M1.7 earthquake 134 km S of Unalaska, Alaska

Magnitude

1.7 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Mon, Aug 21, 2017, 7:20 PM AKDT

UTC

2017-08-22 03:20:32 UTC

Depth

23.6 km (14.7 mi), shallow

Epicenter

52.666° N, 166.482° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

13

• Unalaska, AlaskaPopulation 4,491. Forecast134 kmS

After

1. 1.6104 km E of Nikolski, AlaskaTue, Aug 22, 4:02 AM AKDT · 3328 days ago · 49 km deep · 63 km away
2. 2.0158 km ESE of Nikolski, AlaskaTue, Aug 22, 12:11 PM AKDT · 3327 days ago · 8 km deep · 40 km away
3. 1.577 km SSW of Unalaska, AlaskaTue, Aug 22, 9:46 PM AKDT · 3327 days ago · 2 km deep · 77 km away
4. 2.390 km E of Nikolski, AlaskaFri, Aug 25, 9:53 AM AKDT · 3324 days ago · 49 km deep · 72 km away
5. 2.1191 km SSE of Unalaska, AlaskaSun, Aug 27, 7:40 AM AKDT · 3323 days ago · 20 km deep · 92 km away
6. 2.0129 km S of Unalaska, AlaskaSun, Aug 27, 7:00 PM AKDT · 3322 days ago · 5 km deep · 6 km away
7. 2.3137 km S of Unalaska, AlaskaSun, Aug 27, 7:18 PM AKDT · 3322 days ago · 11 km deep · 9 km away
8. 1.976 km SE of Unalaska, AlaskaMon, Aug 28, 3:01 AM AKDT · 3322 days ago · 22 km deep · 90 km away
9. 3.5118 km SSE of Unalaska, AlaskaTue, Aug 29, 4:59 AM AKDT · 3321 days ago · 11 km deep · 67 km away
10. 2.0100 km E of Nikolski, AlaskaWed, Aug 30, 10:03 AM AKDT · 3319 days ago · 70 km deep · 78 km away
11. 1.571 km SW of Unalaska, AlaskaSat, Sep 2, 12:21 AM AKDT · 3317 days ago · 70 km deep · 89 km away
12. 2.081 km S of Unalaska, AlaskaTue, Sep 5, 10:43 AM AKDT · 3313 days ago · 26 km deep · 55 km away
13. 1.674 km S of Unalaska, AlaskaTue, Sep 5, 11:37 AM AKDT · 3313 days ago · 23 km deep · 62 km away
14. 3.7200 km SE of Nikolski, AlaskaTue, Sep 5, 11:59 AM AKDT · 3313 days ago · 25 km deep · 80 km away
15. 3.6219 km SE of Nikolski, AlaskaTue, Sep 5, 8:13 PM AKDT · 3313 days ago · 10 km deep · 96 km away
16. 2.480 km SSW of Unalaska, AlaskaTue, Sep 5, 8:26 PM AKDT · 3313 days ago · 26 km deep · 62 km away
17. 3.767 km SE of Unalaska, AlaskaWed, Sep 6, 7:46 PM AKDT · 3312 days ago · 26 km deep · 99 km away
18. 1.575 km SE of Unalaska, AlaskaWed, Sep 6, 8:29 PM AKDT · 3312 days ago · 26 km deep · 97 km away
19. 3.776 km SE of Unalaska, AlaskaThu, Sep 7, 7:01 AM AKDT · 3312 days ago · 38 km deep · 99 km away
20. 1.768 km SE of Unalaska, AlaskaThu, Sep 7, 7:14 AM AKDT · 3312 days ago · 31 km deep · 100 km away
21. 3.768 km SE of Unalaska, AlaskaThu, Sep 7, 7:42 AM AKDT · 3312 days ago · 41 km deep · 99 km away
22. 1.997 km SE of Unalaska, AlaskaFri, Sep 8, 6:23 AM AKDT · 3311 days ago · 4 km deep · 75 km away
23. 1.772 km SSE of Unalaska, AlaskaSat, Sep 9, 10:44 AM AKDT · 3309 days ago · 21 km deep · 68 km away
24. 1.868 km SE of Unalaska, AlaskaSun, Sep 10, 12:45 AM AKDT · 3309 days ago · 28 km deep · 99 km away
25. 2.479 km S of Unalaska, AlaskaSun, Sep 10, 1:21 AM AKDT · 3309 days ago · 26 km deep · 58 km away
