M3.6 earthquake 81 km S of Old Harbor, Alaska
A magnitude 3.6 earthquake struck 81 km S of Old Harbor, Alaska on Wed, Jul 23, 1986, 7:05 PM AKDT (03:05 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M6.5 95 km SSE 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
- 3.6 (ml), minor
- Local time
- UTC
- 1986-07-24 03:05:32 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 56.487° N, 153.067° 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 1.5 and up: 9 in the 60 days after this one and 3 in the 30 days before it.
After
- 3.576 km SE of Akhiok, Alaska · 14663 days ago · 33 km deep · 15 km away
- 6.595 km SSE of Akhiok, Alaska · 14628 days ago · 31 km deep · 38 km away
- 4.689 km SSE of Akhiok, Alaska · 14628 days ago · 33 km deep · 58 km away
- 3.884 km SSE of Akhiok, Alaska · 14628 days ago · 33 km deep · 42 km away
- 4.895 km SSE of Akhiok, Alaska · 14628 days ago · 33 km deep · 52 km away
- 3.481 km SSE of Old Harbor, Alaska · 14628 days ago · 33 km deep · 17 km away
- 4.0107 km SSE of Akhiok, Alaska · 14628 days ago · 33 km deep · 45 km away
- 4.580 km SSE of Akhiok, Alaska · 14627 days ago · 33 km deep · 33 km away
- 5.987 km SSE of Akhiok, Alaska · 14624 days ago · 33 km deep · 44 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002wes. Read Wed, Sep 30, 2026, 5:53 PM UTC.