Hazarde Flashcards
What is a hazard
A potential to threat human life and property
What are the 3 major types of hazard
Geophysical - caused by land processes eg volcanoes - majorly tectonics
Atomospheric - eg wildfires caused by weather
Hydrological - caused by water bodies and movement eg flooding
What is perception
People have different viewpoints of how dangerous a hazard will be what risk they pose
Dependent on lifestyle, economic, cultural factors
What is prediction
Using past events in order to know when a hazard will take place
What is adaptation
Attempting to live with hazards by adjusting lifestyle choice
Mitigation
Strategies carried out to lessen severity of hazard
Management
Strategies to reduce hazards effects
Park model
Relief
Rehabilitation
Reconstruction
Park model
Relief
Rehabilitation
Reconstruction
Hazards caused by volcanoes
Lava flows
Lahars(mudflows) - caused by melting ice at high latitudes
Floods- melting ice
Tephra - why rock ejected from volcano
Toxic gassed - released during eruptions
Acid rain - cause by sulfur dioxide released into atmosphere
Pyrocoastic flows - clouds of burning hot ash and gas that collapse down volcano at high speeds
Tsunami
Cause when water is displaced from plates moving underwater, creating a large wave
Liquifactuon
When soul is saturated , vibrations of earth cause it to act like liquid . Soil becomes weak
Storm surge
Large rises in sea level - low pressure and Hugh winds
