M3.9 earthquake 23 km W of Tyonek, Alaska
A magnitude 3.9 earthquake struck 23 km W of Tyonek, Alaska on Sun, Jul 25, 1976, 4:41 PM GMT-9 (01:41 UTC), 120 km (75 mi) below the surface.
A larger quake followed: M4.1 25 km NW 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
- 3.9 (mb), minor
- Local time
- UTC
- 1976-07-26 01:41:54 UTC
- Depth
- 120.0 km (74.6 mi), intermediate-depth
- Epicenter
- 61.059° N, 151.575° 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
- 14
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 1 in the 30 days before it.
After
- 4.125 km NW of Beluga, Alaska · 18285 days ago · 82 km deep · 28 km away
- 3.211 km WNW of Point MacKenzie, Alaska · 18275 days ago · 32 km deep · 83 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000hhg. Read Tue, Sep 22, 2026, 8:51 PM UTC.