Subsidence Week 7.

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Presentation transcript:

Subsidence Week 7

Questions for Discussion Would you live in an area prone to subsidence? If so, where? What level of risk from subsidence is acceptable to you? (How would you know if the subsidence risk was assessed accurately?) What should be done by people and communities in areas prone to subsidence to prepare for the hazard and prevent catastrophe?

Other Questions to Consider What factors impact subsidence? The five concepts form Chapter 1

Subsidence Causes: Natural Cave Collapse Expandable soils Tectonic movement

Subsidence Causes: Human Induced Groundwater loss Mining

Impact of Mass Movements Structural damage Surface disruption

Sinkhole

Addressing Subsidence Identification & mapping Planned subsidence Insurance Potentially Undermined Areas Karst Prone Areas

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