[S-TT38] Seismic monitoring and processing system

[STT38-P02] Hinagu 0.01 Manten seismic observation with easy-handle observation tool

*Satoshi Matsumoto¹, Ayaho Mitsuoka², Takumi Motokoshi², Takeshi Matsushima¹, Hiroshi Shimizu¹, Kazunari Uchida¹, Azusa Mori¹, Satoru ANIYA², Takuji Watanabe², Yota Suzuki², Ryunosuke Takayama², Shungo Tasa², Shinichi Sakai³ (1.Institute of Seismology and Volcanology, Faculty of Science, Kyushu University, 2.Graduate School of Science, Kyushu University., 3.The University of Tokyo III/GSII)

Keywords:Seismic observation, temporal measuring, data

Temporal seismic observation is worthy to deepen understanding for earthquake genesis because of its flexibility in time and space. For instance, 1000 stations observation (called as 0.1 Manten hyper dense seismic observation) in hypocentral region of the 2000 Western Tottori Earthquake (M7.3) allowed us to improve focal mechanism estimation and to find that small earthquake with non double couple component (Hayashida et al., 2020). However, the temporal observation is usually not easy for person without some special knowledge to set up instrument and handle data. In this study, we introduce an observation system composed by the observation system for 0.1 Manten observation and data storage system for overcoming the difficulties. More then 100 seismometers were installed South of the 2016 Kumamoto earthquake hypocentral area. This area is characterized by complex active fault geometry and possibility of after-slip below the faults (Mitsuoka et al., 2022). The data are transmitted through FOMA network, processed at computer in Kyushu Univ., and stored in the network file system. One who set up seismometers can download data in WIN format from storage through internet without measuring site position, handle data etc.