Fig. 8From: Phreatic eruptions and deformation of Ioto Island (Iwo-jima), Japan, triggered by deep magma injectionThe relationship between the optimum value of the depth and the residual sum of squares for crustal deformation after the beginning of the eruption on April 29, 2012. The star shows the optimum value of a depth of 800 m of the sill-like source. The curve shows the residual sum of squares at each depthBack to article page