A very large earthquake in the central North Island could trigger a big lahar from Mt Ruapehu. In the recent past it's been eruptions that have led to lahars on the mountain. But scientists from Canterbury University have checking what else might cause cause mud and debris to spew out of the crater lake.
A photograph captioned by BeckerFraserPhotos, "A pile of bricks which have crumbled from a wall and landed on a digger at a demolition on Lichfield Street. This is a result of the 23 December 2011 earthquake".
A photograph of the Excelsior Sports Bar building shortly after the 22 February 2011 earthquake. Bricks from the walls above have crumbled and fallen to the street, taking the awning with it. People can be seen below, examining the building and attempting to leave the central city.
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Photograph captioned by BeckerFraserPhotos, "The BNZ building on Armagh Street with the PWC building under construction and Copthorne Hotel being demolished behind. The Forsyth Barr building can also be seen".
A photograph captioned by BeckerFraserPhotos, "The Octagon Live Restaurant, formerly the Trinity Congregational Church, with the recent damage to the Rose Window from the 23 December 2011 aftershock".
A photograph of street art on the wall of the Calendar Girls building on Hereford Street. The artwork is by Australian artist Seb Humphreys, who works under the name 'Order 55'.
A pile of rubble on the corner of Manchester and Worcester Streets. In the background, the Design and Arts College and the Heritage Hotel can be seen.
Photograph captioned by BeckerFraserPhotos, "The remains of SBS House, on the south-east corner of Worcester and Manchester Streets. The Octagon Live is behind".
Photograph captioned by BeckerFraserPhotos, "Forsyth Barr Building on the corner of Colombo and Armagh Streets with PricewaterhouseCoopers Building to the left and Marque Hotel in the distance".
A photograph taken from the top of the BNZ building. The photograph is captioned by BeckerFraserPhotos, "Lunchtime in the Square - high-vis jackets, hard hats and boots are mandatory for everyone inside the cordon".
Photograph captioned by BeckerFraserPhotos, "The reverse side of the facade of the New Excelsior Backpackers. The facade will be retained - you can see how it is tied to the containers".
A photograph captioned by BeckerFraserPhotos, "The basement of the Louis Vuitton Building on the corner of Colombo Street and Cathedral Square, exposed now the building has been demolished. Cathedral Square can be seen in the background".
An aerial photograph of the Forsyth Bar building near Victoria Square. The photograph is captioned by BeckerFraserPhotos, "The Forsyth Barr building at 764 Colombo Street, with Victoria Square behind. This building is staying".
A plaque on the side of the Edmonds Band Rotunda on Cambridge Terrace. The plaque reads, "This rotunda shelter and circular seat were presented by T.J.Edmonds to celebrate fifty years of residence in Christchurch 26th September 1929".
Photograph captioned by BeckerFraserPhotos, "Damaged pavement in the alley between the Salvation Army Citadel and the Crowne Plaza on Durham Street. The paving tiles have separated in a pattern reminiscent of a zip".
A montage of photographs of the creation of the installation 'Tonic'. The installation is part of the LUXCITY event. Tutors: Annabel Pretty, Cesar Wagner, Peter McPherson
A photograph of a shipping container suspended from a crane. The photograph is captioned by BeckerFraserPhotos, "The container is being placed against the end of the building being demolished to protect the building beneath it from falling debris".
A close-up photograph of a sign about the Fisher's Building, with the words, "Making our mark. An architect's vision contributes to a transformation of the commercial heart of our city. Whether a building survives or becomes just a memory is part of the continually changing Central City. Fisher's Building".
A PDF copy of pages 12-13 of the book Christchurch: The Transitional City Pt IV. The pages document the transitional project 'Tati/Playtime'. Photos: Barnaby Bennett
A photograph of an installation that forms part of the '60 Lights Market' at the LUXCITY event. Coordinators: Jeongbin Ok, Tiago Rorke, Jonathan Coates; student: Tom Hall
A photograph of crowds at the LUXCITY event. The photograph shows an installation on Worcester Street, with the new Press building in the background. The installation is titled "Murmur".
A PDF copy of pages 76-77 of the book Christchurch: The Transitional City Pt IV. The pages document the transitional project 'Bag-O-Love'. Photo: Reuben Woods
A photograph of members of the Wellington Emergency Management Office Emergency Response Team talking to a member of the New South Wales USAR team in Latimer Square.
A photograph of the USAID headquarters in Latimer Square. A sign above the entrance to the camp reads, "Must wash hands". Whiteboards placed around the entrance read, "Please wash hands before taking food".
A photograph captioned by BeckerFraserPhotos, "The Government Life Building in Cathedral Square, with the Grant Thornton and Clarendon Tower buildings visible behind. All of these buildings are expected to be demolished".
A photograph of a Singapore Rescue Team tent set up in Latimer Square after the 22 February 2011 earthquake. In the foreground there is a group of tents, cordoned off with tape and plastic mesh.
A photograph of members of the Wellington Emergency Management Office Emergency Response Team examining the Southern Finance Ltd building. Silt from liquefaction covers part of the footpath and road.
A photograph of the southern end of the Provincial Chambers Building taken through a car window. The roof and the wall of the building have collapsed on the right.
Photograph captioned by BeckerFraserPhotos, "A view looking south from Kilmore Street, the Ernst and Young building on the left, PricewaterhouseCoopers building centre left, Forsyth Barr building centre right, and the Copthorne on the right".