phillipines multiple hazard zone 1.10 Flashcards

1
Q

world risk index (2016)

A

ranked 3rd

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2
Q

of the 10 most at-risk cities from natural hazards in the world, how many are from the phillipines?

A

8

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3
Q

how much of the population is exposed to 2 or more hazards?

A

74%

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4
Q

how many major hazard events experienced between 1960s-2015?

A

555

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5
Q

what year saw the countrys most devastating recent earthquake (bohol) and typhoon (haiyan) hit within one month

A

2013

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6
Q

what plate boundary is it situated on

A

ring of fire

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7
Q

what margins joined by conservative margin

A

2 major destructive (convergent)

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8
Q

how many volcanoes, and how many are active

A

37 volcanoes - 18 are active

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9
Q

how many destructive earthquakes are recorded in the last 40 years

A

12

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10
Q

what belt does it lie on

A

SE asias typhoon belt

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11
Q

on average how many typhoons hit the country (june-dec), and how many are expected to be destructive

A

20 typhoons hit the country, 7-10 are expected to be destructive

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12
Q

what does el-nino bring

A

periodic drought (1998), where temperatures can also trigger wildfiers

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13
Q

what has rapid urbanisation led to

A

large unplanned informal settlements (esp in flood prone coastal areas) and high population densities

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14
Q

how much of the population on average live in poverty

A

25%

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15
Q

how much of the population live in poverty and primarily dependent on agriculture

A

50%

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16
Q

rapidly developing lower-middle income country with large population that grows how much per year

A

101 million growing at 1.72% per year

17
Q

what happened on june 15th 1991

A

second largest eruption of 20th century (VEI 6)
mt pinatubo + typhoon yunya

18
Q

what happened with typhoon yunya

A

winds up to 120mph
rainfall mixed with volcanic ash to create devastating lahars

19
Q

how many people were reported to die due to 1991 mt pinatubo + typhoon yunya

A

847

20
Q

how many houses damaged due to 1991 mt pinatubo + typhoon yunya

A

73,000 damaged due to heavy wet ash

21
Q

economic impact 1991 mt pinatubo + typhoon yunya

A

$211 million

22
Q

environmental 1991 mt pinatubo + typhoon yunya

A

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

23
Q

what happened in 2006

A

mt mayon + typhoon durian

24
Q

mt mayon in 2006

A

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

25
Q

typhoon durian 2006

A

crossed volcanoes path in nov 2006 bringing heavy rainfall to albay province (457mm) and causing widespread flooding in legazpi city - main regional port

rainfall mixed with ash deposits and debris to create mudflows and lahars that buried farms and villages

26
Q

how many people did 2006 mt mayon + typhoon durian kill

A

over 1,250 people