A fault once thought to be dormant in Canada’s Yukon Territory may still be active, according to new research led by the University of Victoria. Using satellite and drone-based lidar data, scientists found evidence of multiple large earthquakes along the Tintina fault over the past 2.6 million years. The fault appears to be building strain again, with the potential to trigger a quake above magnitude 7.5. The findings are expected to update Canada’s seismic hazard model and inform local emergency planning.