How and why have the risks from tectonic hazards changed over time? Flashcards
1
Q
who is responsible for managing risks ?
A
- govt; provide money, stability
- scientists; research + monitoring capacity
- charities, ngos
- people
2
Q
how to reduce risk?
A
- identify hazardous areas
- monitor signs of increased volcanic unrest
- develop an emergency plan
3
Q
how has hazards become easier to manage?
A
- technology eg EEW systems
- experience
- education
- preparedness eg hazard mapping
- better communication
4
Q
how have hazards been harder to manage?
A
- big events that are unexpected
- no experience, less frequency = perception of risk is low
- density + urban society
- EDCs have limited resources ( lack of money + expertise)
- countries may have other priorities
5
Q
what makes a population less vulnerable over time? seismic
A
- improving economic development
- more awareness
- more frequent = experience
- building design, earthquake proof technology
6
Q
what might not make a difference to the overcome of seismic hazard?
A
- size of the earthquake
- unable to predict
- unable to modify the event
- scale of secondary hazards eg tsunami
