M4.6 earthquake 92 km S of False Pass, Alaska
A magnitude 4.6 earthquake struck 92 km S of False Pass, Alaska on Tue, May 6, 1975, 11:34 AM GMT-10 (21:34 UTC), 49 km (30 mi) below the surface.
A larger quake followed: M5.4 87 km SSE of False Pass, 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), light
- Local time
- UTC
- 1975-05-06 21:34:29 UTC
- Depth
- 49.0 km (30.4 mi), shallow
- Epicenter
- 54.020° N, 163.434° 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
- 22
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 3 in the 30 days before it.
After
- 4.088 km SE of Akutan, Alaska · 18759 days ago · 9 km deep · 94 km away
- 5.487 km SSE of False Pass, Alaska · 18758 days ago · 9 km deep · 24 km away
- 3.9102 km ESE of Akutan, Alaska · 18749 days ago · 75 km deep · 69 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000axy. Read Wed, Sep 23, 2026, 3:30 AM UTC.