Tectonic hazards
volcanoes, earthquakes, tsunamis - the movement by the Earth’s crust
atmospheric hazards
tropical storms, fog, rain - changes to the state of the atmosphere
Geomorphological Hazards
flooding, draught - occurs on the Earth’s surface
Risk
the chance or [possibility of suffering - loss, injury, damage ect.
Factors that increase risk
Poverty, Population increase, Population Density
Who is Alfred Wegener
German scientist that proposed a hypothesis that is now called continental drift
What is a divergent plate boundary?
A type of plate boundary where two plates move away from each other.
What happens at a divergent plate boundary?
Crust is created.
What geological events occur at divergent plate boundaries?
Both earthquakes and volcanoes occur.
What is a convergent (destructive) plate boundary?
A type of plate boundary where two plates come together, leading to the destruction of crust.
What are the three types of convergent plate boundaries?
Ocean to ocean, ocean to continent, and continent to continent.
What geological processes occur at convergent plate boundaries?
Subduction, earthquakes, and volcanoes.
Conservative (Transform) plate boundary
2 plates move/slide alongside each other
What is ridge push?
Ridge pull is a mechanism that drives the movement of tectonic plates occurring at divergent boundaries.
What is slab pull?
Slab pull is a mechanism that drives the movement of tectonic plates occurring at convergent boundaries.
How many people were killed in the Haiti earthquake?
316,000 people were killed
How many people were made homeless by the Haiti earthquake?
1 million people were made homeless
What percentage of government buildings in Haiti were destroyed or badly damaged?
60% of government buildings were either destroyed or badly damaged
What is the magnitude of the Haiti earthquake?
7.0
Responses to Haiti earthquake
1 million shelters, NGOs/UN raised $1 billion, 70% given cash/work scheme
How many people died in Japan Earthquake?
18000
How many Homes were destroyed in the Japanese Earthquake?
1.2 million
Secondary affects of Japanese Earthquakes
10m high Tsunami
What type of plate boundary was the Japanese earthquake
Destructive
