Show:
Stress
Earthquakes
Earthquake Waves
Earthquake Scales
Grab Bag
100

Force applied over a certain area.

What is stress.
100

What is the point inside Earth where an earthquake begins?

focus or hypocenter

100
What are the waves that travel through the inside of the Earth?
Body Waves
100

Magnitude measures

amount of energy released.

100
Data from ____ seismic stations are needed to find an epicenter. 

What is 3

200

Type of stress found at divergent boundaries?

What is tension.

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

The shaking you experience from an earthquake

what is intensity.

200

Which seismic wave is a compression wave?

what is a p-wave

300
Stress from pushing together.

What is compression.

300

When Earth's lithosphere breaks it is called 

What is a fault.

300
What waves stretch rock sideways and cannot travel through liquids?
S Waves
300

Intensity is measured using this scale.

What is Mercalli

300

What can time difference between p and s waves tell you?

distance way from epicenter

400

Type of stress found at a transform boundary. 

What is shear.

400

Energy from earthquakes. 

What are seismic waves.

400

Which category of wave is the slowest?

Surface waves.

400

What scale is used today to measure the magnitude of an earthquake?

What is the Richter scale.

400

A line that connects points of equal value on a map.

what is an isoline.
500

When stress isn't high enough to break rock, rock can change shape. We call this

what is deform. 

500

Earthquakes that occur away from plate boundaries

What are intraplate earthquakes.

500

Which category of waves are the most destructive?

What are surface waves. 

500

On the Richter scale, there _____ X more energy released between each value. 

What is 33

500

The Mercalli scale is measures in values of 1 - ___.

what is 12