M4.5 earthquake 147 km S of False Pass, Alaska
A magnitude 4.5 earthquake struck 147 km S of False Pass, Alaska on Fri, May 11, 1973, 9:23 PM GMT-10 (07:23 UTC), 30 km (19 mi) below the surface.
A larger quake followed: M6.0 96 km SSW of False Pass, 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
- 1973-05-12 07:23:49 UTC
- Depth
- 30.0 km (18.6 mi), shallow
- Epicenter
- 53.539° N, 163.686° 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
- 46
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 6.096 km SSW of False Pass, Alaska · 19474 days ago · 30 km deep · 53 km away
- 4.899 km SSW of False Pass, Alaska · 19467 days ago · 17 km deep · 60 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00001sy. Read Tue, Sep 22, 2026, 5:01 AM UTC.