Alaska earthquakes

M1.6 earthquake 55 km ENE of Ugashik, Alaska

A magnitude 1.6 earthquake struck 55 km ENE of Ugashik, Alaska on Sun, Apr 18, 2021, 3:15 AM AKDT (11:15 UTC), 124 km (77 mi) below the surface.

A larger quake followed: M3.7 85 km ESE of Egegik, 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
2021-04-18 11:15:44 UTC
Depth
124.1 km (77.1 mi), intermediate-depth
Epicenter
57.748° N, 156.577° 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
24

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 45 in the 60 days after this one and 25 in the 30 days before it.

After

  1. 1.887 km E of Ugashik, Alaska · 1989 days ago · 76 km deep · 41 km away
  2. 2.858 km SE of King Salmon, Alaska · 1988 days ago · 142 km deep · 67 km away
  3. 1.984 km ESE of King Salmon, Alaska · 1988 days ago · 1 km deep · 89 km away
  4. 2.249 km SE of Ugashik, Alaska · 1987 days ago · 107 km deep · 67 km away
  5. 2.254 km ESE of King Salmon, Alaska · 1987 days ago · 153 km deep · 92 km away
  6. 2.149 km WNW of Karluk, Alaska · 1987 days ago · 71 km deep · 78 km away
  7. 2.270 km WSW of Karluk, Alaska · 1981 days ago · 84 km deep · 80 km away
  8. 3.785 km ESE of Egegik, Alaska · 1981 days ago · 128 km deep · 34 km away
  9. 1.645 km WNW of Karluk, Alaska · 1980 days ago · 75 km deep · 87 km away
  10. 1.766 km WSW of Karluk, Alaska · 1980 days ago · 67 km deep · 81 km away
  11. 1.966 km WSW of Karluk, Alaska · 1980 days ago · 81 km deep · 76 km away
  12. 2.295 km WSW of Karluk, Alaska · 1979 days ago · 61 km deep · 71 km away
  13. 1.770 km SW of Karluk, Alaska · 1979 days ago · 71 km deep · 94 km away
  14. 1.783 km WSW of Karluk, Alaska · 1977 days ago · 26 km deep · 82 km away
  15. 1.778 km ENE of Ugashik, Alaska · 1977 days ago · 132 km deep · 23 km away
  16. 2.151 km SSE of Ugashik, Alaska · 1973 days ago · 90 km deep · 83 km away
  17. 2.742 km ESE of King Salmon, Alaska · 1973 days ago · 183 km deep · 92 km away
  18. 2.234 km WNW of Karluk, Alaska · 1970 days ago · 71 km deep · 97 km away
  19. 1.877 km NW of Karluk, Alaska · 1970 days ago · 16 km deep · 76 km away
  20. 1.852 km SE of King Salmon, Alaska · 1964 days ago · 156 km deep · 75 km away
  21. 1.873 km SE of Ugashik, Alaska · 1962 days ago · 69 km deep · 72 km away
  22. 1.635 km WNW of Karluk, Alaska · 1961 days ago · 76 km deep · 95 km away
  23. 1.557 km WNW of Karluk, Alaska · 1950 days ago · 57 km deep · 73 km away
  24. 1.889 km SE of Ugashik, Alaska · 1949 days ago · 0 km deep · 85 km away
  25. 1.877 km WNW of Karluk, Alaska · 1948 days ago · 6 km deep · 58 km away
  26. 2.488 km ESE of Egegik, Alaska · 1947 days ago · 7 km deep · 44 km away
  27. 2.190 km ESE of Egegik, Alaska · 1947 days ago · 10 km deep · 45 km away
  28. 2.4Alaska Peninsula · 1947 days ago · 4 km deep · 51 km away
  29. 3.186 km ESE of Egegik, Alaska · 1945 days ago · 3 km deep · 45 km away
  30. 1.884 km SSE of King Salmon, Alaska · 1945 days ago · 0 km deep · 47 km away
  31. 2.562 km ENE of Ugashik, Alaska · 1943 days ago · 132 km deep · 8 km away
  32. 2.244 km E of Ugashik, Alaska · 1942 days ago · 119 km deep · 30 km away
  33. 2.439 km WSW of Egegik, Alaska · 1941 days ago · 7 km deep · 91 km away
  34. 1.588 km NW of Karluk, Alaska · 1940 days ago · 3 km deep · 90 km away
  35. 1.982 km ESE of Egegik, Alaska · 1938 days ago · 130 km deep · 37 km away
  36. 3.088 km ESE of Egegik, Alaska · 1936 days ago · 0 km deep · 46 km away
  37. 1.688 km WNW of Karluk, Alaska · 1936 days ago · 15 km deep · 45 km away
  38. 1.689 km WNW of Karluk, Alaska · 1936 days ago · 18 km deep · 45 km away
  39. 1.693 km WNW of Karluk, Alaska · 1936 days ago · 5 km deep · 45 km away
  40. 1.991 km ESE of Egegik, Alaska · 1936 days ago · 8 km deep · 44 km away
  41. 1.986 km WNW of Karluk, Alaska · 1936 days ago · 18 km deep · 48 km away
  42. 1.888 km WNW of Karluk, Alaska · 1936 days ago · 17 km deep · 46 km away
  43. 1.587 km WNW of Karluk, Alaska · 1936 days ago · 3 km deep · 47 km away
  44. 1.571 km W of Karluk, Alaska · 1936 days ago · 35 km deep · 59 km away
  45. 1.975 km SW of Karluk, Alaska · 1934 days ago · 64 km deep · 96 km away

