The coastal waves with wavelengths that Tsunamis are different. By coastal waves normally have a range of approximately 1 m, or up to 10 m, but for approximately 100 km distance range Tsunamis, or more than 100 kilometers.
Tsunamis are waves with different wavelengths. The normal waves with wavelengths of around one meter, or up to 10 meters long, but for Tsunamis or tidal range of around 100 kilometers over 100 kilometers.
With the wave Tsunamis coast waves are different. The coast has the normal wave wave around 1 meters or more than 10 meters, but for Tsunamis phase wave range approximately 100 kilometers or more 100 kilometers.