Alaska earthquakes

M4.9 earthquake 62 km SSW of Atka, Alaska

A magnitude 4.9 earthquake struck 62 km SSW of Atka, Alaska on Thu, Sep 3, 1998, 11:22 AM HADT (20:22 UTC), 52 km (32 mi) below the surface.

A larger quake followed: M6.1 96 km SE of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
4.9 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1998-09-03 20:22:04 UTC
Depth
51.7 km (32.1 mi), shallow
Epicenter
51.682° N, 174.578° 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.

Nearby

Within 100 km, magnitude 1.9 and up: 3 in the 60 days after this one and 2 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0008ucg. Read Fri, Oct 2, 2026, 7:54 PM UTC.