What happens to the water depth as the Tsunami waves approach the coast ?
[amp_mcq option1=”Decreases” option2=”Increases” option3=”Increases and decreases alternatively” option4=”Neither increases nor decreases” correct=”option1″]
This question was previously asked in
UPSC CAPF – 2009
As Tsunami waves approach the coast, the water depth decreases.
Tsunami waves are long-period waves. As they move from the deep ocean into shallower coastal waters, their speed decreases due to friction with the seabed, but their height increases significantly due to the conservation of energy. This phenomenon is known as shoaling.