M1.8 earthquake 229 km WSW of Adak, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Sun, Aug 20, 2017, 9:14 PM HADT

UTC

2017-08-21 06:14:09 UTC

Depth

16.6 km (10.3 mi), shallow

Epicenter

51.280° N, 179.799° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

16

After

1. 2.0182 km W of Adak, AlaskaMon, Aug 21, 3:43 AM HADT · 3329 days ago · 80 km deep · 59 km away
2. 2.0292 km WSW of Adak, AlaskaTue, Aug 22, 12:49 AM GMT+12 · 3329 days ago · 18 km deep · 63 km away
3. 2.0134 km W of Adak, AlaskaMon, Aug 21, 2:06 PM HADT · 3328 days ago · 14 km deep · 98 km away
4. 2.7215 km WSW of Adak, AlaskaMon, Aug 21, 6:18 PM HADT · 3328 days ago · 16 km deep · 20 km away
5. 4.4244 km WSW of Adak, AlaskaTue, Aug 22, 12:10 PM GMT-12 · 3327 days ago · 10 km deep · 30 km away
6. 2.5133 km WSW of Adak, AlaskaTue, Aug 22, 7:27 PM HADT · 3327 days ago · 17 km deep · 96 km away
7. 3.2Rat Islands, Aleutian Islands, AlaskaWed, Aug 23, 4:59 PM GMT+12 · 3327 days ago · 19 km deep · 87 km away
8. 2.3238 km WSW of Adak, AlaskaWed, Aug 23, 8:36 AM GMT-12 · 3327 days ago · 25 km deep · 16 km away
9. 2.4262 km W of Adak, AlaskaThu, Aug 24, 11:06 AM GMT+12 · 3326 days ago · 79 km deep · 65 km away
10. 2.1154 km W of Adak, AlaskaThu, Aug 24, 12:42 AM HADT · 3326 days ago · 78 km deep · 82 km away
11. 1.7Rat Islands, Aleutian Islands, AlaskaFri, Aug 25, 1:19 AM GMT+12 · 3326 days ago · 36 km deep · 96 km away
12. 1.8132 km W of Adak, AlaskaThu, Aug 24, 4:54 AM HADT · 3326 days ago · 12 km deep · 100 km away
13. 2.4145 km WSW of Adak, AlaskaThu, Aug 24, 3:36 PM HADT · 3325 days ago · 50 km deep · 92 km away
14. 3.1Rat Islands, Aleutian Islands, AlaskaFri, Aug 25, 1:32 PM GMT+12 · 3325 days ago · 56 km deep · 97 km away
15. 2.4201 km WSW of Adak, AlaskaFri, Aug 25, 6:00 AM HADT · 3325 days ago · 58 km deep · 31 km away
16. 2.5291 km W of Adak, AlaskaSat, Aug 26, 5:50 PM GMT+12 · 3324 days ago · 71 km deep · 79 km away
17. 2.1133 km W of Adak, AlaskaSat, Aug 26, 1:42 AM HADT · 3324 days ago · 14 km deep · 99 km away
18. 2.5129 km WSW of Adak, AlaskaSat, Aug 26, 8:46 AM HADT · 3324 days ago · 18 km deep · 100 km away
19. 2.5285 km WSW of Adak, AlaskaSun, Aug 27, 8:23 PM GMT+12 · 3323 days ago · 5 km deep · 56 km away
20. 2.4Rat Islands, Aleutian Islands, AlaskaSun, Aug 27, 8:50 PM GMT+12 · 3323 days ago · 13 km deep · 95 km away
21. 1.9168 km W of Adak, AlaskaSun, Aug 27, 4:12 AM HADT · 3323 days ago · 10 km deep · 74 km away
22. 2.2292 km WSW of Adak, AlaskaMon, Aug 28, 6:11 AM GMT+12 · 3323 days ago · 18 km deep · 63 km away
23. 2.1295 km WSW of Adak, AlaskaMon, Aug 28, 6:15 AM GMT+12 · 3323 days ago · 20 km deep · 66 km away
24. 2.0208 km WSW of Adak, AlaskaSun, Aug 27, 8:01 PM HADT · 3322 days ago · 26 km deep · 21 km away
25. 1.8130 km WSW of Adak, AlaskaSun, Aug 27, 11:39 PM HADT · 3322 days ago · 13 km deep · 100 km away
26. 1.7298 km W of Adak, AlaskaWed, Aug 30, 5:03 PM GMT+12 · 3320 days ago · 13 km deep · 85 km away
27. 2.2248 km WSW of Adak, AlaskaWed, Aug 30, 9:47 PM GMT+12 · 3320 days ago · 5 km deep · 23 km away
28. 2.5130 km WSW of Adak, AlaskaWed, Aug 30, 11:19 AM HADT · 3320 days ago · 10 km deep · 99 km away
29. 2.1223 km W of Adak, AlaskaWed, Aug 30, 7:57 PM HADT · 3319 days ago · 86 km deep · 49 km away
