Fig. 9
From: Tilt and strain change during the explosion at Minami-dake, Sakurajima, on November 13, 2017
Schematic diagrams of magma migration during the Minami-dake explosion revealed in the present study. The left diagram represents phase 1 (22:07–22:10) and the right represents phase 2 (22:10–24:00). The open and solid circles represent inflation and deflation of the spherical sources, respectively. The thickness of the arrows between each source or the Minami-dake crater represents the amount of magma migration based on the assumption that uncompressible magma migrates from sources K to MD, MD to MS, and MS to Minami-dake crater, and magma is not injected towards source K