M1.6 earthquake 13 km WSW of Atka, Alaska

Magnitude

1.6 (ML, local (Richter)), micro

Magnitude from

AV

Local time

Sat, Jul 15, 2023, 1:32 AM HADT

UTC

2023-07-15 10:32:50 UTC

Depth

16.7 km (10.4 mi), shallow

Epicenter

52.148° N, 174.382° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.8 km horizontally, 2.4 km in depth

Magnitude uncertainty

±0.28

Depth from

From location

Station coverage gap

326°, poorly surrounded by stations

Stations used

6

After

1. 3.252 km SSE of Atka, AlaskaSat, Jul 15, 2:06 AM HADT · 1178 days ago · 35 km deep · 57 km away
2. 1.819 km SSW of Atka, AlaskaSat, Jul 15, 3:33 PM HADT · 1177 days ago · 71 km deep · 12 km away
3. 1.6Andreanof Islands, Aleutian Islands, AlaskaSat, Jul 15, 9:20 PM HADT · 1177 days ago · 11 km deep · 61 km away
4. 1.663 km SW of Atka, AlaskaSun, Jul 16, 2:20 AM HADT · 1177 days ago · 39 km deep · 51 km away
5. 1.585 km SW of Atka, AlaskaSun, Jul 16, 1:32 PM HADT · 1177 days ago · 47 km deep · 72 km away
6. 1.844 km ESE of Atka, AlaskaSun, Jul 16, 5:01 PM HADT · 1176 days ago · 76 km deep · 55 km away
7. 1.883 km SSE of Atka, AlaskaSun, Jul 16, 5:51 PM HADT · 1176 days ago · 0 km deep · 82 km away
8. 2.769 km SE of Atka, AlaskaSun, Jul 16, 9:14 PM HADT · 1176 days ago · 10 km deep · 74 km away
9. 3.645 km SE of Atka, AlaskaMon, Jul 17, 1:00 AM HADT · 1176 days ago · 10 km deep · 53 km away
10. 1.852 km SSE of Atka, AlaskaMon, Jul 17, 11:42 AM HADT · 1176 days ago · 22 km deep · 53 km away
11. 3.336 km N of Atka, AlaskaMon, Jul 17, 2:04 PM HADT · 1175 days ago · 186 km deep · 43 km away
12. 1.855 km SSW of Atka, AlaskaMon, Jul 17, 2:17 PM HADT · 1175 days ago · 39 km deep · 45 km away
13. 2.0100 km SSW of Atka, AlaskaMon, Jul 17, 6:25 PM HADT · 1175 days ago · 25 km deep · 93 km away
14. 2.632 km WNW of Atka, AlaskaWed, Jul 19, 7:48 AM HADT · 1174 days ago · 159 km deep · 26 km away
15. 2.146 km SE of Atka, AlaskaWed, Jul 19, 9:20 AM HADT · 1174 days ago · 67 km deep · 54 km away
16. 3.572 km WSW of Atka, AlaskaWed, Jul 19, 10:32 AM HADT · 1174 days ago · 79 km deep · 59 km away
17. 2.643 km W of Atka, AlaskaWed, Jul 19, 8:02 PM HADT · 1173 days ago · 15 km deep · 30 km away
18. 3.4100 km SSE of Atka, AlaskaThu, Jul 20, 12:43 AM HADT · 1173 days ago · 25 km deep · 99 km away
19. 3.165 km ENE of Adak, AlaskaFri, Jul 21, 10:45 AM HADT · 1172 days ago · 157 km deep · 97 km away
20. 2.263 km ESE of Atka, AlaskaFri, Jul 21, 10:32 PM HADT · 1171 days ago · 22 km deep · 75 km away
21. 3.061 km SSW of Atka, AlaskaSat, Jul 22, 8:24 AM HADT · 1171 days ago · 35 km deep · 52 km away
22. 3.361 km SW of Atka, AlaskaMon, Jul 24, 5:40 AM HADT · 1169 days ago · 61 km deep · 49 km away
23. 3.1Andreanof Islands, Aleutian Islands, AlaskaMon, Jul 24, 10:14 PM HADT · 1168 days ago · 189 km deep · 24 km away
24. 2.167 km WSW of Atka, AlaskaWed, Jul 26, 8:36 AM HADT · 1167 days ago · 79 km deep · 54 km away
25. 2.8Andreanof Islands, Aleutian Islands, AlaskaWed, Jul 26, 12:54 PM HADT · 1167 days ago · 35 km deep · 95 km away
26. 2.3Andreanof Islands, Aleutian Islands, AlaskaThu, Jul 27, 9:12 AM HADT · 1166 days ago · 207 km deep · 87 km away
27. 2.553 km ESE of Atka, AlaskaThu, Jul 27, 3:22 PM HADT · 1165 days ago · 35 km deep · 63 km away
