Thanks so much for sharing that. I like how he specifically called out that the 1700 feet was the height of splashes, and the wave itself was about 100 feet tall. The other fisherman said the face was about two boat lengths (40 foot boat) so these are really good observations, and seem to lack embellishment.
Time to google search for a computer simulation of this.
http://www.redundancydept.com/lituya.html