Fig. 1
From: Unusual low-angle normal fault earthquakes after the 2011 Tohoku-oki megathrust earthquake
Low-angle normal fault aftershocks and stress drop distribution of the 2011 Tohoku-oki earthquake. The stress drop distribution of the 2011 Tohoku-oki earthquake calculated from the distribution of moment release (Fukahata et al. 2012) is shown together with the focal mechanisms of the 2014 Fukushima-oki earthquake (M W 6.6), the largest low-angle normal fault aftershocks (M W 6.6) that occurred on 12 March 2011, and the mainshock (M W 9.1) (Yagi and Fukahata 2011). The focal mechanisms of the 2014 Fukushima-oki earthquake are determined by the GCMT project and in this study are shown in red and blue, respectively. The figure was generated with Generic Mapping Tools (Wessel and Smith 1998)