M1.8 earthquake 34 km S of Ugashik, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Sat, Dec 18, 2021, 1:37 PM AKST

UTC

2021-12-18 22:37:15 UTC

Depth

5.0 km (3.1 mi), shallow

Epicenter

57.208° N, 157.417° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

18

• Naknek, AlaskaPopulation 544. Forecast171 kmS

After

1. 2.538 km E of Ugashik, AlaskaSun, Dec 19, 9:33 PM AKST · 1747 days ago · 129 km deep · 57 km away
2. 1.686 km W of Karluk, AlaskaMon, Dec 20, 8:12 PM AKST · 1746 days ago · 78 km deep · 97 km away
3. 3.131 km NNE of Pilot Point, AlaskaWed, Dec 22, 10:40 PM AKST · 1744 days ago · 7 km deep · 69 km away
4. 1.829 km NE of Pilot Point, AlaskaWed, Dec 22, 11:11 PM AKST · 1744 days ago · 2 km deep · 64 km away
5. 1.728 km NE of Pilot Point, AlaskaFri, Dec 24, 12:20 AM AKST · 1743 days ago · 7 km deep · 63 km away
6. 2.498 km SE of Ugashik, AlaskaFri, Dec 24, 12:10 PM AKST · 1743 days ago · 60 km deep · 85 km away
7. 1.961 km ENE of Chignik, AlaskaFri, Dec 24, 7:21 PM AKST · 1742 days ago · 71 km deep · 83 km away
8. 2.086 km SSE of Ugashik, AlaskaSat, Dec 25, 2:55 PM AKST · 1742 days ago · 83 km deep · 55 km away
9. 2.382 km S of Ugashik, AlaskaSat, Dec 25, 4:52 PM AKST · 1742 days ago · 97 km deep · 49 km away
10. 1.767 km ENE of Ugashik, AlaskaMon, Dec 27, 8:26 AM AKST · 1740 days ago · 123 km deep · 90 km away
11. 3.5103 km E of Chignik, AlaskaMon, Dec 27, 11:13 AM AKST · 1740 days ago · 2 km deep · 94 km away
12. 1.889 km WSW of Karluk, AlaskaThu, Dec 30, 3:55 PM AKST · 1737 days ago · 68 km deep · 96 km away
13. 2.095 km SE of Ugashik, AlaskaFri, Dec 31, 6:55 PM AKST · 1735 days ago · 79 km deep · 75 km away
14. 2.181 km ENE of Ugashik, AlaskaMon, Jan 3, 12:09 AM AKST · 1733 days ago · 103 km deep · 95 km away
15. 2.259 km SSE of Ugashik, AlaskaTue, Jan 4, 8:54 PM AKST · 1731 days ago · 2 km deep · 35 km away
16. 1.533 km NNE of Pilot Point, AlaskaWed, Jan 5, 8:12 PM AKST · 1730 days ago · 5 km deep · 70 km away
17. 1.6108 km SE of Ugashik, AlaskaFri, Jan 7, 7:13 PM AKST · 1728 days ago · 7 km deep · 88 km away
18. 1.6102 km ESE of Ugashik, AlaskaSat, Jan 8, 12:41 PM AKST · 1728 days ago · 19 km deep · 91 km away
19. 1.873 km ESE of Ugashik, AlaskaSat, Jan 8, 3:16 PM AKST · 1728 days ago · 2 km deep · 71 km away
20. 2.680 km SSE of Ugashik, AlaskaSun, Jan 9, 10:13 PM AKST · 1726 days ago · 78 km deep · 54 km away
21. 2.532 km E of Port Heiden, AlaskaWed, Jan 12, 12:07 AM AKST · 1724 days ago · 7 km deep · 50 km away
22. 1.679 km E of Ugashik, AlaskaWed, Jan 12, 2:08 PM AKST · 1724 days ago · 86 km deep · 83 km away
23. 2.2124 km SE of Ugashik, AlaskaFri, Jan 14, 6:12 AM AKST · 1722 days ago · 60 km deep · 100 km away
24. 1.974 km ENE of Ugashik, AlaskaSun, Jan 16, 1:30 AM AKST · 1720 days ago · 129 km deep · 94 km away
25. 2.245 km SE of Port Heiden, AlaskaMon, Jan 17, 10:22 AM AKST · 1719 days ago · 87 km deep · 71 km away
26. 1.573 km SE of Ugashik, AlaskaTue, Jan 18, 4:22 PM AKST · 1718 days ago · 34 km deep · 56 km away
27. 2.6Alaska PeninsulaFri, Jan 28, 4:47 PM AKST · 1708 days ago · 2 km deep · 16 km away
28. 3.377 km ENE of Ugashik, AlaskaFri, Jan 28, 6:22 PM AKST · 1707 days ago · 124 km deep · 99 km away
29. 2.557 km E of Chignik, AlaskaFri, Jan 28, 7:45 PM AKST · 1707 days ago · 61 km deep · 94 km away
30. 2.282 km ENE of Chignik, AlaskaTue, Feb 1, 7:46 PM AKST · 1703 days ago · 47 km deep · 82 km away
31. 2.827 km NNE of Pilot Point, AlaskaTue, Feb 8, 3:33 AM AKST · 1697 days ago · 1 km deep · 66 km away
32. 2.1Alaska PeninsulaWed, Feb 9, 7:38 AM AKST · 1696 days ago · 7 km deep · 63 km away
33. 2.455 km ENE of Ugashik, AlaskaSat, Feb 12, 6:20 PM AKST · 1692 days ago · 16 km deep · 71 km away
34. 1.995 km ENE of Chignik, AlaskaTue, Feb 15, 5:18 AM AKST · 1690 days ago · 51 km deep · 64 km away

