有關地震的問題.

If located near the ocean, would want to escape to higher grounds in case there is Tsunamis.

海底激烈的地殼變化﹐造成大片水域突然上昇或下降所引起的大海浪
=> 海嘯

Because high land don't have much building, so it will not make any damage to people.

(during the earthquake, building may crush down and damage people)