Earthquake proneness

Jason Ingham has been investigating the failure of building stock during the Christchurch earthquake, in particular the fate of unreinforced masonry buildings.

### ODT Online Mon, 14 Feb 2011
Opinion: Taking masonry’s measure
By Jason Ingham
The significant damage caused by the Darfield Earthquake has focused attention firmly on buildings that may be at higher risk in an earthquake. The performance of unreinforced and retrofitted masonry buildings has been of particular interest and observations from the Darfield earthquake are extremely relevant to Dunedin, Queenstown, to all of New Zealand and to earthquake prone zones internationally.
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Jason Ingham, associate professor in the department of civil engineering, University of Auckland, and member of the New Zealand Society for Earthquake Engineering management committee. He will be presenting his findings at a seminar in Queenstown today, organised by NZSEE.


Monday 14 February 2011
Seismic Assessment & Improvement of Buildings & Foundations – Queenstown
This seminar will report on the findings from a six year study that acquired experimental information and developed techniques for performing detailed seismic assessment of buildings and their foundations, and associated methods for improving their performance if assessed to be seismically deficient.
More information (via IPENZ)

Posted by Elizabeth Kerr


Filed under Architecture, Construction, Design, Economics, Geography, Heritage, Politics, Project management, Site, Town planning, Urban design

2 responses to “Earthquake proneness

  1. Elizabeth

    ### ODT Online Fri, 25 Feb 2011
    Engineers must decide buildings’ fate
    By David Loughrey
    The future of buildings in the Christchurch central business district remains unclear. Engineers said that area was unable to be entered, and were concentrating on making sure residents could safely use their homes, even if only temporarily. But once engineers do get in, they will be looking for “large distortions” in building structures that will indicate whether or not buildings could be saved.

    Asked about the future of the buildings, Dunedin structural engineer Lou Robinson said if they could be secured in such a way that they were safe to enter and walk past it was likely they could be saved. Otherwise, it was likely they would have to be demolished.

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  2. Elizabeth

    The U.S. Geological Survey classified the quake as Alert Level Orange, the second-most serious category on its four-level scale. Earthquakes in that range lead to estimated losses between $100 million and $1 billion.

    ### August 25, 2011 8:05 AM
    Are East Coast’s older buildings safe in quakes?
    By Chip Reid – CBS News
    The damage left behind by the earthquake that hit the East Coast on Tuesday is worse than expected. Now it looks like repair costs could be in the millions. A day after the East Coast’s strongest earthquake in 67 years, inspectors assessed the damage and found that most problems were minor. But the shaking raised questions about whether this part of the country, with its older architecture and inexperience with seismic activity, is prepared for a truly powerful quake. The 5.8 magnitude quake felt from the southern states north to Canada – the strongest on the East Coast since World War II – prompted swift inspections of many structures Wednesday, including bridges and nuclear plants. An accurate damage estimate could take weeks, if not longer. And many people will not be covered by insurance. (CBS/AP)
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