Before

1. 1.7101 km W of Akhiok, AlaskaFri, Dec 17, 3:09 PM AKST · 1750 days ago · 80 km deep · 99 km away
2. 1.575 km ENE of Ugashik, AlaskaFri, Dec 17, 2:03 PM AKST · 1750 days ago · 117 km deep · 97 km away
3. 2.154 km ESE of Port Heiden, AlaskaThu, Dec 16, 4:56 AM AKST · 1751 days ago · 87 km deep · 60 km away
4. 1.675 km ESE of Ugashik, AlaskaWed, Dec 15, 7:48 AM AKST · 1752 days ago · 10 km deep · 68 km away
5. 1.9109 km E of Chignik, AlaskaWed, Dec 15, 1:48 AM AKST · 1752 days ago · 65 km deep · 97 km away
6. 1.673 km SE of Ugashik, AlaskaTue, Dec 14, 2:10 AM AKST · 1753 days ago · 10 km deep · 52 km away
7. 1.772 km ESE of Egegik, AlaskaMon, Dec 13, 8:41 PM AKST · 1753 days ago · 127 km deep · 99 km away
8. 2.347 km SSE of Ugashik, AlaskaSun, Dec 12, 2:35 AM AKST · 1755 days ago · 95 km deep · 17 km away
9. 2.580 km E of Chignik, AlaskaSat, Dec 11, 6:11 AM AKST · 1756 days ago · 89 km deep · 92 km away
10. 2.276 km ENE of Chignik, AlaskaWed, Dec 8, 5:57 PM AKST · 1759 days ago · 31 km deep · 77 km away
11. 2.481 km ESE of Ugashik, AlaskaSun, Dec 5, 8:20 PM AKST · 1761 days ago · 76 km deep · 74 km away
12. 1.572 km ESE of Ugashik, AlaskaSat, Dec 4, 3:31 AM AKST · 1763 days ago · 94 km deep · 65 km away
13. 1.594 km ESE of Ugashik, AlaskaFri, Dec 3, 6:37 PM AKST · 1763 days ago · 2 km deep · 83 km away
14. 2.144 km E of Ugashik, AlaskaWed, Dec 1, 5:54 AM AKST · 1766 days ago · 115 km deep · 56 km away
15. 2.251 km SSE of Ugashik, AlaskaMon, Nov 29, 6:46 PM AKST · 1767 days ago · 6 km deep · 25 km away
16. 1.750 km ENE of Port Heiden, AlaskaSun, Nov 28, 6:10 AM AKST · 1769 days ago · 5 km deep · 31 km away
17. 2.120 km ESE of Ugashik, AlaskaSun, Nov 28, 2:39 AM AKST · 1769 days ago · 106 km deep · 32 km away
18. 1.890 km ESE of Ugashik, AlaskaSat, Nov 27, 6:52 AM AKST · 1770 days ago · 6 km deep · 90 km away
19. 1.990 km ESE of Ugashik, AlaskaTue, Nov 23, 11:12 AM AKST · 1774 days ago · 0 km deep · 81 km away
20. 2.357 km NE of Ugashik, AlaskaMon, Nov 22, 6:11 AM AKST · 1775 days ago · 138 km deep · 82 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak021g6ihntv. Read Fri, Oct 2, 2026, 2:32 PM UTC.