M4.7 earthquake 74 km S of False Pass, Alaska
A magnitude 4.7 earthquake struck 74 km S of False Pass, Alaska on Sat, Apr 19, 1975, 9:17 AM GMT-10 (19:17 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
- 4.7 (mb), light
- Local time
- UTC
- 1975-04-19 19:17:52 UTC
- Depth
- 49.0 km (30.4 mi), shallow
- Epicenter
- 54.195° N, 163.191° 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
- 36
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.488 km S of False Pass, Alaska · 18776 days ago · 34 km deep · 15 km away
- 4.692 km S of False Pass, Alaska · 18773 days ago · 49 km deep · 25 km away
- 5.487 km SSE of False Pass, Alaska · 18763 days ago · 9 km deep · 13 km away
- 3.9102 km ESE of Akutan, Alaska · 18755 days ago · 75 km deep · 92 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000apr. Read Mon, Sep 28, 2026, 1:32 PM UTC.