M5.6 earthquake 185 km WSW of Nikolski, Alaska
A magnitude 5.6 earthquake struck 185 km WSW of Nikolski, Alaska on Tue, Jan 23, 1968, 5:06 AM GMT-11 (16:06 UTC), 42 km (26 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.6 (mw), moderate
- Local time
- UTC
- 1968-01-23 16:06:50 UTC
- Depth
- 41.9 km (26.0 mi), shallow
- Epicenter
- 52.095° N, 171.219° 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: 0 in the 60 days after this one and 3 in the 30 days before it.
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem827592. Read Tue, Sep 22, 2026, 9:39 PM UTC.