M1.8 earthquake 60 km ESE of Ugashik, Alaska

Magnitude

1.8 (ml), micro

Local time

Wed, Sep 15, 2021, 9:35 PM AKDT

UTC

2021-09-16 05:35:32 UTC

Depth

3.3 km (2.1 mi), shallow

Epicenter

57.237° N, 156.532° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

33

• Naknek, AlaskaPopulation 544. Forecast168 kmS
• Anchorage, AlaskaPopulation 289,600. Forecast581 kmSW

After

1. 2.074 km NE of Chignik, AlaskaThu, Sep 16, 12:46 PM AKDT · 1832 days ago · 2 km deep · 81 km away
2. 1.995 km ESE of Ugashik, AlaskaThu, Sep 16, 3:17 PM AKDT · 1832 days ago · 17 km deep · 35 km away
3. 1.676 km ESE of Ugashik, AlaskaThu, Sep 16, 5:08 PM AKDT · 1832 days ago · 29 km deep · 21 km away
4. 2.774 km WNW of Karluk, AlaskaFri, Sep 17, 1:23 AM AKDT · 1832 days ago · 10 km deep · 74 km away
5. 3.299 km ENE of Chignik, AlaskaFri, Sep 17, 10:19 AM AKDT · 1831 days ago · 7 km deep · 72 km away
6. 2.586 km ENE of Chignik, AlaskaFri, Sep 17, 10:35 AM AKDT · 1831 days ago · 12 km deep · 85 km away
7. 2.892 km SSE of Ugashik, AlaskaFri, Sep 17, 4:03 PM AKDT · 1831 days ago · 41 km deep · 68 km away
8. 2.154 km W of Akhiok, AlaskaSat, Sep 18, 5:59 AM AKDT · 1830 days ago · 7 km deep · 97 km away
9. 2.7118 km WSW of Akhiok, AlaskaSat, Sep 18, 7:59 PM AKDT · 1830 days ago · 8 km deep · 78 km away
10. 2.394 km SW of Karluk, AlaskaSun, Sep 19, 6:57 PM AKDT · 1829 days ago · 75 km deep · 53 km away
11. 1.856 km SE of Ugashik, AlaskaWed, Sep 22, 1:34 AM AKDT · 1827 days ago · 89 km deep · 9 km away
12. 1.8109 km SSE of Ugashik, AlaskaWed, Sep 22, 3:36 AM AKDT · 1826 days ago · 59 km deep · 70 km away
13. 2.086 km ENE of Ugashik, AlaskaWed, Sep 22, 10:34 AM AKDT · 1826 days ago · 6 km deep · 60 km away
14. 1.646 km WSW of Karluk, AlaskaSat, Sep 25, 7:06 AM AKDT · 1823 days ago · 35 km deep · 84 km away
15. 2.247 km SW of Karluk, AlaskaMon, Sep 27, 12:29 PM AKDT · 1821 days ago · 45 km deep · 92 km away
16. 2.179 km W of Akhiok, AlaskaMon, Sep 27, 2:25 PM AKDT · 1821 days ago · 68 km deep · 74 km away
17. 2.075 km E of Ugashik, AlaskaTue, Sep 28, 4:44 PM AKDT · 1820 days ago · 7 km deep · 30 km away
18. 1.755 km WNW of Karluk, AlaskaTue, Sep 28, 9:09 PM AKDT · 1820 days ago · 82 km deep · 85 km away
19. 2.1101 km SE of Ugashik, AlaskaTue, Sep 28, 11:02 PM AKDT · 1820 days ago · 2 km deep · 48 km away
20. 1.869 km WSW of Akhiok, AlaskaWed, Sep 29, 2:22 PM AKDT · 1819 days ago · 10 km deep · 100 km away
21. 2.482 km ESE of Egegik, AlaskaSat, Oct 2, 7:16 AM AKDT · 1816 days ago · 119 km deep · 77 km away
22. 1.793 km ESE of Ugashik, AlaskaSun, Oct 3, 6:17 PM AKDT · 1815 days ago · 68 km deep · 36 km away
23. 2.098 km SE of Ugashik, AlaskaMon, Oct 4, 3:06 AM AKDT · 1814 days ago · 59 km deep · 44 km away
24. 1.586 km WNW of Karluk, AlaskaTue, Oct 5, 9:20 AM AKDT · 1813 days ago · 98 km deep · 68 km away
25. 2.490 km SE of Ugashik, AlaskaTue, Oct 5, 9:13 PM AKDT · 1813 days ago · 60 km deep · 33 km away
26. 3.0119 km E of Chignik, AlaskaWed, Oct 6, 1:01 AM AKDT · 1813 days ago · 69 km deep · 96 km away
27. 2.113 km E of Ugashik, AlaskaWed, Oct 6, 9:16 AM AKDT · 1812 days ago · 118 km deep · 48 km away
28. 1.986 km E of Ugashik, AlaskaThu, Oct 7, 2:53 AM AKDT · 1811 days ago · 102 km deep · 57 km away
