M4.9 earthquake 216 km WSW of Adak, Alaska
A magnitude 4.9 earthquake struck 216 km WSW of Adak, Alaska on Tue, Jan 15, 1980, 2:21 PM GMT-11 (01:21 UTC), 50 km (31 mi) below the surface.
A larger quake followed: M5.8 142 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
- 4.9 (mb), light
- Local time
- UTC
- 1980-01-16 01:21:19 UTC
- Depth
- 50.0 km (31.1 mi), shallow
- Epicenter
- 51.228° N, 179.586° 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
- 72
Nearby
Within 100 km, magnitude 1.9 and up: 2 in the 60 days after this one and 4 in the 30 days before it.
After
- 5.8142 km WSW of Adak, Alaska · 17048 days ago · 50 km deep · 77 km away
- 5.0135 km WSW of Adak, Alaska · 17018 days ago · 53 km deep · 89 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000150x. Read Tue, Sep 22, 2026, 10:44 AM UTC.