Alaska earthquakes

M5.1 earthquake 127 km WSW of Adak, Alaska

A magnitude 5.1 earthquake struck 127 km WSW of Adak, Alaska on Sun, Aug 15, 1976, 7:11 PM GMT-10 (05:11 UTC), 65 km (40 mi) below the surface.

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The earthquake

Magnitude
5.1 (mb, body-wave), moderate
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1976-08-16 05:11:38 UTC
Depth
65.0 km (40.4 mi), shallow
Epicenter
51.497° N, 178.375° 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.

Stations used
114

Nearby

Within 100 km, magnitude 2.1 and up: 4 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.8106 km WSW of Adak, Alaska · 18309 days ago · 55 km deep · 23 km away
  2. 4.2132 km WSW of Adak, Alaska · 18304 days ago · 57 km deep · 10 km away
  3. 5.0107 km SW of Adak, Alaska · 18297 days ago · 39 km deep · 52 km away
  4. 4.4157 km WSW of Adak, Alaska · 18289 days ago · 68 km deep · 30 km away

Before

  1. 4.995 km WSW of Adak, Alaska · 18334 days ago · 58 km deep · 36 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000hv4. Read Fri, Oct 2, 2026, 1:01 PM UTC.