Impacts of earthquakes and volcanoes
- Created by: Sophie :)
- Created on: 05-11-12 16:47
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- Impacts
- Why are some Earthquakes more dangerous than others?
- Population Density
- Larger population density means more deaths and injuries
- Geology
- Effect is less on solid rock and greater on weak sands and clays
- Building Design
- Many deaths are because of poor building design.
- Depth of the Earthquake
- The closer the focus to the Earth's surface the greater the damage
- Wealth of the Country
- More money available the less damaging the earthquake
- Good communications, emergency supplies like water, food, medicine and shelter.
- More money available the less damaging the earthquake
- The Power of the Earthquake
- Measured with the Richter scale
- Above 6.0 often results in some damage
- Population Density
- Reducing impacts
- Defences
- Detonating explosives can disrupt lava flows
- Spraying large volumes of water can cool an advancing lava flow
- Construction of earth walls can deflect lava.
- Education
- In the USA, Federal Emergency Management Agency gives info on how to prepare for earthquakes
- Check for hazards; identify safe spaces; educate yourself
- Have disaster supplies; emergency communication plan; help community
- In Japan on Sept 1st they have Disaster Prevention Day. They practice emergency drills/evacuation as part of the back to school routine
- In the USA, Federal Emergency Management Agency gives info on how to prepare for earthquakes
- Defences
- Why are some Earthquakes more dangerous than others?
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