The Challenge of Natural Hazards. Key Words.
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- Created on: 28-03-18 14:21
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- The Challenge of Natural Hazards. Key Words.
- Natural Hazards.
- Hazard Risk.
- The chance that a natural hazard may take place.
- Natural Harzard.
- A natural event that threatens people or has the potential damage, destruction or death.
- Hazard Risk.
- Tectonic Hazards.
- Conservative Plate Margin.
- Two tectonic plates slide past each other.
- Constructive Plate Margin.
- Rising magma adds new material to plates that arediverging or moving apart.
- Destructive Plate Margin.
- Where two plates are converging or coming together andoceanic plate is subducted.
- Earthquake.
- A sudden or 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, months and years after the event.
- Conservative Plate Margin.
- Weather Hazards.
- Economic Impact.
- The effect of an event on the wealth of an area or community.
- EnvironmentalImpact.
- The effect of an event on the landscape and ecology of the surrounding area.
- Extreme Weather.
- This is when a weather event is significantly different from the average
- Global Atmospheric Circulation.
- The worldwide system of winds, which transports heat from tropical to polar latitudes.
- Management Strategies.
- Techniques of controlling, responding to, or dealing with an event.
- Economic Impact.
- Climate Change.
- Adaptation
- Actions taken to adjust to natural events such as climate change.
- Climate Change.
- A long-term change in the earth's climate,
- Mitigation.
- Action taken to reduce or eliminate the long-term risk to human life and property from natural hazards.
- Orbital Changes.
- Changes in the pathway of the Earth around the Sun.
- Quaternary Period.
- The period of geological time from about 2.6 million years ago to the present.
- Adaptation
- Natural Hazards.
- Monitoring.
- Recording physical changes to help forecast when and where a natural hazard might strike
- Plate Margin.
- The margin or boundary between two tectonic plates.
- Planning.
- Actions taken to enable communities to respond to, and recover from, natural disasters.
- Prediction.
- Attempts to forecast when and where a natural hazard will strike, based on current knowledge.
- Primary Effects.
- Impacts caused directly by a disaster.
- Protection.
- Actions taken before a hazard strikes to reduce its impact.
- Secondary effects
- Indirect impacts of a natural event.
- Tectonic Hazard.
- A natural hazard caused by movement of tectonic plates.
- Tectonic Plate.
- A rigid segment of the Earth’s crust which can ‘float’ across the heavier, semimolten rock below
- Volcano.
- An opening in the Earth’s crust from which lava, ash and gases erupt.
- Social Impact.
- The effect of an event on the lives of people or community
- Tropical Storm (Hurricane, Cyclone, Typhoon).
- An area of low pressure with winds moving in a spiral around the calm central point called the eye of the storm. Winds are powerful and rainfall is heavy.
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