Alaska earthquakes

M1.8 earthquake 63 km S of Cordova, Alaska

A magnitude 1.8 earthquake struck 63 km S of Cordova, Alaska on Wed, Aug 11, 2021, 1:26 AM AKDT (09:26 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M3.3 59 km ENE of Chenega, Alaska. This one was a foreshock.

Cordova forecastMore in Alaska

Map

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

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The earthquake

Magnitude
1.8 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-08-11 09:26:59 UTC
Depth
2.1 km (1.3 mi), shallow
Epicenter
59.977° N, 145.572° 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
35

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.5139 km SSE of Cordova, Alaska · 1879 days ago · 6 km deep · 80 km away
  2. 1.684 km ESE of Chenega, Alaska · 1870 days ago · 1 km deep · 75 km away
  3. 3.359 km ENE of Chenega, Alaska · 1863 days ago · 9 km deep · 81 km away
  4. 2.064 km ENE of Chenega, Alaska · 1846 days ago · 14 km deep · 83 km away
  5. 2.09 km NNW of Cordova, Alaska · 1840 days ago · 20 km deep · 73 km away
  6. 3.124 km NNW of Cordova, Alaska · 1837 days ago · 10 km deep · 88 km away · felt by 1
  7. 2.1Gulf of Alaska · 1827 days ago · 0 km deep · 86 km away
  8. 2.684 km SE of Chenega, Alaska · 1825 days ago · 8 km deep · 88 km away
  9. 2.179 km SE of Chenega, Alaska · 1825 days ago · 6 km deep · 86 km away
  10. 2.560 km S of Cordova, Alaska · 1822 days ago · 21 km deep · 9 km away
  11. 1.865 km E of Chenega, Alaska · 1820 days ago · 3 km deep · 71 km away

Before

  1. 1.552 km ENE of Chenega, Alaska · 1879 days ago · 27 km deep · 95 km away
  2. 1.526 km S of Tatitlek, Alaska · 1880 days ago · 15 km deep · 94 km away
  3. 1.8150 km SSE of Cordova, Alaska · 1885 days ago · 18 km deep · 89 km away
  4. 1.769 km SSW of Cordova, Alaska · 1889 days ago · 3 km deep · 44 km away
  5. 1.669 km SSW of Cordova, Alaska · 1890 days ago · 2 km deep · 44 km away
  6. 1.8101 km SSW of Cordova, Alaska · 1898 days ago · 11 km deep · 52 km away
  7. 1.863 km SSW of Cordova, Alaska · 1908 days ago · 22 km deep · 28 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021a8yczsg. Read Sat, Oct 3, 2026, 2:44 AM UTC.