Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 

New research examines little known Hauraki seismic zone

7 April 2017

New research examines little known Hauraki seismic zone


The Earthquake Commission is funding research to improve the understanding of known and potential faults in the Hauraki Rift; a geological area running through the Auckland and Waikato regions including the Hauraki Gulf, Firth of Thames and Hauraki Plains.

The University of Auckland’s Dr Jennifer Eccles is leading an international team of researchers who are focused on understanding the dynamics of this slow moving seismic structure with a $70,000 grant from EQC’s Biennial Grants Programme and a $75,000 EQC University Post-Graduate Grant Programme.

“The Hauraki Rift is not as active as areas around Canterbury and the north of the South Island that have suffered recent large earthquakes. However the Christchurch earthquakes in particular highlighted the need to research and better understand slower moving geological structures that have the potential to pose a significant natural hazard risk to high population areas and infrastructure.,” says Dr Eccles.

“This particular geological structure contains the active Kerepehi Fault that runs between Matamata and north towards Waiheke Island, and is only 30 kilometres east of Auckland and Hamilton.”

Dr Eccles says that the projects have identified a gap in New Zealand’s geological knowledge because the Hauraki Rift is not well understood and there has not been significant scientific research into this seismic area since the 1980’s.

“We will be working to better understand the geology and activity of the Kerepehi Fault. Also to identify blind faults or activity on mapped faults currently deemed inactive across the Hauraki Plains and Auckland City, and contribute to New Zealand and international earthquake research.”

The team are using regional GPS measurements to monitor how the region is stretching through time and are building a model of the ground to understand its properties and composition from using reflected seismic waves.

“These are waves of vibrational energy that travel through the Earth’s layers and interact with the subsurface. These vibrations are recorded and measured at various locations and depths to build an understanding of faults at depth including possible fault lines previously undetected.

“These projects will improve the scientific community’s knowledge of the Kerepehi Fault and the wider Hauraki Rift and what seismic movement is taking place within this area. They also contribute to building a bigger picture of seismic activity in New Zealand and helps our communities become more prepared for and resilient to a natural disaster event,” says Dr Eccles.

ends

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Superu Report: Land Regulation Drives Auckland House Prices

Land use regulation is responsible for up to 56 per cent of the cost of an average house in Auckland according to a new research report quantifying the impact of land use regulations, Finance Minister Steven Joyce says. More>>

ALSO:

Fletcher Whittled: Fletcher Dumps Adamson In Face Of Dissatisfaction

Fletcher Building has taken the unusual step of dumping its chief executive, Mark Adamson, as the company slashed its full-year earnings guidance and flagged an impairment against Australian assets. More>>

ALSO:

No More Dog Docking: New Animal Welfare Regulations Progressed

“These 46 regulations include stock transport, farm husbandry, companion and working animals, pigs, layer hens and the way animals are accounted for in research, testing and teaching.” More>>

ALSO:

Employment: Most Kiwifruit Contractors Breaking Law

A Labour Inspectorate operation targeting the kiwifruit industry in Bay of Plenty has found the majority of labour hire contractors are breaching their obligations as employers. More>>

ALSO:

'Work Experience': Welfare Group Opposes The Warehouse Workfare

“This programme is about exploiting unemployed youth, not teaching them skills. The government are subsidising the Warehouse in the name of reducing benefit dependency,” says Vanessa Cole, spokesperson for Auckland Action Against Poverty. More>>

ALSO:

Internet Taxes: Labour To Target $600M In Unpaid Taxes From Multinationals

The Labour Party would target multinationals operating in New Zealand to ensure they don't avoid paying tax if it wins power and is targeting $600 million over three years through a "diverted profits tax," says leader Andrew Little. More>>

ALSO: