September 2025

Date: August 28–29, 2025Venue: Seismology and Volcanology Observation and Research Center, Shimabara The Seismology and Volcanology Research Meeting was held again this year, marking its fourth edition. Even within the same institute, daily research exchange can be limited when people belong to different laboratories. This meeting was launched to bridge those gaps. Although our research goals are often similar, the approaches we take can be quite different. By coming together, we aim to better understand each other’s work and to create new opportunities for collaboration. This year, discussions were especially lively among younger researchers. Many sessions continued well beyond their scheduled time—a unique feature of this meeting, where participants can keep exchanging ideas until everyone is satisfied. Program Tomoaki KuboDehydration-induced embrittlement and deep-focus earthquakes II Satoru BabaSlow earthquakes in the Nankai Trough and northeastern Japan, and detection of ultra-low-frequency events Masatoshi OhashiMagma decompression rate revisited: the problem of unrealistic supersaturation Junji YamamotoExploring mantle processes to understand planetary system formation and evolution Kentaro EmotoDensity fluctuations and seismic waves Takeshi MatsushimaRecent volcanic activity at Mount Kirishima Koki AizawaVPSI (Volcano Plumbing System Index) Junichi ItoCrater microtopography analysis using ultra-high-resolution DEM: a case study of Mount Kuju Satoshi MatsumotoTowards a physical model of Mount Kirishima volcano?

Seismology and Volcanology Research Meeting 2025