[S-VC43] Active Volcanism

[SVC43-P26] Long-term gravity change around Sakurajima volcano, revealed by repeated relative gravity measurements from 1998 to 2026

*Takahito Kazama¹, Ryo Oyanagi¹, Keigo Yamamoto², Kazumi Okada³, Hiroshi Aoyama³, Yusuke Takenaka², Haruhisa Nakamichi² (1. Graduate School of Science, Kyoto University, 2. Disaster Prevention Research Institute, Kyoto University, 3. Institute of Seismology and Volcanology, Faculty of Science, Hokkaido University)

Keywords:relative gravity, Sakurajima volcano, magma density, degassing, crustal deformation, magma chamber