how high could a tsunami be to where it couldn't go any higher then that

Answer 1

The maximum height that a tsunami can reach depends on a variety of factors, including the magnitude and depth of the earthquake or underwater landslide that triggers it, the shape and slope of the coastline, and various other local conditions. Generally, a tsunami can reach heights of 30-100 feet (9-30 meters) when it comes ashore, but under certain extreme circumstances, it may surge higher. In rare cases, tsunamis have been known to reach heights exceeding 100 feet (30 meters), causing massive destruction and loss of life.