M1.6 earthquake 66 km W of Tyonek, Alaska

Magnitude

1.6 (ml), micro

Local time

Tue, Dec 21, 2021, 11:12 AM AKST

UTC

2021-12-21 20:12:10 UTC

Depth

111.5 km (69.3 mi), intermediate-depth

Epicenter

61.016° N, 152.363° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

35

• Nikiski, AlaskaPopulation 4,493. Forecast69 kmWNW
• Anchorage, AlaskaPopulation 289,600. Forecast134 kmW

After

1. 1.5Southern AlaskaTue, Dec 21, 9:30 PM AKST · 1740 days ago · 89 km deep · 76 km away
2. 1.56 km S of Kenai, AlaskaTue, Dec 21, 11:47 PM AKST · 1740 days ago · 62 km deep · 83 km away
3. 1.823 km WSW of Salamatof, AlaskaWed, Dec 22, 2:14 AM AKST · 1740 days ago · 69 km deep · 67 km away
4. 1.567 km WNW of Nikiski, AlaskaWed, Dec 22, 2:53 AM AKST · 1740 days ago · 110 km deep · 6 km away
5. 2.577 km ENE of Port Alsworth, AlaskaWed, Dec 22, 3:14 AM AKST · 1740 days ago · 141 km deep · 74 km away
6. 1.732 km W of Salamatof, AlaskaWed, Dec 22, 3:39 AM AKST · 1740 days ago · 81 km deep · 46 km away
7. 1.511 km N of Point Possession, AlaskaWed, Dec 22, 10:23 AM AKST · 1739 days ago · 52 km deep · 90 km away
8. 1.5Southern AlaskaWed, Dec 22, 3:38 PM AKST · 1739 days ago · 175 km deep · 61 km away
9. 1.563 km WNW of Nikiski, AlaskaWed, Dec 22, 9:50 PM AKST · 1739 days ago · 1 km deep · 7 km away
10. 1.650 km WNW of Clam Gulch, AlaskaWed, Dec 22, 10:27 PM AKST · 1739 days ago · 86 km deep · 67 km away
11. 1.560 km W of Ninilchik, AlaskaWed, Dec 22, 11:16 PM AKST · 1739 days ago · 102 km deep · 97 km away
12. 1.550 km WNW of Beluga, AlaskaThu, Dec 23, 10:34 AM AKST · 1738 days ago · 92 km deep · 39 km away
13. 1.572 km W of Nikiski, AlaskaThu, Dec 23, 7:39 PM AKST · 1738 days ago · 115 km deep · 28 km away
14. 1.527 km NNW of Beluga, AlaskaFri, Dec 24, 12:32 AM AKST · 1738 days ago · 74 km deep · 70 km away
15. 1.763 km WNW of Happy Valley, AlaskaFri, Dec 24, 2:04 AM AKST · 1738 days ago · 94 km deep · 98 km away
16. 1.868 km W of Salamatof, AlaskaFri, Dec 24, 3:52 PM AKST · 1737 days ago · 128 km deep · 45 km away
17. 1.547 km WNW of Ninilchik, AlaskaFri, Dec 24, 6:13 PM AKST · 1737 days ago · 93 km deep · 96 km away
18. 1.641 km SW of Skwentna, AlaskaFri, Dec 24, 8:56 PM AKST · 1737 days ago · 91 km deep · 80 km away
19. 2.020 km WSW of Point Possession, AlaskaSat, Dec 25, 1:11 PM AKST · 1736 days ago · 10 km deep · 74 km away
20. 2.047 km S of Skwentna, AlaskaSat, Dec 25, 7:49 PM AKST · 1736 days ago · 77 km deep · 79 km away
21. 1.558 km SW of Skwentna, AlaskaSat, Dec 25, 7:53 PM AKST · 1736 days ago · 111 km deep · 67 km away
22. 1.675 km W of Tyonek, AlaskaSat, Dec 25, 10:22 PM AKST · 1736 days ago · 120 km deep · 9 km away
23. 1.635 km WNW of Beluga, AlaskaSun, Dec 26, 4:06 AM AKST · 1736 days ago · 78 km deep · 42 km away
24. 1.514 km S of Point Possession, AlaskaSun, Dec 26, 4:31 AM AKST · 1736 days ago · 50 km deep · 93 km away
25. 2.725 km SSW of Susitna, AlaskaSun, Dec 26, 6:48 AM AKST · 1736 days ago · 54 km deep · 95 km away
26. 1.939 km W of Salamatof, AlaskaSun, Dec 26, 1:27 PM AKST · 1735 days ago · 87 km deep · 49 km away
27. 1.547 km WNW of Tyonek, AlaskaSun, Dec 26, 3:48 PM AKST · 1735 days ago · 90 km deep · 32 km away
28. 1.716 km WSW of Susitna, AlaskaSun, Dec 26, 8:43 PM AKST · 1735 days ago · 69 km deep · 99 km away
