mt pinatubo Flashcards

1
Q

when was the eruption?

A

1991

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2
Q

what date where successive earthquakes felt?

A

march 1991

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3
Q

when was the first eruption?

A

may 1991

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4
Q

what was created on the 12 th june?

A

very violent eruptions creating a 24km high ash cloud

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5
Q

what was created on the 15th june?

A

pyroclastic flows travelling at 16km

34km ash cloud

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6
Q

why did the area suffer from lahars?

A

seasonal rainfall mixed with ash

heavy rain brought by typhoon yunga

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7
Q

how many people lived in the flanks?

A

30,000
did not know about the volcano
indigenous tribes

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8
Q

what are the two plates that caused the eruption?

A

eurasion plate subducting under phillipines

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9
Q

before 1991 when did the volcano last explode violently?

A

3000 years ago

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10
Q

how long did the final eruption last?

A

3 hours

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11
Q

how were people evacuated?

A

scientists immediately started monitoring the volcano using carbon dating, radon gas and ash
tens of thousands of people evacuated

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12
Q

how many people died

A

around 850

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13
Q

how far did the ash cloud extend?

A

25,000km2 brought darkness to the area

also global temp dropped by 0.5 degrees

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14
Q

how many homes were destroyed?

A

8000

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15
Q

why did children miss out on education?

A

many schools in the area were destroyed

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16
Q

how many evacuation zones were there?

A

3

17
Q

how many commercial airfreights were damaged in the ash?

A

16

18
Q

what was the VEI of the volcano?

A

6

second most explosive in 20th century

19
Q

how much did the eruption cost?

A

$700mil

20
Q

why was it such an economical loss for the phillipines?

A

as 10% of all money earn in the phillipines was made in this area

21
Q

what was an immediate air response?

A

manilla airport close d

22
Q

what did the governemt do after the volcano?

A

conducted rehabilitation and reconstruction schemes

23
Q

wha was part of the rehabilitation and reconstruction schemes?

A

building of mega dikes

reduce further flooding

24
Q

how much was the agricultural rehabilitatio programme?

A

190 million

25
Q

what happened to indigenous tribes?

A

resettled in governement owned housing

26
Q

how much sulphur dioxide was released?

A

15 million tonnes

acid rain

27
Q

who provided material for shelter?

A

USAID

28
Q

how much money did UN give >

A

50,000

29
Q

how many people evacuated before 12th june//

A

1,1 million

30
Q

what did farmers start growing?

A

peanuts and food that ripens quick to avoid lahars