M2.1 earthquake 48 km S of Adak, Alaska

Magnitude

2.1 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Thu, Dec 21, 2017, 3:21 PM HAST

UTC

2017-12-22 01:21:48 UTC

Depth

44.1 km (27.4 mi), shallow

Epicenter

51.440° N, 176.604° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

19

After

1. 2.153 km S of Adak, AlaskaThu, Dec 21, 3:36 PM HAST · 3206 days ago · 17 km deep · 7 km away
2. 3.340 km SSE of Adak, AlaskaThu, Dec 21, 5:43 PM HAST · 3206 days ago · 38 km deep · 19 km away
3. 2.465 km WSW of Adak, AlaskaSun, Dec 24, 5:33 AM HAST · 3204 days ago · 66 km deep · 76 km away
4. 2.578 km SSE of Adak, AlaskaSun, Dec 24, 10:23 AM HAST · 3203 days ago · 41 km deep · 35 km away
5. 2.484 km ESE of Adak, AlaskaSun, Dec 24, 3:35 PM HAST · 3203 days ago · 64 km deep · 71 km away
6. 2.678 km ESE of Adak, AlaskaMon, Dec 25, 8:09 PM HAST · 3202 days ago · 50 km deep · 71 km away
7. 1.870 km SSE of Adak, AlaskaTue, Dec 26, 4:13 AM HAST · 3202 days ago · 25 km deep · 34 km away
8. 2.164 km ESE of Adak, AlaskaTue, Dec 26, 7:14 AM HAST · 3201 days ago · 37 km deep · 55 km away
9. 1.658 km W of Adak, AlaskaTue, Dec 26, 3:07 PM HAST · 3201 days ago · 72 km deep · 75 km away
10. 1.741 km SSW of Adak, AlaskaTue, Dec 26, 4:06 PM HAST · 3201 days ago · 45 km deep · 20 km away
11. 1.538 km SSE of Adak, AlaskaTue, Dec 26, 4:22 PM HAST · 3201 days ago · 31 km deep · 22 km away
12. 1.995 km WSW of Adak, AlaskaTue, Dec 26, 4:32 PM HAST · 3201 days ago · 13 km deep · 84 km away
13. 1.981 km SW of Adak, AlaskaTue, Dec 26, 8:27 PM HAST · 3201 days ago · 41 km deep · 60 km away
14. 2.2113 km SW of Adak, AlaskaThu, Dec 28, 12:33 AM HAST · 3200 days ago · 25 km deep · 96 km away
15. 3.1116 km SW of Adak, AlaskaThu, Dec 28, 9:22 PM HAST · 3199 days ago · 35 km deep · 96 km away
16. 1.9Andreanof Islands, Aleutian Islands, AlaskaSun, Dec 31, 1:29 AM HAST · 3197 days ago · 7 km deep · 37 km away
17. 3.852 km SE of Adak, AlaskaSun, Dec 31, 3:38 AM HAST · 3197 days ago · 38 km deep · 33 km away
18. 2.067 km SSE of Adak, AlaskaSun, Dec 31, 5:03 PM HAST · 3196 days ago · 12 km deep · 25 km away
19. 2.476 km SW of Adak, AlaskaMon, Jan 1, 3:42 PM HAST · 3195 days ago · 25 km deep · 65 km away
20. 2.046 km SE of Adak, AlaskaTue, Jan 2, 3:36 AM HAST · 3195 days ago · 7 km deep · 28 km away
21. 1.963 km SSW of Adak, AlaskaTue, Jan 2, 2:03 PM HAST · 3194 days ago · 41 km deep · 30 km away
22. 1.953 km SSE of Adak, AlaskaTue, Jan 2, 4:31 PM HAST · 3194 days ago · 13 km deep · 26 km away
23. 1.732 km S of Adak, AlaskaTue, Jan 2, 9:07 PM HAST · 3194 days ago · 46 km deep · 17 km away
24. 1.754 km SW of Adak, AlaskaTue, Jan 2, 9:21 PM HAST · 3194 days ago · 42 km deep · 35 km away
25. 1.7Andreanof Islands, Aleutian Islands, AlaskaTue, Jan 2, 11:19 PM HAST · 3194 days ago · 26 km deep · 21 km away
26. 1.864 km SE of Adak, AlaskaWed, Jan 3, 1:22 AM HAST · 3194 days ago · 23 km deep · 36 km away
27. 2.152 km SE of Adak, AlaskaWed, Jan 3, 2:54 AM HAST · 3194 days ago · 54 km deep · 30 km away
28. 3.977 km SE of Adak, AlaskaWed, Jan 3, 10:02 AM HAST · 3193 days ago · 30 km deep · 59 km away