Before

  1. 2.879 km WNW of Akhiok, Alaska · 1990 days ago · 53 km deep · 99 km away
  2. 2.328 km N of Pilot Point, Alaska · 1993 days ago · 189 km deep · 57 km away
  3. 1.5Alaska Peninsula · 1994 days ago · 152 km deep · 97 km away
  4. 1.946 km W of Karluk, Alaska · 1994 days ago · 65 km deep · 82 km away
  5. 2.979 km WNW of Karluk, Alaska · 1995 days ago · 102 km deep · 62 km away
  6. 1.962 km NW of Karluk, Alaska · 1996 days ago · 97 km deep · 80 km away
  7. 1.687 km E of Ugashik, Alaska · 1996 days ago · 2 km deep · 44 km away
  8. 2.3100 km W of Akhiok, Alaska · 1997 days ago · 7 km deep · 96 km away
  9. 2.240 km E of Ugashik, Alaska · 1998 days ago · 138 km deep · 24 km away
  10. 2.280 km ENE of Ugashik, Alaska · 1999 days ago · 127 km deep · 25 km away
  11. 2.578 km NW of Karluk, Alaska · 1999 days ago · 109 km deep · 76 km away
  12. 3.163 km ENE of Ugashik, Alaska · 1999 days ago · 136 km deep · 8 km away · felt by 2
  13. 2.038 km SSE of Ugashik, Alaska · 2000 days ago · 14 km deep · 75 km away
  14. 2.586 km SE of Ugashik, Alaska · 2001 days ago · 67 km deep · 91 km away
  15. 1.974 km ENE of Ugashik, Alaska · 2002 days ago · 8 km deep · 26 km away
  16. 1.8Alaska Peninsula · 2005 days ago · 65 km deep · 84 km away
  17. 2.123 km SE of Ugashik, Alaska · 2005 days ago · 117 km deep · 51 km away
  18. 2.127 km SSE of Ugashik, Alaska · 2007 days ago · 6 km deep · 60 km away
  19. 1.680 km ESE of Egegik, Alaska · 2013 days ago · 138 km deep · 32 km away
  20. 1.836 km WSW of Karluk, Alaska · 2016 days ago · 69 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0214ysokpr. Read Tue, Sep 29, 2026, 1:13 AM UTC.