M2.9 earthquake 27 km WSW of Point MacKenzie, Alaska
A magnitude 2.9 earthquake struck 27 km WSW of Point MacKenzie, Alaska on Wed, Apr 20, 1983, 9:13 PM GMT-10 (07:13 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.2 50 km WNW of Beluga, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.9 (ml), micro
- Local time
- UTC
- 1983-04-21 07:13:27 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 61.262° N, 150.449° 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: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.250 km WNW of Beluga, Alaska · 15857 days ago · 109 km deep · 80 km away
- 3.832 km ESE of Skwentna, Alaska · 15855 days ago · 81 km deep · 75 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001umn. Read Tue, Sep 22, 2026, 9:12 AM UTC.