M3.1 earthquake 14 km W of Healy, Alaska
A magnitude 3.1 earthquake struck 14 km W of Healy, Alaska on Wed, Sep 30, 1987, 1:13 PM AKDT (21:13 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M3.3 22 km ENE of Healy, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.1 (ml), minor
- Local time
- UTC
- 1987-09-30 21:13:34 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 63.862° N, 149.260° 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
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 0 in the 30 days before it.
After
- 3.322 km ENE of Healy, Alaska · 14235 days ago · 33 km deep · 37 km away
- 4.347 km SSW of Cantwell, Alaska · 14214 days ago · 83 km deep · 97 km away
- 4.659 km SW of Harding-Birch Lakes, Alaska · 14214 days ago · 33 km deep · 84 km away
- 3.764 km ESE of Denali National Park, Alaska · 14185 days ago · 33 km deep · 98 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00038v7. Read Tue, Sep 22, 2026, 9:30 PM UTC.