Unit 4 - Case Studies (New Zealand Earthquakes)

Question 1

What year was the first earthquake?

Answer 1

2011

Question 2

How many people did the 2011 earthquake kill?

Answer 2

185 people

Question 3

Where did the 2011 earthquake occur?

Answer 3

Christchurch - it was very close to the city of Christchurch

Question 4

How many aftershocks were there in 2011?

Answer 4

10

Question 5

How many people were seriously injured and why was that?

Answer 5

164 people due to the collapse of two large buildings

Question 6

What time did the 2011 earthquake occur?

Answer 6

12:51pm (lunchtime)

Question 7

What magnitude was the 2011 earthquake?

Answer 7

6.3

Question 8

What year was the second earthquake?

Answer 8

2016

Question 9

How many aftershocks were there in 2016?

Answer 9

313 - still a low death toll however

Question 10

What magnitude was the 2016 earthquake?

Answer 10

7.8 - meaning the magnitude was more than 10 times greater than the earthquake in 2011

Question 11

What time did the 2016 earthquake occur?

Answer 11

It happened just after midnight

Question 12

Whereabouts did the 2016 earthquake occur?

Answer 12

55 miles northeast of Christchurch meaning it was further away than the densely populated city

Question 13

How many people died in the 2016 earthquake?

Answer 13

2 people

Question 14

What response methods did they have in place which is a sign of good mitigation strategies?

Answer 14

They had emergency response teams at the ready, their immediate priority was ensuring the delivery of clean water and food

Question 15

How much was the damage costs estimated at in 2016?

Answer 15

$2 billion by the government

Question 16

What were many people left without during the 2016 quake?

Answer 16

Power or phone lines

Question 17

What did the local electricity distribution company undertake as a mitigation strategy?

Answer 17

Detailed seismic risk assessment and mitigation - we can see how effective this has been due to their being a clear change in the impacts from 2011 to 2016

Question 18

How much did they spend on seismic strengthening?

Answer 18

$6 million dollars

Question 19

New facilities were designed to withstand a…

Answer 19

…500 year seismic event with little or no distruption

Question 20

What have they been educating the local area on?

Answer 20

How to look after themselves when an earthquake occurs

Question 21

What were the majority of deaths from in 2011?

Answer 21

The CTV building due to it not meeting construction standards

Question 22

What have they done to the CTV building since the 2011 earthquake?

Answer 22

It has been improved and this has reduced earthquake damage

Question 23

What have they installed to operate through earthquakes?

Answer 23

Telecommunication buildings to operate through earthquakes using seismically braced equipment