Fig. 4.From: Spatio-temporal distribution of seismic moment release near the source area of the 2011 Tohoku-Oki earthquakeSpatial distribution of the cumulative seismic moment release in the study area using the pre-seismicity in the up-dip, and down-dip, portions. In (a) and (b), the boundary depth is 30 km; in (c)–(d) and (e)–(f) the boundary depth is 20 and 40 km, respectively. The dashed rectangles show the position of the five segments.Back to article page