Tectonics 0.0 / 5 ? GeographyPlate tectonicsA2/A-levelEdexcel Created by: scxrlettgraceCreated on: 10-09-20 16:14 What is a tectonic hazard? natural events that have the potential to harm people or property 1 of 31 What is a disaster? the realisation of a hazard 2 of 31 What is the hazard risk equation? risk = hazard x vulnerability/capacity to cope 3 of 31 Pressure and Release Model layout? Root causes, Dynamic pressures, unsafe conditions, natural hazard 4 of 31 Example of a root cause? poor governance 5 of 31 Example of a dynamic pressure? lack of education 6 of 31 Developing tectonic hazard example Haiti 2010 7.0 magnitude HDI 0.48 200,000 deaths 7 of 31 Emerging tectonic hazard example Sichuan Province China 2008 8.0 magnitude HDI 0.73 69,000 deaths 8 of 31 Developed tectonic hazard example Japan Tohoku 2011 9.0 magnitude HDI 0.89 16,000 deaths 9 of 31 What earthquakes are the most dangerous? Subduction zone earthquakes 10 of 31 What is liquefaction? liquefying of land after earthquake shaking, causing it to sink 11 of 31 What scale measures intensity of groundshaking? Modified Mercalli Scale 12 of 31 What scale measures the total amount of energy released? Moment Magnitude Scale 13 of 31 What scale measures size of the seismic waves? Richter Scale 14 of 31 What factors increase hazard risks? population growth, ageing infrastructure and very old/young population 15 of 31 Factors of governance affecting risk? planning, environmental consideration, corruption, basic needs, preparation 16 of 31 Factors of geography affecting risk? population density, urbanisation, isolation and accessability 17 of 31 What advantages do developed countries have during a disaster? advanced insurance, government run preparations, monitoring of volcanoes, land use zoning 18 of 31 What is a mega disaster? high magnitude and high impact infrequent event 19 of 31 What are some characteristics of multiple hazard zones? tectonically active, unstable, major storm tracks, suffer from climate perturbations 20 of 31 Examples of a hydro-meteorological hazard drought, flood and storm 21 of 31 What is prediction? Knowing when and where a hazard will strike 22 of 31 What is forecasting? the percentage chance of a hazard ocurring 23 of 31 What are seismic gaps? areas that have some sort of tectonic activity overdue 24 of 31 How do they predict volcanic erruptions? magma chambers rise, seismometers record magma movement, gas spectrometers 25 of 31 Four parts of the hazard cycle? Response, Recovery, Mitigation and preparedness 26 of 31 What are the steps of modification? Modify event, Modify vulnerability, Modify loss 27 of 31 What is land use zoning? planning construction in areas which are at less risk 28 of 31 What are aseismic buildings? cross-bracing buildings and deep foundations 29 of 31 What is a tsunami defence? sea wall providing sense of security 30 of 31 What are lava diversions? Channels, barriers and watercooling 31 of 31
GEOG4- Tectonic activity and hazards [2014] pre-release series: #1- deciphering the question. 0.0 / 5
List of case studies for; Tectonic plates, Weather and climate, Development and globalisation and Conflict. 0.0 / 5
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