RECENT SEISMIC EVENT IN A HIC

Question 1

Where and when

Answer 1

New Zealand 2010+2011 Christchurch earthquakes

Question 2

Where does New Zealand sit

Answer 2

By the hazard boundary of the Pacific + Australian plates

Question 3

What occurs at 6cm/year on north island

Answer 3

Subduction

Pacific plate subducted under Australian plate

Question 4

What region suffered eathquate in September 2010
What was the magnitude
Where was the epicentre

Answer 4

Canterbury region
7.1 magnitude

Epicentre - 40km west of Christchurch

Question 5

What earthquake had the greatest affects
When was it and what was magnitude
Where was epicentre

Answer 5

Second one

22nd February 2011
6.3

Epicentre only 10km from Christchurch

Question 6

3 social impacts from 2011 Christchurch earthquakes

Answer 6

• death toll 182
• nearly 7000 treated for injuries
• 10,000 houses in sue burns demolished
• Christchurch cathedral spire brought down
• 115 in Canterbury television building when it collapsed + caught fire

Question 7

How much did the government estimate the rebuild to cost

Answer 7

NZ$40 billion

Question 8

What facilities at Littleton were damaged (economic impact)

Answer 8

Harbour

Question 9

Why couldn’t affected areas be rebuilt on (environmental impact)

Answer 9

Due to Widespread soil liquefaction across Suburbs

Question 10

What did liquefaction cause in some suburban areas

Answer 10

Flooding

Question 11

What occurred in Lake Tasman

How

Answer 11

A tsunami over 3m high

As ice was dislodged from Tasman glacier

Question 12

3 short-term responses

Answer 12

• international rescues teams came to help (japan, USA, UK, Taiwan, Australia)
• aid money (Australia gave $5 million)
• government declared state of emergency
• domestic help available (Farmy Army)
• chemical toilets provided for 30000 residents

Question 13

4 zones Christchurch was divided into

Answer 13

Green - undamaged and could be re-build on
Orange - more checks needed before land could be built on
White - not been checked yet
Red- unstable to build on safely

Question 14

3 long term responses

Answer 14

• government provided temporary housing
• water and sewage areas restored for all residents by August
• roads and houses clean of silt from liquefaction
• NGOs helped e.g Save the Children

Question 15

What was created to organise the rebuild of the region

Answer 15

Canterbury earthquake recovery authority