[S-VC42] Hydrothermal systems of volcanoes

[SVC42-P04] Spatial Heterogeneity and Fluid Evolution Processes of Hydrothermal Systems around Mt. Yasur, Vanuatu

*Tatsuji Nishizawa¹, Fukashi Maeno², Osamu Ishizuka³, Yuki Yasuda², Krishna Kumar Kotra⁴, John Junior Niroa⁵, Robson Tigona⁶, Teruyuki Maruoka⁷, Ikuya Adachi⁷, Tsutomu Yamanaka⁷, Shinya Yamamoto¹, Hitomi Nakamura³, Noritoshi Morikawa³, Mie Ichihara² (1. Volcanic Disaster Research Center, Mount Fuji Research Institute, Yamanashi Prefectural Government, 2. Earthquake Research Institute (ERI), University of Tokyo, 3. National Institute of Advanced Industrial Science and Technology (AIST), 4. The University of the South Pacific (USP), Emalus Campus, Vanuatu, 5. Vanuatu Meteorology and Geohazards Department (VMGD), 6. National University of Vanuatu (NUV), 7. University of Tsukuba)

Keywords:Republic of Vanuatu, Caldera Volcano, Fault, Hot Spring Water, Hydrothermal System