Alaska earthquakes

M4.0 earthquake 89 km SW of Adak, Alaska

A magnitude 4.0 earthquake struck 89 km SW of Adak, Alaska on Fri, Jul 12, 1996, 5:06 PM HADT (02:06 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M6.0 Andreanof Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 4.0 (mb), light
Local time: Fri, Jul 12, 1996, 5:06 PM HADT
UTC: 1996-07-13 02:06:32 UTC
Depth: 33.0 km (20.5 mi), shallow
Epicenter: 51.416° N, 177.692° 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: 34 in the 60 days after this one and 72 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0007m01 (also filed as ak9968yj0waj). Read Wed, Sep 30, 2026, 1:00 PM UTC.