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Community Fault Model

NZ-CFM V0.1; Sept 2019  New Zealand Community Fault Model v0.1, September 2019

New Zealand Community Fault Model v0.1, September 2019

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GNS is leading a community-driven project that pools the collective knowledge of the earth science community to develop a fault model for New Zealand which is open, updatable and available to everyone.

What is the NZ Community Fault Model?

The new Community Fault Model (CFM) will be a 3D geometrical representation of faults. Each fault will be associated with available movement information such as sense of slip, slip rake angle and slip rate.

The model could be used or adapted for many scientific and practical uses including hazards related research and applications.

Who is involved in developing the CFM?

We have brought together geologists and geophysicists from several disciplines and organisations to draw on this community’s wealth of knowledge. These scientists will help define the model, including limitations, and ensure it is fit-for-purpose for multiple needs.

Edgecumbe Fault rupture, 1987 Edgecumbe earthquake. Photo by Lloyd Homer, GNS Science.Caption: Edgecumbe Fault rupture, 1987 Edgecumbe earthquake. Photo by Lloyd Homer, GNS Science.

Edgecumbe Fault rupture, 1987 Edgecumbe earthquake. Photo by Lloyd Homer, GNS Science.

We currently have a prototype model. A series of workshops (tentatively scheduled for July-August 2020) will be held to invite wider input from the earth science community so as to incorporate additional geological fault knowledge and data leading to the release of Version 1.0.

We anticipate continual evolution of the CFM as new data and knowledge becomes available. It is our expectation that progressively refined and updated versions of the CFM will be developed, documented and released.

How will the CFM be used?

Our goal is to have all documented and peer-reviewed versions of the CFM openly available online to anyone who may wish to use it (e.g. the earth science, engineering, seismic and insurance communities). This includes people who haven’t participated in its development.

The uses of the model are varied. We anticipate that subsequent versions of the model will contain multiple fault model representations and parameterisations with varying levels of detail. How this is done will be decided by the community involved.

Awatere Fault, Awatere Valley, source of the large 1848 earthquake. Photo by Lloyd Homer, GNS Science

Potential research applications

Find out more  

Contact us by email if you would like to get involved in this CFM project, or just to find out more.

Current work on the CFM
Work in progress, milestones, updates.

CFM workshops
Upcoming and past workshops – agendas, presentations, papers.

References and related projects
Additional references, including links to international projects.