Alaska earthquakes

M3.7 earthquake 170 km SE of Halibut Cove, Alaska

A magnitude 3.7 earthquake struck 170 km SE of Halibut Cove, Alaska on Wed, Mar 14, 1973, 12:31 AM GMT-10 (10:31 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M4.4 102 km NE of Ouzinkie, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude
3.7 (mb), minor
Local time
UTC
1973-03-14 10:31:02 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
58.362° N, 149.462° 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
Stations used
9

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.4102 km NE of Ouzinkie, Alaska · 19539 days ago · 28 km deep · 94 km away

Before

  1. 5.5163 km ENE of Kodiak, Alaska · 19572 days ago · 12 km deep · 21 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00000yb. Read Tue, Sep 22, 2026, 11:17 AM UTC.