If you didn't know what was happening, you might get the feeling that the road you're on is just rising up! You get the idea that they had some warning, what with the camera and the roadblock and all. This happened in Nara Prefecture, Japan. Redditor notbueno explains.
It’s called a translational landslide, which is a slope failure where a block of land stays mostly intact and moves downslope along a slip plane. This one (in Nara Prefecture, Japan, 2004) resulted in the partial blockage of a river and a road being destroyed along a short section.(via reddit)