Precursory signatures in the visibility graph analysis of seismicity: An application to the Kachchh (Western India) seismicity |
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| Institution: | 1. National Research Council, Institute of Methodologies for Environmental Analysis, C.da S.Loja, 85050 Tito, Italy;2. ARPAB, 85100 Potenza, Italy;3. Institute of Seismological Research, Gandhinagar, India;4. Indian School of Mines Dhanbad, Jharkhand, India;1. Chemical & Materials Engineering Department, University of Alberta, Edmonton, Alberta T6G 2V4, Canada;2. Department of Instrumentation Engineering, MIT Campus, Anna University, Chennai 600 044, India;1. Department of Earth and Space Science and Engineering, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada;2. Shanghai Liaoyuan Education Group, 150 Pingyang Road, Minhang District, Shanghai 201102, China;3. Department of Physics and Astronomy, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada;1. Institute of Geophysics, China Earthquake Administration, Beijing 100081, China;2. Institute of Earthquake Prediction, Beijing University of Technology, Beijing 100124, China;3. Institute of Space Science, National Central University, Jhongli 320, Taiwan;4. Center for Space and Remote Sensing Research, National Central University, Jhongli 320, Taiwan;5. Department of Earth and Environmental Sciences, National Chung Cheng University, Chiayi 621, Taiwan;1. College of Information and Control Engineering, China University of Petroleum, Qingdao 266580, China;2. Electronics and Computer Science, University of Southampton, Southampton SO17 1BJ, UK;3. Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia |
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| Abstract: | The Visibility Graph (VG) method maps time series into networks or graphs, converting dynamical properties of time series in topological properties of networks. The VG method was applied to the aftershock depleted catalogue of the Kachchh Gujarat (Western India) seismicity from 2003 to 2012, in order to identify possible precursory signatures in the pattern of the VG parameters. The k–M slope (the slope of the line fitting the relationship between the magnitude of the events and their connectivity degrees) seems to sharply increase significantly before the occurrence of the largest shocks (M ? 4.5) of the sequence. |
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| Keywords: | Visibility graph Earthquakes Kachchh Precursors |
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