29. 1.682 km ESE of Ugashik, AlaskaThu, Oct 7, 11:47 PM AKDT · 1811 days ago · 73 km deep · 30 km away
30. 2.0Alaska PeninsulaFri, Oct 8, 4:03 AM AKDT · 1810 days ago · 4 km deep · 3 km away
31. 1.770 km ESE of Ugashik, AlaskaFri, Oct 8, 8:19 AM AKDT · 1810 days ago · 2 km deep · 10 km away
32. 2.177 km SSE of King Salmon, AlaskaFri, Oct 8, 9:21 PM AKDT · 1810 days ago · 121 km deep · 99 km away
33. 3.389 km SE of Ugashik, AlaskaSat, Oct 9, 12:23 PM AKDT · 1809 days ago · 12 km deep · 31 km away
34. 2.797 km SE of Ugashik, AlaskaSat, Oct 9, 12:27 PM AKDT · 1809 days ago · 6 km deep · 38 km away
35. 2.796 km SE of Ugashik, AlaskaSat, Oct 9, 5:00 PM AKDT · 1809 days ago · 8 km deep · 38 km away
36. 2.061 km ENE of Ugashik, AlaskaMon, Oct 11, 12:01 AM AKDT · 1808 days ago · 139 km deep · 63 km away
37. 3.0114 km E of Chignik, AlaskaMon, Oct 11, 1:30 AM AKDT · 1808 days ago · 65 km deep · 92 km away · felt by 1
38. 2.1115 km E of Chignik, AlaskaMon, Oct 11, 1:35 AM AKDT · 1808 days ago · 53 km deep · 94 km away
39. 2.4117 km E of Chignik, AlaskaMon, Oct 11, 1:56 AM AKDT · 1808 days ago · 72 km deep · 98 km away
40. 2.4115 km E of Chignik, AlaskaMon, Oct 11, 3:09 AM AKDT · 1807 days ago · 70 km deep · 95 km away
41. 2.4115 km E of Chignik, AlaskaMon, Oct 11, 3:33 AM AKDT · 1807 days ago · 12 km deep · 92 km away
42. 2.6113 km E of Chignik, AlaskaMon, Oct 11, 3:42 AM AKDT · 1807 days ago · 56 km deep · 98 km away
43. 1.782 km W of Karluk, AlaskaMon, Oct 11, 6:36 AM AKDT · 1807 days ago · 79 km deep · 53 km away
44. 2.3113 km E of Chignik, AlaskaMon, Oct 11, 7:34 AM AKDT · 1807 days ago · 14 km deep · 99 km away
45. 2.5113 km E of Chignik, AlaskaMon, Oct 11, 7:50 AM AKDT · 1807 days ago · 48 km deep · 97 km away
46. 2.2113 km E of Chignik, AlaskaMon, Oct 11, 8:48 AM AKDT · 1807 days ago · 41 km deep · 98 km away
47. 2.4117 km E of Chignik, AlaskaMon, Oct 11, 12:53 PM AKDT · 1807 days ago · 73 km deep · 96 km away
48. 2.7122 km E of Chignik, AlaskaMon, Oct 11, 4:52 PM AKDT · 1807 days ago · 72 km deep · 98 km away
49. 2.062 km ESE of Egegik, AlaskaMon, Oct 11, 6:58 PM AKDT · 1807 days ago · 133 km deep · 82 km away
50. 2.465 km WSW of Karluk, AlaskaTue, Oct 12, 12:31 AM AKDT · 1807 days ago · 81 km deep · 65 km away
51. 3.2113 km E of Chignik, AlaskaTue, Oct 12, 10:47 AM AKDT · 1806 days ago · 47 km deep · 98 km away
52. 3.3115 km E of Chignik, AlaskaTue, Oct 12, 11:05 AM AKDT · 1806 days ago · 67 km deep · 92 km away
53. 2.1120 km SSE of Ugashik, AlaskaTue, Oct 12, 12:30 PM AKDT · 1806 days ago · 72 km deep · 76 km away
54. 2.8119 km E of Chignik, AlaskaTue, Oct 12, 4:23 PM AKDT · 1806 days ago · 73 km deep · 96 km away
55. 1.769 km W of Karluk, AlaskaTue, Oct 12, 8:19 PM AKDT · 1806 days ago · 88 km deep · 62 km away
56. 2.055 km WNW of Akhiok, AlaskaWed, Oct 13, 4:43 AM AKDT · 1805 days ago · 41 km deep · 92 km away
57. 2.8110 km E of Chignik, AlaskaThu, Oct 14, 6:09 AM AKDT · 1804 days ago · 46 km deep · 96 km away
58. 2.4112 km E of Chignik, AlaskaFri, Oct 15, 12:23 AM AKDT · 1804 days ago · 60 km deep · 96 km away
59. 1.646 km SSW of Karluk, AlaskaFri, Oct 15, 1:49 AM AKDT · 1804 days ago · 52 km deep · 100 km away
60. 1.859 km E of Port Heiden, AlaskaSat, Oct 16, 4:45 AM AKDT · 1802 days ago · 5 km deep · 73 km away

