Fig. 3From: Can the regional 3D stress field according to the Wallace–Bott hypothesis predict fault slip directions of future large earthquakes?Distribution of focal mechanism solutions (centroid depth ≤ 30 km) used for the validation for a Period I (January 1997 to January 2007), b Period II (February 2007 to the occurrence time of the 2011 Tohoku-oki earthquake), and c Period III (postseismic period of the 2011 Tohoku-oki earthquake). The colors indicate centroid depth. d Magnitude frequency distribution of earthquakes for each periodBack to article page