Alaska earthquakes

M5.0 earthquake 219 km WSW of Adak, Alaska

A magnitude 5.0 earthquake struck 219 km WSW of Adak, Alaska on Fri, Feb 15, 1985, 11:32 PM HAST (09:32 UTC), 55 km (34 mi) below the surface.

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The earthquake

Magnitude
5.0 (mb), moderate
Local time
UTC
1985-02-16 09:32:55 UTC
Depth
55.2 km (34.3 mi), shallow
Epicenter
51.201° N, 179.609° 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.

Nearby

Within 100 km, magnitude 2.0 and up: 3 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.8187 km WSW of Adak, Alaska · 15173 days ago · 33 km deep · 32 km away
  2. 4.9273 km WSW of Adak, Alaska · 15164 days ago · 33 km deep · 58 km away
  3. 4.9191 km WSW of Adak, Alaska · 15162 days ago · 33 km deep · 29 km away

Before

  1. 5.5229 km WSW of Adak, Alaska · 15201 days ago · 44 km deep · 10 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002byc. Read Sun, Sep 27, 2026, 11:10 AM UTC.