Hazard risk - The probability that a natural hazard may take place , Natural hazard - A natural event (EQ, volcano, tropical storm, flood) that threatens people or has the potential to cause damage, destruction and death. , Conservative plate margin - Two tectonic plates slide past each other., Destructive plate margin - Two plates converging (coming together) violen EQ and Volcaoes. , Constructive plate margin - Plate margin where rising magma adds new material to plates that are diverging (moving apart) , Earthquake - A sudden violent movement within the Earth’s crust followed by a series of shocks. , Immediate responses - The reaction of people as the disaster happens and in the immediate aftermath., Long- term responses - Later reactions that occur in the weeks and months after the event. , Monitoring - Recording physical changes, such as tremors near a volcano, to help forecast when a hazard might strike. , Plate margin - The boundary between two tectonic plates., Planning - Actions taken to help communities respond and recover from natural disasters., Prediction - Attempts to forecast when and where a natural hazard will occur., Primary effects - The initial impact of a natural event on people and property, caused directly by it eg buildings collapsing , Protection - Actions taken before a hazard strikes to reduce its impact. , Secondary effects - The after- effects that occur as indirect impacts of a natural event - sometimes on a longer time sle. , Tectonic hazard - The natural hazard caused by movement of tectonic plates., Volcano - An opening in the Earth’s crust from which lava, ash and gases erupt. , Tectonic plate - A rigid segment of the Earth’s crust which can ‘float’ across the heavier, semi- molten rock below. ,

AQA TECTONIC hazards

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