Alaska earthquakes

M1.6 earthquake 141 km ESE of Nikolski, Alaska

A magnitude 1.6 earthquake struck 141 km ESE of Nikolski, Alaska on Fri, Jul 23, 2021, 4:16 PM AKDT (00:16 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M4.6 70 km E of Nikolski, 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
1.6 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-07-24 00:16:58 UTC
Depth
11.3 km (7.0 mi), shallow
Epicenter
52.567° N, 166.858° 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
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 62 in the 60 days after this one and 27 in the 30 days before it.

After

  1. 1.5106 km SSE of Unalaska, Alaska · 1897 days ago · 14 km deep · 98 km away
  2. 2.6185 km SE of Nikolski, Alaska · 1896 days ago · 21 km deep · 93 km away
  3. 2.747 km SE of Nikolski, Alaska · 1894 days ago · 33 km deep · 99 km away
  4. 1.597 km SSW of Unalaska, Alaska · 1894 days ago · 47 km deep · 70 km away
  5. 2.781 km S of Unalaska, Alaska · 1894 days ago · 35 km deep · 66 km away
  6. 2.756 km ESE of Nikolski, Alaska · 1892 days ago · 32 km deep · 87 km away
  7. 1.5103 km E of Nikolski, Alaska · 1890 days ago · 48 km deep · 49 km away
  8. 1.575 km SW of Unalaska, Alaska · 1889 days ago · 68 km deep · 98 km away
  9. 1.783 km SSW of Unalaska, Alaska · 1889 days ago · 47 km deep · 72 km away
  10. 2.249 km ESE of Nikolski, Alaska · 1886 days ago · 26 km deep · 91 km away
  11. 2.5187 km S of Unalaska, Alaska · 1886 days ago · 10 km deep · 70 km away
  12. 2.0144 km ESE of Nikolski, Alaska · 1886 days ago · 25 km deep · 4 km away
  13. 3.094 km SSW of Unalaska, Alaska · 1885 days ago · 35 km deep · 54 km away
  14. 3.588 km SSW of Unalaska, Alaska · 1885 days ago · 35 km deep · 62 km away
  15. 1.688 km SSW of Unalaska, Alaska · 1885 days ago · 26 km deep · 62 km away
  16. 1.789 km SSW of Unalaska, Alaska · 1885 days ago · 26 km deep · 60 km away
  17. 2.0100 km E of Nikolski, Alaska · 1883 days ago · 26 km deep · 48 km away
  18. 2.8192 km SE of Nikolski, Alaska · 1881 days ago · 10 km deep · 73 km away
  19. 2.0137 km S of Unalaska, Alaska · 1881 days ago · 9 km deep · 10 km away
  20. 1.792 km E of Nikolski, Alaska · 1881 days ago · 26 km deep · 62 km away
  21. 1.582 km SSW of Unalaska, Alaska · 1880 days ago · 25 km deep · 67 km away
  22. 1.658 km SW of Unalaska, Alaska · 1880 days ago · 74 km deep · 98 km away
  23. 1.5141 km S of Unalaska, Alaska · 1879 days ago · 13 km deep · 7 km away
  24. 1.585 km ESE of Nikolski, Alaska · 1878 days ago · 26 km deep · 56 km away
  25. 3.5147 km ESE of Nikolski, Alaska · 1877 days ago · 18 km deep · 15 km away
  26. 1.786 km SSW of Unalaska, Alaska · 1875 days ago · 26 km deep · 61 km away
  27. 1.962 km E of Nikolski, Alaska · 1873 days ago · 67 km deep · 83 km away
  28. 4.086 km E of Nikolski, Alaska · 1872 days ago · 35 km deep · 57 km away
  29. 4.670 km E of Nikolski, Alaska · 1872 days ago · 43 km deep · 77 km away · felt by 1
  30. 2.6100 km SSE of Nikolski, Alaska · 1872 days ago · 35 km deep · 94 km away
  31. 1.595 km E of Nikolski, Alaska · 1871 days ago · 49 km deep · 55 km away
  32. 1.8151 km ESE of Nikolski, Alaska · 1870 days ago · 18 km deep · 11 km away
  33. 1.768 km E of Nikolski, Alaska · 1869 days ago · 30 km deep · 77 km away
  34. 2.8185 km SSE of Unalaska, Alaska · 1866 days ago · 10 km deep · 70 km away
  35. 2.756 km SE of Nikolski, Alaska · 1866 days ago · 35 km deep · 89 km away
  36. 4.251 km SE of Nikolski, Alaska · 1865 days ago · 49 km deep · 100 km away
  37. 1.757 km ESE of Nikolski, Alaska · 1865 days ago · 26 km deep · 83 km away
  38. 1.857 km ESE of Nikolski, Alaska · 1862 days ago · 37 km deep · 87 km away
  39. 4.041 km ESE of Nikolski, Alaska · 1861 days ago · 53 km deep · 100 km away
  40. 1.789 km E of Nikolski, Alaska · 1860 days ago · 25 km deep · 55 km away
  41. 1.8135 km ESE of Nikolski, Alaska · 1860 days ago · 25 km deep · 17 km away
  42. 2.0152 km ESE of Nikolski, Alaska · 1860 days ago · 15 km deep · 12 km away
  43. 2.055 km SE of Nikolski, Alaska · 1859 days ago · 19 km deep · 96 km away
  44. 1.984 km E of Nikolski, Alaska · 1859 days ago · 53 km deep · 65 km away
  45. 1.688 km SSW of Unalaska, Alaska · 1859 days ago · 24 km deep · 65 km away
  46. 2.674 km SSW of Unalaska, Alaska · 1858 days ago · 55 km deep · 73 km away
  47. 1.9140 km ESE of Nikolski, Alaska · 1858 days ago · 14 km deep · 5 km away
  48. 1.9136 km ESE of Nikolski, Alaska · 1857 days ago · 7 km deep · 8 km away
  49. 2.9103 km ESE of Nikolski, Alaska · 1856 days ago · 25 km deep · 40 km away
  50. 1.570 km SW of Unalaska, Alaska · 1856 days ago · 31 km deep · 92 km away
  51. 2.3177 km SE of Nikolski, Alaska · 1855 days ago · 26 km deep · 98 km away
  52. 2.863 km SSW of Unalaska, Alaska · 1854 days ago · 67 km deep · 88 km away
  53. 3.6127 km S of Unalaska, Alaska · 1853 days ago · 7 km deep · 20 km away
  54. 2.184 km S of Unalaska, Alaska · 1853 days ago · 26 km deep · 63 km away
  55. 1.8144 km S of Unalaska, Alaska · 1853 days ago · 26 km deep · 21 km away
  56. 1.7143 km S of Unalaska, Alaska · 1853 days ago · 21 km deep · 17 km away
  57. 1.6124 km S of Unalaska, Alaska · 1852 days ago · 2 km deep · 23 km away
  58. 2.071 km SE of Nikolski, Alaska · 1851 days ago · 25 km deep · 96 km away
  59. 1.8102 km E of Nikolski, Alaska · 1849 days ago · 25 km deep · 49 km away
  60. 2.380 km SE of Nikolski, Alaska · 1842 days ago · 25 km deep · 79 km away