29. 2.743 km SE of Adak, AlaskaWed, Jan 3, 4:07 PM HAST · 3193 days ago · 47 km deep · 31 km away
30. 1.738 km NE of Adak, AlaskaThu, Jan 4, 8:05 AM HAST · 3192 days ago · 3 km deep · 76 km away
31. 1.668 km W of Adak, AlaskaThu, Jan 4, 9:12 AM HAST · 3192 days ago · 25 km deep · 90 km away
32. 2.062 km SW of Adak, AlaskaThu, Jan 4, 9:25 AM HAST · 3192 days ago · 42 km deep · 39 km away
33. 2.358 km SW of Adak, AlaskaThu, Jan 4, 11:34 AM HAST · 3192 days ago · 41 km deep · 44 km away
34. 1.780 km E of Adak, AlaskaSat, Jan 6, 1:10 AM HAST · 3191 days ago · 26 km deep · 86 km away
35. 2.3112 km SSE of Adak, AlaskaSat, Jan 6, 8:29 AM HAST · 3190 days ago · 2 km deep · 74 km away
36. 2.248 km SE of Adak, AlaskaSun, Jan 7, 12:07 AM HAST · 3190 days ago · 25 km deep · 29 km away
37. 2.441 km WNW of Adak, AlaskaSun, Jan 7, 9:07 PM HAST · 3189 days ago · 78 km deep · 77 km away
38. 2.246 km S of Adak, AlaskaTue, Jan 9, 1:38 AM HAST · 3188 days ago · 42 km deep · 7 km away
39. 1.993 km WSW of Adak, AlaskaTue, Jan 9, 6:43 AM HAST · 3188 days ago · 32 km deep · 83 km away
40. 2.095 km ESE of Adak, AlaskaTue, Jan 9, 4:19 PM HAST · 3187 days ago · 42 km deep · 81 km away
41. 2.382 km SSE of Adak, AlaskaTue, Jan 9, 5:59 PM HAST · 3187 days ago · 40 km deep · 37 km away
42. 1.849 km WSW of Adak, AlaskaTue, Jan 9, 7:48 PM HAST · 3187 days ago · 28 km deep · 52 km away
43. 2.062 km SE of Adak, AlaskaTue, Jan 9, 8:01 PM HAST · 3187 days ago · 52 km deep · 49 km away
44. 2.1Andreanof Islands, Aleutian Islands, AlaskaTue, Jan 9, 8:40 PM HAST · 3187 days ago · 21 km deep · 91 km away
45. 2.573 km WNW of Adak, AlaskaTue, Jan 9, 11:28 PM HAST · 3187 days ago · 103 km deep · 99 km away
46. 2.163 km SSE of Adak, AlaskaWed, Jan 10, 2:35 AM HAST · 3187 days ago · 22 km deep · 22 km away
47. 1.9118 km SE of Adak, AlaskaWed, Jan 10, 3:20 AM HAST · 3187 days ago · 25 km deep · 95 km away
48. 1.876 km SW of Adak, AlaskaWed, Jan 10, 3:41 AM HAST · 3187 days ago · 44 km deep · 62 km away
49. 2.166 km SW of Adak, AlaskaWed, Jan 10, 8:18 PM HAST · 3186 days ago · 62 km deep · 51 km away
50. 1.7103 km WSW of Adak, AlaskaWed, Jan 10, 8:31 PM HAST · 3186 days ago · 66 km deep · 92 km away
51. 1.637 km ENE of Adak, AlaskaWed, Jan 10, 9:03 PM HAST · 3186 days ago · 102 km deep · 72 km away
52. 2.512 km S of Adak, AlaskaWed, Jan 10, 9:16 PM HAST · 3186 days ago · 78 km deep · 35 km away
53. 1.656 km SSW of Adak, AlaskaThu, Jan 11, 1:37 AM HAST · 3186 days ago · 45 km deep · 33 km away
54. 3.9112 km SW of Adak, AlaskaThu, Jan 11, 4:41 AM HAST · 3186 days ago · 54 km deep · 97 km away
55. 2.772 km SSW of Adak, AlaskaThu, Jan 11, 6:08 AM HAST · 3186 days ago · 30 km deep · 30 km away
56. 2.4108 km SW of Adak, AlaskaThu, Jan 11, 6:48 AM HAST · 3186 days ago · 52 km deep · 91 km away
57. 2.1108 km SW of Adak, AlaskaThu, Jan 11, 7:16 AM HAST · 3185 days ago · 26 km deep · 90 km away
58. 2.160 km SE of Adak, AlaskaThu, Jan 11, 1:16 PM HAST · 3185 days ago · 35 km deep · 36 km away
59. 2.1112 km SW of Adak, AlaskaThu, Jan 11, 8:00 PM HAST · 3185 days ago · 24 km deep · 93 km away
60. 2.261 km WSW of Adak, AlaskaFri, Jan 12, 2:32 AM HAST · 3185 days ago · 67 km deep · 66 km away

