Alaska earthquakes

M5.8 earthquake 73 km SSE of Adak, Alaska

A magnitude 5.8 earthquake struck 73 km SSE of Adak, Alaska on Tue, Jun 11, 1996, 2:00 AM HADT (11:00 UTC), 33 km (21 mi) below the surface.

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The earthquake

Magnitude
5.8 (mwc), moderate
Local time
UTC
1996-06-11 11:00:47 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.273° N, 176.182° 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 249°, dip 20°, rake 97°
Nodal plane 2
Strike 61°, dip 70°, rake 87°

How well it is located

Reviewed by a seismologist.

Depth from
OPERATOR_ASSIGNED

Nearby

Within 100 km, magnitude 2.5 and up: 85 in the 60 days after this one and 102 in the 30 days before it.

After

The first 60 of 85.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0007jk3 (also filed as gcmtb061196e, gcmt19960611110047, ak9967hr5ft1, iscgem969066). Read Tue, Sep 22, 2026, 9:39 PM UTC.