NATURAL HAZARDS

What is a natural hazard?
- A natural event (e.g. earthquake, volcanic eruption, tropical storm, flood) that threatens people or has the potential to cause damage, destruction and death.
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Types of natural hazard - Geological hazard
- Caused by land and tectonic processes. - E.g. volcanoes and earthquakes, landslides and avalanches.
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Types of natural hazard - Meteorological hazard
- Caused by weather and climate. - E.g. tropical storms, and other extreme weather including heatwaves and coldspells, and climate change.
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What is hazard risk?
- The probability or chance that a natural hazard may take place.
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Factors effecting hazard risk - vulnerability
- The more people in areas exposed to natural hazards, the greater the probability they will be affected by a natural hazard - higher hazard risk.
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Factors effecting hazard risk - capacity to cope
- Natural hazards have to affect human activities to count as a hazard. The better a pop. can cope with an extreme event, the lower the threat.
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Factors effecting hazard risk - nature of natural hazards
-Type:hazard risk from some hazards is greater than others (e.g. tropical storms can be predicted, but earthquakes cant).-Frequency: some natural hazards occur more often than others.-Magnitude: more severe natural hazards cause greater risk.
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Other cards in this set

Card 2

Front

Types of natural hazard - Geological hazard

Back

- Caused by land and tectonic processes. - E.g. volcanoes and earthquakes, landslides and avalanches.

Card 3

Front

Types of natural hazard - Meteorological hazard

Back

Preview of the front of card 3

Card 4

Front

What is hazard risk?

Back

Preview of the front of card 4

Card 5

Front

Factors effecting hazard risk - vulnerability

Back

Preview of the front of card 5
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