Alaska earthquakes

M4.3 earthquake 56 km SE of Adak, Alaska

A magnitude 4.3 earthquake struck 56 km SE of Adak, Alaska on Mon, Feb 10, 1997, 9:04 PM HAST (07:04 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M4.4 60 km SE of Adak, Alaska. This one was a foreshock.

More in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1997-02-11 07:04:11 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.490° N, 176.094° 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: 7 in the 60 days after this one and 1 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 usp0007x2p. Read Thu, Oct 1, 2026, 5:12 PM UTC.