A M6.3 earthquake hit Christchurch, New Zealand on 22 February (21 Feb in UTC), leaving at least 75 people dead and hundreds injured or missing. [Update: The buildng was sold to private investors in 2009.] Unfortunately, the Arts Centre, which was built from 1877 onwards, suffered some Because noticeable earthquakes are rare in most areas, people may not recognize that the objects and buildings around them represent potential hazards. In Christchurch we have been very attached to our heritage buildings, but now it is time to move forward and rebuild from the ground up. In my Uni office, and in sharp contrast to the September earthquake, there is not one paper or book that has moved. However, in Christchurch we also have many old buildings which predate these regulations. It was been done at the time when the Americas Cup parade was held in CHCH. Even the underground fuel tanks at my local service station, filled with fuel just the day before, were thrust upwards by this force. On 22 February 2011, at 12:51 pm, Christchurch was struck by a magnitude 6.3 earthquake. On Tuesday 22 February 2011 at 12.51 p.m. Christchurch was badly damaged by a magnitude 6.3 earthquake, which killed 185 people and injured several thousand. Unfortunately, a house with a concrete pad that has cracked and split is history. Why did so many buildings survive the earthquake? The earthquake damage to modern buildings in Christchurch caught many experts by surprise and suggests the city was more prone to destructive tremors than … Commentary on agriculture, rural development, and wider issues. Case study: Christchurch 2011 (HIC) Causes The earthquake struck the city of Christchurch in New Zealand on 22 February 2011. In the ten minutes after it hit, there were 10 aftershocks of magnitude 4 or more. Each day over the last five months, as I have driven to work, I have looked with wonder at a multi-million-dollar modern home owned by a well-known sporting identity, which looks normal from the road but is going to be pulled down for exactly this reason. It may have been 1979.] The Grand Chancellor hotel was originally constructed in the mid 1980s as an office tower. Why Was New Zealand's Latest Earthquake So Deadly? At 12.51 p.m. on Tuesday 22 February 2011, a magnitude 6.3 earthquake caused severe damage in Christchurch and Lyttelton, killing 185 people and injuring several thousand. The real truth will never be revealed it’s just too embarrasing, but speak to any builder that was not involved in the Grand Chancellor and if they are willing they will tell you that it was always a disaster waiting to happen. Ha, fatty. Debbie Jarvis The earthquake damage to modern buildings in Christchurch caught many experts by surprise and suggests the city was more prone to destructive tremors than local planners realised. It is in Cashel St, several hundred metres from the Avon River. The original building codes go back to 1935, but earthquake design really only started in 1965. Some buildings will be written off and torn down, while others will be repairable or declared safe for immediate occupation. Developers, councils and engineers do some great work, no argument there, but when you see something like the Grand Chancellor and the Ferrymead towers go ahead you really do wonder how they (the designer) can even think it looks good, surely they cannot be proud of those buildings, they are just damn ugly. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. I had always thought before the quakes, that the columns in the ground floor holding up everything in the floors above above were an inherent weakness. In any case, the Uni itself is being used as a base for rescue personnel. Many thanks and I look forward to hearing from you soon. The Christchurch Earthquake: tectonic plates and fault lines, Understanding the Christchurch earthquake: building damage, http://ecan.govt.nz/publications/General/solid-facts-christchurch-liquefaction.pdf, » Blog Archive » Christchurch earthquake aftermath, YEAR 5 SCIENCE PROJECT-FINAL | YEAR 5 SCIENCE PROJECT, Regenerative agriculture is not redundant but can be misguided, It’s time for Fonterra to define the new path ahead, Agriculture will change but pastoral agriculture will survive and prosper, Green-lipped mussels are becoming heavy lifters, Composting mootels can transform dairy, but only if we get things right, Fonterra stabilises finances with back to basics model, selling assets and retaining profits, Coronavirus border policies need a deeper rethink, Green vegetables grow at the feet of big mountains, Big win for Fonterra from latest DIRA amendments, A resource-based perspective on immigration, Is regenerative agriculture the real deal. "When shaken, these sediments transform into a liquid, causing irregular settlement of the ground, which is extremely damaging to buildings and buried structures, like water lines.". Earthquake is a combination of a lot of frequencies. Beaches and waterways were polluted for many … Several aftershocks were reported, some registering at a 5.6 magnitude. Because the ground loses its rigidity, buildings can be shaken far more violently. These are just three of many photos taken by