26. 1.679 km SW of Unalaska, AlaskaSun, Sep 10, 5:06 AM AKDT · 3309 days ago · 13 km deep · 92 km away
27. 2.471 km SSW of Unalaska, AlaskaMon, Sep 11, 12:33 PM AKDT · 3307 days ago · 13 km deep · 78 km away
28. 3.382 km S of Unalaska, AlaskaMon, Sep 11, 9:17 PM AKDT · 3307 days ago · 26 km deep · 55 km away
29. 1.972 km SSW of Unalaska, AlaskaMon, Sep 11, 9:41 PM AKDT · 3307 days ago · 45 km deep · 66 km away
30. 2.1126 km S of Unalaska, AlaskaWed, Sep 13, 1:23 AM AKDT · 3306 days ago · 39 km deep · 9 km away
31. 1.875 km SE of Unalaska, AlaskaThu, Sep 14, 4:03 AM AKDT · 3305 days ago · 22 km deep · 98 km away
32. 3.567 km SE of Unalaska, AlaskaThu, Sep 14, 8:25 AM AKDT · 3304 days ago · 31 km deep · 90 km away
33. 3.580 km S of Unalaska, AlaskaThu, Sep 14, 11:06 AM AKDT · 3304 days ago · 45 km deep · 58 km away
34. 1.778 km SE of Unalaska, AlaskaTue, Sep 19, 1:34 PM AKDT · 3299 days ago · 20 km deep · 99 km away
35. 1.980 km S of Unalaska, AlaskaSun, Sep 24, 3:10 AM AKDT · 3295 days ago · 26 km deep · 57 km away
36. 2.4116 km SSE of Unalaska, AlaskaWed, Sep 27, 8:37 AM AKDT · 3291 days ago · 13 km deep · 66 km away
37. 4.3120 km SSE of Unalaska, AlaskaWed, Sep 27, 9:14 AM AKDT · 3291 days ago · 25 km deep · 67 km away
38. 2.1124 km S of Unalaska, AlaskaSat, Sep 30, 4:37 PM AKDT · 3288 days ago · 15 km deep · 18 km away
39. 1.884 km SSW of Unalaska, AlaskaSat, Sep 30, 6:26 PM AKDT · 3288 days ago · 26 km deep · 56 km away
40. 1.553 km SSE of Unalaska, AlaskaMon, Oct 2, 4:24 AM AKDT · 3287 days ago · 45 km deep · 91 km away
41. 2.737 km S of Unalaska, AlaskaMon, Oct 2, 6:40 PM AKDT · 3286 days ago · 57 km deep · 97 km away
42. 2.781 km E of Nikolski, AlaskaMon, Oct 2, 7:35 PM AKDT · 3286 days ago · 32 km deep · 87 km away
43. 2.684 km S of Unalaska, AlaskaTue, Oct 3, 1:26 AM AKDT · 3286 days ago · 29 km deep · 55 km away
44. 1.639 km SSE of Unalaska, AlaskaTue, Oct 3, 5:53 PM AKDT · 3285 days ago · 24 km deep · 99 km away
45. 2.5187 km SSE of Unalaska, AlaskaWed, Oct 4, 9:39 AM AKDT · 3284 days ago · 20 km deep · 67 km away
46. 2.290 km SE of Unalaska, AlaskaThu, Oct 5, 9:58 AM AKDT · 3283 days ago · 20 km deep · 89 km away
47. 2.1Fox Islands, Aleutian Islands, AlaskaSat, Oct 7, 5:19 AM AKDT · 3282 days ago · 76 km deep · 74 km away
48. 4.167 km SW of Unalaska, AlaskaMon, Oct 9, 2:52 PM AKDT · 3279 days ago · 96 km deep · 93 km away
49. 2.078 km E of Nikolski, AlaskaThu, Oct 12, 8:23 AM AKDT · 3276 days ago · 37 km deep · 87 km away
50. 1.797 km ENE of Nikolski, AlaskaSun, Oct 15, 1:08 PM AKDT · 3273 days ago · 48 km deep · 87 km away
51. 1.677 km S of Unalaska, AlaskaMon, Oct 16, 10:48 AM AKDT · 3272 days ago · 22 km deep · 58 km away
52. 1.950 km SE of Unalaska, AlaskaTue, Oct 17, 5:42 AM AKDT · 3272 days ago · 26 km deep · 99 km away
53. 2.280 km E of Nikolski, AlaskaWed, Oct 18, 2:24 PM AKDT · 3270 days ago · 26 km deep · 83 km away
54. 1.872 km SE of Unalaska, AlaskaFri, Oct 20, 4:33 PM AKDT · 3268 days ago · 21 km deep · 96 km away

