Fig. 7

Spatiotemporal slip distribution associated with the 2012–2016 Tokai L-SSE inverted from the horizontal and vertical displacement data shown in Figs. 5 and 6, respectively, with a 0.5-year time window from 2012.0 to 2018.0. The arrows indicate the direction and amount of slip on the continental upper plate relative to the oceanic lower plate at the plate boundary, and the circles at the tips of the arrows indicate the estimation error of 1σ. The contour lines represent the amount of slip, with an interval of 1 cm. The gray area represents the area where the resolution is less than 0.05. The thin gray isodepth contour lines with an interval of 10 km represent the upper surface of the subducting PHS plate obtained by Hirose et al. (2008). The black line represents the plate boundary obtained by Bird (2003), Lindquist et al. (2004), and Iwasaki et al. (2015), and the solid triangles indicate the direction of motion of the plate to be subducted. The light blue dots represent the epicenters of tectonic tremors that occurred within the period of each time window. Periods (a) to (l) are the same as those in Fig. 5