Alaska earthquakes

M3.3 earthquake 48 km SSW of Adak, Alaska

A magnitude 3.3 earthquake struck 48 km SSW of Adak, Alaska on Wed, Dec 11, 1996, 5:08 AM HAST (15:08 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.7 117 km WSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
3.3 (mb, body-wave), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1996-12-11 15:08:41 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
51.476° N, 176.925° 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: 18 in the 60 days after this one and 9 in the 30 days before it.

After

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0007u9d. Read Thu, Oct 1, 2026, 4:27 PM UTC.