M4.9 earthquake 46 km ENE of Atka, Alaska
A magnitude 4.9 earthquake struck 46 km ENE of Atka, Alaska on Mon, Oct 22, 1979, 9:07 AM GMT-10 (19:07 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1979-10-22 19:07:36 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 52.386° N, 173.598° 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
- 20
Nearby
Within 100 km, magnitude 1.9 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00013na. Read Tue, Sep 22, 2026, 9:43 PM UTC.