M4.6 earthquake 38 km WNW of Willow, Alaska
A magnitude 4.6 earthquake struck 38 km WNW of Willow, Alaska on Thu, Oct 5, 1978, 8:54 PM GMT-9 (05:54 UTC), 6 km (4 mi) below the surface.
A larger quake followed: M4.7 16 km NNE of Susitna North, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (ml), light
- Local time
- UTC
- 1978-10-06 05:54:05 UTC
- Depth
- 6.0 km (3.7 mi), shallow
- Epicenter
- 61.932° N, 150.665° 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
- 17
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 5 in the 60 days after this one and 0 in the 30 days before it.
After
- 3.525 km NW of Fishhook, Alaska · 17493 days ago · 33 km deep · 57 km away
- 3.046 km ENE of Susitna North, Alaska · 17486 days ago · 33 km deep · 96 km away
- 4.535 km SSW of Trapper Creek, Alaska · 17470 days ago · 74 km deep · 13 km away
- 3.237 km NW of Willow, Alaska · 17470 days ago · 77 km deep · 10 km away
- 4.716 km NNE of Susitna North, Alaska · 17460 days ago · 74 km deep · 63 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000wvy. Read Tue, Sep 22, 2026, 8:33 PM UTC.