A review of the week's news including... National MP Todd Barclay falls on his sword while Labour is in damage control, the decision to not prosecute the Pike River Mine CEO is to be contested in the Supreme Court, the lawyer for Akshay Chand says she sought bail on his behalf believing his mother and aunt would monitor his every movement, The Education Ministry is forced to apologise for its flawed handling of school closures and mergers after the 2011 Canterbury earthquake, The Health Minister is forced to defend his embattled Ministry following a major budget blunder, employment lawyers aren't surprised another health sector group is taking a pay equity claim, Ministry for Primary Industries officials come under fire at a packed Stewart Island public meeting on the cull of the island's farmed oysters, it's Plan B for a crowd funded initiative that wants to take control of Dunedin's Cadbury factory and All Black great Sir Colin 'pinetree' Meads has been immortalised in bronze.
The magnitude Mw7.8 ‘Kaikōura’ earthquake occurred shortly after midnight on 14 November 2016. This paper presents an overview of the geotechnical impacts on the South Island of New Zealand recorded during the postevent reconnaissance. Despite the large moment magnitude of this earthquake, relatively little liquefaction was observed across the South Island, with the only severe manifestation occurring in the young, loose alluvial deposits in the floodplains of the Wairau and Opaoa Rivers near Blenheim. The spatial extent and volume of liquefaction ejecta across South Island is significantly less than that observed in Christchurch during the 2010-2011 Canterbury Earthquake Sequence, and the impact of its occurrence to the built environment was largely negligible on account of the severe manifestations occurring away from the areas of major development. Large localised lateral displacements occurred in Kaikōura around Lyell Creek. The soft fine-grained material in the upper portions of the soil profile and the free face at the creek channel were responsible for the accumulation of displacement during the ground shaking. These movements had severely impacted the houses which were built close (within the zone of large displacement) to Lyell Creek. The wastewater treatment facility located just north of Kaikōura also suffered tears in the liners of the oxidation ponds and distortions in the aeration system due to ground movements. Ground failures on the Amuri and Emu Plains (within the Waiau Valley) were small considering the large peak accelerations (in excess of 1g) experienced in the area. Minor to moderate lateral spreading and ejecta was observed at some bridge crossings in the area. However, most of the structural damage sustained by the bridges was a result of the inertial loading, and the damage resulting from geotechnical issues were secondary.
