M1.8 earthquake 73 km W of Nikiski, Alaska

Magnitude

1.8 (ml), micro

Local time

Tue, Oct 5, 2021, 10:57 PM AKDT

UTC

2021-10-06 06:57:37 UTC

Depth

121.3 km (75.4 mi), intermediate-depth

Epicenter

60.825° N, 152.607° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

89

• Nikiski, AlaskaPopulation 4,493. Forecast73 kmWNW
• Anchorage, AlaskaPopulation 289,600. Forecast152 kmWSW

After

1. 1.662 km WNW of Anchor Point, AlaskaWed, Oct 6, 6:24 AM AKDT · 1820 days ago · 110 km deep · 92 km away
2. 1.866 km WNW of Happy Valley, AlaskaWed, Oct 6, 5:47 PM AKDT · 1820 days ago · 112 km deep · 79 km away
3. 1.6Kenai Peninsula, AlaskaWed, Oct 6, 8:21 PM AKDT · 1820 days ago · 77 km deep · 57 km away
4. 1.734 km WNW of Clam Gulch, AlaskaThu, Oct 7, 12:38 AM AKDT · 1820 days ago · 72 km deep · 64 km away
5. 2.075 km ENE of Port Alsworth, AlaskaThu, Oct 7, 1:23 AM AKDT · 1820 days ago · 136 km deep · 47 km away
6. 1.726 km W of Salamatof, AlaskaThu, Oct 7, 2:13 AM AKDT · 1820 days ago · 76 km deep · 48 km away
7. 2.0Southern AlaskaThu, Oct 7, 10:29 AM AKDT · 1819 days ago · 120 km deep · 75 km away
8. 1.515 km ESE of Tyonek, AlaskaThu, Oct 7, 11:40 AM AKDT · 1819 days ago · 10 km deep · 97 km away
9. 1.661 km WNW of Anchor Point, AlaskaThu, Oct 7, 3:44 PM AKDT · 1819 days ago · 102 km deep · 99 km away
10. 1.537 km W of Happy Valley, AlaskaThu, Oct 7, 5:30 PM AKDT · 1819 days ago · 82 km deep · 93 km away
11. 1.670 km WNW of Nikiski, AlaskaFri, Oct 8, 6:53 AM AKDT · 1818 days ago · 108 km deep · 7 km away
12. 1.664 km ENE of Pedro Bay, AlaskaFri, Oct 8, 10:17 AM AKDT · 1818 days ago · 106 km deep · 87 km away
13. 1.964 km E of Port Alsworth, AlaskaFri, Oct 8, 2:57 PM AKDT · 1818 days ago · 135 km deep · 65 km away
14. 1.873 km W of Tyonek, AlaskaFri, Oct 8, 4:14 PM AKDT · 1818 days ago · 124 km deep · 32 km away
15. 2.061 km W of Happy Valley, AlaskaSat, Oct 9, 12:03 AM AKDT · 1818 days ago · 108 km deep · 91 km away
16. 1.564 km W of Tyonek, AlaskaSat, Oct 9, 6:41 AM AKDT · 1817 days ago · 1 km deep · 36 km away
17. 1.8Southern AlaskaSat, Oct 9, 7:06 AM AKDT · 1817 days ago · 3 km deep · 35 km away
18. 2.042 km W of Nikiski, AlaskaSat, Oct 9, 8:45 AM AKDT · 1817 days ago · 82 km deep · 31 km away
19. 2.164 km ENE of Pedro Bay, AlaskaSat, Oct 9, 12:12 PM AKDT · 1817 days ago · 106 km deep · 99 km away
20. 1.563 km NW of Beluga, AlaskaSat, Oct 9, 9:04 PM AKDT · 1817 days ago · 103 km deep · 78 km away
21. 2.167 km WNW of Happy Valley, AlaskaSat, Oct 9, 11:57 PM AKDT · 1817 days ago · 119 km deep · 78 km away
22. 1.511 km SW of Tyonek, AlaskaSun, Oct 10, 2:33 AM AKDT · 1816 days ago · 66 km deep · 74 km away
23. 1.669 km WNW of Happy Valley, AlaskaSun, Oct 10, 8:55 AM AKDT · 1816 days ago · 118 km deep · 79 km away
24. 2.136 km ESE of Port Alsworth, AlaskaSun, Oct 10, 9:03 PM AKDT · 1816 days ago · 173 km deep · 96 km away
25. 1.859 km WNW of Anchor Point, AlaskaSun, Oct 10, 10:21 PM AKDT · 1816 days ago · 100 km deep · 98 km away
26. 1.567 km ENE of Port Alsworth, AlaskaSun, Oct 10, 10:25 PM AKDT · 1816 days ago · 111 km deep · 61 km away
27. 1.969 km W of Happy Valley, AlaskaMon, Oct 11, 7:06 AM AKDT · 1815 days ago · 107 km deep · 87 km away
28. 2.065 km W of Tyonek, AlaskaMon, Oct 11, 8:03 AM AKDT · 1815 days ago · 120 km deep · 35 km away
