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