M4.4 earthquake 178 km S of Adak, Alaska
A magnitude 4.4 earthquake struck 178 km S of Adak, Alaska on Tue, Oct 7, 1986, 3:44 PM HADT (00:44 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.7 102 km SSE of Adak, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb), light
- Local time
- UTC
- 1986-10-08 00:44:26 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 50.276° N, 176.383° 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
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.7102 km SSE of Adak, Alaska · 14583 days ago · 33 km deep · 95 km away
- 4.7174 km SSE of Adak, Alaska · 14571 days ago · 33 km deep · 86 km away
- 4.792 km S of Adak, Alaska · 14567 days ago · 33 km deep · 87 km away
- 4.5103 km SSE of Adak, Alaska · 14558 days ago · 33 km deep · 89 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002ys7. Read Mon, Sep 28, 2026, 9:34 AM UTC.