M4.7 earthquake 88 km SSE of Old Harbor, Alaska
A magnitude 4.7 earthquake struck 88 km SSE of Old Harbor, Alaska on Thu, Jun 19, 1986, 8:36 PM AKDT (04:36 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.0 63 km SE of Akhiok, 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
- 1986-06-20 04:36:29 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 56.482° N, 152.711° 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
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 2 in the 30 days before it.
After
- 4.475 km SE of Akhiok, Alaska · 14687 days ago · 33 km deep · 43 km away
- 3.3120 km SSE of Old Harbor, Alaska · 14676 days ago · 33 km deep · 36 km away
- 5.063 km SE of Akhiok, Alaska · 14673 days ago · 33 km deep · 42 km away
- 3.681 km S of Old Harbor, Alaska · 14671 days ago · 33 km deep · 22 km away
- 3.576 km SE of Akhiok, Alaska · 14655 days ago · 33 km deep · 37 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002v7q. Read Tue, Sep 22, 2026, 9:33 PM UTC.