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Images for 7.1; more images...

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Damage to St. Mary's Anglican Church Timaru resulting from 7.1 Magnitude Earthquake centred near Darfield. (L to R): Builder Kevin Deam and St. Mary's parishioner Craig Perkins are hoisted by crane to remove the last damaged spire from the church tower".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Damage to St. Mary's Anglican Church Timaru resulting from 7.1 Magnitude Earthquake centred near Darfield . The final damaged spire is removed from the church tower by crane, secured by (L to R): St. Mary's parishioner Craig Perkins and builder Kevin Deam".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Damage to St. Mary's Anglican Church Timaru resulting from 7.1 Magnitude Earthquake centred near Darfield. (L to R): Builder Kevin Deam and St. Mary's parishioner Craig Perkins are moved into position by crane to remove damaged spire-tops from the church tower".

Research papers, The University of Auckland Library

The Catholic Cathedral is classified as a category 1 listed heritage building constructed largely of unreinforced stone masonry, and was significantly damaged in the recent Canterbury earthquakes of 2010 and 2011. In the 2010 event the building presented slight to moderta damage, meanwhile in the 2011 one experienced ground shaking in excess of its capacity leading to block failures and partial collapse of parts of the building, which left the building standing but still posing a significant hazard. In this paper we discuss the approach to develop the earthquake analysis of the building by 3D numerical simulations, and the results are compared/calibrated with the observed damage of the 2010 earthquake. Very accurate records were obtained during both earthquakes due to a record station located least than 80 m of distance from the building and used in the simulations. Moreover it is included in the model the soil structure interaction because it was observed that the ground and foundation played an important role on the seismic behavior of the structure. A very good agreement was found between the real observed damage and the nonlinear dynamic simulations described trough inelastic deformation (cracking) and building´s performance.

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Damage to St. Mary's Anglican Church Timaru resulting from 7.1 Magnitude Earthquake centred near Darfield . (L to R): St. Mary's parishioner Craig Perkins and builder Kevin Deam are moved into position by crane to remove the last damaged spire from the church tower".

Images, UC QuakeStudies

Personnel from the USAID Disaster Assistance Response Team (DART) standing in Firefighters Reserve, in preparation for the two minutes of silence to honour the people who lost their lives in the 22 February 2011 earthquake. Just out of the picture is a sculpture fashioned from 5 tonnes of structural steel salvaged from the site of the World Trade Centre following their collapse on 11 September 2001 in terrorist attacks on New York City. The sculpture is now used as a tribute to firefighters in New Zealand.

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Prime Minister John Key, centre, visited Christchurch after its 7.1 magnitude earthquake at 04:35 Saturday morning. Mayor Bob Parker, facing at left, took him on a tour of the city which was punctuated by a fire breaking out in a building on Worcester Street".

Images, eqnz.chch.2010

A view after the 7.1 magnitude earthquake in Christchurch. Victoria Street. So sad to see history die - both buildings and business. Sign on the back wall says, "You gotta be there Christchurch" - sadly ironic! Given a bit of a HDR process to add some of what I was "feeling" at the time.

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Prime Minister John Key, right, visited Christchurch after its 7.1 magnitude earthquake at 04:35 Saturday morning. Mayor Bob Parker, left, took him on a tour of the city which was punctuated by a fire breaking out in a building on Worcester Street. The tour party watches the fire".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Prime Minister John Key, left, visited Christchurch after its 7.1 magnitude earthquake at 04:35 Saturday morning. Mayor Bob Parker, centre, took him on a tour of the city which was punctuated by a fire breaking out in a building on Worcester Street. The tour party watches the fire".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Prime Minister John Key, centre, visited Christchurch after its 7.1 magnitude earthquake at 04:35 Saturday morning. Mayor Bob Parker, at right, took him on a tour of the city which was punctuated by a fire breaking out in a building on Worcester Street. MP John Carter, front left".

Images, eqnz.chch.2010

The old Christchurch Railway Station Clock Tower was damaged during the 7.1 magnitude quake on 4 September 2010 and was braced by the wooden sleeve until repaired. However, although the sleeve did its job during the 6.3 magnitude quake on 22 February 2011, the lower part of the tower started to break away.

Research papers, University of Canterbury Library

A team of earthquake geologists, seismologists and engineering seismologists from GNS Science, NIWA, University of Canterbury, and Victoria University of Wellington have collectively produced an update of the 2002 national probabilistic seismic hazard (PSH) model for New Zealand. The new model incorporates over 200 new onshore and offshore fault sources, and utilises newly developed New Zealand-based scaling relationships and methods for the parameterisation of the fault and subduction interface sources. The background seismicity model has also been updated to include new seismicity data, a new seismicity regionalisation, and improved methodology for calculation of the seismicity parameters. Background seismicity models allow for the occurrence of earthquakes away from the known fault sources, and are typically modelled as a grid of earthquake sources with rate parameters assigned from the historical seismicity catalogue. The Greendale Fault, which ruptured during the M7.1, 4 September 2010 Darfield earthquake, was unknown prior to the earthquake. However, the earthquake was to some extent accounted for in the PSH model. The maximum magnitude assumed in the background seismicity model for the area of the earthquake is 7.2 (larger than the Darfield event), but the location and geometry of the fault are not represented. Deaggregations of the PSH model for Christchurch at return periods of 500 years and above show that M7-7.5 fault and background source-derived earthquakes at distances less than 40 km are important contributors to the hazard. Therefore, earthquakes similar to the Darfield event feature prominently in the PSH model, even though the Greendale Fault was not an explicit model input.

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Earthquake Commission Public Meeting at the SBS Events Centre. Left to right: Rangitata MP Jo Goodhew and Reid Stiven, representing the Earthquake Commission (EQC), listen to a query during the meeting, which was held to inform the public about making claims to the EQC relating the 7.1 magnitude earthquake on 4 September".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Earthquake Commission Public Meeting at the SBS Events Centre. Reid Stiven, representing the Earthquake Commission (EQC), responds to a query during the meeting, which was held to inform the public about making claims to the EQC relating the 7.1 magnitude earthquake on 4 September. The meeting was hosted by Rangitata MP Jo Goodhew (left)".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Prime Minister John Key, right, visited Christchurch after its 7.1 magnitude earthquake at 04:35 Saturday morning. Mayor Bob Parker, at front left, took him on a tour of the city which was punctuated by a fire breaking out in a building on Worcester Street. The tour party watches the fire".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Prime Minister John Key, right, visited Christchurch after its 7.1 magnitude earthquake at 04:35 Saturday morning. Mayor Bob Parker, at front left, took him on a tour of the city which was punctuated by a fire breaking out in a building on Worcester Street. The tour party watches the fire".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Prime Minister John Key, centre, visited Christchurch after its 7.1 magnitude earthquake at 04:35 Saturday morning. Mayor Bob Parker took him on a tour of the city which was punctuated by a fire breaking out in a building on Worcester Street. MP John Carter, and Key look at the damage".