[SSS04-11] Source scaling and stress drop for the 2018 Hokkaido Eastern Iburi earthquake sequence estimated by the S-wave coda spectral ratio method *染井 一寛1、浅野 公之2、岩田 知孝2、宮腰 研1、赤澤 隆士1 (1.一般財団法人地域地盤環境研究所、2.京都大学防災研究所)