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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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Remote Sens. 2018, 10(8), 1311; https://doi.org/10.3390/rs10081311
Received: 26 June 2018 / Revised: 27 July 2018 / Accepted: 16 August 2018 / Published: 20 August 2018
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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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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