M3.5 earthquake 59 km SW of Cantwell, Alaska
A magnitude 3.5 earthquake struck 59 km SW of Cantwell, Alaska on Mon, Jul 30, 1973, 8:38 AM GMT-9 (17:38 UTC), 102 km (63 mi) below the surface.
A larger quake followed: M4.1 73 km ESE of Denali National Park, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.5 (mb), minor
- Local time
- UTC
- 1973-07-30 17:38:34 UTC
- Depth
- 102.0 km (63.4 mi), intermediate-depth
- Epicenter
- 63.016° N, 149.800° 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
- 14
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.173 km ESE of Denali National Park, Alaska · 19392 days ago · 130 km deep · 40 km away
- 3.647 km ENE of Chase, Alaska · 19389 days ago · 83 km deep · 52 km away
- 3.863 km NNW of Petersville, Alaska · 19353 days ago · 132 km deep · 69 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00002xf. Read Tue, Sep 22, 2026, 10:55 AM UTC.