Global Hazards

Question 1

What is the earth’s structure?

Answer 1

• Crust - solid. Oceanic crust- dense, thin, younger. Continental crust- less dense, thicker, older.
• Mantle - liquid / molten
• Outer core - liquid
• Inner core - solid

Question 2

What are plate boundaries?

Answer 2

• Where the tectonic plates meet.

Question 3

What are the plate boundaries?

Answer 3

• Constructive - pull apart
• Conservative - rub together, same direction, opposite direction
• Destructive - subduction- one plate goes under the other (oceanic crust, continental crust), collision- 2 continentals meet and move up.

Question 4

Earthquake distribution

Answer 4

• Happen on plate boundaries

Question 5

What technology is there to manage hazards?

Answer 5

• Building that can move with the earthquake, strong concrete
• Can predict when they are going to happen to plan for them.
• Evacuate the area
• Gas masks
• Emergency kit

Question 6

Japan case study