We present preliminary observations on three waters impacts from the Mw7.8 14th November 2016 Kaikōura Earthquake on wider metropolitan Wellington, urban and rural Marlborough, and in Kaikōura township. Three waters systems in these areas experienced widespread and significant transient ground deformation in response to seismic shaking, with localised permanent ground deformation via liquefaction and lateral spreading. In Wellington, potable water quality was impacted temporarily by increased turbidity, and significant water losses occurred due to damaged pipes at the port. The Seaview and Porirua wastewater treatment plants sustained damage to clarifier tanks from water seiching, and increased water infiltration to the wastewater system occurred. Most failure modes in urban Marlborough were similar to the 2010-2011 Canterbury Earthquake Sequence; however some rural water tanks experienced rotational and translational movements, highlighting importance of flexible pipe connections. In Kaikōura, damage to reservoirs and pipes led to loss of water supply and compromised firefighting capability. Wastewater damage led to environmental contamination, and necessitated restrictions on greywater entry into the system to minimise flows. Damage to these systems necessitated the importation of tankered and bottled water, boil water notices and chlorination of the system, and importation of portaloos and chemical toilets. Stormwater infrastructure such as road drainage channels was also damaged, which could compromise condition of underlying road materials. Good operational asset management practices (current and accurate information, renewals, appreciation of criticality, good system knowledge and practical contingency plans) helped improve system resilience, and having robust emergency management centres and accurate Geographic Information System data allowed effective response coordination. Minimal damage to the wider built environment facilitated system inspections. Note Future research will include detailed geospatial assessments of seismic demand on these systems and attendant modes of failure, levels of service restoration, and collaborative development of resilience measures.
Decision making on the reinstatement of the Christchurch sewer system after the Canterbury (New Zealand) earthquake sequence in 2010–2011 relied strongly on damage data, in particular closed circuit television (CCTV). This paper documents that process and considers how data can influence decision making. Data are analyzed on 33,000 pipes and 13,000 repairs and renewals. The primary findings are that (1) there should be a threshold of damage per pipe set to make efficient use of CCTV; (2) for those who are estimating potential damage, care must be taken in direct use of repair data without an understanding of the actual damage modes; and (3) a strong correlation was found between the ratio of faults to repairs per pipe and the estimated peak ground velocity. Taken together, the results provide evidence of the extra benefit that damage data can provide over repair data for wastewater networks and may help guide others in the development of appropriate strategies for data collection and wastewater pipe decisions after disasters.
This paper presents on-going challenges in the present paradigm shift of earthquakeinduced ground motion prediction from empirical to physics-based simulation methods. The 2010-2011 Canterbury and 2016 Kaikoura earthquakes are used to illustrate the predictive potential of the different methods. On-going efforts on simulation validation and theoretical developments are then presented, as well as the demands associated with the need for explicit consideration of modelling uncertainties. Finally, discussion is also given to the tools and databases needed for the efficient utilization of simulated ground motions both in specific engineering projects as well as for near-real-time impact assessment.
Queenstown and Christchurch are twin poles of New Zealand's landscape of risk. As the country's 'adventure capital', Queenstown is a spectacular landscape in which risk is a commodity. Christchurch's landscape is also risky, ruptured by earthquakes, tentatively rebuilding. As a far-flung group of tiny islands in a vast ocean, New Zealand is the poster-child of the sublime.
Queenstown and Christchurch tell two different, yet complementary, stories about the sublime.
Christchurch and Queenstown are vehicles for exploring the 21st-century sublime, for reflecting on its expansive influence on shaping cultural landscapes. Christchurch and Queenstown stretch and challenge the sublime's influence on the designed landscape. Circling the paradoxes of risk and safety, suffering and pleasure, the sublime feeds an infinite appetite for fear as entertainment, and at the same time calls for an empathetic caring for a broken landscape and its residents.
