These currents begin when a geologic activity pushes sediments over the edge of a continental shelf and down the continental slope, creating an underwater landslide. A dense slurry of muds and sands speeds towards the foot of the slope, until the current slows.
The formation of these currents begins with a geological event that pushes sediment off a continental shelf and onto the continental slope, creating a landslide. This slurry of mud and sand then flows toward the bottom of the slope before slowing down.