Scientists think the Oso slide was moving 60 mph when it hit the neighborhood along Steelhead Drive.
The latest high resolution images called lidar are telling geologists that this slide is a lot bigger than first thought.
Dave Norman, the state geologist says as that as the slide crossed the valley, the evidence says it went 50 feet up the other side, just like when you drop something big into a bathtub.
by GLENN FARLEY / KING5 News
Posted on April 3, 2014 at 5:30 PM