Tsunamis Flashcards
1
Q
What is a tsunami?
A
Giant sea waves generated by shallow focus underwater earthquakes, volcanic eruptions, underwater debris slides and landslides into the sea
2
Q
How is a Tsunami formed?
A
- upward movement of the seabed by and earthquake displaces a Column of water
- series o waves travel outward at heights of three feat or less
- as the wave approached shallow water it’s energy compresses in to a smaller space forcing it to gain height
3
Q
What are the characteristics of a tsunami wave?
A
Long wavelength and a low wave height in open ocean
Travel quickly at speed of over 700 km per hour
In shallow Water, there height increases rapidly
