Alaska earthquakes

M1.9 earthquake 17 km W of False Pass, Alaska

A magnitude 1.9 earthquake struck 17 km W of False Pass, Alaska on Fri, Aug 27, 2021, 6:43 AM AKDT (14:43 UTC), 105 km (65 mi) below the surface.

A larger quake followed: M3.3 Unimak Island region, 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, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-08-27 14:43:23 UTC
Depth
104.7 km (65.1 mi), intermediate-depth
Epicenter
54.873° N, 163.689° 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
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 36 in the 60 days after this one and 32 in the 30 days before it.

After

  1. 1.693 km SSW of False Pass, Alaska · 1860 days ago · 25 km deep · 87 km away
  2. 1.943 km SSE of False Pass, Alaska · 1860 days ago · 56 km deep · 53 km away
  3. 1.758 km S of False Pass, Alaska · 1859 days ago · 60 km deep · 64 km away
  4. 2.725 km ENE of Cold Bay, Alaska · 1856 days ago · 124 km deep · 96 km away
  5. 1.678 km SSW of False Pass, Alaska · 1856 days ago · 70 km deep · 73 km away
  6. 2.188 km SW of False Pass, Alaska · 1856 days ago · 76 km deep · 78 km away
  7. 1.661 km SW of False Pass, Alaska · 1856 days ago · 73 km deep · 55 km away
  8. 1.991 km E of Akutan, Alaska · 1855 days ago · 66 km deep · 85 km away
  9. 1.799 km S of False Pass, Alaska · 1854 days ago · 42 km deep · 100 km away
  10. 1.712 km SSW of False Pass, Alaska · 1850 days ago · 115 km deep · 19 km away
  11. 1.680 km ENE of Akutan, Alaska · 1849 days ago · 29 km deep · 81 km away
  12. 1.834 km S of False Pass, Alaska · 1849 days ago · 78 km deep · 39 km away
  13. 2.897 km S of False Pass, Alaska · 1847 days ago · 35 km deep · 99 km away
  14. 3.3Unimak Island region, Alaska · 1843 days ago · 71 km deep · 64 km away
  15. 2.092 km SSW of False Pass, Alaska · 1842 days ago · 51 km deep · 92 km away
  16. 1.938 km S of False Pass, Alaska · 1842 days ago · 69 km deep · 42 km away
  17. 2.393 km S of False Pass, Alaska · 1841 days ago · 26 km deep · 99 km away
  18. 2.043 km ESE of False Pass, Alaska · 1838 days ago · 11 km deep · 61 km away
  19. 2.279 km S of King Cove, Alaska · 1836 days ago · 14 km deep · 98 km away
  20. 2.092 km S of False Pass, Alaska · 1832 days ago · 21 km deep · 94 km away
  21. 1.511 km NE of King Cove, Alaska · 1828 days ago · 4 km deep · 100 km away
  22. 1.979 km SE of False Pass, Alaska · 1827 days ago · 33 km deep · 93 km away
  23. 2.151 km S of False Pass, Alaska · 1827 days ago · 63 km deep · 55 km away
  24. 1.632 km S of False Pass, Alaska · 1823 days ago · 11 km deep · 41 km away
  25. 2.467 km SSW of False Pass, Alaska · 1815 days ago · 75 km deep · 62 km away
  26. 2.679 km E of Akutan, Alaska · 1815 days ago · 69 km deep · 91 km away
  27. 2.171 km ENE of Akutan, Alaska · 1814 days ago · 82 km deep · 87 km away
  28. 2.153 km S of King Cove, Alaska · 1813 days ago · 52 km deep · 90 km away
  29. 2.569 km SSW of False Pass, Alaska · 1812 days ago · 61 km deep · 68 km away
  30. 2.075 km E of Akutan, Alaska · 1812 days ago · 26 km deep · 91 km away
  31. 3.160 km WNW of Cold Bay, Alaska · 1810 days ago · 163 km deep · 60 km away
  32. 2.364 km S of False Pass, Alaska · 1809 days ago · 48 km deep · 71 km away
  33. 2.212 km WNW of Cold Bay, Alaska · 1809 days ago · 106 km deep · 64 km away
  34. 3.179 km SSE of False Pass, Alaska · 1809 days ago · 35 km deep · 91 km away
  35. 2.0102 km SSW of False Pass, Alaska · 1806 days ago · 20 km deep · 99 km away
  36. 2.557 km SW of False Pass, Alaska · 1805 days ago · 93 km deep · 49 km away

Before

  1. 1.770 km S of False Pass, Alaska · 1861 days ago · 31 km deep · 75 km away
  2. 1.889 km S of False Pass, Alaska · 1863 days ago · 26 km deep · 93 km away
  3. 1.536 km S of False Pass, Alaska · 1863 days ago · 56 km deep · 45 km away
  4. 1.631 km SSE of False Pass, Alaska · 1864 days ago · 11 km deep · 40 km away
  5. 1.955 km S of King Cove, Alaska · 1864 days ago · 15 km deep · 91 km away
  6. 1.813 km SSE of King Cove, Alaska · 1865 days ago · 5 km deep · 92 km away
  7. 2.537 km SSE of False Pass, Alaska · 1865 days ago · 10 km deep · 47 km away
  8. 1.9Unimak Island region, Alaska · 1867 days ago · 13 km deep · 36 km away
  9. 2.557 km SE of False Pass, Alaska · 1867 days ago · 94 km deep · 73 km away
  10. 1.570 km SSW of False Pass, Alaska · 1869 days ago · 53 km deep · 71 km away
  11. 2.284 km SSW of False Pass, Alaska · 1871 days ago · 35 km deep · 84 km away
  12. 2.185 km S of False Pass, Alaska · 1876 days ago · 46 km deep · 88 km away
  13. 1.580 km ENE of Akutan, Alaska · 1876 days ago · 6 km deep · 78 km away
  14. 1.854 km W of False Pass, Alaska · 1877 days ago · 3 km deep · 37 km away
  15. 1.985 km SSE of False Pass, Alaska · 1877 days ago · 26 km deep · 96 km away
  16. 1.983 km SSE of False Pass, Alaska · 1877 days ago · 25 km deep · 95 km away
  17. 1.654 km WSW of False Pass, Alaska · 1877 days ago · 5 km deep · 38 km away
  18. 2.155 km WSW of False Pass, Alaska · 1877 days ago · 5 km deep · 38 km away
  19. 1.553 km WSW of False Pass, Alaska · 1877 days ago · 5 km deep · 37 km away
  20. 2.153 km WSW of False Pass, Alaska · 1877 days ago · 4 km deep · 37 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021azi1amm. Read Thu, Oct 1, 2026, 6:29 PM UTC.