M1.7 earthquake 57 km WSW of Atka, Alaska

Magnitude

1.7 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Fri, Jul 21, 2017, 9:20 AM HADT

UTC

2017-07-21 18:20:30 UTC

Depth

64.4 km (40.0 mi), shallow

Epicenter

51.926° N, 174.912° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

16

After

1. 1.553 km SE of Adak, AlaskaFri, Jul 21, 11:20 PM HADT · 3359 days ago · 24 km deep · 100 km away
2. 1.9127 km SSW of Atka, AlaskaSun, Jul 23, 1:20 AM HADT · 3358 days ago · 26 km deep · 82 km away
3. 2.449 km W of Atka, AlaskaSun, Jul 23, 3:14 AM HADT · 3358 days ago · 5 km deep · 25 km away
4. 1.824 km S of Atka, AlaskaSun, Jul 23, 6:57 PM HADT · 3358 days ago · 56 km deep · 45 km away
5. 3.520 km NW of Atka, AlaskaTue, Jul 25, 2:52 AM HADT · 3356 days ago · 169 km deep · 58 km away
6. 1.956 km SE of Adak, AlaskaWed, Jul 26, 12:48 PM HADT · 3355 days ago · 22 km deep · 98 km away
7. 3.533 km ESE of Atka, AlaskaWed, Jul 26, 6:57 PM HADT · 3355 days ago · 90 km deep · 78 km away
8. 1.538 km ESE of Adak, AlaskaThu, Jul 27, 1:17 PM HADT · 3354 days ago · 61 km deep · 89 km away
9. 2.156 km SW of Atka, AlaskaThu, Jul 27, 11:10 PM HADT · 3353 days ago · 73 km deep · 4 km away
10. 2.0108 km SSW of Atka, AlaskaFri, Jul 28, 11:06 PM HADT · 3352 days ago · 37 km deep · 80 km away
11. 2.648 km SW of Atka, AlaskaSat, Jul 29, 12:29 AM HADT · 3352 days ago · 68 km deep · 11 km away
12. 3.720 km N of Atka, AlaskaSat, Jul 29, 2:03 AM HADT · 3352 days ago · 220 km deep · 72 km away
13. 2.435 km ESE of Adak, AlaskaSat, Jul 29, 11:23 AM HADT · 3352 days ago · 59 km deep · 90 km away
14. 2.3Andreanof Islands, Aleutian Islands, AlaskaSun, Jul 30, 8:37 PM HADT · 3351 days ago · 7 km deep · 83 km away
15. 1.7103 km ESE of Adak, AlaskaMon, Jul 31, 7:55 AM HADT · 3350 days ago · 30 km deep · 54 km away
16. 2.2124 km SSW of Atka, AlaskaMon, Jul 31, 1:46 PM HADT · 3350 days ago · 26 km deep · 84 km away
17. 5.227 km ESE of Adak, AlaskaMon, Jul 31, 8:00 PM HADT · 3350 days ago · 61 km deep · 93 km away · felt by 2 · tsunami flag
18. 3.343 km SE of Adak, AlaskaMon, Jul 31, 8:02 PM HADT · 3350 days ago · 45 km deep · 93 km away
19. 1.638 km SE of Adak, AlaskaMon, Jul 31, 8:18 PM HADT · 3350 days ago · 45 km deep · 97 km away
20. 1.642 km SE of Adak, AlaskaMon, Jul 31, 9:31 PM HADT · 3350 days ago · 38 km deep · 95 km away
21. 2.727 km NW of Atka, AlaskaTue, Aug 1, 3:30 PM HADT · 3349 days ago · 153 km deep · 60 km away
22. 1.837 km ESE of Atka, AlaskaWed, Aug 2, 2:07 AM HADT · 3348 days ago · 10 km deep · 82 km away
23. 1.962 km SW of Atka, AlaskaWed, Aug 2, 6:50 AM HADT · 3348 days ago · 20 km deep · 16 km away
24. 2.484 km SSW of Atka, AlaskaWed, Aug 2, 10:25 AM HADT · 3348 days ago · 3 km deep · 61 km away
25. 2.7128 km SSW of Atka, AlaskaThu, Aug 3, 9:46 PM HADT · 3347 days ago · 185 km deep · 86 km away
26. 2.992 km WNW of Atka, AlaskaThu, Aug 3, 9:46 PM HADT · 3347 days ago · 226 km deep · 67 km away
27. 1.997 km SSW of Atka, AlaskaFri, Aug 4, 1:49 AM HADT · 3346 days ago · 25 km deep · 54 km away
28. 1.786 km SW of Atka, AlaskaFri, Aug 4, 4:07 AM HADT · 3346 days ago · 23 km deep · 31 km away
