M4.2 earthquake 52 km ESE of Old Harbor, Alaska
A magnitude 4.2 earthquake struck 52 km ESE of Old Harbor, Alaska on Sun, Jan 21, 1973, 11:59 AM GMT-10 (21:59 UTC), 79 km (49 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1973-01-21 21:59:19 UTC
- Depth
- 79.0 km (49.1 mi), intermediate-depth
- Epicenter
- 57.080° N, 152.473° 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
- 19
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 1 in the 30 days before it.
After
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000008c. Read Thu, Oct 1, 2026, 4:16 PM UTC.