Y7 HS HT2 Geog Flashcards
Define ‘natural hazard’
Extreme natural events to cause loss of life, property damage, or disrupt humans.
What is it when a plate goes under another?
Subduction
How many died in ‘04 S. E Asian tsunami.
227,898
Name 1
Social:
Economic:
Environmental:
Change from the 2011 japan tsunami.
Social: 450k homeless
Economic: $360b damage
Environmental: Fukushima PowerPlant destroyed
Name 2 effects of the 2010 Iceland volcano eruption
500 farmers evacuated. Flights prevented globally. Countries couldnt export goods.
How do you spell the volcano from the Iceland case study?
Eyjafjallajökull
To remember:
Ey|Jaf|Jalla|Jökull
Consequence of supervolcano. E. G
YellowStone
Large death toll. Ecosystem disruption.
What happens at destructive margin?
Oceanic and continental move toward eachother then oceanic is subducted as is lighter.
True of False. Earthquakes happen at every type of plate boundary.
True.
Describe the distribution of earthquakes and volcanoes.
Mainly on plate margins.
What is the name of the Supercontinent?
Pangaea
Name 2 tectonic hazards.
Volcanoes, Earthquakes, Tsunamis, Landslides, Avalanches.
What plate boundary caused 2010 Iceland eruption?
Constructive.
What happens at conservative boundary?
2 plates move past eachother and create friction. With this earthquakes occur.
What happens in the mantle to cause tectonics to move?
Convection currents.