This is more wow than a I had anticipated:
The Japanese coast guard released a video on Saturday showing the massive tsunami waves swelling in the sea off the coast of northern Japan, after the 9.0-magnitude earthquake struck offshore on March 11. The footage showed the first huge wave rising up above the prow of the coastguard ship as it sailed straight towards it. Two more waves followed. Video courtesy: JAPAN COAST GUARD
Someone offered this translation in the comments:
translation: 0:08 brace yourself guys, hold on tight. 0:13 I have no idea what will happen to you if you are not holding on something. 0:20 10 meter high, guys 0:30 wowwwwwwwwwwwww 0:38 good, we’ve just gone over it. the second wave is coming. 0:43 this is bigger than the last one. 0:50 Speed up, navigator! 0:54 both screws at 20 0:56 the forth wave two miles ahead. 1:13 now 1.6 miles ahead 1:16 keep both screws at 20
—