Show:
Earths layers
Parts of an Earthquake
Earthquake Waves
Strength and Intensity
Earthquake Hazards
100

What part of earths atmosphere is the crust in 

The lithosphere 

100
What is the point inside Earth where an earthquake begins?
focus
100
What are the waves that travel through the inside of the Earth?
Body Waves
100
What do seismologists use to measure earthquake strength?
Richter Magnitude Scale
100
What is the measurement of how likely an area is to have damaging earthquakes called?
Earthquake Hazard
200

What mostly makes up the continental crust 

Granite 

200
What is the point on Earth's surface directly above an earthquakes starting point?
Epicenter
200
What are the fastest seismic waves that can travel through solids, liquids, and gases called?
P Waves
200
What is the measurement of the strength of an earthquake called?
magnitude
200
What does seismic activity in the area tell us about earthquakes?
the earthquake hazard level
300

What is the greatest part of the greatest part of the volume of earth 

The mantle 

300
What is the name for a break in Earth's crust where tectonic plates slide?
Fault
300
What waves stretch rock sideways and cannot travel through liquids?
S Waves
300
What is the degree to which people feel an earthquake and how much damage it causes called?
intensity
300
What part of the United States has the highest Earthquake Hazard level?
West Coast
400

What is the outer core mostly made of 

Iron 

400
What are the giant pieces of Earth's outer layer where most earthquakes occur called?
tectonic plates
400
What happens when too much stress is applied to a rock?
Elastic Rebound
400
What scale is used to measure the intensity of an earthquake?
Modified Mercalli Intensity Scale
400
What is the theory that active faults that have had few earthquakes will have strong ones in the future?
gap hypothesis
500

What is the last region of earth 

Inner core 

500
What are waves of energy that travel through earth called?
seismic waves
500
How are surface waves different from body waves?
They are most destructive
500
After an earthquake, what might cause more damage to structures?
aftershocks
500
What is the technology that helps keep water and gas lines from breaking?
flexible pipes