| How The Tsunami Happened ?
A tsunami is a cyclic progression of waves produced when water in a lake or sea is speedily moved with enormous intensity. The phrase tsunami belongs to the Japanese, where “tsu” signifies harbour and “nami” means wave. |
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A tsunami is produced when the sea floor suddenly distorts and vertically dislodges the superimposing water. These huge upright actions of the earth’s outer layer mostly take place at plate boundaries.
The Subduction earthquakes predominantly cause tsunamis. They mostly crop up wherever heavier oceanic plates slide beneath the continental scales.
As the shifted water group passes through the pressure of gravity to recuperate its balance, it spreads out across the ocean like currents on a pond. Tsunamis behave in a very unusual way compared to the classic surf swells. They are occurrences that shift the whole profundity of the ocean rather than just the surface, therefore they include enormous power. Also they spread at high speeds and can move huge trans-oceanic lengths with diminutive energy loss.
A tsunami can lead to destruction of thousands of kilometers from its source.
Though the overall loss of energy is little, the total energy is stretched over a larger boundary as the wave moves; therefore the force per linear meter in the wave diminishes as the opposite power of the length from the origin.
The definite elevation of a tsunami wave in open water is mostly less than one meter. The force of a tsunami travels the complete water column to the ocean floor, different from surface waves, which characteristically get down to a profundity of around 10 meters.
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How The Tsunami Happened
Many countries were affected by Tsunami in the history. Thousands and hundreds of casualties and infrastructure were affected by various tsunamis. 
