Ancient Impact Crater & 'Eye' of Quebec in Canada | Landsat 8 Satellite | USGS
A large, round lake in Quebec, Canada, highlights the geography of an ancient impact crater. In the late Triassic Period, a 3 mile wide meteorite struck northern Pangea at over 30,000 miles per hour. The resulting crater is now 214 million years old, but the dramatic circular lake visible in 2024 Landsat imagery is a surprisingly recent feature.
It was the completion of the Daniel-Johnson Dam in 1968 that united two river systems, creating the Manicouagan Reservoir, or the Eye of Quebec. A declassified 1964 satellite image from the CIA’s Project Argon shows two crescent-shaped lakes originally outlining the impact zone. By 1972, the reservoir’s new water level had been established, as revealed by Landsat 1, with more or less the same shoreline it has today.
The Landsat program conceived of in the 1960s, has been running longer than any remote sensing program. The idea was simple: position a satellite in a nearly polar orbit fixed to the solar angle so that each daytime pass would cross the equator at roughly the same local time.
Data representing bands of the spectrum are captured and processed into grayscale recordings that can be combined to create natural looking views like this or false color views like this. Nine Landsat satellites have been launched in partnership with NASA since 1972.
The USGS EROS Center archive contains a wealth of satellite and digitized film imagery available at no cost to communities and scientists studying land change around the world:
https://www.usgs.gov/centers/eros/science/usgs-eros-archive-products-overview
Official Quebec Tourism Website:
https://www.bonjourquebec.com/en
Côte-Nord:
https://www.bonjourquebec.com/en/where-to-go/regions-of-quebec/cote-nord
Station Uapishka S.E.N.C.:
https://www.bonjourquebec.com/en/listing/accommodation/station-uapishka-s-e-n-c/0a5a
Duration: 1 minute, 22 seconds
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