Figure 1From: A trial derivation of seismic plate coupling by focusing on the activity of shallow slow earthquakesOverview of the 2011 Tohoku earthquake and localization of shallow slow earthquakes. Red circles were determined by NIED (2012). Coseismic slip is indicated by a color scale (Yagi and Fukahata 2011). The gray contours denote the slip areas for the recent major earthquakes at Miyagi-oki in 1978 (M 7.4) and 1936 (M 7.4), and at Fukushima-oki in 1938 (M 7.3, M 7.4, and M 7.5; Murotani 2003; Yamanaka and Kikuchi 2004). The gray broken lines denote the borders of Iwate, Miyagi, Fukushima, and Ibaraki prefectures. Gray and pink bold lines denote the trench axis and the down-dip limit of interplate earthquakes (Igarashi et al. 2001; Uchida et al. 2009). Rectangles with broken lines represent our suggestions based on the present study as described in the ‘Discussion’ section.Back to article page