28. 2.038 km ESE of Atka, AlaskaThu, Jul 27, 5:44 PM HADT · 1165 days ago · 19 km deep · 49 km away
29. 1.869 km WSW of Atka, AlaskaSun, Jul 30, 4:10 AM HADT · 1163 days ago · 51 km deep · 56 km away
30. 2.663 km S of Atka, AlaskaSun, Jul 30, 6:40 AM HADT · 1163 days ago · 10 km deep · 57 km away
31. 2.142 km E of Atka, AlaskaSun, Jul 30, 12:39 PM HADT · 1163 days ago · 16 km deep · 54 km away
32. 2.138 km ESE of Atka, AlaskaSun, Jul 30, 1:07 PM HADT · 1163 days ago · 16 km deep · 50 km away
33. 2.5Andreanof Islands, Aleutian Islands, AlaskaSun, Jul 30, 1:51 PM HADT · 1162 days ago · 11 km deep · 53 km away
34. 2.374 km ENE of Adak, AlaskaSun, Jul 30, 8:54 PM HADT · 1162 days ago · 147 km deep · 90 km away
35. 2.813 km SW of Atka, AlaskaSun, Jul 30, 10:53 PM HADT · 1162 days ago · 211 km deep · 5 km away
36. 2.760 km SSW of Atka, AlaskaWed, Aug 2, 10:21 PM HADT · 1159 days ago · 35 km deep · 52 km away
37. 2.856 km ESE of Atka, AlaskaThu, Aug 3, 3:07 AM HADT · 1159 days ago · 35 km deep · 66 km away
38. 2.187 km SW of Atka, AlaskaThu, Aug 3, 7:13 AM HADT · 1159 days ago · 26 km deep · 76 km away
39. 3.275 km W of Atka, AlaskaThu, Aug 3, 8:57 AM HADT · 1159 days ago · 123 km deep · 63 km away
40. 3.050 km W of Atka, AlaskaThu, Aug 3, 10:21 AM HADT · 1159 days ago · 143 km deep · 40 km away
41. 3.133 km NW of Atka, AlaskaThu, Aug 3, 1:03 PM HADT · 1159 days ago · 169 km deep · 31 km away
42. 3.046 km ESE of Atka, AlaskaThu, Aug 3, 10:44 PM HADT · 1158 days ago · 10 km deep · 55 km away
43. 3.527 km SSE of Atka, AlaskaFri, Aug 4, 4:23 PM HADT · 1157 days ago · 59 km deep · 31 km away
44. 3.179 km SSE of Atka, AlaskaSun, Aug 6, 3:43 PM HADT · 1155 days ago · 35 km deep · 82 km away
45. 2.746 km SE of Atka, AlaskaSun, Aug 6, 10:42 PM HADT · 1155 days ago · 10 km deep · 55 km away
46. 2.742 km SE of Atka, AlaskaSun, Aug 6, 10:53 PM HADT · 1155 days ago · 10 km deep · 50 km away
47. 2.8Andreanof Islands, Aleutian Islands, AlaskaMon, Aug 7, 6:30 AM HADT · 1155 days ago · 13 km deep · 83 km away
48. 1.877 km W of Atka, AlaskaMon, Aug 7, 7:24 AM HADT · 1155 days ago · 82 km deep · 65 km away
49. 2.945 km NE of Atka, AlaskaMon, Aug 7, 3:02 PM HADT · 1154 days ago · 161 km deep · 58 km away
50. 3.229 km NNW of Atka, AlaskaTue, Aug 8, 1:42 AM HADT · 1154 days ago · 184 km deep · 33 km away
51. 3.049 km ESE of Atka, AlaskaTue, Aug 8, 1:50 AM HADT · 1154 days ago · 10 km deep · 58 km away
52. 3.3Andreanof Islands, Aleutian Islands, AlaskaWed, Aug 9, 6:40 PM HADT · 1152 days ago · 39 km deep · 91 km away
53. 3.368 km ESE of Atka, AlaskaThu, Aug 10, 12:46 AM HADT · 1152 days ago · 35 km deep · 78 km away
54. 3.156 km SW of Atka, AlaskaThu, Aug 10, 11:40 PM HADT · 1151 days ago · 19 km deep · 45 km away
55. 2.822 km WNW of Atka, AlaskaFri, Aug 11, 7:11 AM HADT · 1151 days ago · 174 km deep · 17 km away
56. 1.844 km S of Atka, AlaskaFri, Aug 11, 7:51 AM HADT · 1151 days ago · 11 km deep · 38 km away
57. 2.137 km ESE of Atka, AlaskaFri, Aug 11, 10:41 AM HADT · 1151 days ago · 10 km deep · 48 km away
58. 1.831 km ESE of Atka, AlaskaFri, Aug 11, 12:10 PM HADT · 1151 days ago · 8 km deep · 41 km away
59. 1.5110 km SW of Atka, AlaskaFri, Aug 11, 12:19 PM HADT · 1151 days ago · 13 km deep · 99 km away
60. 1.779 km WSW of Atka, AlaskaFri, Aug 11, 4:21 PM HADT · 1150 days ago · 35 km deep · 66 km away

