National Chung Cheng University, National Chung Cheng University, Department of Science and Technology, Philippines (DOST) - Philippine Institute of Volcanology and Seismology, University of the Philippines Diliman, University of the Philippines Diliman, affiliation not provided to SSRN, National Chung Cheng University, University of the Philippines Diliman and Sorbonne University - École Normale Supérieure