Characteristics of tsunami wave
Tsunami waves are much different from ordinary water. The waves can travel into the far distance. Without losing energy and destroy the coast away from the origin, thousands of kilometers away. To travel more slowly than the earthquake's seismic waves, as travel in the ground. Therefore, The waves may reach ashore after the area in which people feel earthquakes over a period of several hours. 500 to 1,0 kilometres per hour. However, When access to the shore with depths reduced. Wave will have a lower speed and high-wave formation is initiated by more than 30 meters in height.