M5.7 earthquake 121 km SW of Nikolski, Alaska
A magnitude 5.7 earthquake struck 121 km SW of Nikolski, Alaska on Fri, Nov 30, 1962, 2:50 PM GMT-11 (01:50 UTC), 40 km (25 mi) below the surface.
A larger quake followed: M6.5 86 km S of Nikolski, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.7 (mw), moderate
- Local time
- UTC
- 1962-12-01 01:50:22 UTC
- Depth
- 40.0 km (24.9 mi), shallow
- Epicenter
- 52.234° N, 170.222° 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.
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
Nearby
Within 100 km, magnitude 2.5 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 iscgem875741. Read Tue, Sep 22, 2026, 4:50 PM UTC.