*Yuichi S. Hayakawa^1,2, Sahoko Aki², Jennifer Henbest de⁴, kubo takashi⁵, Noriko Kawabata⁵, Takuro Ogura^3,2 (1.Faculty of Environmental Earth Science, Hokkaido University, 2.Center for Spatial Information Science, The University of Tokyo, 3.Graduate School of Frontier Science, The University of Tokyo, 4.Osaka International School of Kwansei Gakuin, 5.Asahi Town, Toyama Prefecture)

*Yuichi S. Hayakawa^1,3, Takuro Ogura², Yasuhiko TAMURA³, Chiaki T. Oguchi⁴ (1.Faculty of Environmental Earth Science, Hokkaido University, 2.Graduate School of Frontier Sciences, The University of Tokyo, 3.Center for Spatial Information Science, The University of Tokyo, 4.Graduate School of Science and Engineering, Saitama University)

*Yuichi S. Hayakawa¹, Shigekazu Kusumoto², Takuro Ogura^3,5, Toshiyasu Nagao⁴, Paul Karson B. Alanis⁶ (1.Faculty of Environmental Earth Science, Hokkaido University, Japan, 2.Graduate School of Science and Engineering for Research, University of Toyama, Japan, 3.Graduate School of Frontier Science, The University of Tokyo, Japan, 4.Institute of Oceanic Research and Development, Tokai University, Japan, 5.Graduate School of Environmental Science, Hokkaido University, Japan, 6.Philippine Institute of Volcanology and Seismology (PHIVOLCS), Department of Science and Technology, The Philippines)