Institute of Geophysics, Victoria University, Wellington, 6005, New Zealand
Aso Volcanological Laboratory, Kyoto Univ., Kumamoto, 869-1404, Japan
3. Faculty of Environmental Studies, Nagasaki Univ., Nagasaki, 852-8521, Japan
Institute of Seismology and Volcanology, Kyushu Univ., Shimabara, 855-0843, Japan
Institute of Seismology and Volcanology, Kyushu Univ., Shimabara, 855-0843, Japan
Sakurajima Volcano Research Center, DPRI, Kyoto Univ., Kagoshima, 890-8577, Japan ; Institute of Geophysics, Victoria University, Wellington, 6005, New Zealand
Institute of Geophysics, Victoria University, Wellington, 6005, New Zealand
5. Earthquake Hazards Division, DPIR, Kyoto Univ., Kyoto, 611-0011, Japan