M4.9 earthquake 160 km SSE of Adak, Alaska
A magnitude 4.9 earthquake struck 160 km SSE of Adak, Alaska on Sun, Jul 29, 1979, 7:11 PM GMT-10 (05:11 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
- 1979-07-30 05:11:49 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 50.517° N, 175.839° 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
- 73
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 usp0001255. Read Tue, Sep 29, 2026, 11:42 AM UTC.