Alaska earthquakes

M1.9 earthquake 69 km E of Nikolski, Alaska

A magnitude 1.9 earthquake struck 69 km E of Nikolski, Alaska on Mon, Apr 12, 2021, 8:34 PM AKDT (04:34 UTC), 40 km (25 mi) below the surface.

A larger quake followed: M3.8 81 km S of Unalaska, 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
1.9 (ml), micro
Local time
UTC
2021-04-13 04:34:19 UTC
Depth
39.8 km (24.7 mi), shallow
Epicenter
52.988° N, 167.824° 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
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 31 in the 30 days before it.

After

  1. 1.986 km SW of Unalaska, Alaska · 1992 days ago · 26 km deep · 44 km away
  2. 1.769 km S of Unalaska, Alaska · 1991 days ago · 21 km deep · 90 km away
  3. 2.6131 km S of Unalaska, Alaska · 1991 days ago · 4 km deep · 87 km away
  4. 3.0142 km ESE of Nikolski, Alaska · 1990 days ago · 6 km deep · 80 km away
  5. 1.663 km SSW of Unalaska, Alaska · 1990 days ago · 30 km deep · 71 km away
  6. 1.582 km SW of Unalaska, Alaska · 1989 days ago · 62 km deep · 48 km away
  7. 1.755 km ESE of Nikolski, Alaska · 1989 days ago · 26 km deep · 39 km away
  8. 2.865 km SE of Nikolski, Alaska · 1987 days ago · 35 km deep · 46 km away
  9. 3.234 km SSE of Nikolski, Alaska · 1987 days ago · 35 km deep · 72 km away
  10. 3.286 km E of Nikolski, Alaska · 1985 days ago · 35 km deep · 19 km away
  11. 2.127 km SSE of Nikolski, Alaska · 1984 days ago · 52 km deep · 71 km away
  12. 2.869 km SE of Nikolski, Alaska · 1980 days ago · 22 km deep · 46 km away
  13. 2.792 km ESE of Nikolski, Alaska · 1980 days ago · 26 km deep · 34 km away
  14. 3.17 km NW of Nikolski, Alaska · 1979 days ago · 80 km deep · 74 km away
  15. 2.6105 km S of Unalaska, Alaska · 1978 days ago · 32 km deep · 70 km away
  16. 3.6119 km E of Nikolski, Alaska · 1977 days ago · 51 km deep · 51 km away
  17. 2.088 km E of Nikolski, Alaska · 1972 days ago · 50 km deep · 27 km away
  18. 3.653 km ESE of Nikolski, Alaska · 1971 days ago · 35 km deep · 43 km away
  19. 2.240 km ESE of Nikolski, Alaska · 1962 days ago · 30 km deep · 40 km away
  20. 2.955 km SE of Nikolski, Alaska · 1962 days ago · 35 km deep · 53 km away
  21. 2.746 km ESE of Nikolski, Alaska · 1956 days ago · 24 km deep · 29 km away
  22. 3.733 km SSW of Unalaska, Alaska · 1956 days ago · 77 km deep · 98 km away
  23. 2.637 km ESE of Nikolski, Alaska · 1946 days ago · 34 km deep · 44 km away
  24. 1.686 km SSW of Unalaska, Alaska · 1945 days ago · 23 km deep · 46 km away
  25. 3.472 km SSW of Unalaska, Alaska · 1945 days ago · 53 km deep · 72 km away
  26. 3.881 km S of Unalaska, Alaska · 1941 days ago · 35 km deep · 84 km away
  27. 2.042 km SSW of Unalaska, Alaska · 1938 days ago · 75 km deep · 90 km away

Before

  1. 2.97 km N of Nikolski, Alaska · 1995 days ago · 70 km deep · 68 km away
  2. 2.9Fox Islands, Aleutian Islands, Alaska · 1996 days ago · 52 km deep · 59 km away
  3. 3.191 km SE of Nikolski, Alaska · 1996 days ago · 12 km deep · 69 km away
  4. 1.570 km WSW of Unalaska, Alaska · 1997 days ago · 8 km deep · 71 km away
  5. 1.669 km WSW of Unalaska, Alaska · 1997 days ago · 14 km deep · 70 km away
  6. 2.244 km ESE of Nikolski, Alaska · 1999 days ago · 55 km deep · 36 km away
  7. 2.130 km S of Nikolski, Alaska · 1999 days ago · 41 km deep · 77 km away
  8. 2.344 km SSW of Nikolski, Alaska · 2000 days ago · 70 km deep · 94 km away
  9. 1.887 km SSW of Unalaska, Alaska · 2000 days ago · 26 km deep · 57 km away
  10. 1.953 km ESE of Nikolski, Alaska · 2001 days ago · 26 km deep · 32 km away
  11. 1.849 km SW of Unalaska, Alaska · 2002 days ago · 68 km deep · 81 km away
  12. 3.446 km ESE of Nikolski, Alaska · 2003 days ago · 35 km deep · 39 km away
  13. 2.11 km SSW of Nikolski, Alaska · 2004 days ago · 50 km deep · 70 km away
  14. 3.093 km WSW of Unalaska, Alaska · 2004 days ago · 71 km deep · 68 km away
  15. 2.077 km SSW of Unalaska, Alaska · 2007 days ago · 25 km deep · 74 km away
  16. 2.548 km ESE of Nikolski, Alaska · 2010 days ago · 35 km deep · 34 km away
  17. 1.6104 km E of Nikolski, Alaska · 2012 days ago · 26 km deep · 36 km away
  18. 2.049 km SSE of Nikolski, Alaska · 2012 days ago · 21 km deep · 66 km away
  19. 1.771 km SSW of Unalaska, Alaska · 2013 days ago · 50 km deep · 70 km away
  20. 1.8107 km E of Nikolski, Alaska · 2013 days ago · 16 km deep · 39 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0214qext4m. Read Sun, Sep 27, 2026, 7:04 PM UTC.