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Remote Sens. 2018, 10(8), 1311; https://doi.org/10.3390/rs10081311

The Causative Fault of the 2016 Mwp 6.1 Petermann Ranges Intraplate Earthquake (Central Australia) Retrieved by C- and L-Band InSAR Data

Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, 00143 Rome, Italy
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Received: 26 June 2018 / Revised: 27 July 2018 / Accepted: 16 August 2018 / Published: 20 August 2018
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Abstract

On 21 May 2016, an Mwp 6.1 earthquake occurred along the Petermann Ranges in Central Australia. Such a seismic event can be classified as a rare intraplate earthquake because the affected area presents low seismicity, being at the center of the Indo-Australian plate. Also, the architecture and kinematics of shear zones in the Petermann Orogen are largely unknown. We used Sentinel-1 C-band descending data and ALOS-2 L-band ascending data to constrain the causative fault. Our analysis revealed that the earthquake nucleated along an unmapped secondary back-thrust of the main feature of the area, namely the Woodroffe thrust. View Full-Text
Keywords: InSAR; Sentinel-1; ALOS-2; Australia; intraplate earthquake; source modeling; Petermann Ranges Orogen; Woodroffe thrust InSAR; Sentinel-1; ALOS-2; Australia; intraplate earthquake; source modeling; Petermann Ranges Orogen; Woodroffe thrust
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Polcari, M.; Albano, M.; Atzori, S.; Bignami, C.; Stramondo, S. The Causative Fault of the 2016 Mwp 6.1 Petermann Ranges Intraplate Earthquake (Central Australia) Retrieved by C- and L-Band InSAR Data. Remote Sens. 2018, 10, 1311.

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