Fig. 3
From: The spatial distribution of earthquake stress rotations following large subduction zone earthquakes
Stress rotations following the 2004 M9.3 Sumatra–Andaman earthquake. a Vertical coseismic rotation, the change between the pre-mainshock (1977-5-20–2004-12-26) and first postmainshock (2004-12-26–2005-3-28) time periods. Thick black lines indicate the 15-m contour of the 2004 M9.3 mainshock slip model of Rhie et al. (2007), b vertical postseismic rotation P1, between the first and second (2005-3-28–2007-9-12) postmainshock time periods. Thick black lines indicate the 4-m contour of the postseismic slip model of Chlieh et al. (2007), and the southernmost contour is the 10-m contour of the 2005 M8.6 Nias–Simeulue earthquake slip model of Ji (2005), c vertical postseismic rotation P2, between the second and third (2007-9-12–2012-4-11) postmainshock time periods, d vertical postseismic rotation P3, between the third and fourth (2012-4-11–2016-9-17) postmainshock time periods, e horizontal coseismic rotation, f horizontal postseismic rotation P1, g horizontal postseismic rotation P2, h horizontal postseismic rotation P3