Next-generation seismic model of the Australian crust from synchronous and asynchronous ambient noise imaging

Yunfeng Chen (), Erdinc Saygin, Brian Kennett, Mehdi Tork Qashqai, Juerg Hauser, David Lumley and Mike Sandiford
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Yunfeng Chen: Zhejiang University
Erdinc Saygin: CSIRO
Brian Kennett: Australian National University
Mehdi Tork Qashqai: CSIRO
Juerg Hauser: CSIRO
David Lumley: University of Texas at Dallas
Mike Sandiford: University of Melbourne

Nature Communications, 2023, vol. 14, issue 1, 1-13

Abstract: Abstract The proliferation of seismic networks in Australia has laid the groundwork for high-resolution probing of the continental crust. Here we develop an updated 3D shear-velocity model using a large dataset containing nearly 30 years of seismic recordings from over 1600 stations. A recently-developed ambient noise imaging workflow enables improved data analysis by integrating asynchronous arrays across the continent. This model reveals fine-scale crustal structures at a lateral resolution of approximately 1-degree in most parts of the continent, highlighted by 1) shallow low velocities (

Date: 2023
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DOI: 10.1038/s41467-023-36514-z

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