CHRISTCHURCH EARTHQUAKE CASE STUDY A2

Image courtesy of Wikipedia. Chemical toilets were provided for 30, residents. An earthquake struck on 4th September and was similar in magnitude to the Haitian earthquake in January magnitude 7. An additional 1, people were injured in the aftermath. Some economists have estimated it will take the New Zealand economy 50 to years to completely recover.

Epicentre was closer to Christchurch 2. Do you know whether it was the Pacific or Australian plate which was lifted above the other? It had special powers to change planning laws and regulations. Damage to roads through liquefaction made it difficult for people and emergency services to move around 7. In New Zealand there were no deaths and only 2 serious injuries in comparison with Haiti which suffered , casualties and 1.

Sign up to Comment. Physical Impacts There was significant soil liquefaction when saturated soil behaves like a liquid due to applied stress in the eastern suburbs of Christchurch This producedtonnes of silt which caused significant land slips and rockfalls.

Location and Hazard The earthquake happened on 22nd February The epicentre was 6 miles south-east of Christchurch It occurred at a destructive plate boundary, where the Pacific and Indo-Australian plates are converging The earthquake sstudy 6.

The Focus was shallower, only 5 kilometres underground, whereas the September quake was 10 kilometres deep. Regardless, earthquqke earthquake was created along a earthquakd plate margin where the Pacific Plate slid past the Australian Plate in the opposite direction. The red zone was the residential area along the banks of the river Avon. There are building codes implemented as early as and updated today protect buildings from damage during moderate earthquakes and in the case of major ones ensuring they do not collapse.

HuffPost reader Laura Campbell submitted these photos of the damage in Christchurch.

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christchurch earthquake case study a2

Many schools that were undamaged by the quake had to close due to liquefaction from the bursting of stressed pipes. Canterbury Earthquake Procurement Support5 Christchurch city centre.

This producedtonnes of silt which caused significant land slips and rockfalls. Almost half of the buildings in Christchurch were damaged or destroyed as the peak acceleration was 1. Earthquale earthquake occurred at lunchtime, during the working week.

christchurch earthquake case study a2

Primary responses Neighbouring Dominican Republic provided emergency water and medical supplies as well as heavy machinery to christchurch with search and rescue underneath the rubble, but most people were left to dig through the rubble by hand. Building designs which help to minimise the earthquake of earthquakes. The February earthquake was smaller in magnitude than the quake, but the earthquake was more damaging and deadly.

Do you know whether it was the Pacific or Australian plate which was lifted above the other? Damage to roads through liquefaction made it difficult for people and emergency services to move around 7.

A2 AQA Geography Resources: Case Studies (Seismic)

Secondary effects things that happen after the primary earthqauke but often as a result of them. The shallow focus and close proximity to the epicentre meant the effects were measured as 8 on the Mercalli intensity scale measures building destruction.

Up tobuildings were damaged and about 10, buildings needed to be demolished. In the weeks following the earthquake about 70, people were believed to have left the city due to uninhabitable homes, lack of basic services and continuing aftershocks.

Significant liquefaction affected the eastern suburbs, producing aroundtonnes chrsitchurch silt ” Sink holes and liquefaction North New Brighton Feb ” by Martin Luff – Flickr: In New Zealand there were no deaths and only 2 serious injuries in comparison with Haiti which sufferedcasualties and 1. Business were put out of action for long periods causing losses of income and jobs.

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Christchurch could no longer host Rugby World Cup matches so lost the benefits, e. Schools had to amalgamate. The relatively shallow depth of 5km of the earthquake resulted in its destructive power being high even though its magnitude was not particularly high.

It was a strike slip event along the fault, mostly horizontal movement with some vertical movement upwards. GeoNet is a national network of instruments and data centres that monitors earthquakes and hazards and can provide information to emergency services within minutes. Significant liquefaction affected the eastern suburbs, producing aroundtonnes of silt. The February earthquake occurred during lunchtime on a weekday when the CBD was busy, and many buildings were already weakened from the previous quakes.

The AMI stadium had deep foundations and a network of 10m stone pillars covering 12,m square to reduce the risk of liquefaction, however this was not enough as 2 christvhurch subsided around 40cm. A2 Plate tectonics – Case study comparison.

New Zealand Earthquake Case Study

Many buildings simply collapsed or were damaged beyond repair. The population, which had been growing for decades, declined in the years after the quake.

There was significant soil liquefaction when saturated soil behaves like a liquid due to applied stress in the eastern suburbs of Christchurch.