Alaska earthquakes

M1.9 earthquake 65 km SE of Atka, Alaska

A magnitude 1.9 earthquake struck 65 km SE of Atka, Alaska on Tue, Aug 11, 2020, 6:33 AM HADT (15:33 UTC), 30 km (19 mi) below the surface.

A larger quake followed: M5.3 76 km SW of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.9 (ml), micro
Local time
UTC
2020-08-11 15:33:42 UTC
Depth
30.2 km (18.8 mi), shallow
Epicenter
51.804° N, 173.488° 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
20

Nearby

Within 100 km, magnitude 1.5 and up: 82 in the 60 days after this one and 58 in the 30 days before it.

After

The first 60 of 82.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020aapiemg. Read Tue, Sep 29, 2026, 8:04 AM UTC.