M3.0 earthquake 44 km N of Sutton-Alpine, Alaska
A magnitude 3.0 earthquake struck 44 km N of Sutton-Alpine, Alaska on Mon, Apr 3, 1978, 6:08 AM GMT-10 (16:08 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.1 25 km ENE 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
- 3.0 (ml), minor
- Local time
- UTC
- 1978-04-03 16:08:53 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 62.181° N, 148.788° 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.
- Depth from
- OPERATOR_ASSIGNED
- Stations used
- 10
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 0 in the 30 days before it.
After
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000twx. Read Mon, Sep 21, 2026, 11:22 AM UTC.