Earthquake Basics
Causes of Earthquakes
Earthquake Safety
Effects of Earthquakes
History of Earthquakes
100

The place inside the Earth where an earthquake begins.
 

What is the focus?

100

 The natural process that involves the movement of the Earth's plates, causing earthquakes.
 

What is plate tectonics?

100

During an earthquake, going under this piece of furniture can keep you safe.
 

What is a table or desk?

100

These shakes are smaller earthquakes that happen after the main shock.
 

What are aftershocks?

100

This U.S. city was devastated by a major earthquake and fire in 1906.
 

What is San Francisco?

200

The Earth's outermost layer, which is involved in earthquakes.
 

What is the crust?

200

When two tectonic plates collide, they form this type of boundary.
 

What is a convergent boundary?

200

This emergency supply item is essential for listening to news if electricity is out.

What is a battery-powered radio?

200

The sudden drop or rise of land can create these large waves in the ocean.
 

What are tsunamis?

200

Magnitude 9.1 earthquake in this region in 2004 caused a massive tsunami.
 

What is the Indian Ocean?

300

The point on the Earth's surface directly above an earthquake's focus.
 

What is the epicenter?
 

300

 When two tectonic plates collide, they form this type of boundary.
 

What is a convergent boundary?

300

Having an emergency kit is important; this item provides light when the power is out.
 

What is a flashlight?

300

Earthquakes can often lead to fires due to breaks in these urban systems.
 

What are gas mains?

300

This country experiences the most earthquakes in Europe.
 

What is Turkey?

400

The scale commonly used to measure earthquake magnitudes.
 

What is the Richter scale?

400

Underground rocks breaking along a fault cause this to happen.
 

What is an earthquake?

400

Action to take during an earthquake involves covering your head and neck.
 

What is drop, cover, and hold on?

400

The amount of shaking felt in one area can vary due to this property of the ground.
 

What is soil type?

400

The 1985 Mexico City earthquake led to global advancements in this type of readiness.
 

What is disaster preparedness?

500

The instrument used to detect and record earthquakes.
 

What is a seismograph?

500

This term describes the fast-moving process of land moving down a slope after an earthquake.
 

What is a landslide?

500

After an earthquake, checking for this can prevent fires in a damaged home.
 

What is a gas leak?

500

Liquefaction is when solid ground temporarily behaves like this substance during an earthquake.
 

What is liquid?

500

his region in North America is known for a series of earthquakes in 1811-1812.
What is the New Madrid Seismic Zone?

What is the New Madrid Seismic Zone?