1. 1) Boulanger, R. W., Wijewickreme, D. (2017). PBD-III Vancouver, Proc., 3rd Intl. Conf. on Performance-based Design in Earthquake Geotech. Eng., Vancouver, BC, Canada.
2. 2) British Geological Survey (2011) : GSI 3D 2011, Software manual and methodology, Open Report OR/11/020, www.gsi3d.org.uk.
3. 3) Cho, I., Nishikaichi, K., Yanagisawa, Y., Hasegawa, I., and Kuwahara, Y. (2006) : Modeling of Three-Dimensional Geological Structure with Constraints of Geotectonic History: Application to a Seismic Gap Region South of the 2004 Mid Niigata earthquake, Journal of JAEE, 6(4), 74-93. (in Japanese)
4. 4) Geographical Survey Institute, Japan (2018): Electronic topographic map , https://maps.gsi.go.jp.
5. 5) Hasegawa, I., Nishikaichi, K. (2005) : Development of three dimensional geological framework model using Geomap3D – Examplification on Tsukuba area and chuetsu epicentral are in Japan -, Geoinformatics, .16(2), 76-77. (in Japanese)