Explanation: Tsunami is caused by series of waves arising from Earthquakes or vulcanic eruptions taking place beneath the oceans, Tsunami can be very devastating,it has led to high losses in lives and properties.
As the ocean waves increases and moves inlands the depth of the sea also increases making the ocean tides to be of great Strength and power to cause havoc on the earth surface. Lituya Bay, Alaska,United States of America is the highest tsunami ever witnessed with a height of about 1720feets,it took place on July 9th,1958.
When tsunami reaches the shore it is accompanied by different series of high tidal surge of water.
The above explains the concept of wave shoaling. Wave shoaling is the effect that results when surface waves entering shallower water. The consequence of this shoaling effect, allows a tsunami, imperceptible at sea, to grow to be several meters or more in height
and it may come approaching the coast. When such finally reaches the coast, the tsunami is cloaked appearing as a rapidly rising or falling tide, bearing with it series of breaking waves, or even a bore.
