Tsunami Hazards Flashcards
(2 cards)
1
Q
cause of tsunamis
A
Most tsunamis are generated by submarine earthquakes at subduction zones.
The sea bed is displaced vertically (up or down) - this motion displaces a large volume of water in the ocean column which then moves outwards from the point of displacement.
2
Q
characteristics
A
long wave length
short amplitude
causes a wave train near land