M4.8 earthquake 18 km NW of Ninilchik, Alaska
A magnitude 4.8 earthquake struck 18 km NW of Ninilchik, Alaska on Thu, Jun 16, 1983, 12:19 PM GMT-9 (21:19 UTC), 92 km (57 mi) below the surface.
A larger quake followed: M5.4 74 km ENE of Port Alsworth, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb), light
- Local time
- UTC
- 1983-06-16 21:19:23 UTC
- Depth
- 92.2 km (57.3 mi), intermediate-depth
- Epicenter
- 60.187° N, 151.856° 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 1.8 and up: 5 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.321 km SE of Kasilof, Alaska · 15793 days ago · 74 km deep · 50 km away
- 4.259 km WNW of Anchor Point, Alaska · 15778 days ago · 107 km deep · 63 km away
- 4.365 km WNW of Ninilchik, Alaska · 15761 days ago · 140 km deep · 51 km away
- 5.474 km ENE of Port Alsworth, Alaska · 15753 days ago · 138 km deep · 80 km away
- 4.316 km SW of Anchor Point, Alaska · 15752 days ago · 100 km deep · 57 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001w55. Read Tue, Sep 22, 2026, 5:38 AM UTC.