M4.6 earthquake 130 km SSE of Nikolski, Alaska
A magnitude 4.6 earthquake struck 130 km SSE of Nikolski, Alaska on Sat, Dec 22, 1973, 1:24 PM GMT-10 (23:24 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.6 65 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
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1973-12-22 23:24:20 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.905° N, 167.966° 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
- 17
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.262 km ESE of Nikolski, Alaska · 19247 days ago · 33 km deep · 84 km away
- 5.665 km S of Nikolski, Alaska · 19239 days ago · 36 km deep · 73 km away
- 4.877 km S of Nikolski, Alaska · 19239 days ago · 44 km deep · 67 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00004md. Read Mon, Oct 5, 2026, 4:32 AM UTC.