Which one of the following is TRUE regarding tsunamis?
A) They occur in the open ocean, wavelengths are many miles or kilometers and wave heights are only a few feet.
B) They are started by fault- induced, horizontal shifts in the seafloor that suddenly propel great masses of water in opposite directions.
C) They travel as deep- water waves at speeds greater than surface seismic waves but slower than S waves.
D) Their wave heights decrease and wavelengths increase as they move into shallower water.
Correct Answer:
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