2.1 HAZARDS, VULNERABILITY, RESILIENCE + DISASTER Flashcards
what is a disaster?
-causes significant impact on a vulnerable population
- becomes a disaster when:
10 or more people are killed
100 or more people are affected
what is a risk?
-exposure of people to a hazardous event
-probability of a hazard occurring that leads to loss of lives
what is resilience?
-ability of system to recover from events of hazard
what is cost-benefit?
-benefits of hazardous location may overweigh risk involved in staying there
what is the Russian roulette reaction?
-acceptance of risk
what is the hazard of living in myanmar?
-high natural hazard component due to potential for tsunami + earthquakes
hazard of living in japan?
-subject to range of natural hazards and is highly exposed
what is the vulnerablity of myanmar?
-moderate risk though a low score
-multiple hazard zone
vulnerability of japan?
-high compared to other wealthy nations due to ageing population but still low risk
myanmar coping capacity? (3)
-poor coping capacity
-low level of internet
-poor education
japan coping capacity? (4)
-good coping capacity
-educated elderly
-high internet
-effective government
overall risk in myanmar?
-ranked 7th out of 190
overall risk in japan?
-133rd out of 190
what does the UNISDR disaster risk and age index tell us?
-how age should be an important factor in understanding vulnerability and coping capacity
what is development? (3)
-improving society, enabling people to achieve aspirations
-provision of social services
-improving productivity
the social + econ impact of a hazard DEPENDS ON?? (5)
-level of development
-total num of people affected
-speed of economic recovery
-degree of urbanisation
-absolute vs relative impacts on a countries GDP
what is the Richter scale?
-measures height of waves produced by earthquakes
-from scale 0-9
what is the Mercelli scale?
-measures experienced impacts of earthquake
-based on physical observations
-from scale I-XII
-it’s subjective
what is the MMS (moment magnitude scale)
-modern measure used by seismologists
-describes earthquakes in terms of energy released
-from scale 0-9
What is the volcanic explosivity index (VEI) ?
-measures explosiveness of volcanic eruption
-from scale 0-8