phillipines multiple hazard zone 1.10 Flashcards
(26 cards)
world risk index (2016)
ranked 3rd
of the 10 most at-risk cities from natural hazards in the world, how many are from the phillipines?
8
how much of the population is exposed to 2 or more hazards?
74%
how many major hazard events experienced between 1960s-2015?
555
what year saw the countrys most devastating recent earthquake (bohol) and typhoon (haiyan) hit within one month
2013
what plate boundary is it situated on
ring of fire
what margins joined by conservative margin
2 major destructive (convergent)
how many volcanoes, and how many are active
37 volcanoes - 18 are active
how many destructive earthquakes are recorded in the last 40 years
12
what belt does it lie on
SE asias typhoon belt
on average how many typhoons hit the country (june-dec), and how many are expected to be destructive
20 typhoons hit the country, 7-10 are expected to be destructive
what does el-nino bring
periodic drought (1998), where temperatures can also trigger wildfiers
what has rapid urbanisation led to
large unplanned informal settlements (esp in flood prone coastal areas) and high population densities
how much of the population on average live in poverty
25%
how much of the population live in poverty and primarily dependent on agriculture
50%
rapidly developing lower-middle income country with large population that grows how much per year
101 million growing at 1.72% per year
what happened on june 15th 1991
second largest eruption of 20th century (VEI 6)
mt pinatubo + typhoon yunya
what happened with typhoon yunya
winds up to 120mph
rainfall mixed with volcanic ash to create devastating lahars
how many people were reported to die due to 1991 mt pinatubo + typhoon yunya
847
how many houses damaged due to 1991 mt pinatubo + typhoon yunya
73,000 damaged due to heavy wet ash
economic impact 1991 mt pinatubo + typhoon yunya
$211 million
environmental 1991 mt pinatubo + typhoon yunya
powerful eruption ejected significant quantities of aerosols & dust into stratosphere to create sulphuric acid hazard
reduction in sunlight (10%) led to lowering of global temp by 0.4 degrees C
what happened in 2006
mt mayon + typhoon durian
mt mayon in 2006
active stratovolcano erupts frequently (more than 50 eruptions) in past 500 years)>
activity and perfect cone shape is major tourist attraction and major source of local income
quiet and effusive eruptions throughout 2006
