M4.6 earthquake 250 km WSW of Adak, Alaska
A magnitude 4.6 earthquake struck 250 km WSW of Adak, Alaska on Wed, Jan 19, 1983, 1:50 AM GMT+12 (13:50 UTC), 74 km (46 mi) below the surface.
A larger quake followed: M4.7 165 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
- 4.6 (mb), light
- Local time
- UTC
- 1983-01-18 13:50:11 UTC
- Depth
- 73.7 km (45.8 mi), intermediate-depth
- Epicenter
- 51.312° N, 179.865° E
- 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 1.6 and up: 2 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 usp0001sc4. Read Tue, Sep 22, 2026, 6:10 AM UTC.