Earthquakes

Earthquakes

Objectives

•To explain how and why earthquakes happen using the Elastic Rebound Theory

•To define the words under word alert

•To cite ways on how to prepare for an earthquake

•To cite ways on how to make ones home earthquake safe

​Please rest your eyes for three minutes.

​Please rest your eyes for three minutes.

Multiple Choice

How is energy transferred from the focus underground

to the epicenter on the surface?

• By waves

• By teleporters

• By gravity

Multiple Choice

During an Earthquake, ____ rises from underground to the surface.

• Energy

• Magma

• An alien

Multiple Choice

To study Earthquakes, scientists use a tool called a ____.

• Seismograph

• Thermometer

• Barometer

• Polygraph

Multiple Choice

Earthquakes are classified based on their ____.

• Magnitude

• Temperature

• Age

• Location

Multiple Choice

Which description of Earthquakes is most accurate?

• Earthquakes are very rare, but when they happen they always cause severe damage.

• Earthquakes happen every day, but most are too small to notice.

• Earthquakes happen every day, so they are the number one cause of death in the US.

Multiple Select

Which are possible ways that Earthquakes affect humans?

(Pick 2!)

• Roads, bridges, and other infrastructure can be destroyed.

• People may lose their homes, schools, and workplaces.

• Earthquakes can fill the air with thick smoke that is hard to breathe.

• Earthquakes can poison the food supply and make it hard to find things to eat.

Multiple Select

Which of these strategies might be used to keep people safe from Earthquakes?

(Pick 2!)

• Telling people to evacuate during the days before an Earthquake

• Designing buildings that can handle the shaking of the ground.

• Designing buildings that can handle being burnt by lava.

• Limiting where buildings can be constructed and what materials can be used.

Multiple Choice

Which explanation is the most likely reason someone would argue against safer construction laws?

• Safe construction is more expensive.

• They want people to die from Earthquakes to prevent overpopulation.

• They don't believe Earthquakes are real.

Multiple Choice

What is the crust and upper area of the mantle called?

• focus

• tsunami

• epicenter

• lithosphere

Multiple Choice

What is the beginning point of an earthquake?

• focus

• epicenter

• tsunami

• lithosphere

Multiple Choice

What is a scientist who studies the movement of the earth called?

• tsunami

• magnitude

• seismologist

• focus

Multiple Choice

What are the vibrations of energy flowing from the focus?

• epicenter

• tsunami

• focus

• seismic waves

Multiple Choice

What is the point on Earth's surface directly above the focus?

• tsunami

• seismic wave

• epicenter

• focus

Multiple Choice

The strength of an earthquake's seismic waves...

• epicenter

• magnitude

• tsunami

• focus

Multiple Choice

Giant ocean waves are called?

• epicenter

• seismic wave

• focus

• tsunami

Multiple Choice

Idea that the earth's crust is made up of moving plates is...

• lithosphere

• seismologist

• theory of plate tectonics

• tsunami

Multiple Choice

Slower destructive waves that occur on the surface of the earth are what type of earthquake waves?

• love wave

• surface waves

• P wave

• body waves

Multiple Choice

Fast-moving waves that occur beneath the surface of the earth are what type of earthquake waves?

• love wave

• surface waves

• P wave

• Body waves

Multiple Choice

Moves in a straight path with a push-and-pull motion are what type of earthquake wave?

• rayleigh wave

• S wave

• P wave

• love wave

Multiple Choice

Moves back and forth in a zigzag pattern is what type of earthquake wave?

• body wave

• surface wave

• P wave

• love wave

Multiple Choice

The most destructive type of wave is a

• P-wave

• S-wave

• Surface wave

• transverse wave

Multiple Choice

What type of seismic wave travels compressionally? 

• P wave

• S wave

• Surface

• None

Multiple Choice

What is a tracing of an earthquake's motion that is created by a seismometer?

• Seismograph

• Seismogram

• Seismologist

• Elastic Rebound

Multiple Choice

An earthquake scored high on the Richter scale but low on the Mercalli scale. Why?

• It probably happened in an area with no people.

• It was a fast earthquake.

• It damaged a lot of buildings.

• It is impossible to know.

Multiple Choice

How much bigger is a magnitude 8 earthquake compared to magnitude 6 quake on the Richter Scale?

• 2 times bigger

• 20 times bigger

• 48 times bigger

• 100 times bigger

Multiple Choice

Which is the fastest type of seismic wave?

• p-waves

• s-waves

• surface waves

Multiple Choice

What is the temporary state in which loose soil and rock materials take on the property of quicksand?

• Aftershock

• Liquefaction

• Seismic Gap

• Tsunami

Multiple Choice

What is a smaller earthquake that follows a larger earthquake?

• Aftershock

• Liquefaction

• Seismic Gap

• Tsunami

Multiple Choice

The place where the earthquake is felt on the Earth's surface is called the...

• Epicenter

• Hypocenter (focus)

• Surface

• Crust

Multiple Choice

Many earthquakes happen along the borders of...

• Countries

• Tectonic Plates

• Climate Zones

• None of the above.

Multiple Choice

The focus of an earthquake is

• The point below Earth's surface where rock first breaks

• The closest seismic station

• The place where the greatest damage occurs

• A fault

Multiple Choice

What is the minimum number of seismograph stations needed to locate an earthquake epicenter?

• 2

• 3

• 4

• 5

• 6

Dropdown

The ​

Select answer

is layer of Earth's interior that is inferred to be composed of solid iron and nickel.

Dropdown

A fault is

Select answer