Alaska earthquakes

M1.7 earthquake 30 km SW of Unalaska, Alaska

A magnitude 1.7 earthquake struck 30 km SW of Unalaska, Alaska on Sat, Apr 24, 2021, 10:56 PM AKDT (06:56 UTC), 79 km (49 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
1.7 (ml), micro
Local time
UTC
2021-04-25 06:56:24 UTC
Depth
78.6 km (48.8 mi), intermediate-depth
Epicenter
53.650° N, 166.788° 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
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 33 in the 30 days before it.

After

  1. 1.731 km SE of Unalaska, Alaska · 1980 days ago · 43 km deep · 36 km away
  2. 2.6105 km S of Unalaska, Alaska · 1978 days ago · 32 km deep · 80 km away
  3. 3.6119 km E of Nikolski, Alaska · 1977 days ago · 51 km deep · 91 km away
  4. 2.160 km SSE of Akutan, Alaska · 1973 days ago · 68 km deep · 100 km away
  5. 1.629 km W of Akutan, Alaska · 1973 days ago · 71 km deep · 64 km away
  6. 1.718 km SSE of Akutan, Alaska · 1973 days ago · 77 km deep · 84 km away
  7. 2.058 km SSE of Akutan, Alaska · 1972 days ago · 52 km deep · 85 km away
  8. 1.875 km S of Akutan, Alaska · 1972 days ago · 22 km deep · 84 km away
  9. 1.57 km N of Dutch Harbor, Alaska · 1970 days ago · 10 km deep · 38 km away
  10. 1.972 km SSE of Unalaska, Alaska · 1963 days ago · 20 km deep · 64 km away
  11. 1.645 km SSE of Akutan, Alaska · 1962 days ago · 34 km deep · 88 km away
  12. 3.733 km SSW of Unalaska, Alaska · 1956 days ago · 77 km deep · 4 km away
  13. 1.686 km SSW of Unalaska, Alaska · 1946 days ago · 23 km deep · 57 km away
  14. 3.472 km SSW of Unalaska, Alaska · 1945 days ago · 53 km deep · 44 km away
  15. 3.881 km S of Unalaska, Alaska · 1941 days ago · 35 km deep · 58 km away
  16. 1.929 km ESE of Unalaska, Alaska · 1940 days ago · 73 km deep · 49 km away
  17. 2.042 km SSW of Unalaska, Alaska · 1938 days ago · 75 km deep · 13 km away
  18. 2.636 km ESE of Unalaska, Alaska · 1928 days ago · 78 km deep · 52 km away
  19. 1.893 km SSW of Unalaska, Alaska · 1927 days ago · 43 km deep · 64 km away
  20. 3.080 km SSE of Akutan, Alaska · 1927 days ago · 35 km deep · 98 km away
  21. 3.454 km SSE of Akutan, Alaska · 1927 days ago · 89 km deep · 79 km away
  22. 1.8121 km S of Unalaska, Alaska · 1923 days ago · 5 km deep · 96 km away

Before

  1. 1.778 km SSE of Akutan, Alaska · 1982 days ago · 17 km deep · 98 km away
  2. 1.865 km SE of Unalaska, Alaska · 1983 days ago · 11 km deep · 67 km away
  3. 2.039 km SSE of Akutan, Alaska · 1984 days ago · 77 km deep · 85 km away
  4. 3.286 km E of Nikolski, Alaska · 1985 days ago · 35 km deep · 98 km away
  5. 2.169 km SE of Unalaska, Alaska · 1986 days ago · 23 km deep · 74 km away
  6. 1.926 km ESE of Unalaska, Alaska · 1986 days ago · 74 km deep · 45 km away
  7. 1.523 km W of Dutch Harbor, Alaska · 1987 days ago · 5 km deep · 27 km away
  8. 2.68 km WNW of Dutch Harbor, Alaska · 1988 days ago · 114 km deep · 30 km away
  9. 1.582 km SW of Unalaska, Alaska · 1989 days ago · 62 km deep · 53 km away
  10. 1.687 km SE of Unalaska, Alaska · 1989 days ago · 68 km deep · 87 km away
  11. 1.663 km SSW of Unalaska, Alaska · 1990 days ago · 30 km deep · 34 km away
  12. 1.769 km S of Unalaska, Alaska · 1991 days ago · 21 km deep · 47 km away
  13. 1.986 km SW of Unalaska, Alaska · 1992 days ago · 26 km deep · 57 km away
  14. 1.99 km E of Akutan, Alaska · 1993 days ago · 101 km deep · 93 km away
  15. 2.024 km S of Akutan, Alaska · 1994 days ago · 98 km deep · 70 km away
  16. 1.879 km SE of Unalaska, Alaska · 1994 days ago · 16 km deep · 76 km away
  17. 2.058 km S of Akutan, Alaska · 1994 days ago · 82 km deep · 75 km away
  18. 2.9Fox Islands, Aleutian Islands, Alaska · 1996 days ago · 52 km deep · 47 km away
  19. 2.045 km SE of Unalaska, Alaska · 1996 days ago · 39 km deep · 48 km away
  20. 1.570 km WSW of Unalaska, Alaska · 1997 days ago · 8 km deep · 47 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0215aapkez. Read Sun, Sep 27, 2026, 8:55 PM UTC.