30. 2.0Andreanof Islands, Aleutian Islands, AlaskaWed, Aug 30, 10:27 PM HADT · 3319 days ago · 51 km deep · 88 km away
31. 1.8273 km WSW of Adak, AlaskaFri, Sep 1, 1:46 AM GMT+12 · 3319 days ago · 33 km deep · 45 km away
32. 1.9296 km WSW of Adak, AlaskaFri, Sep 1, 3:34 AM GMT+12 · 3319 days ago · 16 km deep · 67 km away
33. 2.5Rat Islands, Aleutian Islands, AlaskaFri, Sep 1, 9:09 AM GMT+12 · 3318 days ago · 21 km deep · 78 km away
34. 2.5198 km WSW of Adak, AlaskaThu, Aug 31, 7:22 PM HADT · 3318 days ago · 30 km deep · 36 km away
35. 2.8Andreanof Islands, Aleutian Islands, AlaskaThu, Aug 31, 10:59 PM GMT-12 · 3318 days ago · 11 km deep · 36 km away
36. 2.4132 km W of Adak, AlaskaFri, Sep 1, 3:17 AM HADT · 3318 days ago · 11 km deep · 99 km away
37. 2.0158 km SW of Adak, AlaskaFri, Sep 1, 6:38 AM HADT · 3318 days ago · 45 km deep · 91 km away
38. 2.1167 km WSW of Adak, AlaskaFri, Sep 1, 1:50 PM HADT · 3317 days ago · 42 km deep · 62 km away
39. 2.1131 km WSW of Adak, AlaskaFri, Sep 1, 5:53 PM HADT · 3317 days ago · 43 km deep · 99 km away
40. 2.0132 km W of Adak, AlaskaSat, Sep 2, 11:20 AM HADT · 3317 days ago · 13 km deep · 100 km away
41. 2.4223 km W of Adak, AlaskaSun, Sep 3, 3:36 AM HADT · 3316 days ago · 89 km deep · 44 km away
42. 2.0136 km W of Adak, AlaskaSun, Sep 3, 8:32 AM HADT · 3316 days ago · 80 km deep · 96 km away
43. 4.0280 km WSW of Adak, AlaskaMon, Sep 4, 5:53 AM GMT+12 · 3316 days ago · 10 km deep · 57 km away
44. 3.1133 km WSW of Adak, AlaskaSun, Sep 3, 9:37 AM HADT · 3316 days ago · 4 km deep · 99 km away
45. 2.5146 km WSW of Adak, AlaskaTue, Sep 5, 2:59 AM HADT · 3314 days ago · 66 km deep · 85 km away
46. 3.1235 km WSW of Adak, AlaskaThu, Sep 7, 4:45 AM HADT · 3312 days ago · 20 km deep · 7 km away
47. 2.0Rat Islands, Aleutian Islands, AlaskaFri, Sep 8, 4:12 PM GMT+12 · 3311 days ago · 45 km deep · 81 km away
48. 3.0136 km WSW of Adak, AlaskaSun, Sep 10, 3:38 PM HADT · 3308 days ago · 18 km deep · 93 km away
49. 2.0270 km WSW of Adak, AlaskaTue, Sep 12, 12:44 AM GMT+12 · 3308 days ago · 49 km deep · 46 km away
50. 3.5130 km W of Adak, AlaskaTue, Sep 12, 7:04 PM HADT · 3306 days ago · 10 km deep · 100 km away
51. 2.7271 km W of Adak, AlaskaMon, Sep 18, 5:14 PM GMT+12 · 3301 days ago · 88 km deep · 74 km away
52. 3.0175 km W of Adak, AlaskaMon, Sep 18, 7:17 AM HADT · 3301 days ago · 121 km deep · 96 km away
53. 2.1189 km WSW of Adak, AlaskaMon, Sep 18, 10:50 PM HADT · 3300 days ago · 34 km deep · 40 km away
54. 3.0196 km WSW of Adak, AlaskaTue, Sep 19, 3:46 AM HADT · 3300 days ago · 6 km deep · 50 km away
55. 2.1Rat Islands, Aleutian Islands, AlaskaSun, Sep 24, 1:30 PM GMT+12 · 3295 days ago · 53 km deep · 30 km away
56. 1.9129 km WSW of Adak, AlaskaSat, Sep 23, 8:52 PM HADT · 3295 days ago · 13 km deep · 100 km away
57. 1.7156 km WSW of Adak, AlaskaSun, Sep 24, 1:57 AM HADT · 3295 days ago · 34 km deep · 89 km away
58. 1.8167 km W of Adak, AlaskaSun, Sep 24, 9:05 AM HADT · 3295 days ago · 7 km deep · 71 km away
59. 2.3212 km W of Adak, AlaskaSun, Sep 24, 10:57 AM HADT · 3295 days ago · 87 km deep · 45 km away
60. 3.9130 km WSW of Adak, AlaskaSun, Sep 24, 11:36 AM HADT · 3295 days ago · 11 km deep · 99 km away

