A photograph of Treetech employees working to fell trees along the Avon River. Many trees suffered damage during the earthquake and were in danger of falling.
This study compiled and tabulated all relevant available information on earthquake sources (active faults) in Canterbury and mapped the fault locations onto 1:50,000 or 1:250,000 overlays on topographic maps (later digitised into the Environment Canterbury active faults database). The study also reviewed information on historic earthquakes, instrumental seismicity and paleoseismic studies and identified information gaps. It recommended an approach for a probabilistic seismic hazard analysis and development of earthquake scenarios. See Object Overview for background and usage information.
Object Overview of 'Earthquake hazard and risk assessment study Stage 1 Part B: Probabilistics seismic hazard assessment and earthquake scenarios for the Canterbury region, and historic earthquakes in Christchurch (Stirling et al, 1999).'
Object overview for 'Updated probabilistic seismic hazard assessment for the Canterbury region: addendum report'.
This report assesses issues and options for preparing an earthquake hazard and risk assessment programme for Canterbury. It outlines investigation options and associated costs in order to better understand Canterbury's earthquake hazard and risk. Although earthquake hazard and risk information needs and investigation priorities within Canterbury have changed over the past 15 years, the majority of the report’s recommended components have been undertaken to some degree either by Environment Canterbury or other organisations. See Object Overview for background and usage information.
This study led on from Earthquake hazard and risk assessment study Stage 1 Part A: Earthquake source identification and characterisation (Pettinga et al, 1998). It used the location and characteristics of active faults in the Canterbury region, and the historic record of earthquakes to estimate levels of ground shaking (MM intensity, peak ground acceleration and spectral accelerations) across Canterbury for different return periods. The study also provided earthquake scenarios for selected towns and cities in Canterbury, and undertook detailed investigations into the largest historic earthquakes in Christchurch and parts of the Canterbury region. See Object Overview for background and usage information.
This report was the first report in the district series, and has a different format to later reports. It includes all natural hazards, not only earthquake hazards. It describes earthquake, flooding, meteorological, landslide and coastal hazards within Hurunui district and gives details of historic events. It includes district-scale (1:250,000) active fault and flood hazard maps. The report describes an earthquake scenario for a magnitude 6.9 earthquake near Cheviot, as well as flooding, meteorological, landslide, coastal erosion, storm surge, and tsunami scenarios. See Object Overview for background and usage information.
This report describes the earthquake hazard in Kaikoura district and gives details of historic earthquakes. It includes district-scale (1:250,000) active fault, ground shaking zone, liquefaction and landslide susceptibility maps. The report describes an earthquake scenario for a magnitude 7.0-7.3 Hope Fault earthquake near Kaikoura, and a subsequent local tsunami.
This report describes the earthquake hazard in Ashburton district and gives details of historic earthquakes. It includes district-scale (1:250,000) active fault, ground shaking zone, liquefaction and landslide susceptibility maps. The report describes earthquake scenarios for a magnitude 7.0-7.3 earthquake on the Mt Hutt-Mt Peel Fault Zone and a magnitude 8 Alpine Fault earthquake. See Object Overview for background and usage information.
This report describes the earthquake hazard in Waimakariri district and gives details of historic earthquakes. It includes district-scale (1:250,000) active fault, ground shaking zone, liquefaction and landslide susceptibility maps. See Object Overview for background and usage information.
The previously unknown Greendale Fault ruptured to the ground surface, causing up to 5 metres horizontal and 1 metre vertical permanent offset of the ground, during the September 2010 Darfield (Canterbury) earthquake. Environment Canterbury commissioned GNS Science, with help from the University of Canterbury, to define a fault avoidance zone and to estimate the fault recurrence interval. There is little evidence for past movement on the fault in the past 16,000 years. However, because of the uncertainties involved, a conservative approach was taken and the fault has been categorised as a Recurrence Interval Class IV fault (a recurrence interval of between 5,000 and 10,000 years). A PhD study by a University of Canterbury student will work towards refining the Recurrence Interval Class over the next three years. Taking a risk-based approach, the Ministry for the Environment Active Fault Guidelines recommend that normal residential development be allowed within the fault avoidance zone for faults of this Recurrence Interval Class, but recommends restrictions for larger community buildings or facilities with post-disaster functions. The report is assisting Selwyn District Council in granting consents for rebuilding houses on or near the Greendale Fault that were damaged by permanent distortion of the ground due to the fault rupture in the September 2010 earthquake. The report provides specific recommendations for building on or close to the Greendale Fault, which are being implemented by Selwyn District Council. See Object Overview for background and usage information.
