M4.0 earthquake 53 km WNW of Ninilchik, Alaska
A magnitude 4.0 earthquake struck 53 km WNW of Ninilchik, Alaska on Fri, Dec 17, 1976, 8:33 AM GMT-10 (18:33 UTC), 118 km (73 mi) below the surface.
A larger quake followed: M4.3 26 km W of Cohoe, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb), light
- Local time
- UTC
- 1976-12-17 18:33:03 UTC
- Depth
- 118.0 km (73.3 mi), intermediate-depth
- Epicenter
- 60.161° N, 152.609° 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
- 4.326 km W of Cohoe, Alaska · 18176 days ago · 89 km deep · 51 km away
- 4.263 km WNW of Nanwalek, Alaska · 18165 days ago · 119 km deep · 74 km away
- 4.244 km ENE of Pedro Bay, Alaska · 18161 days ago · 132 km deep · 49 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000kt8. Read Tue, Sep 29, 2026, 4:22 PM UTC.