M2.1 earthquake 81 km S of Unalaska, Alaska

Magnitude

2.1 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Tue, Dec 20, 2016, 5:05 AM AKST

UTC

2016-12-20 14:05:35 UTC

Depth

25.3 km (15.7 mi), shallow

Epicenter

53.145° N, 166.641° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

16

• Unalaska, AlaskaPopulation 4,491. Forecast81 kmS

After

1. 2.173 km E of Nikolski, AlaskaTue, Dec 20, 11:12 AM AKST · 3574 days ago · 46 km deep · 81 km away
2. 2.028 km SSE of Unalaska, AlaskaTue, Dec 20, 7:06 PM AKST · 3573 days ago · 93 km deep · 62 km away
3. 2.171 km S of Unalaska, AlaskaWed, Dec 21, 8:43 PM AKST · 3572 days ago · 26 km deep · 10 km away
4. 1.776 km SW of Unalaska, AlaskaThu, Dec 22, 5:46 PM AKST · 3571 days ago · 21 km deep · 55 km away
5. 3.893 km SSW of Unalaska, AlaskaFri, Dec 23, 12:19 PM AKST · 3570 days ago · 48 km deep · 37 km away
6. 1.949 km S of Akutan, AlaskaSat, Dec 24, 11:14 PM AKST · 3569 days ago · 61 km deep · 86 km away
7. 2.083 km E of Nikolski, AlaskaSat, Dec 24, 11:27 PM AKST · 3569 days ago · 49 km deep · 67 km away
8. 1.865 km SW of Unalaska, AlaskaSun, Dec 25, 4:40 AM AKST · 3569 days ago · 5 km deep · 55 km away
9. 2.492 km ESE of Nikolski, AlaskaSun, Dec 25, 10:31 AM AKST · 3569 days ago · 55 km deep · 73 km away
10. 2.214 km SSW of Unalaska, AlaskaTue, Dec 27, 1:56 AM AKST · 3567 days ago · 83 km deep · 67 km away
11. 3.0122 km S of Unalaska, AlaskaWed, Dec 28, 12:39 AM AKST · 3566 days ago · 60 km deep · 41 km away
12. 2.075 km E of Nikolski, AlaskaWed, Dec 28, 1:42 PM AKST · 3565 days ago · 30 km deep · 78 km away
13. 3.616 km ESE of Unalaska, AlaskaWed, Dec 28, 1:45 PM AKST · 3565 days ago · 72 km deep · 77 km away
14. 2.9129 km S of Unalaska, AlaskaWed, Dec 28, 7:59 PM AKST · 3565 days ago · 10 km deep · 48 km away
15. 2.469 km ESE of Nikolski, AlaskaWed, Dec 28, 9:37 PM AKST · 3565 days ago · 30 km deep · 92 km away
16. 2.979 km S of Unalaska, AlaskaFri, Dec 30, 7:45 PM AKST · 3563 days ago · 35 km deep · 15 km away
17. 2.5138 km S of Unalaska, AlaskaSun, Jan 1, 1:05 AM AKST · 3562 days ago · 48 km deep · 61 km away
18. 2.586 km WSW of Unalaska, AlaskaMon, Jan 2, 2:08 AM AKST · 3561 days ago · 103 km deep · 80 km away
19. 2.035 km S of Unalaska, AlaskaMon, Jan 2, 7:52 PM AKST · 3560 days ago · 85 km deep · 48 km away
20. 1.983 km WSW of Unalaska, AlaskaMon, Jan 2, 10:58 PM AKST · 3560 days ago · 104 km deep · 75 km away
21. 3.926 km SSW of Unalaska, AlaskaMon, Jan 2, 11:05 PM AKST · 3560 days ago · 63 km deep · 56 km away · felt by 1
22. 2.136 km SSW of Unalaska, AlaskaMon, Jan 2, 11:20 PM AKST · 3560 days ago · 65 km deep · 46 km away
23. 1.775 km SE of Unalaska, AlaskaMon, Jan 2, 11:30 PM AKST · 3560 days ago · 26 km deep · 75 km away
24. 2.1113 km S of Unalaska, AlaskaThu, Jan 5, 1:56 PM AKST · 3557 days ago · 5 km deep · 32 km away
25. 2.2125 km S of Unalaska, AlaskaFri, Jan 6, 9:05 AM AKST · 3557 days ago · 46 km deep · 45 km away
26. 1.771 km SW of Unalaska, AlaskaFri, Jan 6, 6:34 PM AKST · 3556 days ago · 13 km deep · 60 km away
27. 2.5117 km ESE of Nikolski, AlaskaSat, Jan 7, 7:21 AM AKST · 3556 days ago · 26 km deep · 99 km away
28. 1.664 km SSE of Akutan, AlaskaSun, Jan 8, 3:17 AM AKST · 3555 days ago · 26 km deep · 92 km away
