Alaska earthquakes

M2.4 earthquake 180 km WSW of Nikolski, Alaska

A magnitude 2.4 earthquake struck 180 km WSW of Nikolski, Alaska on Thu, Mar 11, 2021, 1:09 PM HAST (23:09 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M4.9 128 km WSW of Nikolski, Alaska. This one was a foreshock.

More in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
2.4 (ml), micro
Local time
UTC
2021-03-11 23:09:36 UTC
Depth
25.6 km (15.9 mi), shallow
Epicenter
52.332° N, 171.330° 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

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 3.8182 km ESE of Atka, Alaska · 2025 days ago · 35 km deep · 73 km away
  2. 3.1105 km WSW of Nikolski, Alaska · 2021 days ago · 137 km deep · 79 km away
  3. 2.9119 km WSW of Nikolski, Alaska · 2014 days ago · 117 km deep · 66 km away
  4. 3.6164 km SW of Nikolski, Alaska · 2012 days ago · 37 km deep · 61 km away
  5. 3.381 km WSW of Nikolski, Alaska · 2009 days ago · 8 km deep · 100 km away
  6. 3.4134 km SW of Nikolski, Alaska · 1997 days ago · 22 km deep · 70 km away
  7. 3.0160 km WSW of Nikolski, Alaska · 1991 days ago · 60 km deep · 20 km away
  8. 2.5136 km SW of Nikolski, Alaska · 1990 days ago · 35 km deep · 75 km away
  9. 2.7178 km WSW of Nikolski, Alaska · 1990 days ago · 35 km deep · 24 km away
  10. 2.5120 km E of Atka, Alaska · 1990 days ago · 102 km deep · 76 km away
  11. 2.8190 km E of Atka, Alaska · 1990 days ago · 35 km deep · 32 km away
  12. 2.9149 km E of Atka, Alaska · 1990 days ago · 35 km deep · 57 km away
  13. 3.1153 km E of Atka, Alaska · 1989 days ago · 20 km deep · 61 km away
  14. 4.9128 km WSW of Nikolski, Alaska · 1973 days ago · 54 km deep · 54 km away

Before

  1. 4.2137 km E of Atka, Alaska · 2028 days ago · 80 km deep · 59 km away
  2. 3.6136 km SW of Nikolski, Alaska · 2029 days ago · 22 km deep · 62 km away
  3. 3.3188 km SW of Nikolski, Alaska · 2030 days ago · 36 km deep · 52 km away
  4. 3.1135 km SW of Nikolski, Alaska · 2048 days ago · 35 km deep · 57 km away
  5. 3.5160 km SW of Nikolski, Alaska · 2051 days ago · 35 km deep · 82 km away
  6. 2.595 km WSW of Nikolski, Alaska · 2052 days ago · 43 km deep · 86 km away
  7. 3.6147 km E of Atka, Alaska · 2052 days ago · 34 km deep · 61 km away
  8. 3.3153 km SW of Nikolski, Alaska · 2053 days ago · 35 km deep · 48 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021385d9os. Read Tue, Sep 29, 2026, 12:26 AM UTC.