M3.9 earthquake 49 km SSW of Cantwell, Alaska
A magnitude 3.9 earthquake struck 49 km SSW of Cantwell, Alaska on Sun, May 15, 1977, 4:15 AM GMT-9 (13:15 UTC), 89 km (55 mi) below the surface.
A larger quake followed: M4.1 15 km E of Susitna North, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.9 (mb), minor
- Local time
- UTC
- 1977-05-15 13:15:03 UTC
- Depth
- 89.0 km (55.3 mi), intermediate-depth
- Epicenter
- 62.989° N, 149.361° 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
- 13
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 2 in the 30 days before it.
After
- 4.115 km E of Susitna North, Alaska · 18005 days ago · 60 km deep · 92 km away
- 3.70 km NE of Talkeetna, Alaska · 17973 days ago · 18 km deep · 83 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000nwe. Read Tue, Sep 22, 2026, 8:59 PM UTC.