M4.5 earthquake 288 km WSW of Adak, Alaska
A magnitude 4.5 earthquake struck 288 km WSW of Adak, Alaska on Thu, Feb 4, 1982, 12:04 PM GMT+12 (00:04 UTC), 53 km (33 mi) below the surface.
A larger quake followed: M5.1 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb), light
- Local time
- UTC
- 1982-02-04 00:04:58 UTC
- Depth
- 53.1 km (33.0 mi), shallow
- Epicenter
- 51.304° N, 179.299° 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: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.5293 km WSW of Adak, Alaska · 16299 days ago · 33 km deep · 29 km away
- 5.1Rat Islands, Aleutian Islands, Alaska · 16298 days ago · 43 km deep · 28 km away
- 4.5Rat Islands, Aleutian Islands, Alaska · 16259 days ago · 43 km deep · 51 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001jfn. Read Tue, Sep 22, 2026, 5:40 AM UTC.