tropical storms and plate margins Flashcards
why are there different number of deaths in different types of countries (4)
as in a HIC the buildings are more stable, emergency services can arrive quickly, diseases are not spread, predicted = evacuation and making buildings stronger but complete opposite in LICs
prediction strategies for tropical storms
scientists use satellites, radar and aircraft to monitor storms and computers to predict where they will hit - time to evacuate
protection strategies for tropical storms
buildings made to withstand storms e.g put on stilts to lift out of floodwater or built with reinforced material - prevent wind damage
what are the 3 types of plate margins
constructive, destructive and conservative
what happens at a destructive plate margin and what occurs as they collide
where oceanic and continental plates move towards each other and as they collide, the oceanic plate is forced beneath the continental plate. this is known as subduction which results in the formation of an ocean trench
what 2 natural disasters can destructive plate margins cause and why
earthquakes and volcanoes as the oceanic is denser than continental. plate sinks into mantle then melts forming magma which builds up beneath the earth’s surface then escapes through weaknesses in the rock and rises
what happens if 2 continental plates collide
neither can sink so the land pushes upwards forming fold mountains
example of large and small scale volcanoes caused by destructive plates
Camp Flegrei in italy
Cinder cones in Mexico
what happens at constructive plate boundaries and what occurs due to this
where plates move apart from one another therefore magma rises to make a new crust which can cause earthquakes and shield volcanoes
landforms associated with constructive plate boundaries (3)
ocean ridges, rift valleys, shield volcanoes
what happens at conservative plate boundaries and what occurs
where plates slide past each other in opposite or same directions but at different speeds. as they try to move friction occurs and plates become stuck. pressure builds up as they try to move and when released = huge amounts of energy = earthquake
large scale landform caused by conservative plate boundary and example
fault line - San Andreas fault line - California USA