Fig. 8
From: Tilt and strain change during the explosion at Minami-dake, Sakurajima, on November 13, 2017
Change in horizontal distance between GPS stations SVOG and KURG during the period from 2006 to 2020. The gray dashed line represents November 13, 2017. The offset due to dike intrusion on August 15, 2015 (Hotta et al. 2016b) was removed. The white line represents a 30-day rolling average trendline. The intrusion rate and corresponding slope of displacement indicated by the lines on the right side of the map is based on the intrusion rate during the inflation period of October 2011–March 2012 (1.4 × 107 m3/year; Hotta et al. 2016a) and the assumption that the intrusion rate and the deformation rate are linearly related.