29. 1.547 km WNW of Tyonek, AlaskaMon, Dec 27, 12:49 AM AKST · 1735 days ago · 95 km deep · 25 km away
30. 1.837 km WNW of Nikiski, AlaskaMon, Dec 27, 1:07 AM AKST · 1735 days ago · 91 km deep · 35 km away
31. 1.532 km N of Beluga, AlaskaMon, Dec 27, 1:16 AM AKST · 1735 days ago · 69 km deep · 82 km away
32. 1.568 km WNW of Ninilchik, AlaskaMon, Dec 27, 5:57 PM AKST · 1734 days ago · 117 km deep · 75 km away
33. 1.532 km W of Kalifornsky, AlaskaMon, Dec 27, 9:42 PM AKST · 1734 days ago · 74 km deep · 67 km away
34. 1.662 km W of Tyonek, AlaskaMon, Dec 27, 10:36 PM AKST · 1734 days ago · 120 km deep · 19 km away
35. 1.8Kenai Peninsula, AlaskaTue, Dec 28, 4:34 AM AKST · 1734 days ago · 62 km deep · 90 km away
36. 1.559 km WNW of Nikiski, AlaskaTue, Dec 28, 8:09 PM AKST · 1733 days ago · 103 km deep · 21 km away
37. 1.825 km W of Susitna, AlaskaWed, Dec 29, 1:58 AM AKST · 1733 days ago · 70 km deep · 96 km away · felt by 1
38. 1.637 km NW of Ninilchik, AlaskaWed, Dec 29, 7:56 AM AKST · 1732 days ago · 89 km deep · 82 km away
39. 2.071 km ENE of Port Alsworth, AlaskaWed, Dec 29, 7:47 PM AKST · 1732 days ago · 136 km deep · 82 km away
40. 1.520 km WNW of Kalifornsky, AlaskaWed, Dec 29, 9:12 PM AKST · 1732 days ago · 71 km deep · 71 km away
41. 1.539 km W of Salamatof, AlaskaWed, Dec 29, 10:12 PM AKST · 1732 days ago · 83 km deep · 53 km away
42. 1.5Southern AlaskaWed, Dec 29, 11:28 PM AKST · 1732 days ago · 114 km deep · 14 km away
43. 2.128 km WNW of Kalifornsky, AlaskaThu, Dec 30, 1:33 AM AKST · 1732 days ago · 73 km deep · 68 km away · felt by 1
44. 1.669 km E of Port Alsworth, AlaskaThu, Dec 30, 6:59 AM AKST · 1732 days ago · 133 km deep · 94 km away
45. 1.664 km WNW of Nikiski, AlaskaFri, Dec 31, 12:10 AM AKST · 1731 days ago · 109 km deep · 6 km away
46. 1.8Southern AlaskaFri, Dec 31, 4:59 AM AKST · 1731 days ago · 112 km deep · 55 km away
47. 1.828 km SW of Susitna, AlaskaFri, Dec 31, 6:12 AM AKST · 1731 days ago · 67 km deep · 87 km away
48. 1.931 km W of Salamatof, AlaskaFri, Dec 31, 8:30 AM AKST · 1730 days ago · 79 km deep · 50 km away
49. 1.750 km WNW of Beluga, AlaskaFri, Dec 31, 10:21 AM AKST · 1730 days ago · 92 km deep · 49 km away
50. 2.02 km NE of Tyonek, AlaskaFri, Dec 31, 5:02 PM AKST · 1730 days ago · 64 km deep · 68 km away
51. 1.666 km W of Nikiski, AlaskaFri, Dec 31, 8:54 PM AKST · 1730 days ago · 109 km deep · 29 km away
52. 1.536 km WNW of Tyonek, AlaskaFri, Dec 31, 11:01 PM AKST · 1730 days ago · 78 km deep · 39 km away
53. 1.848 km WNW of Clam Gulch, AlaskaSat, Jan 1, 6:09 PM AKST · 1729 days ago · 84 km deep · 70 km away
54. 2.663 km NW of Ninilchik, AlaskaSat, Jan 1, 9:25 PM AKST · 1729 days ago · 105 km deep · 61 km away · felt by 1
55. 1.841 km WNW of Nikiski, AlaskaSat, Jan 1, 10:37 PM AKST · 1729 days ago · 86 km deep · 28 km away
56. 1.740 km W of Tyonek, AlaskaSun, Jan 2, 11:20 AM AKST · 1728 days ago · 84 km deep · 26 km away
57. 1.760 km WNW of Nikiski, AlaskaSun, Jan 2, 11:36 AM AKST · 1728 days ago · 99 km deep · 19 km away
58. 1.929 km W of Salamatof, AlaskaSun, Jan 2, 4:11 PM AKST · 1728 days ago · 78 km deep · 51 km away
59. 1.750 km W of Tyonek, AlaskaSun, Jan 2, 5:38 PM AKST · 1728 days ago · 102 km deep · 19 km away
60. 1.742 km NW of Ninilchik, AlaskaSun, Jan 2, 9:25 PM AKST · 1728 days ago · 81 km deep · 77 km away

