Surprising Find Beneath Lake Tahoe - Evidence Of A Giant Ancient Tsunami

A giant underwater landslide that gouged the bottom of Lake Tahoe thousands of years ago sent a tsunami coursing across the lake and left huge ripples of rock that remain today, geologists have discovered. Three scuba divers, a robot submarine from Santa Clara University and teams from the U.S. Geological Survey and the University of Nevada in Reno combined forces to piece the story together from evidence they gathered during two years spent surveying what lies beneath the lake's storied blue waters just offshore from Tahoe City...