Kuo-En Ching, National Cheng Kung University, Geomatics, Tainan, Taiwan, Yuan-Hsi Lee, Chung-Cheng University, Min-Hsiung Chia-Yi,, Taiwan, Song-Chuen Chen, Central Geological Survey, Taipei, Taiwan, Yi-Ying Wen, Graduate Institute of Seismology National Chung Cheng University, Chiayi County, Taiwan, Kai-chien Cheng, CCU National Chung Cheng University, Chiayi County, Taiwan, Strong Wen, NCREE National Center for Research on Earthquake Engineering of Taiwan, Taipei, Taiwan and Ruey-Juin Rau, Natl Cheng-Kung University, Department of Earth Sciences, Tainan, Taiwan