29. 1.615 km WNW of Salamatof, AlaskaMon, Oct 11, 9:30 AM AKDT · 1815 days ago · 70 km deep · 58 km away
30. 2.160 km ENE of Pedro Bay, AlaskaMon, Oct 11, 3:25 PM AKDT · 1815 days ago · 141 km deep · 98 km away
31. 1.665 km WNW of Beluga, AlaskaMon, Oct 11, 4:37 PM AKDT · 1815 days ago · 6 km deep · 57 km away
32. 1.753 km WNW of Ninilchik, AlaskaMon, Oct 11, 9:46 PM AKDT · 1815 days ago · 105 km deep · 61 km away
33. 1.629 km NW of Nikiski, AlaskaMon, Oct 11, 10:54 PM AKDT · 1815 days ago · 77 km deep · 49 km away
34. 1.761 km WNW of Ninilchik, AlaskaMon, Oct 11, 11:37 PM AKDT · 1815 days ago · 105 km deep · 70 km away
35. 1.623 km W of Tyonek, AlaskaTue, Oct 12, 3:30 AM AKDT · 1814 days ago · 75 km deep · 63 km away
36. 1.548 km WNW of Happy Valley, AlaskaTue, Oct 12, 3:39 AM AKDT · 1814 days ago · 100 km deep · 84 km away
37. 1.67 km WNW of Cohoe, AlaskaTue, Oct 12, 9:41 AM AKDT · 1814 days ago · 64 km deep · 80 km away
38. 1.541 km WNW of Tyonek, AlaskaTue, Oct 12, 1:14 PM AKDT · 1814 days ago · 92 km deep · 53 km away
39. 1.57 km WNW of Point Possession, AlaskaTue, Oct 12, 4:52 PM AKDT · 1814 days ago · 15 km deep · 98 km away
40. 1.570 km E of Port Alsworth, AlaskaTue, Oct 12, 8:07 PM AKDT · 1814 days ago · 116 km deep · 74 km away
41. 1.867 km W of Tyonek, AlaskaTue, Oct 12, 8:51 PM AKDT · 1814 days ago · 111 km deep · 26 km away
42. 1.672 km NW of Ninilchik, AlaskaWed, Oct 13, 2:23 AM AKDT · 1814 days ago · 95 km deep · 43 km away
43. 1.825 km WNW of Ninilchik, AlaskaWed, Oct 13, 9:47 AM AKDT · 1813 days ago · 70 km deep · 80 km away
44. 1.740 km W of Kalifornsky, AlaskaWed, Oct 13, 5:59 PM AKDT · 1813 days ago · 85 km deep · 52 km away
45. 1.540 km NW of Nikiski, AlaskaWed, Oct 13, 11:38 PM AKDT · 1813 days ago · 78 km deep · 40 km away
46. 1.665 km WNW of Nikiski, AlaskaThu, Oct 14, 12:34 AM AKDT · 1813 days ago · 116 km deep · 11 km away
47. 1.670 km E of Port Alsworth, AlaskaThu, Oct 14, 3:06 AM AKDT · 1812 days ago · 121 km deep · 76 km away
48. 1.871 km E of Port Alsworth, AlaskaThu, Oct 14, 6:49 AM AKDT · 1812 days ago · 131 km deep · 74 km away
49. 2.248 km W of Happy Valley, AlaskaThu, Oct 14, 7:01 AM AKDT · 1812 days ago · 96 km deep · 91 km away
50. 1.546 km NW of Ninilchik, AlaskaThu, Oct 14, 7:11 AM AKDT · 1812 days ago · 79 km deep · 57 km away
51. 1.627 km WNW of Kalifornsky, AlaskaThu, Oct 14, 7:56 AM AKDT · 1812 days ago · 72 km deep · 59 km away
52. 1.556 km NW of Ninilchik, AlaskaThu, Oct 14, 10:18 AM AKDT · 1812 days ago · 87 km deep · 46 km away
53. 1.535 km WNW of Ninilchik, AlaskaThu, Oct 14, 6:41 PM AKDT · 1812 days ago · 74 km deep · 76 km away
54. 1.83 km ESE of Ridgeway, AlaskaFri, Oct 15, 9:08 PM AKDT · 1811 days ago · 48 km deep · 93 km away · felt by 1
55. 1.545 km WNW of Tyonek, AlaskaFri, Oct 15, 10:00 PM AKDT · 1811 days ago · 101 km deep · 52 km away
56. 1.767 km W of Tyonek, AlaskaFri, Oct 15, 10:10 PM AKDT · 1811 days ago · 113 km deep · 26 km away
57. 1.662 km NW of Ninilchik, AlaskaSat, Oct 16, 4:55 AM AKDT · 1810 days ago · 100 km deep · 44 km away
58. 4.712 km SSW of Clam Gulch, AlaskaSat, Oct 16, 9:47 AM AKDT · 1810 days ago · 54 km deep · 98 km away · felt by 221 · tsunami flag
59. 2.310 km SSW of Clam Gulch, AlaskaSat, Oct 16, 11:44 AM AKDT · 1810 days ago · 48 km deep · 96 km away
60. 1.612 km SW of Clam Gulch, AlaskaSat, Oct 16, 12:53 PM AKDT · 1810 days ago · 48 km deep · 96 km away

