M3.6 earthquake 72 km W of Cantwell, Alaska
A magnitude 3.6 earthquake struck 72 km W of Cantwell, Alaska on Sat, Jun 23, 1973, 7:23 AM GMT-9 (16:23 UTC), 112 km (70 mi) below the surface.
A larger quake followed: M4.1 9 km SW of Healy, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.6 (mb), minor
- Local time
- UTC
- 1973-06-23 16:23:32 UTC
- Depth
- 112.0 km (69.6 mi), intermediate-depth
- Epicenter
- 63.277° N, 150.367° 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: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.19 km SW of Healy, Alaska · 19427 days ago · 120 km deep · 85 km away
- 3.559 km SW of Cantwell, Alaska · 19419 days ago · 102 km deep · 41 km away
- 4.173 km ESE of Denali National Park, Alaska · 19399 days ago · 130 km deep · 6 km away
- 3.647 km ENE of Chase, Alaska · 19396 days ago · 83 km deep · 92 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00002br. Read Tue, Sep 29, 2026, 9:44 AM UTC.