The oral history of the Haisla (First Nations people who live in Kitamaat/Kitimat) say that when they first arrived here, it was nothing but scrub brush from the high tide line to where the trees were big enough to get wood for masks.
That spot is 5.5 Kilometres inland over flat and pretty much level ground. Japan's tsunami went 10K inland.
About 1/3 of the people in Kitimat live 'down the hill' at about sea level. We live 'up the hill' atop about a 75' high alluvial fan from a retreating glacier.
With such a narrow, long, steep sided channel here, even being mid channel could be really hairy if a tsunami marches up the channel