Tectonic plates Flashcards
Revision
What is thought to move the plates around?
The convection currents in the earths mantle
Which part of the earth is broken down in plates?
Crust
At which type of plate boundary are fold mountains created?
Destructive
What areas are earthquakes formed in?
Areas where moving plates are temporarily stuck together
At which type of plate boundary do you only get earthquakes?
Conservative
Which pair of words correctly describes the point at which the earthquake occurs and the point on the Earth’s surface directly above where it occured?
Focus and epicentre
What is the name given to the places where the plates meet?
Plate boundaries
At which type of plate boundary is one plate pushed down into the mantle?
Destructive
What are the 2 types of natural hazard?
Geological and natural
Give 3 examples of geological hazards
Earthquake, volcanic eruption, avalanche
Give 3 examples of natural hazards
Tropical storms, hurricanes, volcanoes
What are the 4 main factors affecting hazard risk?
Urbanisation, poverty, farming, climate change
What is the definition of a natural hazard
A natural hazard is a natural event such as an earthquake, volcanic eruption, tropical storm or flood that poses risk of death, injury or damage to people and property
What are primary affects caused by?
Primary affects are caused by the ground shaking and can include deaths, injuries and damage to properties
What are secondary affects caused by?
Secondary affects are the result of primary affects such as tsunamis and homelessness
Give 3 examples of primary affects
Schools and hospitals being destroyed
People dead
Injuries
Why do people still live in areas with a high risk of tectonic hazards?
These people have more things to worry about like, food, water, housing and family
What does PPP stand for when it comes to tectonic hazards
Predict, Protect, Plan
Give 3 examples of secondary affects
Tsunamis
Homelessness
Landslides
How do we predict and earthquake?
Seismometer
Monitoring the water table
Satelitte monitoring ground deformation
How do we protect?
Design buildings and roads to withstand earthquakes.
Increase awareness
How do we plan?
Earthquake drills/simulator
Seismic maps can be made.
Prepare emergency supplies