The first 60 of at least 200.

Before

1. 1.848 km W of Salamatof, AlaskaTue, Dec 21, 9:05 AM AKST · 1740 days ago · 84 km deep · 46 km away
2. 1.936 km WNW of Kalifornsky, AlaskaMon, Dec 20, 7:02 PM AKST · 1741 days ago · 79 km deep · 63 km away
3. 1.663 km WSW of Salamatof, AlaskaMon, Dec 20, 12:06 PM AKST · 1741 days ago · 100 km deep · 59 km away
4. 1.51 km NNW of Kasilof, AlaskaMon, Dec 20, 10:55 AM AKST · 1741 days ago · 55 km deep · 95 km away
5. 1.5Southern AlaskaSun, Dec 19, 8:23 PM AKST · 1742 days ago · 107 km deep · 92 km away
6. 1.875 km NE of Port Alsworth, AlaskaSun, Dec 19, 2:48 PM AKST · 1742 days ago · 169 km deep · 65 km away
7. 1.862 km E of Port Alsworth, AlaskaSun, Dec 19, 8:15 AM AKST · 1742 days ago · 145 km deep · 92 km away
8. 2.957 km WNW of Ninilchik, AlaskaSun, Dec 19, 7:45 AM AKST · 1742 days ago · 98 km deep · 82 km away
9. 1.529 km NW of Beluga, AlaskaSat, Dec 18, 9:56 PM AKST · 1743 days ago · 76 km deep · 54 km away
10. 2.017 km SW of Tyonek, AlaskaSat, Dec 18, 1:03 PM AKST · 1743 days ago · 84 km deep · 55 km away · felt by 15
11. 1.863 km W of Tyonek, AlaskaSat, Dec 18, 12:30 PM AKST · 1743 days ago · 114 km deep · 4 km away
12. 1.519 km ENE of Nikiski, AlaskaSat, Dec 18, 5:58 AM AKST · 1744 days ago · 63 km deep · 83 km away
13. 1.927 km NW of Nikiski, AlaskaSat, Dec 18, 12:42 AM AKST · 1744 days ago · 71 km deep · 45 km away
14. 2.612 km S of Point Possession, AlaskaFri, Dec 17, 10:50 AM AKST · 1744 days ago · 41 km deep · 91 km away
15. 1.928 km WNW of Susitna, AlaskaFri, Dec 17, 9:56 AM AKST · 1744 days ago · 65 km deep · 99 km away
16. 1.579 km W of Salamatof, AlaskaFri, Dec 17, 9:04 AM AKST · 1744 days ago · 133 km deep · 38 km away
17. 1.658 km SW of Skwentna, AlaskaFri, Dec 17, 4:25 AM AKST · 1745 days ago · 132 km deep · 75 km away
18. 1.564 km WNW of Ninilchik, AlaskaThu, Dec 16, 8:14 PM AKST · 1745 days ago · 105 km deep · 79 km away
19. 1.634 km S of Skwentna, AlaskaThu, Dec 16, 7:58 PM AKST · 1745 days ago · 71 km deep · 95 km away
20. 1.542 km WSW of Salamatof, AlaskaThu, Dec 16, 7:46 PM AKST · 1745 days ago · 81 km deep · 60 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021gbfrgn7. Read Sun, Sep 27, 2026, 3:38 AM UTC.