There are quite a few signs like this around Christchurch after the Quake. This is one of them. Off shot to the right is a leveled patch of ground where the owners furniture restoration shop used to be. Twitter |
A preliminary report with findings from an internet survey conducted in the Christchurch region in the days following the Darfield earthquake. Includes eyewitness accounts of alleged earthquake precursors, such as earthquake lights, atmospheric changes, human responses and erratic animal behaviour. Quantity: 1 Electronic document(s). Provenance: The donor provided the following information: In connection with the M7.1 earthquake at Darfield, September 4th, we collected many accounts of alleged precursors via an internet survey. The resulting report is attached. It is an interesting historical document and you might consider adding it to the National LIbrary collection in some form. About 100 copies have been distributed to those who asked for it. There is no official printed form, it is digital only. The report forms the basis of a scientific paper in preparation but it is already apparent that much of the quoted accounts from survey respondents will have to be left out. The report itself will therefore remain a useful document. We plan to submit the scientific paper to Natural Hazards and Earth Science Systems in due course. The report and paper confirm that some real precursors do exist, but cannot be more specific about causes.
This paper presents site-specific and spatially-distributed ground-motion intensity estimates which have been utilized in the aftermath of the 2010-2011 Canterbury, New Zealand earthquakes. The methodology underpinning the ground motion intensity estimation makes use of both prediction models for ground motion intensity and its within-event spatial correlation. A key benefit of the methodology is that the estimated ground motion intensity at a given location is not a single value but a distribution of values. The distribution is comprised of both a mean and standard deviation, with the standard deviation being a function of the distance to nearby observations at strong motion stations. The methodology is illustrated for two applications. Firstly, maps of conditional peak ground acceleration (PGA) have been developed for the major events in the Canterbury earthquake sequence, which among other things, have been utilized for assessing liquefaction triggering susceptibility of land in residential areas. Secondly, the conditional distribution of response spectral ordinates is obtained at the location of the Canterbury Television building (CTV), which catastrophically collapsed in the 22 February 2011 earthquake. The conditional response spectra provide insight for the selection of ground motion records for use in forensic seismic response analyses of important structures at locations where direct recordings are absent.
The Canterbury earthquake is tipped to increase insurance premiums across the country.
Peraki Street in Kaiapoi, near the railway level crossing. The footpath is cracked and buckled.
Frances Adank is in St Albans where there are ruptured pipes and collapsed chimneys.
The badly-cracked facade of the Empire Hotel in Lyttelton is supported by large steel bracing.
The road outside the Kaiapoi Fire Station has slumped, and is cordoned off with safety tape.
The flood bank is being completely repaired on Raven Quay in Kaiapoi.
A cracked and slumped containing wall that is ready to collapse.
A damaged section of road is cordoned off with road cones on a residential street in Christchurch.
A large crack in the playing field in Porrit Park is surrounded by "volcanoes" of liquefaction silt.
Cordon fences surround the former Municipal Chambers on Worcester Street, where a small turret is protected by strapping.
A closed sign on shop window. Reflected in the window is building rubble across the street.
A photograph of a sign taped to the lamp post in front of Sonya Smith Atelier on Colombo Street. The sign reads, "Danger, keep out, restricted area". A yellow sticker on the front door also indicates that access to the building is restricted. A handwritten sign on the door reads, "Cannot open safely until structure is checked. Please ring Sonya if needing any more assistance. Sonya. Keep safe".
A photograph of a sign taped to the lamp post in front of Sonya Smith Atelier on Colombo Street. The sign reads, "Danger, keep out, restricted area". A yellow sticker on the front door also indicates that access to the building is restricted. A handwritten sign on the door reads, "Cannot open safely until structure is checked. Please ring Sonya if needing any more assistance. Sonya. Keep safe".
Furniture and equipment packed up ready for the University of Canterbury's E-Learning team's move to their temporary office in the James Hight building. The photographer comments, "First looks at our new temporary (maybe) office space. Our group will stay here until April or May 2011, then will move to another floor in the Central Library. Waiting for the movers. Our office is packed into orange crates, everything is labelled, where are the movers?".
Damage to the Knox Church. On the ground is the word 'Danger' spray-painted on the footpath.
A photograph of the cliff face along Wakefield Avenue in Sumner. It is showing signs of recent rockfall.
A photograph of the cliff face along Wakefield Avenue in Sumner. It is showing signs of recent rockfall.
A photograph of liquefaction near Anzac Drive in Bexley. UC Geology student Dan Hills is out collecting data.
The damaged Nortons building in Lyttelton is braced with wooden supports and the parapet tied to its roof with straps.
The Insurance Council is ranking the Canterbury earthquake as the world's third most expensive insured event this year.
The Insurance Council is ranking the Canterbury earthquake as the world's third most expensive insured event this year.
Former Radio New Zealander..John McDonald is at home in Cashmere and has lost his chimney.
A Christchurch MP is challenging earthquake-recovery agencies to clean up the suburb of Sydenham within a week.
Damage to a wharf in Lyttelton. The piles of the wharf are on a lean, as is the signal light.
A photograph of a hedge near Telegraph road in Darfield. The unevenness is a result of the earthquake.
A photograph of the cliff face along Wakefield Avenue in Sumner. It is showing signs of recent rockfall.
A photograph of the cliff face along Wakefield Avenue in Sumner. It is showing signs of recent rockfall.