EAPS 106 Quiz 7

Though it might help, why is it generally not sufficient to be a good swimmer to survive a tsunami?

Because the water generally carries large amounts of debris

What component experiences elastic rebound during a subduction zone earthquake?

The overriding plate

Generally, how big does a subduction zone earthquake have to be to generate a large tsunami?

M9

True or False: Like wind-blown waves, tsunami waves traveling through the deep ocean are not influenced by seafloor topography.

Fals

What happens to a tsunami wave as it moves from deep to shallow water?

It slows down and increases in height

When traveling through the deep Pacific Ocean, how high did the 2011 Japan tsunami reach?

Less than 1 meter

When will a wave moving toward shore typically break (crash down from its tallest height)?

When the water depth is equal to the wave height

What type of shoreline topography leads to the greatest buildup of tsunami water heights?

Natural harbors

True or False: An earthquake on the San Andreas Fault cannot cause a large tsunami.

True

True or False: Tsunami waves can travel many kilometers inland and continue to come in for 10s of minutes.

True