Alaska earthquakes

M5.0 earthquake 55 km SSW of Adak, Alaska

A magnitude 5.0 earthquake struck 55 km SSW of Adak, Alaska on Sun, Jun 16, 1996, 6:01 AM HADT (15:01 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.1 126 km WSW of Adak, 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: Sun, Jun 16, 1996, 6:01 AM HADT
UTC: 1996-06-16 15:01:30 UTC
Depth: 33.0 km (20.5 mi), shallow
Epicenter: 51.388° N, 176.826° 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: Oblique reverse
Nodal plane 1: Strike 51°, dip 17°, rake 127°
Nodal plane 2: Strike 193°, dip 77°, rake 80°

How well it is located

Reviewed by a seismologist.

Depth from: OPERATOR_ASSIGNED

Nearby

Within 100 km, magnitude 2.0 and up: 56 in the 60 days after this one and 143 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 usp0007jv6 (also filed as gcmtb061696d, gcmt19960616150130, iscgem970188). Read Tue, Sep 22, 2026, 8:46 PM UTC.