29. 1.566 km SW of Unalaska, AlaskaSun, Jan 8, 7:28 AM AKST · 3555 days ago · 10 km deep · 58 km away
30. 2.3151 km S of Unalaska, AlaskaMon, Jan 9, 6:50 PM AKST · 3553 days ago · 51 km deep · 70 km away
31. 1.698 km S of Unalaska, AlaskaTue, Jan 10, 5:57 AM AKST · 3553 days ago · 10 km deep · 17 km away
32. 3.966 km SSE of Unalaska, AlaskaTue, Jan 10, 6:28 AM AKST · 3553 days ago · 32 km deep · 32 km away · felt by 2
33. 3.479 km SSE of Akutan, AlaskaTue, Jan 10, 8:58 AM AKST · 3553 days ago · 46 km deep · 88 km away
34. 3.634 km SSW of Unalaska, AlaskaTue, Jan 10, 10:19 AM AKST · 3553 days ago · 81 km deep · 50 km away
35. 2.7134 km S of Unalaska, AlaskaWed, Jan 11, 1:24 AM AKST · 3552 days ago · 10 km deep · 53 km away
36. 1.728 km SE of Unalaska, AlaskaWed, Jan 11, 7:28 PM AKST · 3551 days ago · 70 km deep · 65 km away
37. 1.664 km SE of Unalaska, AlaskaSat, Jan 14, 8:07 PM AKST · 3548 days ago · 45 km deep · 70 km away
38. 1.968 km SW of Unalaska, AlaskaSun, Jan 15, 7:47 PM AKST · 3547 days ago · 22 km deep · 62 km away
39. 1.869 km SW of Unalaska, AlaskaSun, Jan 15, 8:10 PM AKST · 3547 days ago · 14 km deep · 54 km away
40. 1.853 km SW of Unalaska, AlaskaMon, Jan 16, 7:16 AM AKST · 3547 days ago · 14 km deep · 57 km away
41. 2.2131 km ESE of Nikolski, AlaskaMon, Jan 16, 8:46 AM AKST · 3547 days ago · 17 km deep · 59 km away
42. 1.968 km ENE of Nikolski, AlaskaMon, Jan 16, 1:35 PM AKST · 3546 days ago · 68 km deep · 85 km away
43. 2.684 km SSW of Unalaska, AlaskaMon, Jan 16, 7:29 PM AKST · 3546 days ago · 41 km deep · 17 km away
44. 1.737 km SSE of Unalaska, AlaskaTue, Jan 17, 9:24 PM AKST · 3545 days ago · 63 km deep · 49 km away
45. 1.868 km SE of Unalaska, AlaskaWed, Jan 18, 10:05 AM AKST · 3545 days ago · 35 km deep · 66 km away
46. 2.7100 km E of Nikolski, AlaskaThu, Jan 19, 2:56 AM AKST · 3544 days ago · 40 km deep · 54 km away
47. 2.373 km SW of Unalaska, AlaskaThu, Jan 19, 11:34 AM AKST · 3544 days ago · 75 km deep · 64 km away
48. 2.291 km SSW of Unalaska, AlaskaFri, Jan 20, 5:35 PM AKST · 3542 days ago · 43 km deep · 42 km away
49. 2.435 km SSW of Unalaska, AlaskaFri, Jan 20, 9:33 PM AKST · 3542 days ago · 70 km deep · 52 km away
50. 2.074 km SSE of Akutan, AlaskaSat, Jan 21, 3:03 AM AKST · 3542 days ago · 45 km deep · 98 km away
51. 2.735 km S of Akutan, AlaskaSat, Jan 21, 3:38 PM AKST · 3541 days ago · 71 km deep · 92 km away
52. 1.590 km SW of Unalaska, AlaskaSat, Jan 21, 9:59 PM AKST · 3541 days ago · 13 km deep · 52 km away
53. 2.167 km SE of Unalaska, AlaskaSat, Jan 21, 11:51 PM AKST · 3541 days ago · 33 km deep · 59 km away
54. 2.588 km SE of Unalaska, AlaskaSun, Jan 22, 9:48 PM AKST · 3540 days ago · 34 km deep · 68 km away
55. 1.853 km SW of Unalaska, AlaskaSun, Jan 22, 11:31 PM AKST · 3540 days ago · 14 km deep · 60 km away
56. 1.759 km SSE of Unalaska, AlaskaMon, Jan 23, 2:57 PM AKST · 3539 days ago · 41 km deep · 32 km away
57. 2.4123 km SSE of Unalaska, AlaskaTue, Jan 24, 12:16 PM AKST · 3538 days ago · 7 km deep · 74 km away
58. 1.939 km SE of Unalaska, AlaskaTue, Jan 24, 2:43 PM AKST · 3538 days ago · 78 km deep · 58 km away
59. 2.3162 km ESE of Nikolski, AlaskaTue, Jan 24, 3:37 PM AKST · 3538 days ago · 37 km deep · 91 km away
60. 2.04 km W of Dutch Harbor, AlaskaThu, Jan 26, 11:42 PM AKST · 3536 days ago · 89 km deep · 83 km away