Asher, who jumped on his bike and took some amazing photos around the city in the immediate aftermath. Advance Publishing Ltd, Pingback: » Blog Archive » Christchurch earthquake aftermath. As for the low-lying eastern suburbs, here too it won’t be until the engineers’ reports are available that the real picture will emerge. Impacts of Christchurch Earthquake In total, the 'rehabilitation' costs $15.1 billion dollars worth of damage, Many businesses needed to fire employees due to the heavy re-building fee. It was with surprise that the Drainage Board/PGC which collapsed onto the first floor, did not collapse completely. Having planned the building of a new house both in Australia (in the 1980s) and in New Zealand ( in 2001), I know that the building code is a lot stronger here in New Zealand than in Australia. Of all the buildings that have been affected by the earthquakes this one has demonstrated to me that looks alone are most certainly not any indication of resilience or strength. One small but perhaps important point is that at least in some places the water and sand continued to bubble up for hours after the earthquake and not just during the earthquake. Yet only a few km away there is no damage. So one has to ask the question, how could the tsunami have killed so many people in a country that was supposed to be the most tsunami-aware nation on Earth? It is the stringent New Zealand building codes that make house building so expensive in this country. It seems to me that we still have much to learn about liquefaction. A lot will depend on whether the concrete pads have shifted, cracked, and tilted. It would seem that some were killed by the ensuing fire after being trapped. Thanks. Liquefaction happens when underground water in the soil comes to the surfac… This provides a reminder that the Christchurch earthquake really was a local event: short, sharp and vicious. This building is adjacent to the Avon River in Cambridge Terrace. The soil is considered susceptible to liquefaction and have a very low resistance to liquefaction. Earthquake resistance can and is, in many cases, built into the design of the building. Presumably it was built to the latest codes so as to absorb the energy without suffering structural failure. The rest of the building was in effect suspended from this core with only light support in the corners.] It was turned down by a number of building companies because of the dubious nature of the project. Hi Keith, The conventional view on liquefaction seems to be that the damage is caused by subsidence of the buildings into the soil, but I don’t think it has to be this way. Christchurch Hospital was evacuated due to damage in some areas, but soon reopened to treat the injured. The collapse of the cathedral is less surprising. What is clear is that people on the upper floors had the best chance of escape, with many of those on the lower floors being crushed by the collapse of heavy concrete floors. As to whether they have retained their structural integrity underneath, that will require an engineer’s report. With the February earthquake there now seem many more lessons to learn. Damage to buried pipes allowed sewage to enter the water so people had to boil their tap water. Some places that escaped liquefaction last time have received it this time, and vice versa. Also, both in September 2010 and again in February 2011, there has been some liquefaction in areas previously identified as low risk. Modern design is not supposed to mean there will be no damage, but it is meant to prevent catastrophic failure that causes death. The severity of the damage appears to be due to a combination of the earthquake coming from a previously unknown fault that runs beneath the city from the nearby Alpine fault, and the violence of the shaking because the city rests on damp sediments. Before and after shots (below) of the seven storey CTV building (built in the 1980s) show another modern-looking building. As had happened after the 4 September 2010quake, there was a lot of liquefaction. I am preparing a report on the Christchurch earthquake for Rotary Down Under magazine and I’m wondering if I might have permission to publish your image of Liquefaction on Kilmore St? There are many puzzles as to why some of Christchurch's buildings have survived the 6.3 earthquake of February 2011, and others have not. It was the middle of a working day and many people were at school or work, having lunch or running errands. The earthquake struck the Canterbury region in New Zealand's South Island and was centred 6.7 kilometres (4.2 mi) south-east of the centre of Christchurch, New Zealand's second-most populous city. Christchurch Earthquake Its is the energy being moved through the rock like a whale song in the ocean. Some buildings caught fire after the February earthquake. Both this building and the now Hotel So were built at about the same time. Architects and engineers sometimes do get it wrong, the ugly towers at Ferrymead are testiment to that, no matter how clever people think they are some projects should just not be done regardless of reputation and influence. 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