Before
- Created by: Natasha Giroux
- Created on: 07-04-14 09:07
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- Before
- Tsunamis
- Mitigating Impact
- Japan, March 2011
- Sea walls and floodgates built
- Proved to be ineffective
- Sea walls and floodgates built
- Japan, March 2011
- Risk Assessment
- Will only occur: after a large submarine earthquake, on the coast
- 3b live on the coast worldwide
- After the earthquake, the speed, path and height of the tsunami can be predicted
- Will only occur: after a large submarine earthquake, on the coast
- Monitoring
- Japan, March 2011
- In 2007, Japan's meteorological agency launched an earthquake early warning system which could also be used to warn against tsunamis
- 2004 Tsunami, Koh Phi Phi Don Island in Thailand
- DART (Deep-ocean Assessment and Recording of Tsunamis): most effective predicting method, measures changes in sea-bed pressure
- Japan, March 2011
- Mitigating Impact
- Earthquakes
- Mitigating Impact
- Japan, March 2011
- Very tight building regulations, eg. skyscrapers have to have either base isolation or mass dampers.
- Proved to be effective: Tokyo had not collapsed buildings
- Everyone in Japan had an earthquake kit
- Very tight building regulations, eg. skyscrapers have to have either base isolation or mass dampers.
- China, May 2008
- Buildings hadn't been built according to the 1976 earthquake-building code and many were built before it
- Chile, 2010
- Very strict and advanced building regulations (better than many more developed countries, praised by the UN in 2011 with in their World Risk Index)
- Resulted in the 8.2 magnitude quake only cuaseing six deaths.
- Very strict and advanced building regulations (better than many more developed countries, praised by the UN in 2011 with in their World Risk Index)
- Japan, March 2011
- Monitoring
- In 2007, Japan's meteorological agency launched an earthquake early warning system
- Mitigating Impact
- Volcanoes
- Monitoring
- Sourfiere Hills, Montserrat
- Montserrat Volcano Observatory (MVO) set up
- Eg. a GPS network detects ground deformation, caused by the build up of magma chambers, with the accuracy of millimeters
- Hazard level management system (zoning), which divides the south of the island into five zones.
- Montserrat Volcano Observatory (MVO) set up
- Sourfiere Hills, Montserrat
- Mitigating imoact
- Lava flow from Etna, 1991-1993
- Land-use planning measures
- Hazard zoning
- Mount Merappi, 2010
- Hazard zoning, eg. forbidden zone, second danger zones which follow the canals of rivers.
- Lava flow from Etna, 1991-1993
- Monitoring
- Landslides
- Risk Assessment
- Caused by earthquakes
- Steep landscapes are vulnerable
- Areas subjected to heavy, intense rainfall are vulnerable
- Risk Assessment
- Debris Flows
- Risk Assessment
- Caused by heavy rainfall on widespread, loose landslide debris in the aftermath of a large earthquake
- Risk Assessment
- Tsunamis
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