Rapid Determination of Earthquake Sources in Australia. The Australasian region is at risk from both large earthquakes and tsunamis. Rapid and reliable determination of parameters such as depth and orientation of earthquake fault planes in real time is vital for an effective response. This project will greatly improve the quality of information inferred from seismic waveform data by using three-dimensional structural models of Earth and also provide valuable insight into the earthquake generatio ....Rapid Determination of Earthquake Sources in Australia. The Australasian region is at risk from both large earthquakes and tsunamis. Rapid and reliable determination of parameters such as depth and orientation of earthquake fault planes in real time is vital for an effective response. This project will greatly improve the quality of information inferred from seismic waveform data by using three-dimensional structural models of Earth and also provide valuable insight into the earthquake generation process. By comprehensively incorporating three-dimensional structural models in estimating earthquake sources, the project will be at the forefront of research worldwide. The science developed will underpin automated determination of characteristics of earthquakes and play a key part in efforts to mitigate the impact of tsunamis.Read moreRead less
Unveiling the fine structure of the Australian continent using ocean waves. This project aims to develop new methods to better image lithospheric and upper-mantle structures by using noise from ubiquitous ocean waves, and then use these methods to illuminate fine-scale lithospheric-asthenospheric structures in Australia, from the surface to the upper mantle. Imaging the Earth’s structure using seismic tomography is one of the most fundamental tasks of geoscience. Conventional earthquake-based se ....Unveiling the fine structure of the Australian continent using ocean waves. This project aims to develop new methods to better image lithospheric and upper-mantle structures by using noise from ubiquitous ocean waves, and then use these methods to illuminate fine-scale lithospheric-asthenospheric structures in Australia, from the surface to the upper mantle. Imaging the Earth’s structure using seismic tomography is one of the most fundamental tasks of geoscience. Conventional earthquake-based seismic tomography has difficulties in deciphering fine-scale lithospheric structures. The images from this project will provide a better understanding of the nature of intraplate earthquakes and volcanoes, and improve the assessment of intraplate seismic and volcanic hazards in Australia.Read moreRead less
New observational constraints on 2004-2007 rupture of the Sumatra megathrust. This project will develop innovative methods and generate new data for studying the rupture of giant subduction zone earthquakes and the generation of destructive tsunamis. This will lead to a better understanding of these phenomena that will enhance our ability to forecast, warn and map the hazards associated with them.
Add mountains and shake: plate boundary fault and earthquake patterns. This project aims to determine the fundamental physical processes that link topography, seismic shaking and volcanism to the evolution of seismogenic fault networks in obliquely convergent (transpressional) plate boundary settings. We will combine detailed field and remote sensing-based structural analyses in transpressional mountain belts with advanced laboratory analogue and numerical experiments to evaluate: 1) how bursts ....Add mountains and shake: plate boundary fault and earthquake patterns. This project aims to determine the fundamental physical processes that link topography, seismic shaking and volcanism to the evolution of seismogenic fault networks in obliquely convergent (transpressional) plate boundary settings. We will combine detailed field and remote sensing-based structural analyses in transpressional mountain belts with advanced laboratory analogue and numerical experiments to evaluate: 1) how bursts of strong seismic shaking perturb fault zone evolution through time; 2) the contribution of topography and gravitation loading to fault interactions and earthquake generation; and 3) feedbacks between fault network development, the spatial distribution of volcanic centres, seismic shaking and ore deposits.Read moreRead less
Down under down under: using multi-scale seismic tomography to image beneath Australia's Great Artesian Basin. Seismic arrays will be deployed in the Great Artesian Basin to image the crust and mantle using distant earthquake and ambient noise sources. This will answer fundamental questions about the tectonic evolution of eastern Australia and elucidate the structure of a region containing significant deep Earth resources.