The short answer
A Quebec man, Joël Lapointe, noticed an unusual circular depression while browsing Google Maps near the Côte-Nord region. He contacted geologists, who investigated and confirmed it is a meteorite impact crater from the Devonian period, about 390 million years ago. The crater, named 'Lac de la Lune' (Moon Lake), is roughly 8 km wide and was formed by a meteorite estimated to be 1-2 km in diameter. It is one of the oldest known impact craters in Canada.Why it’s trending
The story went viral after multiple news outlets (CTV News, Space.com, Smithsonian Magazine) reported on the discovery, highlighting the role of an amateur astronomer using Google Maps. The combination of citizen science, ancient history, and a visually striking crater captured public interest.
An amateur astronomer from Quebec, Joël Lapointe, discovered a massive circular pit while browsing Google Maps near the Côte-Nord region. After contacting scientists, the site has been confirmed as a 390-million-year-old meteorite impact crater, now named 'Lac de la Lune' (Moon Lake). The crater measures approximately 8 km in diameter and was formed during the Devonian period.
According to CTV News, the discovery was verified by geologists from the University of Quebec and the Geological Survey of Canada. The crater's age was determined through radiometric dating of rock samples. Space.com notes that the crater is one of the oldest known in Canada, though not the oldest globally. The meteorite that created it is estimated to have been 1-2 km in diameter.
The timeline of events: Lapointe spotted the anomaly in 2022, reported it to scientists in 2023, and the confirmation was published in early 2025. The crater had been previously overlooked due to its remote location and dense forest cover. Smithsonian Magazine highlights that Lapointe's discovery is a prime example of citizen science contributing to significant geological findings.
This discovery underscores the potential for new findings using satellite imagery and public participation. It also adds to the understanding of Earth's impact history. Future research may focus on the crater's geological features and its effects on the local environment.
Timeline
- Discovery on Google Maps
Joël Lapointe spots a circular depression on Google Maps near Côte-Nord, Quebec.
- Contact with Scientists
Lapointe contacts geologists from the University of Quebec to investigate the site.
- Confirmation Published
Scientists confirm the pit is a 390-million-year-old meteorite impact crater, named 'Lac de la Lune'.
Questions people ask
How was the crater discovered?
An amateur astronomer, Joël Lapointe, noticed a circular depression on Google Maps and reported it to scientists.
How old is the crater?
The crater is approximately 390 million years old, dating back to the Devonian period.
Where is the crater located?
The crater is located in the Côte-Nord region of Quebec, Canada, near the town of Magpie.

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