Natural Hazards Flashcards
When did the Nepal Earthquake happen?
April 2015.
When did the Chile Earthquake happen?
December 2010.
What was the Nepal’s Earthquake Magnitude?
7.8.
What was the Chile’s Earthquake Magnitude?
8.8.
What are the Earth’s 4 layers?
Inner core, Outer core, Mantle, Crust.
What are the Earths major pieces called?
Tectonic plates.
2 Types of Crust?
Oceanic Plate,
Continental Plate.
Why do tectonic plates move?
Convection Currents.
4 Ways of reducing the impact of Tectonic hazards.
Monitoring,
Prediction,
Protection,
Planning.
What are 4 things that affect hazard risk?
Population growth.
Global Climate Change.
Deforestation.
Wealth.
How many homes were destroyed in the Nepal Earthquake?
500,000.
How many homes were destroyed in the Chile Earthquake?
220,000.
How much of Nepal’s GDP income was from Tourism?
8.9%
How much road was destroyed by landslides after the Chile Earthquake?
140 km.
Three ways humans contribute to Climate change.
Agriculture.
Fossil Fuels.
Deforestation.
Three ways climate change is natural.
Orbital changes.
Solar Output.
Volcanic Activity.
What is a natural hazard?
A naturally occurring event that is a threat to a population.
What is the difference between a natural hazard and a natural event?
Natural hazards are a threat to people, whereas a natural event is not.
What are the 3 natural hazard groups?
Geological hazards
Hydrological hazards
Atmospheric hazards
Define geological hazards.
Hazards caused by processes on land.
Give 4 Geological hazard examples.
Volcanoes
Earthquakes
Mudflows
Landslides
Define Hydrological hazards.
Hazards caused by the movement of water on the land.
Give 1 Hydrological hazard example.
Flooding
Define Atmospheric hazards.
Hazards caused by the weather.
Give 3 examples of Atmospheric hazards.
Tropical storms
Tornadoes
Droughts
Define hazard risk.
The probability that a natural hazard will actually affect a population.
What are the five factors affecting hazard risk?
Urbanisation
Population growth
Wealth
Climate change
Land use
