M3.6 earthquake 56 km S of Chenega, Alaska
A magnitude 3.6 earthquake struck 56 km S of Chenega, Alaska on Mon, Sep 4, 1978, 7:05 AM GMT-9 (16:05 UTC), 52 km (32 mi) below the surface.
A larger quake followed: M4.9 94 km S of Chenega, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.6 (mb), minor
- Local time
- UTC
- 1978-09-04 16:05:38 UTC
- Depth
- 52.0 km (32.3 mi), shallow
- Epicenter
- 59.562° N, 148.126° 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
- 26
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 1 in the 30 days before it.
After
- 3.290 km S of Lowell Point, Alaska · 17500 days ago · 33 km deep · 84 km away
- 4.994 km S of Chenega, Alaska · 17498 days ago · 19 km deep · 43 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000wcu. Read Tue, Sep 22, 2026, 9:19 AM UTC.