Alaska earthquakes

M4.7 earthquake 70 km S of Atka, Alaska

A magnitude 4.7 earthquake struck 70 km S of Atka, Alaska on Wed, May 14, 1986, 5:58 AM HADT (14:58 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M6.5 25 km NW of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
4.7 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1986-05-14 14:58:25 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.565° N, 174.250° 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 1.7 and up: 78 in the 60 days after this one and 124 in the 30 days before it.

After

The first 60 of 78.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002u08. Read Thu, Oct 1, 2026, 11:45 PM UTC.