En-Chao Yeh¹, Yung-An Liao¹, Ning-Shan Hui², Xiao Jun Peng³, Ping-Chuan Chen⁴, Yang-Hong Chen⁴, Gong-Ruei Ho⁵, Jian-Cheng Lee⁶, Wei Lo⁷, Chorng-Shern Horng⁶, Yi-Kai Lin⁸, Tai-Rong Guo⁹ and Chin-Ho Tsai¹⁰, (1)National Taiwan Normal University, Department of Earth Sciences, Taipei, Taiwan, (2)National Dong Hwa University, Department of Natural Resources & Environmental Studies, Hualien, Taiwan, (3)Department of Earth Sciences, National Taiwan Normal University, Miaoli County, Taiwan, (4)National Taiwan University, Department of Geosciences, Taipei, Taiwan, (5)Academia SInica, Insitute of Earth Sciences, Taipei, Taiwan, (6)Academia Sinica, Institute of Earth Sciences, Taipei, Taiwan, (7)NTUT, Institute of Mineral Resources Engineering, Taipei, Taiwan, (8)NCDR National Science and Technology Center for Disaster Reduction of Taiwan, New Taipei, Taiwan, (9)Industrial Technology Research Institute, Green Energy and Environment Research Laboratories, HsinChu, Taiwan, (10)National Dong Hwa University, Hualien County, Taiwan