M4.3 earthquake 11 km ESE of Susitna, Alaska
A magnitude 4.3 earthquake struck 11 km ESE of Susitna, Alaska on Thu, Jun 16, 1977, 11:26 PM GMT-9 (08:26 UTC), 74 km (46 mi) below the surface.
A larger quake followed: M4.7 12 km ENE 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
- 4.3 (mb), light
- Local time
- UTC
- 1977-06-17 08:26:28 UTC
- Depth
- 74.0 km (46.0 mi), intermediate-depth
- Epicenter
- 61.492° N, 150.319° 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.
- Stations used
- 30
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 2 in the 30 days before it.
After
- 3.18 km W of Susitna, Alaska · 17993 days ago · 52 km deep · 20 km away
- 4.712 km ENE of Beluga, Alaska · 17973 days ago · 72 km deep · 46 km away
- 3.70 km NE of Talkeetna, Alaska · 17973 days ago · 18 km deep · 94 km away
- 3.819 km NE of Point Possession, Alaska · 17959 days ago · 51 km deep · 52 km away
- 3.26 km NW of Tyonek, Alaska · 17943 days ago · 33 km deep · 64 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000pb4. Read Tue, Sep 22, 2026, 9:12 AM UTC.