Alaska earthquakes

M3.3 earthquake 200 km SSE of Atka, Alaska

A magnitude 3.3 earthquake struck 200 km SSE of Atka, Alaska on Sat, Aug 14, 2021, 10:23 PM HADT (07:23 UTC), 10 km (6 mi) below the surface.

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
3.3 (mb), minor
Local time
UTC
2021-08-15 07:23:08 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.473° N, 173.381° 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.

Location uncertainty
About 4.3 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.20
Depth from
Operator assigned
Station coverage gap
239°, poorly surrounded by stations
Stations used
29

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 30 in the 30 days before it.

After

  1. 2.0193 km S of Atka, Alaska · 1863 days ago · 10 km deep · 23 km away
  2. 2.8197 km SE of Atka, Alaska · 1861 days ago · 10 km deep · 68 km away
  3. 2.5102 km SSE of Atka, Alaska · 1860 days ago · 10 km deep · 97 km away
  4. 2.9178 km SE of Atka, Alaska · 1860 days ago · 10 km deep · 91 km away
  5. 3.0167 km SE of Atka, Alaska · 1859 days ago · 10 km deep · 98 km away
  6. 2.0163 km SE of Atka, Alaska · 1858 days ago · 20 km deep · 84 km away
  7. 2.1165 km SSE of Atka, Alaska · 1855 days ago · 11 km deep · 36 km away
  8. 2.1178 km S of Atka, Alaska · 1851 days ago · 7 km deep · 37 km away
  9. 2.7188 km S of Atka, Alaska · 1850 days ago · 10 km deep · 43 km away
  10. 2.2180 km SSE of Atka, Alaska · 1847 days ago · 22 km deep · 35 km away
  11. 1.7109 km S of Atka, Alaska · 1842 days ago · 24 km deep · 100 km away
  12. 2.9183 km SSE of Atka, Alaska · 1835 days ago · 21 km deep · 17 km away

Before

  1. 2.6211 km SSE of Atka, Alaska · 1867 days ago · 10 km deep · 45 km away
  2. 2.2187 km SE of Atka, Alaska · 1869 days ago · 3 km deep · 73 km away
  3. 2.0199 km S of Atka, Alaska · 1870 days ago · 9 km deep · 48 km away
  4. 3.0205 km SSE of Atka, Alaska · 1871 days ago · 10 km deep · 5 km away
  5. 2.7173 km SSE of Atka, Alaska · 1873 days ago · 22 km deep · 45 km away
  6. 2.9152 km SSE of Atka, Alaska · 1873 days ago · 10 km deep · 49 km away
  7. 3.0171 km SSE of Atka, Alaska · 1876 days ago · 17 km deep · 40 km away
  8. 2.3161 km SSE of Atka, Alaska · 1876 days ago · 7 km deep · 43 km away
  9. 3.0186 km SSE of Atka, Alaska · 1876 days ago · 10 km deep · 29 km away
  10. 3.1200 km SSE of Atka, Alaska · 1876 days ago · 30 km deep · 33 km away
  11. 2.2155 km SSE of Atka, Alaska · 1876 days ago · 1 km deep · 47 km away
  12. 2.2150 km SSE of Atka, Alaska · 1876 days ago · 15 km deep · 55 km away
  13. 2.3165 km SSE of Atka, Alaska · 1876 days ago · 9 km deep · 39 km away
  14. 1.7160 km SSE of Atka, Alaska · 1876 days ago · 3 km deep · 43 km away
  15. 2.7Andreanof Islands, Aleutian Islands, Alaska · 1876 days ago · 10 km deep · 41 km away
  16. 2.7187 km SSE of Atka, Alaska · 1876 days ago · 10 km deep · 41 km away
  17. 1.5189 km SSE of Atka, Alaska · 1877 days ago · 8 km deep · 42 km away
  18. 2.1165 km SSE of Atka, Alaska · 1877 days ago · 10 km deep · 40 km away
  19. 3.2132 km SE of Atka, Alaska · 1877 days ago · 10 km deep · 90 km away
  20. 2.2173 km SSE of Atka, Alaska · 1878 days ago · 11 km deep · 30 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000f4fl (also filed as ak021afjarxu). Read Thu, Sep 24, 2026, 8:39 AM UTC.