The first 60 of at least 199.

Before

1. 1.868 km E of Port Alsworth, AlaskaTue, Oct 5, 7:55 AM AKDT · 1821 days ago · 123 km deep · 77 km away
2. 1.944 km WNW of Ninilchik, AlaskaMon, Oct 4, 5:58 PM AKDT · 1822 days ago · 91 km deep · 71 km away
3. 1.516 km W of Salamatof, AlaskaMon, Oct 4, 1:00 PM AKDT · 1822 days ago · 72 km deep · 60 km away
4. 1.56 km SW of Kasilof, AlaskaSun, Oct 3, 10:53 PM AKDT · 1823 days ago · 56 km deep · 91 km away
5. 1.769 km ENE of Pedro Bay, AlaskaSun, Oct 3, 12:32 PM AKDT · 1823 days ago · 112 km deep · 90 km away
6. 2.144 km WNW of Clam Gulch, AlaskaSun, Oct 3, 6:09 AM AKDT · 1823 days ago · 77 km deep · 54 km away
7. 1.756 km W of Nikiski, AlaskaSun, Oct 3, 2:07 AM AKDT · 1824 days ago · 91 km deep · 17 km away
8. 1.950 km ESE of Port Alsworth, AlaskaSat, Oct 2, 9:55 PM AKDT · 1824 days ago · 162 km deep · 93 km away
9. 2.035 km WNW of Anchor Point, AlaskaSat, Oct 2, 6:57 PM AKDT · 1824 days ago · 94 km deep · 100 km away
10. 1.512 km NNW of Beluga, AlaskaSat, Oct 2, 3:29 PM AKDT · 1824 days ago · 64 km deep · 89 km away
11. 1.854 km SW of Skwentna, AlaskaSat, Oct 2, 1:49 PM AKDT · 1824 days ago · 116 km deep · 95 km away
12. 1.710 km WNW of Tyonek, AlaskaSat, Oct 2, 1:44 PM AKDT · 1824 days ago · 85 km deep · 78 km away
13. 1.936 km WNW of Happy Valley, AlaskaSat, Oct 2, 7:01 AM AKDT · 1824 days ago · 75 km deep · 84 km away
14. 1.611 km NW of Beluga, AlaskaSat, Oct 2, 12:16 AM AKDT · 1825 days ago · 68 km deep · 86 km away
15. 1.545 km WSW of Tyonek, AlaskaFri, Oct 1, 9:46 PM AKDT · 1825 days ago · 78 km deep · 38 km away
16. 2.665 km WNW of Beluga, AlaskaFri, Oct 1, 6:42 PM AKDT · 1825 days ago · 136 km deep · 63 km away
17. 1.650 km WNW of Tyonek, AlaskaFri, Oct 1, 5:36 PM AKDT · 1825 days ago · 93 km deep · 54 km away
18. 1.678 km WNW of Ninilchik, AlaskaFri, Oct 1, 3:13 PM AKDT · 1825 days ago · 109 km deep · 51 km away
19. 1.619 km ENE of Nikiski, AlaskaFri, Oct 1, 12:41 PM AKDT · 1825 days ago · 25 km deep · 89 km away
20. 1.623 km NNW of Beluga, AlaskaFri, Oct 1, 11:00 AM AKDT · 1825 days ago · 75 km deep · 96 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021ctiuq1n. Read Wed, Sep 30, 2026, 9:58 PM UTC.