Alaska earthquakes

M1.7 earthquake 165 km S of Unalaska, Alaska

A magnitude 1.7 earthquake struck 165 km S of Unalaska, Alaska on Sun, Jun 27, 2021, 4:45 PM AKDT (00:45 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M4.7 81 km SSW 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
2021-06-28 00:45:57 UTC
Depth
19.2 km (11.9 mi), shallow
Epicenter
52.394° N, 166.252° 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
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 40 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 1.7102 km E of Nikolski, Alaska · 1913 days ago · 26 km deep · 92 km away
  2. 1.877 km S of Unalaska, Alaska · 1913 days ago · 25 km deep · 95 km away
  3. 3.5101 km SSW of Unalaska, Alaska · 1912 days ago · 35 km deep · 95 km away
  4. 4.781 km SSW of Unalaska, Alaska · 1912 days ago · 47 km deep · 96 km away · felt by 3
  5. 2.075 km SSW of Unalaska, Alaska · 1912 days ago · 33 km deep · 99 km away
  6. 2.2126 km S of Unalaska, Alaska · 1907 days ago · 12 km deep · 49 km away
  7. 2.9126 km S of Unalaska, Alaska · 1906 days ago · 8 km deep · 47 km away
  8. 2.2210 km SSE of Unalaska, Alaska · 1906 days ago · 12 km deep · 72 km away
  9. 1.9109 km SSE of Unalaska, Alaska · 1905 days ago · 14 km deep · 82 km away
  10. 1.679 km S of Unalaska, Alaska · 1905 days ago · 18 km deep · 91 km away
  11. 1.686 km SSE of Unalaska, Alaska · 1905 days ago · 17 km deep · 85 km away
  12. 2.181 km SSW of Unalaska, Alaska · 1904 days ago · 26 km deep · 94 km away
  13. 1.9141 km ESE of Nikolski, Alaska · 1901 days ago · 25 km deep · 47 km away
  14. 1.6125 km S of Unalaska, Alaska · 1901 days ago · 17 km deep · 46 km away
  15. 1.786 km S of Unalaska, Alaska · 1900 days ago · 31 km deep · 88 km away
  16. 1.6141 km ESE of Nikolski, Alaska · 1892 days ago · 11 km deep · 45 km away
  17. 1.5106 km SSE of Unalaska, Alaska · 1892 days ago · 14 km deep · 86 km away
  18. 2.6185 km SE of Nikolski, Alaska · 1891 days ago · 21 km deep · 88 km away
  19. 1.8192 km SSE of Unalaska, Alaska · 1891 days ago · 19 km deep · 56 km away
  20. 2.781 km S of Unalaska, Alaska · 1888 days ago · 35 km deep · 89 km away
  21. 1.5103 km E of Nikolski, Alaska · 1885 days ago · 48 km deep · 92 km away
  22. 2.8195 km SSE of Unalaska, Alaska · 1884 days ago · 10 km deep · 60 km away
  23. 2.5187 km S of Unalaska, Alaska · 1881 days ago · 10 km deep · 26 km away
  24. 2.0144 km ESE of Nikolski, Alaska · 1881 days ago · 25 km deep · 42 km away
  25. 3.094 km SSW of Unalaska, Alaska · 1880 days ago · 35 km deep · 85 km away
  26. 3.588 km SSW of Unalaska, Alaska · 1880 days ago · 35 km deep · 94 km away
  27. 1.688 km SSW of Unalaska, Alaska · 1880 days ago · 26 km deep · 94 km away
  28. 1.789 km SSW of Unalaska, Alaska · 1880 days ago · 26 km deep · 91 km away
  29. 2.0100 km E of Nikolski, Alaska · 1878 days ago · 26 km deep · 92 km away
  30. 2.2171 km SE of Unalaska, Alaska · 1877 days ago · 26 km deep · 86 km away
  31. 2.8192 km SE of Nikolski, Alaska · 1876 days ago · 10 km deep · 54 km away
  32. 2.0137 km S of Unalaska, Alaska · 1876 days ago · 9 km deep · 47 km away
  33. 1.582 km SSW of Unalaska, Alaska · 1875 days ago · 25 km deep · 98 km away
  34. 1.5141 km S of Unalaska, Alaska · 1873 days ago · 13 km deep · 44 km away
  35. 3.5147 km ESE of Nikolski, Alaska · 1872 days ago · 18 km deep · 41 km away
  36. 1.786 km SSW of Unalaska, Alaska · 1870 days ago · 26 km deep · 89 km away
  37. 1.595 km E of Nikolski, Alaska · 1866 days ago · 49 km deep · 99 km away
  38. 1.8151 km ESE of Nikolski, Alaska · 1865 days ago · 18 km deep · 35 km away
  39. 2.8185 km SSE of Unalaska, Alaska · 1861 days ago · 10 km deep · 26 km away
  40. 1.8200 km SSE of Unalaska, Alaska · 1860 days ago · 26 km deep · 95 km away

Before

  1. 1.8121 km S of Unalaska, Alaska · 1923 days ago · 5 km deep · 52 km away
  2. 3.881 km S of Unalaska, Alaska · 1941 days ago · 35 km deep · 86 km away
  3. 3.6217 km SE of Nikolski, Alaska · 1948 days ago · 10 km deep · 63 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021881gw26. Read Sun, Sep 27, 2026, 10:07 PM UTC.