Fig. 1
From: The spatial distribution of earthquake stress rotations following large subduction zone earthquakes
Stress rotations following the 2011 M9.0 Tohoku-Oki earthquake. Shown are both the vertical rotation, i.e., the change in plunge of the σ1 axis, and the horizontal rotation, i.e., the change in trend of the SHmax direction, for 0.5° × 0.5° spatial bins. a Vertical coseismic rotation, the change between the pre-mainshock (1997-2-16–2011-3-11) and first postmainshock (2011-3-11–2011-6-11) time periods. Thick black lines indicate the 10-m contour of the mainshock slip model of Minson et al. (2014), b vertical postseismic rotation P1, between the first and second (2011-6-11–2012-6-11) postmainshock time periods. Thick black lines indicate the 2-m contour of the postseismic slip model of Ozawa et al. (2011), c vertical postseismic rotation P2, between the second and third (2012-6-11–2016-9-17) postmainshock time periods, d horizontal coseismic rotation, e horizontal postseismic rotation P1, f horizontal postseismic rotation P2