1. Centre for Energy Geoscience, School of Earth Sciences, The University of Western Australia, Australia
2. School of Physics and Astrophysics, The University of Western Australia, Australia
3. Now at Department of Geosciences, University of Texas at Dallas, TX, United States of America
4. Now at Department of Geophysics, Colorado School of Mines, CO, United States of America
5. Faculty of Mechanical Engineering, University of Campinas, Brazil