1. 1International Institute of Seismology and Earthquake Engineering, Building Research Institute, Tsukuba, Japan
2. 2Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
3. 3Disaster Risk Reduction Business Division, OYO Corporation, Saitama, Japan
4. 4Graduate School of Science and Engineering, Ehime University, Matsuyama, Japan
5. 5Faculty of Engineering, Tottori University, Tottori, Japan
6. 6Faculty of Safety Science, Kansai University, Osaka, Japan
7. 7NEWJEC Incorporated, Osaka, Japan