Alaska earthquakes

M2.3 earthquake 177 km SE of Nikolski, Alaska

A magnitude 2.3 earthquake struck 177 km SE of Nikolski, Alaska on Sat, Sep 4, 2021, 2:38 AM AKDT (10:38 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M2.5 107 km ESE 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
2.3 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-09-04 10:38:35 UTC
Depth
25.5 km (15.8 mi), shallow
Epicenter
51.713° N, 167.204° 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
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.380 km SE of Nikolski, Alaska · 1842 days ago · 25 km deep · 97 km away
  2. 2.191 km SE of Nikolski, Alaska · 1826 days ago · 26 km deep · 86 km away
  3. 2.5107 km ESE of Nikolski, Alaska · 1825 days ago · 23 km deep · 86 km away
  4. 1.8105 km ESE of Nikolski, Alaska · 1823 days ago · 17 km deep · 96 km away

Before

  1. 1.9140 km ESE of Nikolski, Alaska · 1858 days ago · 14 km deep · 93 km away
  2. 2.0152 km ESE of Nikolski, Alaska · 1861 days ago · 15 km deep · 92 km away
  3. 1.8135 km ESE of Nikolski, Alaska · 1861 days ago · 25 km deep · 83 km away
  4. 1.9161 km SSE of Nikolski, Alaska · 1861 days ago · 22 km deep · 41 km away
  5. 3.696 km SSE of Nikolski, Alaska · 1868 days ago · 10 km deep · 96 km away
  6. 1.8151 km ESE of Nikolski, Alaska · 1871 days ago · 18 km deep · 93 km away
  7. 2.6100 km SSE of Nikolski, Alaska · 1873 days ago · 35 km deep · 78 km away
  8. 3.5147 km ESE of Nikolski, Alaska · 1878 days ago · 18 km deep · 84 km away
  9. 2.8192 km SE of Nikolski, Alaska · 1882 days ago · 10 km deep · 52 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021bcnxa0k. Read Sat, Oct 3, 2026, 11:41 PM UTC.