M4.6 earthquake 210 km S of Fort McPherson, Canada
A magnitude 4.6 earthquake struck 210 km S of Fort McPherson, Canada on Fri, Aug 21, 1981, 10:44 AM GMT-9 (19:44 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1981-08-21 19:44:02 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 65.571° N, 135.518° W
- Region
- Canada
- 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
Nearby
Within 100 km, magnitude 1.6 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001fdj. Read Wed, Sep 30, 2026, 8:52 PM UTC.