M3.3 earthquake 120 km SSE of Old Harbor, Alaska
A magnitude 3.3 earthquake struck 120 km SSE of Old Harbor, Alaska on Fri, Jul 18, 1986, 2:07 PM AKDT (22:07 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
- 3.3 (ml), minor
- Local time
- UTC
- 1986-07-18 22:07:05 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 56.160° N, 152.762° 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: 11 in the 60 days after this one and 4 in the 30 days before it.
After
- 5.063 km SE of Akhiok, Alaska · 14681 days ago · 33 km deep · 61 km away
- 3.681 km S of Old Harbor, Alaska · 14678 days ago · 33 km deep · 41 km away
- 3.576 km SE of Akhiok, Alaska · 14663 days ago · 33 km deep · 47 km away
- 6.595 km SSE of Akhiok, Alaska · 14627 days ago · 31 km deep · 40 km away
- 4.689 km SSE of Akhiok, Alaska · 14627 days ago · 33 km deep · 65 km away
- 3.884 km SSE of Akhiok, Alaska · 14627 days ago · 33 km deep · 52 km away
- 4.895 km SSE of Akhiok, Alaska · 14627 days ago · 33 km deep · 54 km away
- 3.481 km SSE of Old Harbor, Alaska · 14627 days ago · 33 km deep · 40 km away
- 4.0107 km SSE of Akhiok, Alaska · 14627 days ago · 33 km deep · 35 km away
- 4.580 km SSE of Akhiok, Alaska · 14626 days ago · 33 km deep · 49 km away
- 5.987 km SSE of Akhiok, Alaska · 14623 days ago · 33 km deep · 52 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002w5a. Read Wed, Sep 30, 2026, 6:07 AM UTC.