M5.5 earthquake 125 km WSW of Adak, Alaska
A magnitude 5.5 earthquake struck 125 km WSW of Adak, Alaska on Mon, Jun 5, 1972, 4:19 PM GMT-10 (02:19 UTC), 52 km (33 mi) below the surface.
A larger quake followed: M6.3 134 km SW of Adak, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (mw), moderate
- Local time
- UTC
- 1972-06-06 02:19:42 UTC
- Depth
- 52.4 km (32.6 mi), shallow
- Epicenter
- 51.359° N, 178.254° 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.
- Magnitude uncertainty
- ±0.27
- Depth from
- From location
Nearby
Within 100 km, magnitude 2.5 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 6.3134 km SW of Adak, Alaska · 19774 days ago · 30 km deep · 29 km away
- 5.6137 km SW of Adak, Alaska · 19774 days ago · 34 km deep · 36 km away
- 5.6119 km SW of Adak, Alaska · 19774 days ago · 48 km deep · 41 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem772242 (also filed as ushis3193). Read Tue, Sep 22, 2026, 8:56 PM UTC.