Tectonics Flashcards

1
Q

When was the Nepal earthquake?

A

2015

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2
Q

What magnitude was the Nepal earthquake?

A

7.8

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3
Q

How many people died/were injured in the Nepal earthquake?

A

8,600 died
21,000 injured

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4
Q

How many people made homeless due to the Nepal earthquake?

A

3 million

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5
Q

Why was the Nepal earthquake so devastating?

A

Vulnerable, weak infrastructure couldn’t withstand the shaking
Mountainous areas - landslides
Lack of a warning system
Emergency services relied on international aid

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6
Q

Long term effects of the Nepal earthquake

A

Lost 25% of GDP as tourism fell
$6.6 billion needed for rebuilding
1/2 million homes damaged

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7
Q

What kind of plate boundary was the Nepal earthquake situated on?

A

Destructive plate boundary

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8
Q

When was the Haiti earthquake?

A

2010

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9
Q

What magnitude was the earthquake in Haiti?

A

7.0

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10
Q

How many people died/were injured in the Haiti earthquake?

A

220,000 died
300,000 injured

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11
Q

Why was the Haiti earthquake so devastating?

A

Shallow focus increased shaking and liquefaction
Epicentre was 24km from Port-au-Prince (capital)
Haiti is a developing country and resources are spent on immediate issues rather than earthquake precautions
High level of government corruption
Only had 1 airport - slowed down aid efforts
1/4 government officials killed

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12
Q

Secondary impacts of the Haiti earthquake

A

Outbreak of cholera
Many in temporary housing/ camps

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13
Q

How much aid was given to Haiti post earthquake?

A

$13 billion

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14
Q

When was the Japan earthquake and tsunami?

A

2011

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15
Q

What magnitude was the Japan earthquake and tsunami?

A

9.0
10m tsunami

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16
Q

Why was the Japan earthquake less devastating?

A

Wealthy and developed country
Offshore sensors for tsunami warnings
75% of buildings built to withstand shaking
Low corruption levels
Good education (drills practiced in schools)
Disaster plans in place (emergency kits)
Tsunami walls

17
Q

How many people died in the Japan earthquake and tsunami?

18
Q

What kind of plate boundary was the Japan earthquake on?

A

Convergent plate boundary

19
Q

Secondary impacts of Japan earthquake and tsunami

A

Fukushima Nuclear Power Plant was severely damaged and release dangerous levels of radiation

20
Q

When was the E-15 eruption?

21
Q

What kind of plate boundary was the Haiti earthquake on?

A

Convergent plate boundary

22
Q

Impacts of the E-15 eruption

A

More than 100,000 flights cancelled
Worldwide airlines lose $1.7 billion in revenue
No deaths
Hotspot volcano
VEI 3

23
Q

When did the Monteserrat volcano erupt?

24
Q

Impact of Montserrat volcanic eruption

A

The capital, Plymouth, was destroyed
3/4 of all infrastructure destroyed
2/3 of the island is uninhabitable
20 deaths

25
When was the earthquake in Sichuan?
2008
26
How many people were affected in the Sichuan earthquake?
45.5 million
27
How many people were made homeless due to the Sichuan earthquake?
5 million
28
What magnitude was the earthquake in Sichuan?
7.9
29
Why was the earthquake in Sichuan less devastating than Haiti?
Rural location Strong central government responded Medical services restored, preventing disease Within 2 weeks temporary homes, roads and bridges were being built Tough building codes
30
Impacts of the earthquake in Sichuan
25% of deaths were due to landslides Thousands of schools collapsed Made Sichuan more resilient to future hazards
31
When was the Indian Ocean tsunami?
2004
32
Why was the Indian Ocean tsunami so devastating?
No warning system 51m high wave in Indonesia Earthquake was very close to densely populated coastal communities
33
Long term impacts of the Indian Ocean tsunami
Freshwater supplies were contaminated with salt water Ecosystems were severely damaged e.g. mangroves, coral reefs
34
How many people died in the Indian Ocean tsunami?
300,000
35
What was the cost of the Indian Ocean tsunami?
$10 billion
36
Why is the Philippines a multiple-hazard zone?
Located on a convergent plate boundary (earthquakes and volcanoes) Pacific Ocean (tsunami) Typhoon belts Tropical monsoon climate 47 volcanoes (30% of the pop lives within 30km of a volcano) Steep topography (landslides)
37
Mount Pinatubo
1991 VEI 6 800 deaths