M4.4 earthquake 256 km W of Adak, Alaska
A magnitude 4.4 earthquake struck 256 km W of Adak, Alaska on Mon, May 16, 1983, 10:02 AM GMT+12 (22:02 UTC), 163 km (101 mi) below the surface.
A larger quake followed: M4.9 294 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
- 4.4 (mb), light
- Local time
- UTC
- 1983-05-15 22:02:14 UTC
- Depth
- 162.8 km (101.2 mi), intermediate-depth
- Epicenter
- 52.039° N, 179.641° 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 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.9294 km WSW of Adak, Alaska · 15811 days ago · 46 km deep · 89 km away
- 4.9Rat Islands, Aleutian Islands, Alaska · 15791 days ago · 49 km deep · 94 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001vd2. Read Tue, Sep 22, 2026, 5:17 AM UTC.