1. Amemiya, K., 2019. Rapid landslide organization in earth (detritus) and the stability by Hokkaido Iburi Eastern Earthquake. In: Proceedings of the 2019 Research Presentation for Hokkaido Branch of Japan Landslide Society, pp. 39–42. (in Japanese).
2. Cabinet Office, 2019. Damage situation related to the 2018 Hokkaido Eastern Iburi Earthquake. (in Japanese) http://www.bousai.go.jp/updates/h30jishin_hokkaido/index.html.
3. Center for Natural Hazards Research, Hokkaido University, 2019. Symposium for looking back on the 2018 Hokkaido Eastern Iburi Earthquake and considering future disaster mitigation and reconstruction. (in Japanese).
4. Earthquake Research Committee, 2018. Headquarters for Earthquake Research Promotion, Evaluation of the 2018 Hokkaido Eastern Iburi Earthquake. (in Japanese). https://www.static.jishin.go.jp/resource/monthly/2018/20180906_iburi_3.pdf.
5. Geological and Geotechnical Information Database G-Space II in Japan: https://www.gspace.jp/.