event av61686351. Read Fri, Oct 2, 2026, 11:52 AM UTC.