Fig. 6

Vertical deformation and earthquake locations from the tensile crack model. a Observed (red bars) and calculated (white bars) vertical deformations from April 2009 to October 2014 based on the tensile crack model, including the epicenters of earthquakes in and around Mount Ontake volcano. The blue rectangle denotes the location of the shrunken tensile crack. Error bars on the sources show the 95 % confidence level estimated using an F-test (Arnadottir and Segall 1994). b Depth profile of the estimated sources with earthquakes in a latitudinal direction. c Depth profile of the estimated sources with earthquakes in a longitudinal direction