Earthquakes

Question 1

Outline how earthquakes are measured using the Mercalli scale

Answer 1

• Measures damage done by Earthquakes.

Question 2

What are ‘Shock Waves’?

Answer 2

• Seismic waves generated by an earthquake that pass through the Earthquake’s crust

Question 3

What is a ‘Primary’ shock wave?

Answer 3

• A relatively weak wave that causes the surface to move forward and backward in the direction of the wave movement

Question 4

So then what is a ‘secondary’ shock wave?

Answer 4

• A wave that is stronger and comes at right

Question 5

What is the ‘focus’?

Answer 5

• The point of the Earth’s crust where the Earthquake originates

Question 6

What is the ‘Epicentre’?

Answer 6

• The point at the Earth’s surface directly above the surface