The first 60 of 102.

Before

1. 2.0Andreanof Islands, Aleutian Islands, AlaskaSun, Aug 20, 1:46 PM HADT · 3329 days ago · 80 km deep · 48 km away
2. 3.1277 km WSW of Adak, AlaskaMon, Aug 21, 12:28 AM GMT+12 · 3330 days ago · 30 km deep · 53 km away
3. 2.1186 km SW of Adak, AlaskaSat, Aug 19, 2:11 PM HADT · 3330 days ago · 21 km deep · 92 km away
4. 1.8186 km WSW of Adak, AlaskaSat, Aug 19, 4:16 AM HADT · 3331 days ago · 68 km deep · 46 km away
5. 2.2Andreanof Islands, Aleutian Islands, AlaskaFri, Aug 18, 10:21 PM HADT · 3331 days ago · 47 km deep · 92 km away
6. 2.1Rat Islands, Aleutian Islands, AlaskaSat, Aug 19, 9:05 AM GMT+12 · 3332 days ago · 14 km deep · 99 km away
7. 3.6189 km WSW of Adak, AlaskaFri, Aug 18, 7:27 AM HADT · 3332 days ago · 52 km deep · 57 km away
8. 2.2Rat Islands, Aleutian Islands, AlaskaFri, Aug 18, 7:55 PM GMT+12 · 3332 days ago · 13 km deep · 97 km away
9. 2.3Rat Islands, Aleutian Islands, AlaskaFri, Aug 18, 5:21 PM GMT+12 · 3332 days ago · 6 km deep · 99 km away
10. 2.4Rat Islands, Aleutian Islands, AlaskaFri, Aug 18, 1:44 PM GMT+12 · 3332 days ago · 13 km deep · 98 km away
11. 4.8Rat Islands, Aleutian Islands, AlaskaFri, Aug 18, 1:16 PM GMT+12 · 3332 days ago · 29 km deep · 93 km away
12. 2.2249 km WSW of Adak, AlaskaFri, Aug 18, 6:06 AM GMT+12 · 3333 days ago · 17 km deep · 22 km away
13. 2.3133 km W of Adak, AlaskaWed, Aug 16, 7:01 PM HADT · 3333 days ago · 8 km deep · 98 km away
14. 2.2134 km W of Adak, AlaskaWed, Aug 16, 6:50 PM HADT · 3333 days ago · 15 km deep · 98 km away
15. 3.0130 km WSW of Adak, AlaskaWed, Aug 16, 11:33 AM HADT · 3334 days ago · 10 km deep · 100 km away
16. 2.5260 km WSW of Adak, AlaskaThu, Aug 17, 7:16 AM GMT+12 · 3334 days ago · 35 km deep · 46 km away
17. 2.0Rat Islands, Aleutian Islands, AlaskaThu, Aug 17, 4:14 AM GMT+12 · 3334 days ago · 42 km deep · 80 km away
18. 3.5249 km WSW of Adak, AlaskaWed, Aug 16, 1:04 AM GMT-12 · 3334 days ago · 2 km deep · 50 km away
19. 2.8139 km WSW of Adak, AlaskaTue, Aug 15, 8:26 PM HADT · 3334 days ago · 18 km deep · 90 km away
20. 1.9130 km WSW of Adak, AlaskaTue, Aug 15, 5:25 PM HADT · 3334 days ago · 14 km deep · 98 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak017apfvhex. Read Fri, Oct 2, 2026, 8:38 AM UTC.