The first 60 of 192.

Before

1. 2.2115 km SW of Adak, AlaskaThu, Dec 21, 9:03 AM HAST · 3206 days ago · 25 km deep · 99 km away
2. 2.9112 km SW of Adak, AlaskaTue, Dec 19, 8:14 AM HAST · 3208 days ago · 32 km deep · 94 km away
3. 2.136 km WSW of Adak, AlaskaMon, Dec 18, 3:23 AM HAST · 3210 days ago · 32 km deep · 47 km away
4. 1.871 km WSW of Adak, AlaskaSun, Dec 17, 2:14 AM HAST · 3211 days ago · 38 km deep · 66 km away
5. 2.862 km SW of Adak, AlaskaSat, Dec 16, 10:29 PM HAST · 3211 days ago · 55 km deep · 47 km away
6. 2.397 km SW of Adak, AlaskaSat, Dec 16, 10:21 PM HAST · 3211 days ago · 23 km deep · 77 km away
7. 2.9102 km SSE of Adak, AlaskaSat, Dec 16, 7:35 PM HAST · 3211 days ago · 57 km deep · 59 km away
8. 2.7108 km SSE of Adak, AlaskaSat, Dec 16, 4:15 PM HAST · 3211 days ago · 30 km deep · 65 km away
9. 2.426 km NW of Adak, AlaskaSat, Dec 16, 12:41 PM HAST · 3211 days ago · 26 km deep · 71 km away
10. 2.6119 km SSE of Adak, AlaskaSat, Dec 16, 8:10 AM HAST · 3211 days ago · 33 km deep · 74 km away
11. 4.196 km SSE of Adak, AlaskaSat, Dec 16, 7:57 AM HAST · 3211 days ago · 34 km deep · 54 km away
12. 2.371 km W of Adak, AlaskaFri, Dec 15, 5:59 AM HAST · 3213 days ago · 88 km deep · 84 km away
13. 2.057 km ESE of Adak, AlaskaFri, Dec 15, 4:08 AM HAST · 3213 days ago · 55 km deep · 56 km away
14. 2.388 km ESE of Adak, AlaskaThu, Dec 14, 10:34 PM HAST · 3213 days ago · 49 km deep · 73 km away
15. 2.260 km SE of Adak, AlaskaThu, Dec 14, 10:08 PM HAST · 3213 days ago · 28 km deep · 41 km away
16. 1.875 km WSW of Adak, AlaskaThu, Dec 14, 2:24 PM HAST · 3213 days ago · 17 km deep · 66 km away
17. 2.280 km ESE of Adak, AlaskaWed, Dec 13, 6:05 PM HAST · 3214 days ago · 25 km deep · 67 km away
18. 1.921 km SW of Adak, AlaskaWed, Dec 13, 2:22 PM HAST · 3214 days ago · 65 km deep · 39 km away
19. 2.065 km S of Adak, AlaskaWed, Dec 13, 6:34 AM HAST · 3215 days ago · 15 km deep · 18 km away
20. 1.831 km SSE of Adak, AlaskaTue, Dec 12, 11:48 PM HAST · 3215 days ago · 42 km deep · 23 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak017gcs1l7e (also filed as ak17722946). Read Fri, Oct 2, 2026, 4:37 AM UTC.