M3.5 earthquake 25 km NW of Fishhook, Alaska
A magnitude 3.5 earthquake struck 25 km NW of Fishhook, Alaska on Tue, Oct 31, 1978, 2:28 AM GMT-10 (12:28 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.5 35 km SSW of Trapper Creek, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.5 (mb), minor
- Local time
- UTC
- 1978-10-31 12:28:30 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 61.914° N, 149.571° 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
- 28
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.046 km ENE of Susitna North, Alaska · 17485 days ago · 33 km deep · 57 km away
- 4.535 km SSW of Trapper Creek, Alaska · 17469 days ago · 74 km deep · 51 km away
- 3.237 km NW of Willow, Alaska · 17468 days ago · 77 km deep · 50 km away
- 4.716 km NNE of Susitna North, Alaska · 17459 days ago · 74 km deep · 45 km away
- 3.917 km SSW of Susitna, Alaska · 17453 days ago · 73 km deep · 81 km away
- 3.041 km NNW of Glacier View, Alaska · 17432 days ago · 33 km deep · 92 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000x72. Read Mon, Sep 21, 2026, 8:18 PM UTC.