Christchurch woman Pam Sharpe has endured earthquakes, fires and dealing with insurance companies, but then she received a parking ticket. She tells Checkpoint what happened next.
Rachel Conley's family has flown to Christchurch for the first time for the unveiling of the memorial wall. They are staying with a NZ family, whose son died along with Rachel in the earthquake.
The Canterbury Earthquake National Memorial was unveiled to the public at a memorial attended by more than 3000 people.
People have been queuing for days for the Bruce Springsteen concert in Christchurch tonight, ahead of the sixth anniversary of the 2011 earthquake. Glenn McCartney is at the front of the queue.
A memorial for the 185 people who died in the 2011 Christchurch earthquake will be blessed tonight, ahead of the unveiling tomorrow, on the sixth anniversary.
A woman crushed to within milimetres of her life in the Christchurch earthquake says it is murderously cavalier for Wellington's council not to cordon off weak or prone buildings.
Haeata is the first public school in Christchurch to cater for all ages, replacing three eastern suburbs schools that were closed after the earthquakes. RNZ joined more than 900 students for the first day.
Some Bruce Springsteen fans have queued for days ahead of the Boss' show in Christchurch tomorrow night - on the eve of the sixth anniversary of the 2011 earthquake.
Two former Canterbury Earthquake Recovery Authority officials attempted to use their positions for their own financial gain and their actions will now be referred to the Serious Fraud Office.
A Christchurch family have found themselves stuck with a house that is too unsafe to live in after a fire revealed earthquake damage, which EQC admits it failed to identify.
Christchurch councillor Raf Manji announces plans to stand against Earthquake Minister Gerry Brownlee in Ilam at the general election. He tells John Campbell why he is standing as an independent.
Dr Sue Bagshaw, the head of a youth health clinic Christchurch, fears the high rates of Post Traumatic Stress Disorder among children will skyrocket due to the earthquake.
The first freight train since the devastating Kaikoura earthquake has chugged into Christchurch, after an historic 348 kilometre journey from Picton.
Canterbury Museum is inviting visitors to view Quake City for free during the special exhibition's reopening this weekend, 16 & 17 September. The newly-relocated exhibition that tells stories from the Canterbury earthquakes, reopened on 14 September.
The track will open this week after being closed for nearly a year after the line suffered extensive damage in last November's earthquake.
Tourism, native planting, and bee keeping are all possibilities a community lead working group is waiting on government funding to explore.
The quake outcasts, who were uninsured at the time, will receive 80 percent of the pre-earthquake value of their homes. Three of them tell John Campbell how they've been living in limbo.
A temporary village has opened in the small Canterbury town of Waiau to help residents who lost their homes in the Kaikoura earthquake.
The Ministry of Education has been forced to apologise for its flawed handling of school closures and mergers after the 2011 Canterbury earthquake.
The Christchurch suburb of New Brighton was hit hard by the Christchurch earthquakes, with roads that still haven't been fixed and many families on struggle street. One local is hoping a fridge offering free food, will help.
For the first time in six years, music has filled Christchurch's Town Hall, which suffered significant damage in the February 2011 earthquake.
Medium-density fibreboard has been sitting at an old rubbish put in Wigram since the earthquakes and residents are worried it's harming their health.
The Lyttelton Port Company, owned by Christchurch City Council, will spend $56 million on a new berth for cruise ships, which haven't visited the garden city since the 2011 earthquake.
The former Earthquake Recovery Minister's decision to exclude uninsured Canterbury landowners under the Recovery Plan was unlawful, the Court of Appeal has ruled in an interim judgement.
The Christchurch earthquakes caused devastating damage to many of the city’s creative spaces. But rising from the rubble has been the Isaac Theatre Royal under the watchful eye of Neil Cox. He’s directed the resurrection of one of the premiere performance spaces in the country.
Built in June 1917, the popular 'Sign of the Kiwi' heritage building in Christchurch's Port Hills has re-opened today after being closed for six years due to earthquake damage.
