How was Christchurch affected by the earthquake?
Christchurch’s central city and eastern suburbs were badly affected, with damage to buildings and infrastructure already weakened by the magnitude 7.1 Canterbury earthquake of 4 September 2010 and its aftershocks. Significant liquefaction affected the eastern suburbs, producing around 400,000 tonnes of silt.
Where did liquefaction occur in Christchurch?
The liquefaction was particularly extensive and damaging along the meandering loops of Avon River, from the CBD to the Avon-Heathcote Estuary, where multiple episodes of severe liquefaction occurred during the earthquakes.
Where is the Christchurch red zone?
The majority of red-zoned areas were in the eastern suburbs along the Avon River / Ōtākaro, downstream of Christchurch Central City. Affected areas included Avonside, Wainoni, Dallington, Avondale, Burwood, New Brighton, and Bexley.
How many aftershocks were there in the Christchurch earthquake 2011?
On 22 February 2011, at 12:51 pm, Christchurch was struck by a magnitude 6.3 earthquake. The quake was centred 10km south-east of the city at a depth of 5km. In the ten minutes after it hit, there were 10 aftershocks of magnitude 4 or more.
Why is Christchurch prone to liquefaction?
Liquefaction caused widespread damage during the Christchurch earthquake of 22 February 2011. In the central city, silt was pushed up and partly buried parked cars. Severe shaking in an earthquake puts pressure on the silt and water particles in these waterlogged layers, turning once firm sediment into a liquid.
Why is Christchurch vulnerable to liquefaction?
Groundwater levels move up and down over time. Earthquake shaking – Stronger earthquake shaking causes more of the soil profile to liquefy and causes more severe ground damage.
What is liquefaction Christchurch?
Liquefaction is a natural process where earthquake shaking increases the water pressure in the ground in some types of soil, resulting in temporary loss of soil strength. Liquefaction can cause significant damage to land, buildings, infrastructure and the environment, as well as economic and social disruption.
Who owns the red zone?
NFL Network
NFL RedZone (stylized as NFL RedZone from NFL Network) is an American sports television channel owned and operated by NFL Network since 2009….NFL RedZone.
| Programming | |
|---|---|
| Owner | National Football League |
| Sister channels | NFL Network |
| History | |
| Launched | September 13, 2009 |
How many people died in Christchurch earthquake?
Christchurch was badly damaged by a magnitude 6.3 earthquake, which killed 185 people and injured several thousand.
What were the causes of the Christchurch earthquake?
The Causes of the Christchurch Earthquake On the 22nd of February 2011, 12:51 pm a catastrophic earthquake hit Christchurch, New Zealand. The Australian Plate and the Pacific Plate share a convergent plate boundary. The earthquake was caused by the two plates being forced together for a long time .
How big was the earthquke in Christchurch?
In 2011, a magnitude 6.3 earthquake struck Christchurch, New Zealand. Over 180 lives were lost as a result, but many more were likely saved by modern building codes. However, the city’s economy and quality of life were not spared.
Why did the Christchurch earthqauke occur?
In September 2010, Christchurch was shaken by the magnitude 7.1 Darfield earthquake, caused by movement along faults west of the city on the Canterbury Plains . This earthquake produced a visible rent across the landscape that allowed scientists to directly measure the movement of the longest fault segment, the Greendale Fault.