M4.0 earthquake Southeastern Alaska
A magnitude 4.0 earthquake struck in Southeastern Alaska on Thu, Oct 30, 1980, 5:17 PM PST (01:17 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.1 33 km SW of Covenant Life, 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
- 1980-10-31 01:17:38 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 59.082° N, 136.639° 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
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 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 usp0001akw. Read Tue, Sep 29, 2026, 12:52 PM UTC.