M1.6 earthquake 66 km ENE of Pedro Bay, Alaska

Magnitude

1.6 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Mon, Dec 20, 2021, 1:38 PM AKST

UTC

2021-12-20 22:38:01 UTC

Depth

118.7 km (73.8 mi), intermediate-depth

Epicenter

60.099° N, 153.097° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

72

• Happy Valley, AlaskaPopulation 593. Forecast78 kmWNW
• Anchorage, AlaskaPopulation 289,600. Forecast214 kmSW

After

1. 1.936 km WNW of Kalifornsky, AlaskaMon, Dec 20, 7:02 PM AKST · 1746 days ago · 79 km deep · 77 km away
2. 1.763 km ESE of Pedro Bay, AlaskaMon, Dec 20, 11:23 PM AKST · 1745 days ago · 98 km deep · 50 km away
3. 1.957 km E of Port Alsworth, AlaskaTue, Dec 21, 1:52 AM AKST · 1745 days ago · 141 km deep · 15 km away
4. 1.758 km WSW of Anchor Point, AlaskaTue, Dec 21, 3:10 AM AKST · 1745 days ago · 94 km deep · 49 km away
5. 1.847 km W of Anchor Point, AlaskaTue, Dec 21, 3:31 AM AKST · 1745 days ago · 80 km deep · 40 km away
6. 1.848 km W of Salamatof, AlaskaTue, Dec 21, 9:05 AM AKST · 1745 days ago · 84 km deep · 75 km away
7. 5.958 km E of Port Alsworth, AlaskaTue, Dec 21, 1:42 PM AKST · 1745 days ago · 151 km deep · 10 km away · felt by 1,888 · tsunami flag
8. 1.957 km E of Port Alsworth, AlaskaTue, Dec 21, 2:10 PM AKST · 1745 days ago · 151 km deep · 11 km away
9. 1.748 km ESE of Pope-Vannoy Landing, AlaskaTue, Dec 21, 4:06 PM AKST · 1745 days ago · 126 km deep · 90 km away
10. 1.634 km WNW of Happy Valley, AlaskaTue, Dec 21, 4:19 PM AKST · 1745 days ago · 75 km deep · 44 km away
11. 2.35 km NNE of Nikolaevsk, AlaskaTue, Dec 21, 6:15 PM AKST · 1745 days ago · 46 km deep · 90 km away · felt by 1
12. 2.750 km E of Pedro Bay, AlaskaTue, Dec 21, 9:10 PM AKST · 1744 days ago · 110 km deep · 38 km away
13. 1.5Southern AlaskaTue, Dec 21, 9:30 PM AKST · 1744 days ago · 89 km deep · 56 km away
14. 2.133 km WSW of Anchor Point, AlaskaTue, Dec 21, 10:39 PM AKST · 1744 days ago · 71 km deep · 59 km away
15. 1.940 km ENE of Port Alsworth, AlaskaTue, Dec 21, 11:38 PM AKST · 1744 days ago · 196 km deep · 39 km away
16. 1.848 km E of Port Alsworth, AlaskaWed, Dec 22, 12:14 AM AKST · 1744 days ago · 153 km deep · 20 km away
17. 1.823 km WSW of Salamatof, AlaskaWed, Dec 22, 2:14 AM AKST · 1744 days ago · 69 km deep · 90 km away
18. 2.577 km ENE of Port Alsworth, AlaskaWed, Dec 22, 3:14 AM AKST · 1744 days ago · 141 km deep · 36 km away
19. 1.732 km W of Salamatof, AlaskaWed, Dec 22, 3:39 AM AKST · 1744 days ago · 81 km deep · 91 km away
20. 1.556 km E of Pedro Bay, AlaskaWed, Dec 22, 9:02 AM AKST · 1744 days ago · 102 km deep · 33 km away
21. 1.5Southern AlaskaWed, Dec 22, 3:38 PM AKST · 1744 days ago · 175 km deep · 58 km away
22. 1.551 km W of Anchor Point, AlaskaWed, Dec 22, 7:46 PM AKST · 1744 days ago · 83 km deep · 38 km away
23. 1.965 km WNW of Nanwalek, AlaskaWed, Dec 22, 8:24 PM AKST · 1743 days ago · 101 km deep · 60 km away
24. 1.650 km WNW of Clam Gulch, AlaskaWed, Dec 22, 10:27 PM AKST · 1743 days ago · 86 km deep · 60 km away
25. 1.560 km W of Ninilchik, AlaskaWed, Dec 22, 11:16 PM AKST · 1743 days ago · 102 km deep · 21 km away
26. 2.040 km E of Pedro Bay, AlaskaWed, Dec 22, 11:50 PM AKST · 1743 days ago · 121 km deep · 37 km away
27. 1.553 km WNW of Happy Valley, AlaskaThu, Dec 23, 3:18 AM AKST · 1743 days ago · 82 km deep · 26 km away
28. 2.052 km W of Anchor Point, AlaskaThu, Dec 23, 11:18 AM AKST · 1743 days ago · 90 km deep · 44 km away
