Describe and explain the human factors that influence the impacts of earth hazards?

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Human factors affecting impacts as a result of earth hazards include population density, building quality and early warning systems. Population density acts as a factor in contributing to impacts and their severity as the number of people in an area where a hazard occurs is directly linked to injuries and deaths. For example, if an earthquake occurs in an uninhabited area such as a desert the social impacts are non-existent. Contrastingly if an earthquake occurs in a big city the likelihood of impacts such as collapsing building and death as well as secondary impacts such as disease is high. Furthermore economic impacts are more severe as industry is damaged and has to be repaired. Building quality also determines impacts as collapsing infrastructure directly affects numbers of deaths furthermore it can cause health issues and environmental decay with damage to specialist buildings such as nuclear power plants. Retrofitted buildings decrease the chance of building collapse and consequently reduce impacts. Early warning systems allow for a coordinated response to proactively reduce impacts. Early warning systems allow for prediction and thus responses such as evacuation to reduce human impacts in an area by reducing vulnerability.

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