Alaska earthquakes

M5.0 earthquake 230 km WSW of Adak, Alaska

A magnitude 5.0 earthquake struck 230 km WSW of Adak, Alaska on Sat, Nov 5, 1977, 8:34 PM GMT-11 (07:34 UTC), 33 km (21 mi) below the surface.

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
5.0 (mb), moderate
Local time
UTC
1977-11-06 07:34:25 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.259° N, 179.812° 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
103

Nearby

Within 100 km, magnitude 2.0 and up: 4 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.7275 km WSW of Adak, Alaska · 17842 days ago · 68 km deep · 45 km away
  2. 4.5281 km WSW of Adak, Alaska · 17841 days ago · 64 km deep · 53 km away
  3. 3.9273 km WSW of Adak, Alaska · 17841 days ago · 60 km deep · 45 km away
  4. 5.0231 km W of Adak, Alaska · 17832 days ago · 88 km deep · 68 km away

Before

  1. 5.3149 km WSW of Adak, Alaska · 17876 days ago · 28 km deep · 86 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000rd4. Read Tue, Sep 22, 2026, 5:22 AM UTC.