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Natural Hazards

Environmental Science Vocabulary

TermDefinition
natural disaster a particular event in which 10 or more people are killed; 100 or more people are affected; a declaration of emergency is issued, or there is a request for international assistance
subsidence sinking
magnitude intensity of a natural hazard in terms of the amount of energy released
frequency recurrence interval of a disastrous event
catastrophe disastrous situations requiring a long process to recovery from grave damages
risk analysis calculating risk to society; critical to understanding impacts
forecast certainty of event is given as the % chance of the event happening (80% chance of rain)
warning to alert public of a prediction or forecast which is hazardous
Created by: news4sandy