M5.1 earthquake 120 km SW of Adak, Alaska
A magnitude 5.1 earthquake struck 120 km SW of Adak, Alaska on Wed, Nov 30, 1983, 9:20 AM HAST (19:20 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (mb), moderate
- Local time
- UTC
- 1983-11-30 19:20:49 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.041° N, 177.739° 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.
- Depth from
- OPERATOR_ASSIGNED
Nearby
Within 100 km, magnitude 2.1 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.958 km S of Adak, Alaska · 15631 days ago · 33 km deep · 75 km away
- 4.733 km WSW of Adak, Alaska · 15624 days ago · 79 km deep · 94 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002061. Read Tue, Sep 22, 2026, 9:38 AM UTC.