M4.7 earthquake 72 km SE of Pedro Bay, Alaska
A magnitude 4.7 earthquake struck 72 km SE of Pedro Bay, Alaska on Thu, Jun 25, 1981, 4:23 AM GMT-9 (13:23 UTC), 111 km (69 mi) below the surface.
A larger quake followed: M5.2 63 km E of Port Alsworth, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb), light
- Local time
- UTC
- 1981-06-25 13:23:26 UTC
- Depth
- 110.9 km (68.9 mi), intermediate-depth
- Epicenter
- 59.312° N, 153.242° 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.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.435 km W of Nanwalek, Alaska · 16518 days ago · 152 km deep · 42 km away
- 3.49 km NW of Nanwalek, Alaska · 16507 days ago · 28 km deep · 69 km away
- 4.521 km WSW of Nanwalek, Alaska · 16499 days ago · 84 km deep · 55 km away
- 3.185 km NNW of Aleneva, Alaska · 16493 days ago · 33 km deep · 59 km away
- 5.263 km E of Port Alsworth, Alaska · 16488 days ago · 114 km deep · 92 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001ebb. Read Tue, Sep 22, 2026, 6:27 AM UTC.