hazardous earth 5

Question 1

why are we more at risk from earthquakes?

Answer 1

• more built environment with urban areas
• mroe densely populated areas so more people at risk in smaller areas.
• lack of earthquake prediction that gives early qarning and is accurate
• global warming: glaciers melting relieve pressure on plates and land so certain faults may shift, icnreased rainfall could increase lahars.

Question 2

models of earthquakes

Answer 2

1 - disaster risk equation: risk = (hazards x vulnerability) divided by the capacity to cope.

2 - Parks model:
It is an attempt to model the impact of a disaster from pre to post disaster. There are 5 stages :
1. pre disaster,
2. Hazardous Event
3. relief (Search and rescue in the days after)
4. rehabilitation (may involve outside help in weeks after)
5. reconstruction (in wks to yrs after in an attempt to return to normality.