Tectonics Flashcards

(66 cards)

1
Q

what is a mega disaster
4

A

2000+ deaths
200,000 homeless
5% GDP lost
a year of aid or more

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2
Q

what is a P wave

A

it’s the primary wave that moves up and down

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3
Q

what is an S wave

A

it’s the secondary wave and moves side to side

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4
Q

what is intensity determined by
3

A

-magnitude
-focal depth
-geology

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5
Q

what does the VEI do

A

measures volcanic power
(ejected material)

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6
Q

what are signs of development in a country
2

A

HDI
Wealth equality

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7
Q

what can reduces the impact of hazards ( if a country has economic development)
3

A

-better infrastructure
-advanced technology for monitoring prediction and warning systems
- stronger healthcare

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8
Q

an example of a highly developed country when they suffered an hazard

A

Japan in 2011

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9
Q

what was the magnitude and the total cost of the japan 2011 tsunami

A

9.1 and $220 billion

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10
Q

what’s a world city

A

it’s a high globally connected city

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11
Q

how many people are in a mega city

A

10 million +

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12
Q

what was the magnitude and when was the earthquake in haiti + deaths

A

7 and 200,000 deaths
2010

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13
Q

what is my main argument for haiti
(dev)

A

it’s how developing countries are more vulnerable and are less resistant

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14
Q

how to measure magnitude
2

A

-richter scale
- moment magnitude scale
(energy and ground movement)

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15
Q
A
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16
Q
A
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17
Q

why was haiti so bad
4

A

-poor quality buildings (slums)
-density of population
-poor governance (no building reg)
-no education on earthquakes

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18
Q

what did japan do with their early warning systems

A

it lead to an automated alert VIA tvs, and mobile phones

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19
Q

what prediction did japan use
2

A

satellites and pressure sensors

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20
Q

physical characteristics of the Haiti earthquake
2

A

magnitude of 7
13km depth->intense shaking

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21
Q

primary impacts of Haiti
3

A

-250,000 houses destroyed or badly damaged
-230,000 people died
-all hospital destroyed

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22
Q

secondary impacts of Haiti
2 both diseases

A

-cholera broke out due to poor sanitation and drinking dirty water (affecting 720,000 people)
-high temperature after made the bodies to start decaying-> diseases

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23
Q

immediate responses in Haiti 2

A

-115,000 tents were set up to provide shelter
-other countries sent large numbers of doctors

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24
Q

long term responses in Haiti
2

A

$1.1 billion raised by charities
-The EU stopped their debt repayments for 5 years

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25
what are examples of primary hazards 5
earthquakes, volcanoes, floods, wildfires, droughts
26
secondary hazard examples 4
landslides, tsunamis, lashes and fires?
27
what is speed of onset for hazards
how quickly the hazard affects people
28
what is hazard profiling
Hazard profiling is a technique used to compare different types of hazards (mag, speed of onset, duration, areal extent)
29
what intensity determined by
-magnitude -focal depth -geology (soft wet ground moves more)
30
what is focal depth
how deep below the Earth’s surface the earthquake starts
31
Haiti vs Kobe magnitude
H-7 K-6.9
32
Haiti vs Kobe speed of onset
H-2 seconds no warning K-20 seconds no warning
33
Haiti vs Kobe duration
H-30-40 seconds K-20 seconds
34
Haiti vs Kobe- spatial area
35
what are the 4 Ms of management
-modify the cause-> impossible -modify the event-> hazard resistant buildings -modify the risk-> monitoring, education -modify the loss-> insurance, relief
36
how can you modify a hazard like volcanoes 3
-lava flow diversion -warning systems -hazard mapping
37
what is the hazard response cycle 4 steps
how a country response before and after the even
38
what is parks model about (simple)
the disaster response curve
39
what is parks model
it’s stages about how a country responds to a hazard
40
what are the prediction methods for earthquakes 4
-seismic monitoring networks -animal behaviour observation -statistical probability models based on historical data -foreshock analysis (analysing small earthquakes to predict big one)
41
what is the degree of accuracy for earthquake prediction methods 3
-cannot predict specific timing (hour/day) -can identify high risk areas -very poor at predicting magnitude
42
what is an example of accurate prediction earthquakes year? and based on what
Haicheng China 1975 -7.3 mag with mass evacuation ordered-> based on foreshocks, animal behaviour
43
what are some examples of volcano prediction methods 3
-seismic activity monitoring -gas emission analysis -thermal monitoring
44
what is the degree of accuracy for volcano prediction methods 3
-location very accurate (where it is) - success rate 70-80% -timing-> predicted days to weeks
45
what is an accurate prediction for volcanoes example evacuated?, how long did they monitor?, when and where
Mount Pinatubo 1991 -58,000 evacuated -2 months monitoring detected increasing activity
46
what are some examples of tsunamis prediction methods 3
-deep ocean pressure sensors -seismic networks -historic tsunami data
47
what is the degree of accuracy for tsunamis prediction methods 3
-very accurate for location -very accurate for timing - 95% success rate
48
what is an inaccurate prediction for tsunamis example how long of a warning?, when and where
Indian ocean tsunami 2004 -no pacific warning systems -230,000 deaths - thailand had a 2 hour warning but with no system to spread awareness
49
what was each of these hazards about if they were in categories 4 Haiti, asian, japanese, E15
- Haiti 2010, death toll - Asian Tsunami 2004, spatial deaths -Japanese Tsunami 2011, Nuclear - E15 2010, economic
50
Haiti 2010 deaths, how it was aided with management and the effect the earthquake has globally
-1.1 million deaths -dozens of countries and international organisations sent aid -the event did not affect global supply systems
51
asian tsunami 2004 mag, cost and deaths, how many countries affected. and did it affect shipping
9.1 magnitude, 14$ billion and 230,000 deaths -14 countries affected and affected shipping as ports were destroyed
52
53
japanese tsunami 2011 deaths, cost , what was destroyed, and what was the international impact
15,800 deaths, 300$ Billion -nuclear power plant destroyed - the was international nuclear pollution-> negative relationships formed
54
pinatubo- cost, aid?, effect on climate
375$ million, global aid, dropped global climate by 0.5 degrees
55
what were the long term consequences of pinatubo 2
-lahar damage continued for years -clark air base abandoned leading to significant geo political changes
56
what were the environmental global effects of Pinatubo 2
-20 million tons of sulphate dioxide -ozone depletion effects
57
what risk reduction and preparing was down for mount Pinatubo 3
-building codes/ regs -volcanic hazard mapping -evacuation planning and shelter protection
58
what are the 3 key factors of prediction
-magnitude -location and spatial area -time
59
how did the japanese tsunami in 2011 prevent and minimise damage/deaths
an automated issue alert via tv and phones
60
what ways can you measure magnitude 2
richter scale moment magnitude scale
61
how can you measure intensity and what does it look at 1
-modified mercalli scale 1-12 height of focus, how saturated ground is
62
why was Kobe so bad 2
shallow focus-> increased intensity of shaking -liquefaction on artificial islands
63
what is a world city
a highly globally connected city
64
what is counter urbanisation
movement of people out of the cities and into rural areas
65
what is centripetal migration
the movement of people directed towards the centre of urban areas
66
6 key words for paper 1
resilience vulnerability governance frequency risk magnitude