M3.2 earthquake 6 km NW of Tyonek, Alaska
A magnitude 3.2 earthquake struck 6 km NW of Tyonek, Alaska on Sat, Aug 6, 1977, 7:28 PM GMT-9 (04:28 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.8 96 km W of Tyonek, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.2 (ML, local (Richter)), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1977-08-07 04:28:52 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 61.111° N, 151.209° 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
- Stations used
- 12
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
- 3.012 km WSW of Willow, Alaska · 17941 days ago · 42 km deep · 83 km away
- 3.710 km SW of Point Possession, Alaska · 17911 days ago · 33 km deep · 34 km away
- 4.896 km W of Tyonek, Alaska · 17911 days ago · 150 km deep · 92 km away
- 3.540 km WNW of Clam Gulch, Alaska · 17911 days ago · 100 km deep · 95 km away
- 3.828 km SW of Skwentna, Alaska · 17893 days ago · 108 km deep · 78 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000q0f. Read Thu, Oct 1, 2026, 4:27 PM UTC.