Earthquake Management
Earthquake Management: Prediction, Protection and Prevention.
Refers to AQA A2 Geography (Plate Tectonics and Assosiated Hazards)
- Created by: Bethany
- Created on: 23-03-14 18:08
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- Earthquake Management
- Prediction
- The Theory of Plate Tectonics enables us to identify at-risk areas
- Produce a hazard zone map to be acted on by local/ national planners
- Look at geological information and ground stability
- There are some fairly unreliable prediction methods a few hours before an earthquake occurs
- Monitoring Groundwater Levels
- Release of Radon Gas
- Unusual Animal Behaviour
- Earthquake prediction along the San Andreas Fault
- Fault can be monitored with local magnetic fields measured
- Close studies can indicate the point along a fault line when the next quake may be due, through a study of a pattern of seismic events.
- A study of the fault between 1969-89 reveled a 'seismic gap' in the area of Loma Prieta.
- An earthquake was suffered here in October 1189. This magnitude 7.1 quake killed 63.
- It was not totally unexpected, but it was not possible to predict precisely, hence why prediction methods are limited.
- An earthquake was suffered here in October 1189. This magnitude 7.1 quake killed 63.
- A study of the fault between 1969-89 reveled a 'seismic gap' in the area of Loma Prieta.
- The Theory of Plate Tectonics enables us to identify at-risk areas
- Prevention
- Thought by many to be IMPOSSIBLE
- Some have begun feasability studies to prevent plates catching when the slide (no success!)
- Protection
- Hazard Resistance Structures
- Buildings use strong materials such as reinforced concrete.
- Special founadtions to absorb earthquake energy.
- Collapsable Lower Level (Ususally a Car Park) in Japan.
- Education
- Earthquake Drills on Anniversary of Kobe Earthquake in Japan,
- Encorage family to have three days water supply, food, first aid.
- Fire Prevention
- 'Smart Meters' to cut off the gas in the event of an earthquake
- Seismic information transmitted to gas companies in Tokyo, so employees can switch of major pipelines, reducing fires.
- Emergency Services
- Computer Programs in California to state where emergancy services should be sent first.
- Specialist training/ equipment
- Land Use Planning
- Construction laws in some quake-prone countries e.g. Japan have increased in recent years. Newer buildings are stricter and more liekly to withstand earthquakes.
- Schools/ hospitals in new risk areas.
- Sufficient open space for safe areas in an earthquake.
- Hazard Resistance Structures
- Prediction
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