29. 2.745 km NE of Adak, AlaskaFri, Aug 4, 4:38 AM HADT · 3346 days ago · 180 km deep · 87 km away
30. 2.423 km WNW of Atka, AlaskaSat, Aug 5, 12:49 PM HADT · 3345 days ago · 172 km deep · 49 km away
31. 1.841 km ENE of Adak, AlaskaSat, Aug 5, 4:48 PM HADT · 3345 days ago · 7 km deep · 79 km away
32. 2.882 km ENE of Adak, AlaskaSat, Aug 5, 6:56 PM HADT · 3345 days ago · 255 km deep · 63 km away
33. 2.246 km SSE of Atka, AlaskaSun, Aug 6, 5:36 AM HADT · 3344 days ago · 44 km deep · 71 km away
34. 1.5Andreanof Islands, Aleutian Islands, AlaskaSun, Aug 6, 5:34 PM HADT · 3344 days ago · 20 km deep · 90 km away
35. 1.660 km SE of Adak, AlaskaMon, Aug 7, 9:15 AM HADT · 3343 days ago · 23 km deep · 90 km away
36. 2.48 km NW of Atka, AlaskaTue, Aug 8, 5:39 AM HADT · 3342 days ago · 187 km deep · 55 km away
37. 2.257 km ESE of Atka, AlaskaTue, Aug 8, 5:29 PM HADT · 3342 days ago · 56 km deep · 99 km away
38. 1.738 km SSE of Atka, AlaskaWed, Aug 9, 3:35 AM HADT · 3341 days ago · 19 km deep · 58 km away
39. 1.693 km SW of Atka, AlaskaWed, Aug 9, 5:03 AM HADT · 3341 days ago · 47 km deep · 37 km away
40. 1.557 km SW of Atka, AlaskaWed, Aug 9, 3:40 PM HADT · 3341 days ago · 33 km deep · 17 km away
41. 2.272 km S of Atka, AlaskaThu, Aug 10, 11:42 PM HADT · 3339 days ago · 14 km deep · 61 km away
42. 2.169 km S of Atka, AlaskaFri, Aug 11, 11:28 AM HADT · 3339 days ago · 15 km deep · 57 km away
43. 1.985 km ENE of Adak, AlaskaFri, Aug 11, 3:36 PM HADT · 3339 days ago · 102 km deep · 38 km away
44. 1.959 km ESE of Adak, AlaskaFri, Aug 11, 10:04 PM HADT · 3339 days ago · 54 km deep · 66 km away
45. 2.575 km W of Atka, AlaskaSat, Aug 12, 6:58 AM HADT · 3338 days ago · 244 km deep · 45 km away
46. 2.243 km SE of Atka, AlaskaSat, Aug 12, 7:25 AM HADT · 3338 days ago · 60 km deep · 75 km away
47. 1.5113 km SSW of Atka, AlaskaSat, Aug 12, 7:39 AM HADT · 3338 days ago · 17 km deep · 66 km away
48. 1.669 km SSE of Atka, AlaskaSat, Aug 12, 11:04 AM HADT · 3338 days ago · 25 km deep · 81 km away
49. 1.932 km SSW of Atka, AlaskaSat, Aug 12, 3:29 PM HADT · 3338 days ago · 71 km deep · 33 km away
50. 2.128 km ESE of Atka, AlaskaMon, Aug 14, 6:09 AM HADT · 3336 days ago · 82 km deep · 79 km away
51. 2.133 km SE of Atka, AlaskaMon, Aug 14, 9:23 PM HADT · 3336 days ago · 2 km deep · 75 km away
52. 2.417 km SE of Atka, AlaskaTue, Aug 15, 4:23 PM HADT · 3335 days ago · 154 km deep · 63 km away
53. 1.872 km SE of Atka, AlaskaTue, Aug 15, 10:21 PM HADT · 3335 days ago · 16 km deep · 96 km away
54. 2.340 km NE of Atka, AlaskaFri, Aug 18, 6:39 AM HADT · 3332 days ago · 195 km deep · 96 km away
55. 1.561 km SW of Atka, AlaskaSat, Aug 19, 1:10 PM HADT · 3331 days ago · 43 km deep · 17 km away
56. 3.317 km ESE of Atka, AlaskaSat, Aug 19, 5:05 PM HADT · 3331 days ago · 66 km deep · 68 km away
57. 1.675 km ESE of Adak, AlaskaSun, Aug 20, 2:00 PM HADT · 3330 days ago · 63 km deep · 72 km away
58. 1.563 km SSW of Atka, AlaskaSun, Aug 20, 8:33 PM HADT · 3330 days ago · 42 km deep · 27 km away
59. 1.981 km ESE of Adak, AlaskaSun, Aug 20, 11:09 PM HADT · 3329 days ago · 55 km deep · 64 km away
60. 4.247 km NNW of Atka, AlaskaWed, Aug 23, 3:42 AM HADT · 3327 days ago · 174 km deep · 85 km away

