Alaska earthquakes

M4.6 earthquake 108 km N of Adak, Alaska

A magnitude 4.6 earthquake struck 108 km N of Adak, Alaska on Tue, Jul 27, 1982, 2:34 AM GMT-10 (12:34 UTC), 228 km (142 mi) below the surface.

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The earthquake

Magnitude
4.6 (mb), light
Local time
UTC
1982-07-27 12:34:51 UTC
Depth
227.8 km (141.5 mi), intermediate-depth
Epicenter
52.840° N, 176.410° 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 1.6 and up: 0 in the 60 days after this one and 0 in the 30 days before it.

None recorded.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001npy. Read Tue, Sep 22, 2026, 2:16 PM UTC.