M3.9 earthquake 57 km WNW of Ninilchik, Alaska
A magnitude 3.9 earthquake struck 57 km WNW of Ninilchik, Alaska on Fri, Jan 13, 1984, 10:33 AM AKST (19:33 UTC), 116 km (72 mi) below the surface.
A larger quake followed: M4.8 46 km ENE of Pedro Bay, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.9 (mb), minor
- Local time
- UTC
- 1984-01-13 19:33:50 UTC
- Depth
- 115.9 km (72.0 mi), intermediate-depth
- Epicenter
- 60.198° N, 152.658° 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 1.5 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.846 km ENE of Pedro Bay, Alaska · 15599 days ago · 142 km deep · 50 km away
- 4.149 km ENE of Pedro Bay, Alaska · 15592 days ago · 139 km deep · 43 km away
- 4.370 km ENE of Port Alsworth, Alaska · 15558 days ago · 140 km deep · 33 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002176. Read Tue, Sep 29, 2026, 1:30 AM UTC.