Quaking Earth, Racing Waves Quiz

The passage states that the Sunda Megathrust Fault was storing energy that would result in a massive undersea earthquake. What does massive mean?

• lengthy

• heavy

• tough

• large

What did Sieh and other scientists learn after examining samples of coral?

• Coral can grow tall enough to wipe out an entire village.

• Islands on top of a continental plate were rising each year.

• Major earthquakes occurred about every 200 years.

• Some tsunamis can be up to 100 feet tall.

Why did Sieh study the growth pattern of corals near the Sunda Megathrust Fault?

• to learn when past earthquakes took place and to count the rings of coral

• to learn when past earthquakes took place and to predict future earthquakes

• to learn when past earthquakes took place and to learn how old the coral are

• to learn when past earthquakes took place and to explain that corals look like doughnuts

In which section of the text would the reader find information about the tsunamis?

• Sinking Islands

• No Ordinary Waves

• Rising Corals

• What Makes the Earth Quake?

Which answer below best states the main idea of the section "What Makes the Earth Quake"?

• The lithosphere is divided into plates which push against each other and can release stress in an earthquake

• The force makes objects move up and down in a lateral motion, and it can cause great destruction.

• The lithosphere is the crust of the Earth that we stand on and it is very thin, like the skin of an apple in thickness.

• We don't feel the plates moving because they are only drifting a few centimeters a year.

From the information presented in the section "Rising Corals" the reader can conclude that

• studying the shape of corals in the ocean can tell the scientists nothing about changes in the ocean floor.

• studying the growth pattern of Porites coral heads near the fault, scientists can pinpoint the dates of past earthquakes and maybe find a pattern that would predict future earthquakes.

• studying when earthquakes will hit and where will help predict when a volcano will erupt.

• studying where fault lines are can help scientists predict earthquakes.

According to the passage, what is the relationship between undersea earthquakes and tsunamis?

• Tsunamis cause undersea earthquakes.

• Tsunamis form as a result of undersea earthquakes.

• The size of tsunamis determines the severity of undersea earthquakes.

• The seaon will predict whether a tsunami develops after an undersea earthquake.

Why do Sieh and his colleagues recommend that people on the island use bamboo to build their homes?

• Bamboo is flexible and easy to harvest.

• Bamboo is traditionally used to build villages and this tradition should continue.

• Bamboo is an expensive material which means that it is a good quality building material.

• Bamboo is lighter than heavy concrete and will cause less damage if toppled in an earthquake.

Based on the text, what should people do to prepare for a tsunami?

• Run towards the big wave to surf

• Go to higher ground

• Go to the basement

• Try to find a boat

Which sentence summarizes the passage?

• Scientists study earthquakes and tsunamis and then they educate people about them.

• The oceanic and continental plates near the Sunda Megathrust Fault separated in 2004 causing a huge earthquake.

• Sieh warned students and teachers that an undersea earthquake near Indonesia could strike within months.

• A continental plate came up 20 feet and produced a huge tsunami that affected many surrounding countries in 2004.