Alaska earthquakes

M1.9 earthquake 18 km NNW of Old Harbor, Alaska

A magnitude 1.9 earthquake struck 18 km NNW of Old Harbor, Alaska on Sun, Jul 25, 2021, 12:37 AM AKDT (08:37 UTC), 20 km (13 mi) below the surface.

A larger quake followed: M2.9 40 km SW of Karluk, 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
2021-07-25 08:37:05 UTC
Depth
20.2 km (12.6 mi), shallow
Epicenter
57.351° N, 153.451° 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
27

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 23 in the 30 days before it.

After

  1. 2.428 km NW of Karluk, Alaska · 1893 days ago · 35 km deep · 93 km away
  2. 2.228 km WNW of Karluk, Alaska · 1893 days ago · 53 km deep · 93 km away
  3. 2.730 km E of Old Harbor, Alaska · 1889 days ago · 10 km deep · 42 km away
  4. 2.831 km NNW of Akhiok, Alaska · 1889 days ago · 35 km deep · 53 km away
  5. 2.130 km ESE of Old Harbor, Alaska · 1888 days ago · 9 km deep · 47 km away
  6. 1.836 km S of Akhiok, Alaska · 1887 days ago · 8 km deep · 94 km away
  7. 2.827 km W of Akhiok, Alaska · 1884 days ago · 4 km deep · 83 km away
  8. 1.830 km W of Akhiok, Alaska · 1883 days ago · 20 km deep · 84 km away
  9. 1.713 km NE of Larsen Bay, Alaska · 1883 days ago · 13 km deep · 38 km away
  10. 1.89 km NE of Chiniak, Alaska · 1883 days ago · 18 km deep · 84 km away
  11. 2.010 km ESE of Karluk, Alaska · 1882 days ago · 57 km deep · 54 km away
  12. 1.821 km WSW of Womens Bay, Alaska · 1879 days ago · 47 km deep · 41 km away
  13. 1.610 km NNE of Port Lions, Alaska · 1877 days ago · 46 km deep · 77 km away
  14. 1.630 km N of Akhiok, Alaska · 1877 days ago · 8 km deep · 42 km away
  15. 1.630 km SSW of Karluk, Alaska · 1877 days ago · 10 km deep · 69 km away
  16. 1.8Kodiak Island region, Alaska · 1875 days ago · 38 km deep · 10 km away
  17. 2.940 km SW of Karluk, Alaska · 1874 days ago · 51 km deep · 89 km away
  18. 1.9Kodiak Island region, Alaska · 1873 days ago · 2 km deep · 59 km away
  19. 2.536 km NNE of Karluk, Alaska · 1872 days ago · 54 km deep · 79 km away
  20. 1.520 km WNW of Karluk, Alaska · 1871 days ago · 74 km deep · 85 km away
  21. 2.431 km SW of Akhiok, Alaska · 1870 days ago · 9 km deep · 93 km away
  22. 1.925 km SE of Larsen Bay, Alaska · 1864 days ago · 7 km deep · 16 km away
  23. 1.9Kodiak Island region, Alaska · 1864 days ago · 56 km deep · 90 km away
  24. 2.0Kodiak Island region, Alaska · 1863 days ago · 61 km deep · 83 km away
  25. 2.815 km NE of Kodiak, Alaska · 1862 days ago · 42 km deep · 94 km away · felt by 1
  26. 2.421 km SW of Larsen Bay, Alaska · 1862 days ago · 40 km deep · 46 km away
  27. 2.137 km WSW of Karluk, Alaska · 1859 days ago · 72 km deep · 93 km away
  28. 1.57 km WNW of Karluk, Alaska · 1859 days ago · 51 km deep · 72 km away
  29. 1.750 km NNE of Larsen Bay, Alaska · 1855 days ago · 59 km deep · 72 km away
  30. 1.75 km N of Karluk, Alaska · 1855 days ago · 47 km deep · 66 km away
  31. 1.831 km E of Akhiok, Alaska · 1855 days ago · 31 km deep · 49 km away
  32. 2.114 km ENE of Chiniak, Alaska · 1855 days ago · 9 km deep · 90 km away
  33. 1.659 km SE of Akhiok, Alaska · 1854 days ago · 2 km deep · 93 km away
  34. 1.732 km S of Karluk, Alaska · 1852 days ago · 43 km deep · 67 km away
  35. 1.953 km SW of Karluk, Alaska · 1850 days ago · 61 km deep · 94 km away
  36. 2.035 km SSE of Akhiok, Alaska · 1845 days ago · 26 km deep · 82 km away
  37. 1.718 km NW of Karluk, Alaska · 1844 days ago · 53 km deep · 83 km away
  38. 1.837 km NNE of Karluk, Alaska · 1843 days ago · 51 km deep · 71 km away
  39. 1.59 km NNE of Larsen Bay, Alaska · 1842 days ago · 30 km deep · 42 km away
  40. 2.026 km WNW of Karluk, Alaska · 1841 days ago · 70 km deep · 91 km away

Before

  1. 1.617 km NNE of Old Harbor, Alaska · 1894 days ago · 43 km deep · 17 km away
  2. 1.634 km N of Larsen Bay, Alaska · 1895 days ago · 13 km deep · 64 km away
  3. 1.925 km WNW of Akhiok, Alaska · 1896 days ago · 19 km deep · 73 km away
  4. 1.827 km WSW of Karluk, Alaska · 1898 days ago · 3 km deep · 88 km away
  5. 3.021 km SSE of Karluk, Alaska · 1900 days ago · 38 km deep · 51 km away
  6. 2.217 km SW of Akhiok, Alaska · 1901 days ago · 47 km deep · 80 km away
  7. 1.8Kodiak Island region, Alaska · 1901 days ago · 39 km deep · 62 km away
  8. 2.142 km W of Port Lions, Alaska · 1904 days ago · 48 km deep · 62 km away
  9. 1.537 km W of Akhiok, Alaska · 1906 days ago · 2 km deep · 95 km away
  10. 1.626 km NNE of Larsen Bay, Alaska · 1907 days ago · 45 km deep · 54 km away
  11. 2.135 km W of Karluk, Alaska · 1908 days ago · 79 km deep · 97 km away
  12. 1.620 km SW of Old Harbor, Alaska · 1909 days ago · 25 km deep · 31 km away
  13. 2.040 km NNW of Karluk, Alaska · 1910 days ago · 64 km deep · 94 km away
  14. 2.117 km NNE of Karluk, Alaska · 1910 days ago · 70 km deep · 65 km away
  15. 1.5Kodiak Island region, Alaska · 1911 days ago · 53 km deep · 86 km away
  16. 2.03 km SSE of Akhiok, Alaska · 1911 days ago · 41 km deep · 65 km away
  17. 2.833 km NNE of Akhiok, Alaska · 1914 days ago · 53 km deep · 39 km away
  18. 1.840 km NW of Akhiok, Alaska · 1915 days ago · 42 km deep · 71 km away
  19. 1.857 km WNW of Akhiok, Alaska · 1916 days ago · 50 km deep · 100 km away
  20. 1.628 km SSW of Larsen Bay, Alaska · 1918 days ago · 29 km deep · 39 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219gtowi1. Read Thu, Oct 1, 2026, 12:34 AM UTC.