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Audio, Radio New Zealand

Primary and intermediate teachers marching in Christchurch echoed the message of their colleagues further north - they also want pay increases and improved working conditions. But they say that their classrooms are even more complex as they continue to deal with the effects of the earthquakes - and the associated trauma.

Audio, Radio New Zealand

The Prime Minister prepares for the Christchurch Call Summit in Paris saying governments need to protect their citizens from radicalisation, Police investigate who sent a threatening letter to the Earthquake Commission, A powerful 7.5 magnitude quake strikes PNG overnight.

Audio, Radio New Zealand

Job fears intensify in Taranaki after the breadmaker Yarrows strikes trouble, Rugby World Cup organisers admit tickets are a tough sell, The former Bosnian Serb military commander is taken to The Hague to stand trial for war crimes,If earthquakes weren't damaging enough, jobs go in Christchurch as a bus manufacturer goes into liquidation.

Research papers, University of Canterbury Library

This paper provides a photographic tour of the ground-surface rupture features of the Greendale Fault, formed during the 4th September 2010 Darfield Earthquake. The fault, previously unknown, produced at least 29.5 km of strike-slip surface deformation of right-lateral (dextral) sense. Deformation, spread over a zone between 30 and 300 m wide, consisted mostly of horizontal flexure with subsidiary discrete shears, the latter only prominent where overall displacement across the zone exceeded about 1.5 m. A remarkable feature of this event was its location in an intensively farmed landscape, where a multitude of straight markers, such as fences, roads and ditches, allowed precise measurements of offsets, and permitted well-defined limits to be placed on the length and widths of the surface rupture deformation.

Images, Alexander Turnbull Library

A weather map of New Zealand is shown beset with dreadful weather conditions that include cyclones and lightning strikes; there is also earthquake activity around the Canterbury region. Text reads 'Was it something we said?...' Refers to the Canterbury earthquake of 4th September 2010 and the spring storms with wind, rain and snow in recent weeks. Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

A weather map of New Zealand is shown beset with dreadful weather conditions that include cyclones and lightning strikes; there is also earthquake activity round the Canterbury region. Text reads 'Mother Nature's wild child... but who's the father?' Refers to the Canterbury earthquake of 4th September 2010 and the spring storms with wind, rain and snow in recent weeks. Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

A weather map of New Zealand is shown beset with dreadful weather conditions that include cyclones and lightning strikes; there is also earthquake activity around the Canterbury region. Text reads 'Now all we need is a plague of locusts...' Refers to the Canterbury earthquake of 4th September 2010 and the spring storms with wind, rain and snow in recent weeks. Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

'Cappuccino dreams'. Christchurch mayoral candidates Jim Anderton and incumbent mayor Bob Parker tell constituents that they will get respectively more transparency in 'financial dealings' and in 't-shirts'. As the earthquake strikes they continue their electioneering until they are told to 'clear orf' because 'these frames lack substance'. A front-end loader begins to dismantle the structure from which they are speaking. Refers to the local body elections to take place 9th October and the Canterbury earthquake of 4th September. Published in the Presto Quantity: 1 digital cartoon(s).

Audio, Radio New Zealand

Mention the words "earthquake" in the same brief as "remediation" and it's enough to strike fear in the hearts of all New Zealanders, particularly those in Christchurch and other earthquake prone areas of the country. Now we find the chances of the ground shaking more violently in a quake is much higher than previously thought for large parts of the country. In some places it has doubled or even trebled. What are the ramifications of this new found knowledge? Joining the show to discuss is Michelle Grant, President of the Structural Engineering Society New Zealand, and Matt Gerstenberger, Principal Scientist and Seismologist at GNS Science

Research papers, University of Canterbury Library

The Stone Jug Fault (SJF) ruptured during the November 14th, 2016 (at 12:02 am), Mw 7.8 Kaikōura Earthquake which initiated ~40 km west-southwest of the study area, at a depth of approximately 15 km. Preliminary post-earthquake mapping indicated that the SJF connects the Conway-Charwell and Hundalee faults, which form continuous surface rupture, however, detailed study of the SJF had not been undertaken prior to this thesis due to its remote location and mountainous topography. The SJF is 19 km long, has an average strike of ~160° and generally carries approximately equal components of sinistral and reverse displacement. The primary fault trace is sigmoidal in shape with the northern and southern tips rotating in strike from NNW to NW, as the SJF approaches the Hope and Hundalee faults. It comprises several steps and bends and is associated with many (N=48) secondary faults, which are commonly near irregularities in the main fault geometry and in a distributed fault zone at the southern tip. The SJF is generally parallel to Torlesse basement bedding where it may utilise pre-existing zones of weakness. Horizontal, vertical and net displacements range up to 1.4 m, with displacement profiles along the primary trace showing two main maxima separated by a minima towards the middle and ends of the fault. Average net displacement along the primary trace is ~0.4m, with local changes in relative values of horizontal and vertical displacement at least partly controlled by fault strike. Two trenches excavated across the northern segment of the fault revealed displacement of mainly Holocene stratigraphy dated using radiocarbon (N=2) and OSL (N=4) samples. Five surface-rupturing paleoearthquakes displaying vertical displacements of <1 m occurred at: 11,000±1000, 7500±1000, 6500±1000, 3500±100 and 3 (2016 Kaikōura) years BP. These events produce an average slip rate since ~11 ka of 0.2-0.4 mm/yr and recurrence intervals of up to 5500 years with an average recurrence interval of 2750 yrs. Comparison of these results with unpublished trench data suggests that synchronous rupture of the Hundalee, Stone Jug, Conway-Charwell, and Humps faults at ~3500 yrs BP cannot be discounted and it is possible that multi-fault ruptures in north Canterbury are more common than previously thought.