Fig. 6From: Phreatic eruptions and deformation of Ioto Island (Iwo-jima), Japan, triggered by deep magma injectionThe daily number of earthquakes and vertical movement at Motoyama before and after phreatic eruptions were not accompanied by precursors. a The eruption on March 9, 1982; b the eruption on October 19, 2001; c the eruption on February 17, 2013. The green and blue curves denote vertical movement at GNSS observation stations. The white triangles show the occurrence times of the eruptionsBack to article page