Natural Hazards

Question 1

What is a natural hazard?

Answer 1

An event over which people have little control. It poses as a threat to people’s lives and their possesions.

Question 2

What are the different types of Hazards?

Answer 2

Tectonic, geomorphological, atmospherical, biological [CLIMACTIC/ WEATHER]

Question 3

What is a tectonic hazard?

Answer 3

Threats caused by the movement of tectonic plates

Question 4

Name the tectonic hazards

Answer 4

• Volcano eruptions
• Earthquakes
• Avalanches
• Tsunamis
• Land slides

Question 5

Name the weather hazards

Answer 5

• Floods
• Tropical storms
• Droughts
• Tornadoes
• Wildfires
• Blizzards

Question 6

What are the factors affecting hazard risk?

Answer 6

1) Frequency/ size of the hazard
2) Demographic (i.e age, gender)
3) Capacity to cope
4) Population growth
5) Level of urbanisation
6) Level of economic development

Question 7

What are the two types of plates?

Answer 7

Continental, oceanic

Question 8

Name the properties of oceanic and continental waves

Answer 8

Continental:

Oceanic:

Question 9

What are 3 ways the plates move + and what are the definitions of the processes?

Answer 9

Convection cells =
Slab pull =
Ridge rush =

Question 10

What is a plate margin/plate boundary?

Answer 10

The site where 2 or more tectonic plates meet

Question 11

What are the 4 plate boundaries + definitions

Answer 11

Destructive =
Constructive =
Conservative =
Collision =

Question 12

What are some reasons for living in areas at risk of tectonic hazards?

Answer 12

• People are too poor to move
• Volcanic soil can be more fertile for farming
• The level of risk may have only increased after moving there
• Hazards are unpredictable
• Tourism provides work opportunities
• Family/ traditional land or inherited - emotional
• Geothermal energy from volcanoes

Question 13

What are the factors that affect risk perception?

Answer 13

• Level of education
• Culture
• SocioEconomic
• Past experiences of hazardous events