Earthquake quiz-G11

What are the layers of the earth?

• Lithosphere

• Asthenosphere

• Mesosphere

• LIQUID Outer Core

• SOLID Inner Core

What is the density of the Lithosphere?

2.8 g/cm³

What is the density of the Asthenosphere?

4.5 g/cm³

What is the density of the Mesosphere?

5.6 g/cm³

What is the density of the Outer Core?

10 g/cm³

What is the density of the Inner Core?

13 g/cm³

What are the characteristics of Primary Waves (P waves)?

• goes through solids & liquids

• faster

• horizontal

What are the characteristics of Secondary Waves (S waves)?

• goes through only solids

• slower

• vertical

Which kind of seismic wave can pass through the core of the earth?

P waves

Which kind of seismic wave cannot pass through the core of the earth?

S waves

Why is the center of the earth hot?

radioactivity (unstable nucleus emits radiation which heats up the earths core)

What are 2 examples of radioactive material that heats the earths core?

• potassium-40

• uranium-238

What does ‘wedging’ calculate?

how FAR away the earthquake happened

What does triangulation calculate?

the location of the epicentre

How do you use the Richter scale to calculate ‘Energy’

32x

How do you use the Richter scale to calculate ‘Ground Moving’

10x

What do Transverse Boundaries cause?

• earthquakes

What do Divergent Boundaries cause?

• volcanoes

• rifts

What do Convergent Boundaries cause?

• earthquakes

• volcanoes

• mountain ranges