Before

1. 2.6124 km S of Unalaska, AlaskaMon, Aug 21, 6:55 PM AKDT · 3328 days ago · 8 km deep · 28 km away
2. 2.2137 km ESE of Nikolski, AlaskaMon, Aug 21, 3:31 AM AKDT · 3329 days ago · 20 km deep · 29 km away
3. 1.8105 km E of Nikolski, AlaskaFri, Aug 18, 6:38 AM AKDT · 3332 days ago · 35 km deep · 59 km away
4. 1.873 km S of Unalaska, AlaskaWed, Aug 16, 12:44 PM AKDT · 3333 days ago · 36 km deep · 63 km away
5. 2.979 km S of Unalaska, AlaskaWed, Aug 16, 12:00 PM AKDT · 3333 days ago · 35 km deep · 56 km away
6. 2.168 km SW of Unalaska, AlaskaWed, Aug 16, 10:08 AM AKDT · 3333 days ago · 15 km deep · 100 km away
7. 1.791 km SSW of Unalaska, AlaskaWed, Aug 16, 4:07 AM AKDT · 3334 days ago · 15 km deep · 60 km away
8. 1.8126 km SSW of Unalaska, AlaskaTue, Aug 15, 2:37 AM AKDT · 3335 days ago · 66 km deep · 31 km away
9. 2.6103 km S of Unalaska, AlaskaSun, Aug 13, 11:59 PM AKDT · 3336 days ago · 27 km deep · 40 km away
10. 2.3140 km S of Unalaska, AlaskaSun, Aug 13, 11:02 AM AKDT · 3336 days ago · 26 km deep · 13 km away
11. 1.9132 km S of Unalaska, AlaskaSat, Aug 12, 8:20 PM AKDT · 3337 days ago · 26 km deep · 15 km away
12. 2.273 km S of Unalaska, AlaskaFri, Aug 11, 11:14 AM AKDT · 3338 days ago · 26 km deep · 61 km away
13. 2.1113 km SE of Unalaska, AlaskaFri, Aug 11, 6:20 AM AKDT · 3339 days ago · 24 km deep · 74 km away
14. 1.682 km S of Unalaska, AlaskaFri, Aug 11, 4:51 AM AKDT · 3339 days ago · 26 km deep · 55 km away
15. 2.4125 km ESE of Nikolski, AlaskaThu, Aug 10, 1:47 PM AKDT · 3339 days ago · 54 km deep · 67 km away
16. 2.878 km SE of Unalaska, AlaskaWed, Aug 9, 4:32 PM AKDT · 3340 days ago · 17 km deep · 89 km away
17. 1.870 km E of Nikolski, AlaskaWed, Aug 9, 2:51 PM AKDT · 3340 days ago · 45 km deep · 95 km away
18. 1.8south of the Aleutian IslandsWed, Aug 9, 8:52 AM AKDT · 3340 days ago · 26 km deep · 93 km away
19. 1.893 km SE of Unalaska, AlaskaTue, Aug 8, 9:15 AM AKDT · 3341 days ago · 36 km deep · 81 km away
20. 3.463 km S of Unalaska, AlaskaMon, Aug 7, 10:43 PM AKDT · 3342 days ago · 91 km deep · 73 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak017ar1nv70 (also filed as ak16750664). Read Fri, Oct 2, 2026, 3:46 AM UTC.