> the fairly recent event of 1740 foot/~550 meter tall tsunami wave This isn't exactly true. The ~550 meter height corresponds to the height up to which trees

> the fairly recent event of 1740 foot/~550 meter tall tsunami wave This isn't exactly true. The ~550 meter height corresponds to the height up to which trees were cleared. However, the tsunami was created by a massive landslide in a contained bay, which pushed the water uphill much like someone falling in a filled tub can push water up the walls.