Page 3 - Microsoft PowerPoint - 12.3 TSUNAMI AND CYCLONE
P. 3
What can cause a tsunami?
Tsunamis are caused by a large displacement of water. Most
tsunamis are caused by earthquakes. An earthquake occurs when a
large area of the Earth's crust suddenly moves. When this happens
underwater, big gaps may appear on the ocean floor. When water
moves in to fill this gap, a tsunami is born.
A number of events may cause this kind of movement including
earthquakes, landslides, volcanic eruptions, glaciers breaking off,
and even meteorites.
