Global Distribution

Question 1

What is a hazard ?

Answer 1

A hazard is a potential threat to human life and property

Question 2

Types of natural hazard

Answer 2

Hydro-meteorological (Climate processes) and Geophysical (Caused by land processes)

Question 3

Where do geophysical hazards occur and what could they be ?

Answer 3

• Near plate Boundaries
• Earthquakes and volcanic activity

Question 4

Name for earthquakes that occur near middle of middle of plates?

Answer 4

Intra-plate

Question 5

How do intra plate earthquakes occur?

Answer 5

May occur if solid crust, which has weakened over time cracks under pressure

Question 6

What is a volcanic hotspot and give example

Answer 6

A localised area of the lithosphere which has unusually high temperatures due to upwelling of hot molten material from core

Exp: Ring Of Fire and Hawaii

Question 7

What is a plume ?

Answer 7

Hot rock due to magma rising

Question 8

Oceanic Fracture Zone (OFZ

Answer 8

This is a belt of activity through the oceans and along the
mid-ocean ridges through Africa, the Red Sea, the Dead Sea

Question 9

Continental Fracture Zone (CFZ)

Answer 9

This is a belt of activity along the mountain ranges from
Spain through the Alps to the Middle East and to the Himalayas.

Question 10

How are hazards impacting people and economic costs

Answer 10

• The total number of people being affected by tectonic hazards is increasing, due to
  population growth.
• Increases in development as infrastructure in more developed
  countries costs more to repair
• Insurance policies

Question 11

Factors affecting fatalities

Answer 11

• Location
• Education
• Accessibility for aid

Question 12

Direct and Indirect deaths

Answer 12

Direct = Those killed in the disaster straight away

Indirect - By looking at for example people who died of a disease that spread after disaster