A tsunami is a giant wave . Of course that has nothing to do with the tide , but maybe before people understand the seismic events , would have appeared to have been caused by a freak tide .
The use of the word tsunami took when it became popular to borrow the words of Japanese. Clearly, people had observed this phenomenon in places other than Japan before borrowing words from other languages became fashionable .
A tsunami occurs as a result of the tide in an estuary. Weather is not predictable .
A rising tide , however , is both oceanographic and meteorological . This occurs when the wind direction , atmospheric pressure and tide are like the water level is well above the normal range and flooding low- laying areas .
Earth Wind increases the sea level. Low pressure increases the sea level. If both occur at a higher tide , you can go dikes , dunes and other natural barriers or man .
The word "tsunami" is derived from two Japanese words - 'tsu', meaning "port" or "harbour" and 'nami' meaning "wave" or "sea".
Tsunami (a word which is both singular and plural) are sometimes referred to as 'tidal waves'. However, this is totally incorrect as they have nothing to do with the tides of the sea.
Most normal waves in the sea are created by the wind blowing across the sea top and this is where Tsunamis differ - they are created by submarine tectonic activity or other movement under the sea such as landslides or volcanoes. Tsunamis are not caused by the tides or the wind.
Only children tend to refer to tsunami as 'tidal waves'.
A tidal wave is a regular happening, an event which takes place at given tidal reaches around the globe. The most famous one here in England is called the Severn Bore - first, a video of a regular tidal wave in China - extremely dangerous.
Tidal Wave in Chine
The Severn Bore tidal wave England