M3.0 earthquake 21 km ENE of Willow, Alaska
A magnitude 3.0 earthquake struck 21 km ENE of Willow, Alaska on Wed, Sep 16, 1987, 8:17 AM AKDT (16:17 UTC), 41 km (25 mi) below the surface.
A larger quake followed: M3.4 36 km N of Chickaloon, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.0 (ml), minor
- Local time
- UTC
- 1987-09-16 16:17:38 UTC
- Depth
- 40.6 km (25.2 mi), shallow
- Epicenter
- 61.812° N, 149.662° 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.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 3 in the 30 days before it.
After
- 2.923 km SE of Susitna North, Alaska · 14243 days ago · 42 km deep · 22 km away
- 2.724 km NNE of Chickaloon, Alaska · 14241 days ago · 39 km deep · 77 km away
- 3.436 km N of Chickaloon, Alaska · 14213 days ago · 37 km deep · 65 km away
- 4.94 km ESE of Wasilla, Alaska · 14203 days ago · 42 km deep · 32 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00038ey. Read Tue, Sep 22, 2026, 5:21 PM UTC.