*Cheng-Horng Lin^1,2,3、Hsin-Chieh Pu⁴、Min-Hung Shih^2,3、Ya-chaun Lai^2,3 (1.Institute of Earth Sciences, Academia Sinica, Taiwan、2.National Center for Research on Earthquake Engineering, National Applied Research Laboratories, Taiwan、3.Taiwan Volcano Observatory at Tatun, Taiwan、4.Central Weather Administration, Taiwan)