M4.0 earthquake 59 km WNW of Ninilchik, Alaska
A magnitude 4.0 earthquake struck 59 km WNW of Ninilchik, Alaska on Sun, Oct 6, 1974, 4:37 AM GMT-9 (13:37 UTC), 98 km (61 mi) below the surface.
A larger quake followed: M4.6 56 km E of Port Alsworth, 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1974-10-06 13:37:43 UTC
- Depth
- 98.0 km (60.9 mi), intermediate-depth
- Epicenter
- 60.259° N, 152.655° 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
- 16
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 3 in the 30 days before it.
After
- 4.425 km E of Port Alsworth, Alaska · 18960 days ago · 194 km deep · 67 km away
- 4.024 km ESE of Clam Gulch, Alaska · 18955 days ago · 94 km deep · 93 km away
- 4.656 km E of Port Alsworth, Alaska · 18944 days ago · 158 km deep · 35 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000089u. Read Sun, Oct 4, 2026, 4:09 PM UTC.