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4 September 2010 4.35am NZT Magnitude 7.1 Depth 11km Epicentre around 40km west of Christchurch Human toll: 0 deaths, 2 serious injuries Estimated financial.

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Presentation on theme: "4 September 2010 4.35am NZT Magnitude 7.1 Depth 11km Epicentre around 40km west of Christchurch Human toll: 0 deaths, 2 serious injuries Estimated financial."— Presentation transcript:

1 4 September 2010 4.35am NZT Magnitude 7.1 Depth 11km Epicentre around 40km west of Christchurch Human toll: 0 deaths, 2 serious injuries Estimated financial cost: approx. NZ $4 billion

2 * * M 7.1 epicentre A B A = Highfield Road, B = Homebush, C = Halswell Rd C www.geonet. … /var/storage/images/media/images/news/2010/map_of_fault_20100912/44957-3-eng-GB/map_of_fault_20100912.jpg

3 photo V Wood Fault displacement at Highfield Rd

4 Homebush homestead (W of Darfield) APN/The Star, Earthquake - September 4, 2010

5 Liquefaction by Halswell Rd - photo A Wood Liquefaction - under extreme shaking, water stops binding fine sand particles(get a slurry of fine sand / silt) - under compression, excess water (carrying fine sand / silt with it) explodes through soil surface in ‘sand volcanoes’

6 A B APN/The Star, Earthquake - September 4, 2010 Buckled Avonside footbridge, and Kaiapoi house affected by lateral slumping

7 C,D St Peter’s Church, Riccarton - photo V Wood Inside the James Hight Library, University of Canterbury - photo [UC] Chronicle 24 Sept 2010

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