M4.7 earthquake 202 km W of Adak, Alaska
A magnitude 4.7 earthquake struck 202 km W of Adak, Alaska on Sat, Aug 16, 1980, 4:06 AM GMT-10 (14:06 UTC), 85 km (53 mi) below the surface.
A larger quake followed: M5.0 114 km WSW of Adak, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb), light
- Local time
- UTC
- 1980-08-16 14:06:05 UTC
- Depth
- 85.0 km (52.8 mi), intermediate-depth
- Epicenter
- 51.803° N, 179.574° 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
- 20
Nearby
Within 100 km, magnitude 1.7 and up: 3 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00019e0. Read Tue, Sep 22, 2026, 10:57 AM UTC.