M5.4 earthquake 115 km SSE of Ugashik, Alaska
A magnitude 5.4 earthquake struck 115 km SSE of Ugashik, Alaska on Wed, Jun 9, 1971, 12:09 PM GMT-9 (21:09 UTC), 72 km (45 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (mw), moderate
- Local time
- UTC
- 1971-06-09 21:09:51 UTC
- Depth
- 71.9 km (44.7 mi), intermediate-depth
- Epicenter
- 56.645° N, 156.363° 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
- ±0.21
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.4 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem783301. Read Tue, Sep 22, 2026, 7:25 AM UTC.