Working groups and governance

On this page:

• Strategic Stakeholder Group
• Project Steering Group
• Technical Advisory Group
• Core NSHM
• Seismicity Rate Models Working Group
• Ground Motion Characterisation Models Working Group
• Service Delivery Working Group

GOVERNANCE

Strategic Stakeholder Group

This group is made up of senior NSHM stakeholders from across the New Zealand Government and private sector. Its role is to develop a strategy to secure funding for ongoing development of the NSHM beyond the current revision project; develop a more unified understanding of the use of seismic hazard information across government and private sector stakeholders; and receive regular progress updates on the NSHM revision project to increase stakeholder engagement and uptake. It meets quarterly.

Project Steering Group

This group is chaired by the project sponsor at GNS Science, who is accountable for project success. It has MBIE and EQC representatives. It monitors progress against agreed deliverables, budget and timeframe of the NSHM revision project. It has an agreed Terms of Reference and meets monthly.

The Project Steering Group comprises:

• Gill Jolly - GNS Science
• Dave Robson - MBIE
• Jo Horrocks - EQC

Technical Advisory Group

The Technical Advisory Group (TAG) includes New Zealand and international experts, both in the science of seismic hazard model development and in the technical needs of the end-users of the NSHM. Its role is to provide a detailed technical review to ensure the NSHM is best practice science and provides useful outputs to end-users. It must also provide confidence in the final NSHM through a participatory review process. It has an agreed Terms of Reference and meets two-monthly.

The TAG members are:

WORKING GROUPS

Core NSHM

This working group is primarily responsible for deciding the direction of the National Seismic Hazard Model framework, with input and advice from the Technical Advisory Group (TAG), and for assimilating the outputs of all other working groups into the final project deliverable.

The Core NSHM team comprises:

• Matt Gerstenberger (Project Lead) – GNS Science
• Elizabeth Abbott – GNS Science
• Anna Kaiser – GNS Science
• Andy Nicol – University of Canterbury
• Mark Stirling – University of Otago
• Kiran Thingbaijam – GNS Science
• Russ Van Dissen – GNS Science
• Chris Van Houtte – GNS Science

Seismicity Rate Models Working Group (SRM)

The Seismicity Rate Model (SRM) Working Group is comprised of New Zealand and international scientists from GNS, universities, consultancies, and other Crown Research Institutes. This working group is responsible for the development of multiple models that will represent the magnitudes, locations, and rates of potential future earthquakes. This work, while still being prioritised, will likely cover the following topics to varying extents:

• Use and development of the Community Fault Model
• Development of alternative fault models
• Fault segmentation options, earthquake source recurrence options, UCERF, etc.
• Incorporation of geodesy: strain rate and hybrid modelling
• Revision of the earthquake catalogue
• Options for declustering earthquakes
• Distributed hybrid modelling
• The Hikurangi Subduction Zone, including magnitude-frequency distribution and segmentation
• Scaling relationships.

The Seismicity Rate Model Working Group meets weekly on Wednesday @ 2pm. Please get in touch if you would like to attend.

Here is a list of SRM members.

Ground Motion Characterisation Models Working Group (GMCM)

The Ground Motion Characterisation Models Working Group (GMCM) is comprised of New Zealand and international scientists from GNS Science, universities, consultancies, and other Crown Research Institutes. This working group is responsible for developing and determining the use of multiple ground motion models (GMM) for estimating ground shaking based on the occurrence of any particular earthquake source as modelled by the SRM working group. This work, while still being prioritised, will likely cover the following topics to varying extents:

• Modelling epistemic uncertainty
• Revision of the New Zealand Strong Motion Database
• Site classification, including updating the national Vs30 model and application of Vs30 in hazard modelling
• Role of simulations, model validation, etc.
• Modelling shaking from subduction zone earthquakes (e.g. Hikurangi, NGA Subduction)
• Basin effects (e.g. Wellington Basin, national basin framework) and use of Z1.0, Z2.5, etc.

The Ground Motion Characterisation Model Working Group meets weekly on Friday @ 11am. Please get in touch if you would like to attend.

Here is a list of GMCM members.

Service Delivery Working Group

This working group is focused on the delivery of the NSHM in a way that is transparent and openly available to the end-user community. The end goal is for providing the NSHM and results in a manner that is thoroughly documented, fit-for-purpose, open-source and web-based.

To ensure usability and uptake, this group is also responsible for soliciting end-user input across the entire model development process, including through the Technical Advisory Group.

The Service Delivery Working Group meets weekly on Thursday @ 4pm. Please get in touch if you would like to attend.

Here is a list of the working group members.

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