29. 1.650 km ENE of Pedro Bay, AlaskaThu, Dec 23, 3:02 PM AKST · 1743 days ago · 119 km deep · 16 km away
30. 1.851 km W of Anchor Point, AlaskaThu, Dec 23, 3:53 PM AKST · 1743 days ago · 78 km deep · 34 km away
31. 1.572 km W of Nikiski, AlaskaThu, Dec 23, 7:39 PM AKST · 1743 days ago · 115 km deep · 82 km away
32. 1.517 km W of Anchor Point, AlaskaThu, Dec 23, 8:26 PM AKST · 1742 days ago · 74 km deep · 64 km away
33. 2.434 km WNW of Anchor Point, AlaskaFri, Dec 24, 12:24 AM AKST · 1742 days ago · 92 km deep · 46 km away
34. 1.763 km WNW of Happy Valley, AlaskaFri, Dec 24, 2:04 AM AKST · 1742 days ago · 94 km deep · 18 km away
35. 1.647 km WNW of Happy Valley, AlaskaFri, Dec 24, 2:11 AM AKST · 1742 days ago · 95 km deep · 30 km away
36. 1.826 km W of Anchor Point, AlaskaFri, Dec 24, 6:14 AM AKST · 1742 days ago · 86 km deep · 60 km away
37. 1.734 km E of Pedro Bay, AlaskaFri, Dec 24, 7:09 AM AKST · 1742 days ago · 134 km deep · 37 km away
38. 1.559 km WNW of Anchor Point, AlaskaFri, Dec 24, 9:03 AM AKST · 1742 days ago · 88 km deep · 24 km away
39. 2.145 km WSW of Anchor Point, AlaskaFri, Dec 24, 9:15 AM AKST · 1742 days ago · 85 km deep · 55 km away
40. 1.868 km W of Salamatof, AlaskaFri, Dec 24, 3:52 PM AKST · 1742 days ago · 128 km deep · 65 km away
41. 3.156 km E of Port Alsworth, AlaskaFri, Dec 24, 5:36 PM AKST · 1742 days ago · 150 km deep · 12 km away
42. 1.547 km WNW of Ninilchik, AlaskaFri, Dec 24, 6:13 PM AKST · 1742 days ago · 93 km deep · 34 km away
43. 1.563 km ENE of Pedro Bay, AlaskaFri, Dec 24, 9:34 PM AKST · 1741 days ago · 153 km deep · 3 km away
44. 1.841 km SE of Pedro Bay, AlaskaSat, Dec 25, 12:12 AM AKST · 1741 days ago · 117 km deep · 66 km away
45. 2.055 km WNW of Anchor Point, AlaskaSat, Dec 25, 3:04 AM AKST · 1741 days ago · 101 km deep · 26 km away
46. 1.648 km ENE of Pedro Bay, AlaskaSat, Dec 25, 4:41 AM AKST · 1741 days ago · 118 km deep · 24 km away
47. 2.1Southern AlaskaSat, Dec 25, 10:52 AM AKST · 1741 days ago · 148 km deep · 22 km away
48. 2.354 km ESE of Pope-Vannoy Landing, AlaskaSat, Dec 25, 12:37 PM AKST · 1741 days ago · 106 km deep · 96 km away
49. 1.566 km SE of Pope-Vannoy Landing, AlaskaSat, Dec 25, 2:33 PM AKST · 1741 days ago · 90 km deep · 100 km away
50. 1.663 km WNW of Nanwalek, AlaskaSat, Dec 25, 5:00 PM AKST · 1741 days ago · 105 km deep · 59 km away
51. 1.655 km W of Anchor Point, AlaskaSat, Dec 25, 5:55 PM AKST · 1741 days ago · 99 km deep · 38 km away
52. 2.164 km WNW of Happy Valley, AlaskaSun, Dec 26, 2:21 AM AKST · 1740 days ago · 110 km deep · 14 km away
53. 1.524 km WNW of Anchor Point, AlaskaSun, Dec 26, 6:32 AM AKST · 1740 days ago · 69 km deep · 55 km away
54. 1.671 km WNW of Happy Valley, AlaskaSun, Dec 26, 9:58 AM AKST · 1740 days ago · 118 km deep · 10 km away
55. 2.340 km WNW of Anchor Point, AlaskaSun, Dec 26, 10:10 AM AKST · 1740 days ago · 88 km deep · 39 km away
56. 1.654 km WNW of Nanwalek, AlaskaSun, Dec 26, 11:39 AM AKST · 1740 days ago · 101 km deep · 64 km away
57. 1.743 km E of Pedro Bay, AlaskaSun, Dec 26, 11:49 AM AKST · 1740 days ago · 128 km deep · 40 km away
58. 1.539 km WNW of Anchor Point, AlaskaSun, Dec 26, 12:56 PM AKST · 1740 days ago · 86 km deep · 42 km away
59. 1.939 km W of Salamatof, AlaskaSun, Dec 26, 1:27 PM AKST · 1740 days ago · 87 km deep · 80 km away
60. 1.553 km W of Nanwalek, AlaskaSun, Dec 26, 2:11 PM AKST · 1740 days ago · 81 km deep · 77 km away

