M4.8 earthquake 122 km S of False Pass, Alaska
A magnitude 4.8 earthquake struck 122 km S of False Pass, Alaska on Sun, Oct 21, 1973, 12:59 AM GMT-10 (10:59 UTC), 44 km (27 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb), light
- Local time
- UTC
- 1973-10-21 10:59:53 UTC
- Depth
- 44.0 km (27.3 mi), shallow
- Epicenter
- 53.776° N, 163.051° 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
- 30
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 3 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 usp00003vw. Read Tue, Sep 22, 2026, 3:38 AM UTC.