- 2024/03 - 現在 Task Team for Tsunami Forecasting from Ocean Observations, Working Group 2, Intergovernmental Coordination Group for the Pacific Tsunami Warning and Mitigation System (WG2-TT-TFOO, ICG/PTWS), UNESCO/IOC Member
- 2022/02 - 現在 Scientific Committee, Ocean Decade Tsunami Programme (ODTP-SC), UNESCO/IOC Member
- 2021/06 - 現在 Subcommittee for Tsunami Evaluations, Earthquake Research Committee, The Headquarters for Research Promotion Member
- 2023/11 - 2024/03 External Review Panel for Chilean National Seismic Network, Chile University Review Panel Member
- 2022/02 - 2022/03 Study Session on Tsunami Prediction Technology Member
- 2018/06 - 2020/03 The Headquarters for Research Promotion Expert Advisor
- 2017/10 - 2018/03 External Review Panel for Chilean National Seismic Network, Chile University Review Panel Member
- 2015/10 - 2017/10 Editorial and Publication Committee, The Society of historical Earthquake Studies Chair
- 2013/03 - 2017/05 Subcommittee for Tsunami Evaluations, Earthquake Research Committee, The Headquarters for Research Promotion Member
- 2014/04 - 2017/03 Subcommittee for Preliminary and Immediate Prediction of Earthquake Motions and Tsunami, Planning and Promotion Subcommittee, Coordinating Committee of Earthquake and Volcanic Eruption Prediction Researches Advisor
- 2013/09 - 2015/09 General Affairs Committee, The Society of historical Earthquake Studies Chair
- 2013/04 - 2015/03 Conference and Planning Committee, The Seismological Society of Japan Member
- 2004 - 2010 Panel on Evaluation Methodology of Active Faults, Subcommittee for Long-Term Evaluation, Earthquake Research Committee, The Headquarters for Earthquake Research Promotion Member
- 2007 - 2008 Working Group on Temporary Basic Rules, Panel on Evaluation Methodology of Active Faults, Subcommittee for Long-Term Evaluation, Earthquake Research Committee, The Headquarters for Earthquake Research Promotion Member
- 2004/09 - 2007/09 Editorial and Publication Committee, The Society of historical Earthquake Studies Chair
- 2003/09 - 2004/09 Editorial and Publication Committee, The Society of historical Earthquake Studies Committee
- 1994/04 - 1995/03 Kansai Local Office, The Meteorological Society of Japan Organizer