Alaska earthquakes

M2.4 earthquake 152 km WSW of Nikolski, Alaska

A magnitude 2.4 earthquake struck 152 km WSW of Nikolski, Alaska on Fri, Sep 3, 2021, 5:37 AM HADT (14:37 UTC), 60 km (37 mi) below the surface.

A larger quake followed: M3.3 112 km SW of Nikolski, Alaska. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.4 (ml), micro
Local time
UTC
2021-09-03 14:37:23 UTC
Depth
60.0 km (37.3 mi), shallow
Epicenter
52.382° N, 170.914° 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
18

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 22 in the 30 days before it.

After

  1. 3.3112 km SW of Nikolski, Alaska · 1845 days ago · 35 km deep · 67 km away
  2. 2.6139 km WSW of Nikolski, Alaska · 1842 days ago · 88 km deep · 29 km away
  3. 3.0140 km E of Atka, Alaska · 1842 days ago · 59 km deep · 88 km away
  4. 3.4126 km W of Nikolski, Alaska · 1839 days ago · 217 km deep · 74 km away
  5. 3.367 km SW of Nikolski, Alaska · 1836 days ago · 35 km deep · 97 km away
  6. 3.1113 km SW of Nikolski, Alaska · 1829 days ago · 35 km deep · 68 km away
  7. 3.7198 km SW of Nikolski, Alaska · 1824 days ago · 43 km deep · 73 km away
  8. 3.9191 km ESE of Atka, Alaska · 1822 days ago · 44 km deep · 76 km away
  9. 5.2185 km SW of Nikolski, Alaska · 1819 days ago · 35 km deep · 46 km away · felt by 3
  10. 4.8190 km SW of Nikolski, Alaska · 1819 days ago · 35 km deep · 51 km away
  11. 3.0191 km SW of Nikolski, Alaska · 1818 days ago · 2 km deep · 56 km away
  12. 4.5184 km WSW of Nikolski, Alaska · 1816 days ago · 46 km deep · 37 km away
  13. 3.1126 km WSW of Nikolski, Alaska · 1814 days ago · 123 km deep · 31 km away
  14. 2.8Fox Islands, Aleutian Islands, Alaska · 1813 days ago · 20 km deep · 58 km away
  15. 3.768 km SW of Nikolski, Alaska · 1804 days ago · 130 km deep · 97 km away
  16. 3.4180 km WSW of Nikolski, Alaska · 1801 days ago · 21 km deep · 34 km away
  17. 3.9Fox Islands, Aleutian Islands, Alaska · 1801 days ago · 46 km deep · 43 km away
  18. 2.9125 km SW of Nikolski, Alaska · 1794 days ago · 24 km deep · 46 km away
  19. 3.0143 km SW of Nikolski, Alaska · 1793 days ago · 17 km deep · 34 km away
  20. 2.5136 km SW of Nikolski, Alaska · 1789 days ago · 19 km deep · 59 km away

Before

  1. 3.0196 km SW of Nikolski, Alaska · 1850 days ago · 35 km deep · 52 km away
  2. 2.784 km SW of Nikolski, Alaska · 1854 days ago · 25 km deep · 91 km away
  3. 2.3127 km SW of Nikolski, Alaska · 1857 days ago · 33 km deep · 37 km away
  4. 3.268 km SW of Nikolski, Alaska · 1858 days ago · 87 km deep · 90 km away
  5. 3.1166 km SW of Nikolski, Alaska · 1860 days ago · 37 km deep · 72 km away
  6. 3.7157 km SW of Nikolski, Alaska · 1861 days ago · 25 km deep · 38 km away
  7. 3.194 km SW of Nikolski, Alaska · 1861 days ago · 10 km deep · 82 km away
  8. 2.097 km WSW of Nikolski, Alaska · 1861 days ago · 5 km deep · 56 km away
  9. 2.294 km WSW of Nikolski, Alaska · 1861 days ago · 2 km deep · 58 km away
  10. 3.8175 km SW of Nikolski, Alaska · 1862 days ago · 35 km deep · 48 km away
  11. 2.1112 km SW of Nikolski, Alaska · 1866 days ago · 33 km deep · 63 km away
  12. 2.1191 km SW of Nikolski, Alaska · 1867 days ago · 38 km deep · 49 km away
  13. 1.996 km WSW of Nikolski, Alaska · 1867 days ago · 5 km deep · 57 km away
  14. 2.093 km WSW of Nikolski, Alaska · 1867 days ago · 3 km deep · 58 km away
  15. 2.5183 km SW of Nikolski, Alaska · 1868 days ago · 37 km deep · 66 km away
  16. 1.9130 km SW of Nikolski, Alaska · 1869 days ago · 21 km deep · 50 km away
  17. 2.778 km SSW of Nikolski, Alaska · 1870 days ago · 35 km deep · 96 km away
  18. 2.956 km SW of Nikolski, Alaska · 1870 days ago · 34 km deep · 98 km away
  19. 3.0174 km E of Atka, Alaska · 1873 days ago · 35 km deep · 72 km away
  20. 3.1140 km SW of Nikolski, Alaska · 1874 days ago · 21 km deep · 45 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021bb2rf8v. Read Wed, Sep 23, 2026, 11:33 PM UTC.