The first 60 of at least 201.

Before

1. 1.663 km WSW of Salamatof, AlaskaMon, Dec 20, 12:06 PM AKST · 1746 days ago · 100 km deep · 56 km away
2. 1.567 km WNW of Happy Valley, AlaskaMon, Dec 20, 9:30 AM AKST · 1746 days ago · 118 km deep · 11 km away
3. 1.762 km E of Port Alsworth, AlaskaMon, Dec 20, 3:55 AM AKST · 1746 days ago · 137 km deep · 10 km away
4. 1.640 km WNW of Nanwalek, AlaskaMon, Dec 20, 2:43 AM AKST · 1746 days ago · 72 km deep · 74 km away
5. 1.548 km W of Anchor Point, AlaskaMon, Dec 20, 2:22 AM AKST · 1746 days ago · 84 km deep · 43 km away
6. 1.650 km WNW of Happy Valley, AlaskaSun, Dec 19, 8:46 PM AKST · 1746 days ago · 93 km deep · 29 km away
7. 1.5Southern AlaskaSun, Dec 19, 8:23 PM AKST · 1746 days ago · 107 km deep · 21 km away
8. 1.5Southern AlaskaSun, Dec 19, 5:40 PM AKST · 1747 days ago · 77 km deep · 99 km away
9. 2.1Southern AlaskaSun, Dec 19, 4:07 PM AKST · 1747 days ago · 103 km deep · 36 km away
10. 1.556 km W of Anchor Point, AlaskaSun, Dec 19, 3:56 PM AKST · 1747 days ago · 95 km deep · 42 km away
11. 1.64 km SE of Happy Valley, AlaskaSun, Dec 19, 3:39 PM AKST · 1747 days ago · 65 km deep · 81 km away
12. 1.875 km NE of Port Alsworth, AlaskaSun, Dec 19, 2:48 PM AKST · 1747 days ago · 169 km deep · 63 km away
13. 1.659 km WNW of Happy Valley, AlaskaSun, Dec 19, 8:19 AM AKST · 1747 days ago · 103 km deep · 19 km away
14. 1.862 km E of Port Alsworth, AlaskaSun, Dec 19, 8:15 AM AKST · 1747 days ago · 145 km deep · 23 km away
15. 2.957 km WNW of Ninilchik, AlaskaSun, Dec 19, 7:45 AM AKST · 1747 days ago · 98 km deep · 35 km away
16. 2.254 km E of Pedro Bay, AlaskaSun, Dec 19, 7:23 AM AKST · 1747 days ago · 103 km deep · 42 km away
17. 1.565 km WNW of Nanwalek, AlaskaSun, Dec 19, 1:46 AM AKST · 1747 days ago · 101 km deep · 56 km away
18. 1.543 km WSW of Nanwalek, AlaskaSat, Dec 18, 6:45 PM AKST · 1748 days ago · 77 km deep · 96 km away
19. 1.6Southern AlaskaSat, Dec 18, 6:01 PM AKST · 1748 days ago · 123 km deep · 13 km away
20. 1.630 km NW of Nanwalek, AlaskaSat, Dec 18, 1:28 PM AKST · 1748 days ago · 65 km deep · 76 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021g9tkjfv. Read Thu, Oct 1, 2026, 4:52 PM UTC.