Object Overview of 'Assessment of active fault and fold hazards in the Twizel area, Mackenzie District, South Canterbury (Barrell, 2010).'
Object Overview of 'General distribution and characteristics of active faults and folds in the Ashburton District, mid-Canterbury (Barrell and Strong, 2009).'
A video about the New Zealand Army's delivery of chemical toilets to Christchurch residents without plumbing.
This study evaluated and recommended a methodology for undertaking an earthquake risk assessment for Christchurch, incorporating hazard analysis, inventory collection, damage modelling and loss estimation. See Object Overview for background and usage information.
This study updated the 1999 Earthquake hazard and risk assessment study Stage 1 Part B: Probabilistic seismic hazard assessment and Earthquake scenarios for the Canterbury region, and historic earthquakes in Christchurch report. It incorporated new fault data, a new distributed seismicity model and new methods for estimating Modified Mercalli intensities. See Object Overview for background and usage information.
Object Overview of 'Greendale Fault: investigation of surface rupture characteristics for fault avoidance zonation (Villamor et al, 2011).'
This report describes the earthquake hazard in Selwyn district and gives details of historic earthquakes. It includes district-scale (1:250,000) active fault, ground shaking zone, liquefaction and landslide susceptibility maps. The report describes earthquake scenarios for a magnitude 7.0-7.3 earthquake on the Porters Pass-Amberley Fault Zone and a magnitude 8 Alpine Fault earthquake. See Object Overview for background and usage information.
This report describes the earthquake hazard in Timaru district and gives details of historic earthquakes. It includes district-scale (1:250,000) active fault, ground shaking zone, liquefaction and landslide susceptibility maps. The report describes earthquake scenarios for a magnitude 7.0-7.3 earthquake on the Mt Hutt-Mt Peel Fault Zone and a magnitude 8 Alpine Fault earthquake. See Object Overview for background and usage information.
A video about the New Zealand Army's engineers working with the Christchurch City Council and community centres to secure buildings in Christchurch, set up bases in Latimer Square, and fix infrastructure such as Burwood Hospital's water supply.
A video about the HMNZS Canterbury which travelled to Wellington after the 22 February 2011 earthquake to refuel and gather supplies. The crew worked overnight to ensure that they could return to the people of Lyttelton as quickly as possible.
A photograph of the earthquake damage the brick fence of a house in Christchurch. Bricks from the broken fence have been stacked on the footpath in front. Liquefaction has been piled on the footpath and road cones placed in front.
A photograph of the earthquake damage to Wharetiki on Colombo Street. One of the walls has buckled and pulled away from the house. In the distance another house has a noticeable lean.
A photograph of emergency personnel in Cowles Stadium on Pages Road. The stadium was set up by Civil Defence as temporary accommodation for citizens displaced by the 4 September 2010 earthquake. In the foreground, the registration table has a Civil Defence sign reading, "Please register here".
A photograph of emergency management personnel inspecting a room inside a building. A section of the wall in front of them has been removed so that it is now possible to see into the adjoining room. The closest room is full of cardboard filing boxes.
A photograph of earthquake damage to a road in Christchurch. A hole has been filled with gravel, and a road cone placed on top. In the background, cracks and liquefaction can be seen.
A photograph of a large crack in the pavement of Gayhurst road revealing that the ground has subsided under the tarmac.
A photograph of a car on Montreal Street submerged in liquefaction. The liquefaction on the rest of the road has been cleared away leaving only the patch around and under the car.
A photograph of a hole in a road. Road cones and police tape have been placed around the hole as a warning to road users.
A photograph of the earthquake damage to a building on Lichfield Street. The brick wall of the top storey of the building has crumbled, exposing the wooden structure underneath. Many of the windows are broken.