M4.3 earthquake 68 km NNE of Karluk, Alaska
A magnitude 4.3 earthquake struck 68 km NNE of Karluk, Alaska on Sat, Aug 23, 1975, 7:56 AM GMT-9 (16:56 UTC), 56 km (35 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb), light
- Local time
- UTC
- 1975-08-23 16:56:37 UTC
- Depth
- 56.0 km (34.8 mi), shallow
- Epicenter
- 58.149° N, 154.091° 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
- 17
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 1 in the 30 days before it.
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000ck3. Read Tue, Sep 22, 2026, 7:25 AM UTC.