Updated
Updated · Livescience.com · Jul 16
Scientists Confirm 25-Km Uhaachatik Crater in Quebec, Dating Meteor Impact to 390 Million Years
Updated
Updated · Livescience.com · Jul 16

Scientists Confirm 25-Km Uhaachatik Crater in Quebec, Dating Meteor Impact to 390 Million Years

3 articles · Updated · Livescience.com · Jul 16

Summary

  • A 25-kilometer ring around Quebec's Lake Marsal has been confirmed as the 390-million-year-old Uhaachatik meteor impact crater after fieldwork and lab analysis.
  • October 2025 expeditions found shatter cones and impact melt rock—diagnostic evidence of an asteroid or comet strike that earlier zircon samples alone could not prove.
  • Joël Lapointe first spotted the near-perfect circular pit on Google Maps in 2024 while planning a camping trail, then alerted researchers who investigated the site.
  • Canada now counts 31 known impact craters out of roughly 200 worldwide, and Osinski said a newly confirmed crater of this 25-km size is unusually rare.

Insights

Will Quebec's ancient crater become a protected site or a new tourist destination?
Could AI find Earth's next giant crater before another human does?
How will this ancient crater discovery reshape the search for early life on Earth and Mars?