The first 60 of 116.

Before

1. 1.754 km ESE of Ugashik, AlaskaTue, Sep 14, 7:54 PM AKDT · 1834 days ago · 2 km deep · 10 km away
2. 1.671 km SE of Ugashik, AlaskaTue, Sep 14, 7:18 PM AKDT · 1834 days ago · 1 km deep · 13 km away
3. 1.646 km SE of Ugashik, AlaskaTue, Sep 14, 7:17 PM AKDT · 1834 days ago · 1 km deep · 14 km away
4. 1.7105 km W of Akhiok, AlaskaSun, Sep 12, 8:51 AM AKDT · 1836 days ago · 29 km deep · 53 km away
5. 2.0Alaska PeninsulaFri, Sep 10, 2:25 PM AKDT · 1838 days ago · 130 km deep · 64 km away
6. 3.296 km ENE of Chignik, AlaskaFri, Sep 10, 6:58 AM AKDT · 1838 days ago · 6 km deep · 73 km away
7. 2.0Alaska PeninsulaThu, Sep 9, 3:33 AM AKDT · 1839 days ago · 7 km deep · 62 km away
8. 3.269 km ESE of Egegik, AlaskaThu, Sep 9, 2:19 AM AKDT · 1839 days ago · 137 km deep · 83 km away
9. 1.664 km ENE of Chignik, AlaskaWed, Sep 8, 3:11 AM AKDT · 1840 days ago · 65 km deep · 94 km away
10. 2.4101 km W of Akhiok, AlaskaTue, Sep 7, 6:26 PM AKDT · 1841 days ago · 14 km deep · 59 km away
11. 2.4102 km W of Akhiok, AlaskaTue, Sep 7, 4:21 PM AKDT · 1841 days ago · 12 km deep · 58 km away
12. 1.953 km SW of Karluk, AlaskaMon, Sep 6, 4:26 PM AKDT · 1842 days ago · 61 km deep · 93 km away
13. 1.575 km WNW of Karluk, AlaskaMon, Sep 6, 10:08 AM AKDT · 1842 days ago · 95 km deep · 80 km away
14. 1.771 km WSW of Karluk, AlaskaMon, Sep 6, 3:50 AM AKDT · 1842 days ago · 61 km deep · 61 km away
15. 1.661 km WNW of Karluk, AlaskaSun, Sep 5, 12:20 PM AKDT · 1843 days ago · 10 km deep · 93 km away
16. 3.5105 km WSW of Akhiok, AlaskaSat, Sep 4, 9:06 PM AKDT · 1844 days ago · 70 km deep · 98 km away
17. 1.690 km WSW of Akhiok, AlaskaSat, Sep 4, 5:18 PM AKDT · 1844 days ago · 7 km deep · 75 km away
18. 1.776 km W of Karluk, AlaskaSat, Sep 4, 4:35 PM AKDT · 1844 days ago · 35 km deep · 60 km away
19. 1.585 km SE of Ugashik, AlaskaSat, Sep 4, 9:17 AM AKDT · 1844 days ago · 14 km deep · 31 km away
20. 2.080 km SE of Ugashik, AlaskaSat, Sep 4, 9:12 AM AKDT · 1844 days ago · 2 km deep · 28 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021bwfdn5c. Read Tue, Sep 22, 2026, 9:29 PM UTC.