Hazards Flashcards
What is a natural hazard
a perceived event that threatens both life and property
What is a natural disaster
a hazard becoming reality leading to damage and casualties
What is a geophysical hazard
driven by the Earth’s own internal energy sources
Examples of geophysical hazards
plate tectonics
volcanoes
seismic activity
What are atmospheric hazards
driven by processes at work in the atmosphere
Examples of atmospheric hazards
Droughts
Tropical storms
What are hydrological hazards
drivenby water bodies, mainly the oceans
Examples of hydrological hazards
floods, storm surges and tsunamis
What are common characteristics of hazards
- the scale and intensity of the event often requires emergency response
- there are immediate effects and long term effects of the hazard
- short warning times
- exposure to the risk of the hazard is involuntary (applies more to LICs)
- effects are distinctive e.g. earthquakes collapse buildings
Why do people live near hazards
- the events are unpredictable
- lack of alternatives to move and leave behind homes and jobs
- changing level of risk, they may have previously been safe
- cost/benefit : positives outweigh risks
- people’s perceptions on hazards (it won’t happen to us)
What are the different perception of a natural hazard from the population
Fear - they feel vulnerable to the event and can no longer face living there so move away
Adaptation - people use prediction, prevention and protection to survive the hazard
Fatalism - some communities believe it’s “gods will”