Earthquakes

Question 1

What are earthquakes

Answer 1

Sudden tremors or vibrations in the earths crust

Question 2

How are earthquakes caused

Answer 2

When plates collide or slide past each other

Question 3

Focus

Answer 3

The place where the earthquake begins

Question 4

Shock waves

Answer 4

Waves of the earthquake that spread out in circles from the focus

Question 5

Epicentre

Answer 5

The point on the surface directly above the focus wherebthe greatest damage occurs

Question 6

Aftershocks

Answer 6

The smaller tremors that follow the earthquake

Question 7

Case study

Answer 7

Earthquake in japan

Question 8

Seismologist

Answer 8

Someone who studies earthquakes

Question 9

Richer scale

Answer 9

Where the force of the earthquake is measured
Ranges between 1 and 10
Each unit is 10 times stronger than the one before

Question 10

Damage caused by earthquakes

Answer 10

Loss of life
Buildings collapse
Damaged electricity lines or gas pipelines may cause fire

Question 11

Pangea

Answer 11

When the earth’s contenents broke apart and moved
Continental drift

Question 12

What happens when plates collide

Answer 12

Heaver plate slides under lighter (subduction)
Heavier plate melts into mantle lighter plate moves up
(Fold mountains)

Question 13

When did the japan earthquake happen

Answer 13

11 March 2011

Question 14

Measurement of the earthquake

Answer 14

8.9 on the richtar scale

Question 15

Damage by the earthquake:

Answer 15

130,000 buildings collapsed
15,000 people died
4.4 houses left w no electricity
Caused a 40m tsunami

Question 16

Short term responses

Answer 16

Tsunami warning was issued
Temporary camps were set up
countries offered emergency aid
Rescue teams search for survivors

Question 17

Long term responses

Answer 17

Electricity and water supplies restored
Roads, buildings, airports rebuilt