Tuesday, April 23, 2024

Botanic Gardens plan to shake up liquefaction study

GNS Science hopes to learn more about liquefaction by installing a second seismograph in the Christchurch Botanic Gardens.

The Botanic Gardens already hosts a seismograph as part of the Magnetic Observatory, which has been supporting earth sciences since 1901.

GNS wants to install a second seismograph and has approached Christchurch City Council for permission to drill a new 20 to 30 metre deep borehole in the Botanic Gardens so it can place a sensor that will enable it to capture data about how the ground reacts in an earthquake.

“The objective of the second seismograph is to enable GNS, together with the University of Canterbury, to learn more about liquefaction,’’ says Botanic Gardens Director, Wolfgang Bopp.

“The resulting data will be of interest to the city, New Zealand and the wider world.’’

Mr Bopp says the Botanic Gardens has been identified as the best location to carry out the liquefaction study because of the availability of long-term data and the long-term protection offered by the land’s reserve status.

The Council will consider a report recommending that it give the permissions necessary to enable GNS to install the second seismograph when it meets on Wednesday 2 November.

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