M3.0 earthquake 3 km WNW of Susitna, Alaska
A magnitude 3.0 earthquake struck 3 km WNW of Susitna, Alaska on Mon, Apr 7, 1975, 1:13 PM GMT-9 (22:13 UTC), 11 km (7 mi) below the surface.
A larger quake followed: M3.2 29 km WSW of Skwentna, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.0 (ml), minor
- Local time
- UTC
- 1975-04-07 22:13:46 UTC
- Depth
- 11.0 km (6.8 mi), shallow
- Epicenter
- 61.557° N, 150.570° 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: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 3.229 km WSW of Skwentna, Alaska · 18786 days ago · 33 km deep · 82 km away
- 3.528 km WNW of Willow, Alaska · 18785 days ago · 41 km deep · 28 km away
- 3.711 km WSW of Hope, Alaska · 18755 days ago · 50 km deep · 86 km away
- 3.17 km WNW of Trapper Creek, Alaska · 18742 days ago · 33 km deep · 88 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000ahd. Read Tue, Sep 22, 2026, 11:14 AM UTC.