Tidal waves approaching shore:
Debris being washed in by the tidal wave:
(The long rectangular object at the bottom of the image, around two-thirds
of the way to the right, is a big rig truck)
of the way to the right, is a big rig truck)
(A boat at the upper left is washing far inland onto farmland)
The above images are screenshots from video shown on Japan's NHK television.
Update: Here are videos: