M4.5 earthquake 153 km S of False Pass, Alaska
A magnitude 4.5 earthquake struck 153 km S of False Pass, Alaska on Thu, Mar 22, 1979, 1:02 AM GMT-11 (12:02 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.7 78 km S 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
- 4.5 (mb), light
- Local time
- UTC
- 1979-03-22 12:02:24 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 53.478° N, 163.533° 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
- 12
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.0133 km SSE of False Pass, Alaska · 17332 days ago · 17 km deep · 42 km away
- 4.778 km S of False Pass, Alaska · 17328 days ago · 55 km deep · 78 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000zk9. Read Tue, Sep 22, 2026, 5:27 PM UTC.