Key Words - Natural Hazards

Question 1

natural hazard

Answer 1

a natural event that threatens people or has the potential to cause damage, destruction and death

Question 2

hazard risk

Answer 2

the probability or chance that a natural hazard may take place

Question 3

earthquake

Answer 3

a sudden or violent movement within the earths crust followed by a series of shocks

Question 4

tectonic plate

Answer 4

a rigid segment of the earths crust which can float across the heavier, semi-molten rock below

Question 5

volcano

Answer 5

an opening in the earths crust from which lava, ash and gases erupt

Question 6

constructive plate margin

Answer 6

a tectonic plate margin where rising magma adds new material to plates that are diverging or moving apart

Question 7

destructive plate margin

Answer 7

a tectonic plate margin where 2 plates are converging or coming together and the oceanic plate is subducted

Question 8

conservative plate margin

Answer 8

a tectonic plate margin here 2 tectonic plates slide past each other

Question 9

primary effects

Answer 9

the initial impact of a natural event on people and property, caused by it
-building collapsing following an earthquake

Question 10

secondary effects

Answer 10

the after effects that occur as indirect impacts of a natural event, sometimes on a longer timescale
-fires due to ruptured gas mains

Question 11

immediate responses

Answer 11

the reactions of people as a disaster happens and in the immediate aftermath

Question 12

long term responses

Answer 12

later reactions that occur in the weeks, months and years after an event