The first 60 of 100.

Before

1. 2.9Andreanof Islands, Aleutian Islands, AlaskaThu, Jul 20, 5:13 PM HADT · 3361 days ago · 167 km deep · 95 km away
2. 1.867 km SE of Adak, AlaskaThu, Jul 20, 6:40 AM HADT · 3361 days ago · 26 km deep · 78 km away
3. 1.947 km SE of Atka, AlaskaWed, Jul 19, 8:50 PM HADT · 3362 days ago · 33 km deep · 88 km away
4. 1.7Andreanof Islands, Aleutian Islands, AlaskaSat, Jul 15, 6:22 PM HADT · 3366 days ago · 47 km deep · 46 km away
5. 1.735 km SSW of Atka, AlaskaSat, Jul 15, 4:48 PM HADT · 3366 days ago · 48 km deep · 36 km away
6. 1.667 km SW of Atka, AlaskaSat, Jul 15, 11:29 AM HADT · 3366 days ago · 11 km deep · 22 km away
7. 1.675 km ESE of Adak, AlaskaFri, Jul 14, 2:09 PM HADT · 3367 days ago · 38 km deep · 71 km away
8. 3.254 km ESE of Adak, AlaskaWed, Jul 12, 11:28 PM HADT · 3368 days ago · 47 km deep · 75 km away
9. 2.073 km SW of Atka, AlaskaWed, Jul 12, 8:34 PM HADT · 3369 days ago · 26 km deep · 23 km away
10. 2.5118 km SSW of Atka, AlaskaWed, Jul 12, 2:58 AM HADT · 3369 days ago · 12 km deep · 75 km away
11. 3.764 km NE of Adak, AlaskaTue, Jul 11, 3:28 AM HADT · 3370 days ago · 172 km deep · 91 km away
12. 3.723 km NW of Atka, AlaskaTue, Jul 11, 12:25 AM HADT · 3370 days ago · 191 km deep · 61 km away
13. 1.667 km SE of Adak, AlaskaMon, Jul 10, 5:59 AM HADT · 3371 days ago · 18 km deep · 95 km away
14. 2.069 km SW of Atka, AlaskaSat, Jul 8, 1:55 AM HADT · 3373 days ago · 26 km deep · 21 km away
15. 1.589 km SW of Atka, AlaskaThu, Jul 6, 9:16 AM HADT · 3375 days ago · 47 km deep · 34 km away
16. 2.431 km SSW of Atka, AlaskaWed, Jul 5, 8:35 PM HADT · 3376 days ago · 56 km deep · 33 km away
17. 2.091 km SW of Atka, AlaskaWed, Jul 5, 1:09 AM HADT · 3376 days ago · 47 km deep · 34 km away
18. 2.5104 km SSW of Atka, AlaskaMon, Jul 3, 6:37 PM HADT · 3378 days ago · 23 km deep · 74 km away
19. 1.853 km SE of Adak, AlaskaSun, Jul 2, 8:38 PM HADT · 3379 days ago · 26 km deep · 98 km away
20. 2.510 km WNW of Atka, AlaskaSun, Jul 2, 9:44 AM HADT · 3379 days ago · 178 km deep · 50 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0179ade9cp (also filed as ak16359163). Read Fri, Oct 2, 2026, 7:09 PM UTC.