Alaska earthquakes

M5.0 earthquake 47 km W of Adak, Alaska

A magnitude 5.0 earthquake struck 47 km W of Adak, Alaska on Sat, Jun 29, 1996, 3:52 PM HADT (00:52 UTC), 33 km (21 mi) below the surface.

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

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 5.0 (mwc), moderate
Local time: Sat, Jun 29, 1996, 3:52 PM HADT
UTC: 1996-06-30 00:52:07 UTC
Depth: 33.0 km (20.5 mi), shallow
Epicenter: 51.854° N, 177.330° 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.

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting: Reverse (thrust)
Nodal plane 1: Strike 239°, dip 29°, rake 77°
Nodal plane 2: Strike 73°, dip 62°, rake 97°

How well it is located

Reviewed by a seismologist.

Depth from: OPERATOR_ASSIGNED

Nearby

Within 100 km, magnitude 2.0 and up: 37 in the 60 days after this one and 199 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 usp0007kft (also filed as gcmtb063096a, gcmt19960630005207, ak9968d04bm0, iscgem972750). Read Tue, Sep 29, 2026, 9:36 AM UTC.