M4.0 earthquake 24 km S of Old Harbor, Alaska
A magnitude 4.0 earthquake struck 24 km S of Old Harbor, Alaska on Thu, May 31, 1973, 5:42 PM GMT-9 (02:42 UTC), 51 km (32 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb), light
- Local time
- UTC
- 1973-06-01 02:42:25 UTC
- Depth
- 51.0 km (31.7 mi), shallow
- Epicenter
- 56.980° N, 153.268° 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
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 2 in the 30 days before it.
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00001zy. Read Tue, Sep 22, 2026, 11:14 AM UTC.