Hazards Flashcards
What are natural hazards?
perceived natural and geographical events that has the potential to threaten both life and property.
What are the types of hydrological hazards?
Glacial flooding River flooding Tsunami Storm surges Liquefaction Mudflows
What are the types of tectonic hazards?
Lava flows Tephra Tsunamis Ground shaking Pyroclastics
What does the UN need to call it a disaster?
10+ people are killed
100+ people are affected
Declaration of a state of emergency by a relevant government
Request by national government for international assistance
Whats the definition of risk associated with hazardous events?
The probability of a hazard occurring and creating a loss of lives or livelihoods.
What characteristics are part of the physical profile of a hazard?
Magnitude Frequency Spatial concentration Areal extent Speed of onset
What are part of the human profile of a hazard?
Social Political Economic Environmental Technological factors
What does mitigation mean in terms of hazards?
Reduction in amount and scale of threat and damage caused by a hazardous event.
What is intergrated risk management?
Process of considering social, economic, and political factors involved in risk analysis. Determining the acceptability of risks or damage.
What is the park model?
Helps you understand how to manage hazards, learn how long the area requires for relief, rehabilitation and reconstruction.
What is the disaster response curve?
This is a pre disaster assessment, its not specific to any events
What is an ignition source for a wildfire?
What starts the fire, human intervention such as matches, physical, drought
What are the 3 stages of wildfire?
Preheating
Flaming combustion
Glowing combustion
What factors affect wildfires?
Vegetation type Characteristics of fuel Climate Recent weather Fire behaviour
Where do storm hazards occur?
Above or below the equator, 5 degrees
Needs wind speeds of 74mph to be classified
Needs sea temperatures of 27 degrees or above
