Alaska earthquakes

M1.6 earthquake 68 km SSE of Ugashik, Alaska

A magnitude 1.6 earthquake struck 68 km SSE of Ugashik, Alaska on Mon, Mar 22, 2021, 7:45 AM AKDT (15:45 UTC), 83 km (51 mi) below the surface.

A larger quake followed: M2.8 79 km WNW of Akhiok, Alaska. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.6 (ml), micro
Local time
UTC
2021-03-22 15:45:00 UTC
Depth
82.8 km (51.4 mi), intermediate-depth
Epicenter
56.942° N, 156.971° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used
20

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 37 in the 60 days after this one and 30 in the 30 days before it.

After

  1. 1.640 km ESE of Ugashik, Alaska · 2016 days ago · 112 km deep · 54 km away
  2. 2.685 km W of Akhiok, Alaska · 2013 days ago · 60 km deep · 87 km away
  3. 2.084 km W of Akhiok, Alaska · 2011 days ago · 47 km deep · 87 km away
  4. 2.630 km NE of Chignik, Alaska · 2007 days ago · 77 km deep · 85 km away
  5. 2.127 km SSE of Ugashik, Alaska · 2007 days ago · 6 km deep · 42 km away
  6. 2.534 km ENE of Chignik, Alaska · 2005 days ago · 65 km deep · 82 km away
  7. 2.123 km SE of Ugashik, Alaska · 2005 days ago · 117 km deep · 50 km away
  8. 1.974 km ENE of Ugashik, Alaska · 2002 days ago · 8 km deep · 93 km away
  9. 2.586 km SE of Ugashik, Alaska · 2000 days ago · 67 km deep · 31 km away
  10. 2.038 km SSE of Ugashik, Alaska · 1999 days ago · 14 km deep · 31 km away
  11. 2.240 km E of Ugashik, Alaska · 1998 days ago · 138 km deep · 68 km away
  12. 1.9115 km SE of Ugashik, Alaska · 1998 days ago · 20 km deep · 59 km away
  13. 2.4106 km E of Chignik, Alaska · 1997 days ago · 37 km deep · 87 km away
  14. 2.378 km E of Chignik, Alaska · 1997 days ago · 23 km deep · 86 km away
  15. 2.127 km E of Chignik, Alaska · 1997 days ago · 62 km deep · 95 km away
  16. 2.3100 km W of Akhiok, Alaska · 1997 days ago · 7 km deep · 70 km away
  17. 1.687 km E of Ugashik, Alaska · 1996 days ago · 2 km deep · 92 km away
  18. 2.7101 km SE of Ugashik, Alaska · 1995 days ago · 57 km deep · 40 km away
  19. 2.6114 km E of Chignik, Alaska · 1995 days ago · 51 km deep · 82 km away
  20. 2.272 km W of Akhiok, Alaska · 1992 days ago · 59 km deep · 99 km away
  21. 2.879 km WNW of Akhiok, Alaska · 1990 days ago · 53 km deep · 93 km away
  22. 1.655 km ENE of Ugashik, Alaska · 1990 days ago · 124 km deep · 93 km away
  23. 1.887 km E of Ugashik, Alaska · 1989 days ago · 76 km deep · 96 km away
  24. 2.7114 km E of Chignik, Alaska · 1988 days ago · 35 km deep · 90 km away
  25. 2.249 km SE of Ugashik, Alaska · 1987 days ago · 107 km deep · 26 km away
  26. 2.191 km SSE of Ugashik, Alaska · 1987 days ago · 77 km deep · 23 km away
  27. 2.4139 km E of Chignik, Alaska · 1982 days ago · 70 km deep · 98 km away
  28. 2.270 km WSW of Karluk, Alaska · 1981 days ago · 84 km deep · 96 km away
  29. 1.766 km WSW of Karluk, Alaska · 1980 days ago · 67 km deep · 100 km away
  30. 2.295 km WSW of Karluk, Alaska · 1979 days ago · 61 km deep · 71 km away
  31. 1.770 km SW of Karluk, Alaska · 1979 days ago · 71 km deep · 99 km away
  32. 1.783 km WSW of Karluk, Alaska · 1977 days ago · 26 km deep · 84 km away
  33. 2.773 km W of Akhiok, Alaska · 1974 days ago · 56 km deep · 97 km away
  34. 2.151 km SSE of Ugashik, Alaska · 1973 days ago · 90 km deep · 18 km away
  35. 2.331 km E of Chignik, Alaska · 1967 days ago · 92 km deep · 90 km away
  36. 1.8Alaska Peninsula · 1964 days ago · 12 km deep · 14 km away
  37. 1.873 km SE of Ugashik, Alaska · 1961 days ago · 69 km deep · 36 km away

Before

  1. 2.251 km S of Ugashik, Alaska · 2018 days ago · 108 km deep · 35 km away
  2. 1.685 km E of Ugashik, Alaska · 2018 days ago · 13 km deep · 98 km away
  3. 1.925 km SE of Ugashik, Alaska · 2020 days ago · 109 km deep · 48 km away
  4. 2.446 km E of Chignik, Alaska · 2020 days ago · 45 km deep · 85 km away
  5. 2.849 km E of Ugashik, Alaska · 2021 days ago · 119 km deep · 73 km away
  6. 1.851 km SSE of Ugashik, Alaska · 2022 days ago · 4 km deep · 20 km away
  7. 2.049 km ESE of Ugashik, Alaska · 2022 days ago · 91 km deep · 51 km away
  8. 2.459 km ESE of Port Heiden, Alaska · 2023 days ago · 93 km deep · 47 km away
  9. 1.935 km NNE of Port Heiden, Alaska · 2025 days ago · 22 km deep · 92 km away
  10. 1.955 km E of Ugashik, Alaska · 2026 days ago · 91 km deep · 67 km away
  11. 1.984 km E of Ugashik, Alaska · 2027 days ago · 76 km deep · 92 km away
  12. 1.783 km W of Karluk, Alaska · 2030 days ago · 85 km deep · 91 km away
  13. 2.237 km ENE of Chignik, Alaska · 2032 days ago · 65 km deep · 79 km away
  14. 2.883 km E of Ugashik, Alaska · 2032 days ago · 96 km deep · 89 km away
  15. 2.254 km SE of Ugashik, Alaska · 2033 days ago · 86 km deep · 26 km away
  16. 2.445 km SE of Port Heiden, Alaska · 2034 days ago · 94 km deep · 70 km away
  17. 2.840 km ENE of Ugashik, Alaska · 2035 days ago · 136 km deep · 84 km away
  18. 2.757 km ENE of Chignik, Alaska · 2035 days ago · 66 km deep · 61 km away
  19. 2.153 km E of Port Heiden, Alaska · 2036 days ago · 8 km deep · 48 km away
  20. 2.223 km ENE of Chignik, Alaska · 2037 days ago · 68 km deep · 92 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0213q7qa72. Read Mon, Sep 28, 2026, 10:47 PM UTC.