Massive Tsunami wave Japan climbing a mountain river

2011 Tohoku tsunami, just a split second capture before the guy taking the video realizes what he's looking at and yells to run. I looped the wave part in 3 times so we can have a look at it. This is the only shot I've seen of a truly massive wave. Shot near Shimo Akka Fishing Port, Noda Mura, Kunohe-gun, Iwate Prefecture. A bit back from this spot. https://www.google.co.jp/maps/@40.0557239,141.84741,3a,75y,95.68h,81.02t/data=!3m6!1e1!3m4!1slP9VOeDx9OR7pTpTsfAkXg!2e0!7i13312!8i6656?hl=en