Alaska earthquakes

M4.1 earthquake 82 km SW of Atka, Alaska

A magnitude 4.1 earthquake struck 82 km SW of Atka, Alaska on Tue, Mar 11, 1997, 3:19 AM HAST (13:19 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.7 53 km SE of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1997-03-11 13:19:28 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.703° N, 175.087° 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.

Depth from
OPERATOR_ASSIGNED

Nearby

Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 4 in the 30 days before it.

After

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0007ynn. Read Thu, Oct 1, 2026, 6:13 PM UTC.