Alaska earthquakes

M2.4 earthquake 163 km S of Adak, Alaska

A magnitude 2.4 earthquake struck 163 km S of Adak, Alaska on Wed, Sep 15, 2021, 6:33 AM HADT (15:33 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M3.7 187 km S of Adak, 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
2021-09-15 15:33:21 UTC
Depth
23.5 km (14.6 mi), shallow
Epicenter
50.423° N, 176.272° 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
16

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 3.1164 km S of Adak, Alaska · 1837 days ago · 10 km deep · 1 km away
  2. 1.579 km S of Adak, Alaska · 1830 days ago · 26 km deep · 84 km away
  3. 3.1Andreanof Islands, Aleutian Islands, Alaska · 1828 days ago · 10 km deep · 23 km away
  4. 3.7187 km S of Adak, Alaska · 1816 days ago · 10 km deep · 26 km away
  5. 2.4177 km SSE of Adak, Alaska · 1810 days ago · 13 km deep · 72 km away
  6. 2.8188 km S of Adak, Alaska · 1796 days ago · 10 km deep · 26 km away
  7. 3.2118 km SSW of Adak, Alaska · 1795 days ago · 33 km deep · 77 km away
  8. 1.9156 km SSE of Adak, Alaska · 1792 days ago · 36 km deep · 65 km away
  9. 2.3178 km S of Adak, Alaska · 1791 days ago · 20 km deep · 63 km away
  10. 2.087 km S of Adak, Alaska · 1789 days ago · 16 km deep · 76 km away
  11. 1.768 km S of Adak, Alaska · 1783 days ago · 22 km deep · 97 km away

Before

  1. 4.5161 km S of Adak, Alaska · 1838 days ago · 10 km deep · 2 km away
  2. 2.7105 km SSE of Adak, Alaska · 1845 days ago · 10 km deep · 58 km away
  3. 1.7111 km S of Adak, Alaska · 1846 days ago · 35 km deep · 68 km away
  4. 1.570 km SSE of Adak, Alaska · 1848 days ago · 18 km deep · 97 km away
  5. 2.8182 km SE of Adak, Alaska · 1850 days ago · 29 km deep · 84 km away
  6. 1.992 km SSE of Adak, Alaska · 1850 days ago · 14 km deep · 75 km away
  7. 1.8147 km S of Adak, Alaska · 1851 days ago · 25 km deep · 17 km away
  8. 2.0183 km S of Adak, Alaska · 1854 days ago · 25 km deep · 60 km away
  9. 1.6Andreanof Islands, Aleutian Islands, Alaska · 1858 days ago · 15 km deep · 74 km away
  10. 1.9170 km SE of Adak, Alaska · 1858 days ago · 10 km deep · 85 km away
  11. 2.687 km S of Adak, Alaska · 1862 days ago · 35 km deep · 87 km away
  12. 3.4200 km SSW of Adak, Alaska · 1864 days ago · 10 km deep · 79 km away
  13. 1.7209 km S of Adak, Alaska · 1865 days ago · 21 km deep · 72 km away
  14. 1.9241 km S of Adak, Alaska · 1865 days ago · 12 km deep · 98 km away
  15. 1.572 km SSE of Adak, Alaska · 1865 days ago · 21 km deep · 93 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021buxs5s9. Read Sun, Sep 27, 2026, 1:01 PM UTC.