M3.7 earthquake 40 km E of Chenega, Alaska
A magnitude 3.7 earthquake struck 40 km E of Chenega, Alaska on Sat, Aug 18, 1973, 7:52 AM GMT-9 (16:52 UTC), 43 km (27 mi) below the surface.
A larger quake followed: M4.7 47 km E of Chenega, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.7 (mb), minor
- Local time
- UTC
- 1973-08-18 16:52:00 UTC
- Depth
- 43.0 km (26.7 mi), shallow
- Epicenter
- 60.041° N, 147.292° 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
- 9
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 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 usp000034a. Read Tue, Sep 22, 2026, 8:44 AM UTC.