The first 60 of 180.

Before

1. 2.184 km W of Atka, AlaskaThu, Jul 13, 9:35 PM HADT · 1179 days ago · 94 km deep · 72 km away
2. 2.651 km WNW of Atka, AlaskaThu, Jul 13, 5:56 PM HADT · 1179 days ago · 120 km deep · 44 km away
3. 3.283 km NE of Adak, AlaskaTue, Jul 11, 9:13 PM HADT · 1181 days ago · 222 km deep · 90 km away
4. 1.966 km SSE of Atka, AlaskaTue, Jul 11, 12:44 PM HADT · 1182 days ago · 15 km deep · 67 km away
5. 2.865 km NW of Atka, AlaskaMon, Jul 10, 8:22 PM HADT · 1182 days ago · 219 km deep · 64 km away
6. 2.9100 km ESE of Adak, AlaskaMon, Jul 10, 2:54 PM HADT · 1182 days ago · 35 km deep · 90 km away
7. 1.983 km ENE of Adak, AlaskaMon, Jul 10, 7:27 AM HADT · 1183 days ago · 116 km deep · 76 km away
8. 2.031 km SW of Atka, AlaskaSun, Jul 9, 4:20 PM HADT · 1183 days ago · 70 km deep · 20 km away
9. 2.928 km NE of Atka, AlaskaSun, Jul 9, 1:55 PM HADT · 1183 days ago · 176 km deep · 41 km away
10. 2.026 km ESE of Atka, AlaskaSun, Jul 9, 2:20 AM HADT · 1184 days ago · 14 km deep · 38 km away
11. 1.784 km WSW of Atka, AlaskaSat, Jul 8, 3:33 AM HADT · 1185 days ago · 60 km deep · 71 km away
12. 1.817 km W of Atka, AlaskaFri, Jul 7, 5:13 PM HADT · 1185 days ago · 13 km deep · 6 km away
13. 2.074 km SE of Atka, AlaskaFri, Jul 7, 9:36 AM HADT · 1186 days ago · 21 km deep · 79 km away
14. 2.188 km SW of Atka, AlaskaFri, Jul 7, 2:05 AM HADT · 1186 days ago · 26 km deep · 77 km away
15. 2.011 km WSW of Atka, AlaskaThu, Jul 6, 2:40 AM HADT · 1187 days ago · 24 km deep · 2 km away
16. 3.360 km NNW of Atka, AlaskaWed, Jul 5, 6:56 AM HADT · 1188 days ago · 163 km deep · 63 km away
17. 2.090 km SW of Atka, AlaskaMon, Jul 3, 3:36 AM HADT · 1190 days ago · 13 km deep · 78 km away
18. 3.2Andreanof Islands, Aleutian Islands, AlaskaSun, Jul 2, 10:09 AM HADT · 1191 days ago · 79 km deep · 45 km away
19. 2.5109 km SSW of Atka, AlaskaThu, Jun 29, 5:45 PM HADT · 1193 days ago · 10 km deep · 100 km away
20. 3.967 km N of Atka, AlaskaThu, Jun 29, 11:37 AM HADT · 1194 days ago · 228 km deep · 73 km away

From the USGS Earthquake Hazards Program and its partner networks, event av91964076. Read Mon, Oct 5, 2026, 10:04 AM UTC.