The first 60 of 62.

Before

  1. 2.061 km ESE of Nikolski, Alaska · 1898 days ago · 19 km deep · 84 km away
  2. 2.249 km ESE of Nikolski, Alaska · 1899 days ago · 27 km deep · 94 km away
  3. 2.092 km SW of Unalaska, Alaska · 1902 days ago · 60 km deep · 85 km away
  4. 1.786 km S of Unalaska, Alaska · 1905 days ago · 31 km deep · 61 km away
  5. 1.847 km ESE of Nikolski, Alaska · 1906 days ago · 32 km deep · 95 km away
  6. 1.6125 km S of Unalaska, Alaska · 1906 days ago · 17 km deep · 25 km away
  7. 1.9141 km ESE of Nikolski, Alaska · 1906 days ago · 25 km deep · 16 km away
  8. 4.052 km E of Nikolski, Alaska · 1908 days ago · 45 km deep · 90 km away · felt by 1
  9. 2.181 km SSW of Unalaska, Alaska · 1909 days ago · 26 km deep · 66 km away
  10. 1.686 km SSE of Unalaska, Alaska · 1910 days ago · 17 km deep · 84 km away
  11. 1.679 km S of Unalaska, Alaska · 1910 days ago · 18 km deep · 68 km away
  12. 1.9109 km SSE of Unalaska, Alaska · 1911 days ago · 14 km deep · 96 km away
  13. 1.591 km SSW of Unalaska, Alaska · 1911 days ago · 42 km deep · 74 km away
  14. 1.876 km E of Nikolski, Alaska · 1911 days ago · 36 km deep · 72 km away
  15. 2.9126 km S of Unalaska, Alaska · 1911 days ago · 8 km deep · 24 km away
  16. 2.2126 km S of Unalaska, Alaska · 1912 days ago · 12 km deep · 22 km away
  17. 2.075 km SW of Unalaska, Alaska · 1913 days ago · 63 km deep · 91 km away
  18. 1.695 km SW of Unalaska, Alaska · 1913 days ago · 36 km deep · 83 km away
  19. 1.581 km SW of Unalaska, Alaska · 1913 days ago · 13 km deep · 93 km away
  20. 2.075 km SSW of Unalaska, Alaska · 1917 days ago · 33 km deep · 72 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219f19p6t. Read Sat, Oct 3, 2026, 3:24 AM UTC.