The first 60 of 94.

Before

1. 1.759 km SSE of Akutan, AlaskaMon, Dec 19, 8:34 PM AKST · 3574 days ago · 21 km deep · 94 km away
2. 2.180 km S of Unalaska, AlaskaSun, Dec 18, 5:48 PM AKST · 3575 days ago · 36 km deep · 8 km away
3. 2.383 km ENE of Nikolski, AlaskaSat, Dec 17, 10:30 PM AKST · 3576 days ago · 85 km deep · 77 km away
4. 2.6133 km S of Unalaska, AlaskaWed, Dec 14, 4:28 AM AKST · 3580 days ago · 21 km deep · 52 km away
5. 1.648 km S of Unalaska, AlaskaSun, Dec 11, 1:52 PM AKST · 3582 days ago · 65 km deep · 34 km away
6. 2.09 km ENE of Dutch Harbor, AlaskaSun, Dec 11, 1:42 AM AKST · 3583 days ago · 86 km deep · 87 km away
7. 3.681 km SSW of Unalaska, AlaskaSat, Dec 10, 9:27 PM AKST · 3583 days ago · 26 km deep · 10 km away
8. 2.685 km SSW of Unalaska, AlaskaSat, Dec 10, 9:24 PM AKST · 3583 days ago · 26 km deep · 10 km away
9. 1.764 km E of Nikolski, AlaskaSat, Dec 10, 3:32 PM AKST · 3583 days ago · 52 km deep · 86 km away
10. 2.435 km ESE of Unalaska, AlaskaFri, Dec 9, 6:22 PM AKST · 3584 days ago · 76 km deep · 85 km away
11. 1.571 km SSE of Akutan, AlaskaFri, Dec 9, 9:59 AM AKST · 3585 days ago · 19 km deep · 91 km away
12. 2.055 km SW of Unalaska, AlaskaThu, Dec 8, 6:20 PM AKST · 3585 days ago · 16 km deep · 54 km away
13. 1.894 km SW of Unalaska, AlaskaThu, Dec 8, 2:52 AM AKST · 3586 days ago · 26 km deep · 56 km away
14. 2.066 km SSE of Akutan, AlaskaWed, Dec 7, 7:41 AM AKST · 3587 days ago · 62 km deep · 98 km away
15. 1.955 km S of Unalaska, AlaskaWed, Dec 7, 7:40 AM AKST · 3587 days ago · 70 km deep · 26 km away
16. 1.879 km SSW of Unalaska, AlaskaTue, Dec 6, 7:00 PM AKST · 3587 days ago · 39 km deep · 23 km away
17. 1.9Fox Islands, Aleutian Islands, AlaskaTue, Dec 6, 5:51 PM AKST · 3587 days ago · 20 km deep · 8 km away
18. 1.814 km N of Dutch Harbor, AlaskaTue, Dec 6, 11:43 AM AKST · 3588 days ago · 86 km deep · 97 km away
19. 1.823 km W of Dutch Harbor, AlaskaSun, Dec 4, 5:12 PM AKST · 3589 days ago · 5 km deep · 81 km away
20. 2.088 km SSW of Unalaska, AlaskaSat, Dec 3, 7:03 AM AKST · 3591 days ago · 25 km deep · 23 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak016gbc5f25 (also filed as ak14772923). Read Sat, Oct 3, 2026, 8:14 AM UTC.