Factor that most people predict the force and danger of a tsunami is ?

Scientists are constantly trying to learn new ways to predict the behavior of tsunamis. Given current technology however, most tsunami data come to us after the damage has already occurred.

In a post-tsunami survey, geologists measure a number of factors. Scientists are particularly interested in the inundation and run-up features after the waves strike land. Inundation is the maximum horizontal distance penetrated inland. Run-up refers to the maximum vertical distance above sea level that the waves reached. Inundation and run-up are often determined by measuring the distance of killed vegetation, scattered debris along the land and eyewitness accounts of the incident.