In the paper “Principal horizontal stress orientations prior to the 2011 Mw 9.0 Tohoku-Oki, Japan, earthquake in its source area” by Weiren Lin et al. (Geophysical Research Letters, 38, L00G10, doi:10.1029/2011GL049097, 2011), a citation, Loveless and Meade , is missing from the Figure 1a caption and the corresponding reference is missing from reference list.
 The Figure 1a caption should read: (a) Locations of the epicenter of the 2011 Mw 9.0 Tohoku-Oki Earthquake mainshock (red star) and the drilling sites (black stars) (modified from Avouac ). The earthquake ruptured the plate interface along which the Pacific plate subducts beneath northern Honshu (Okhotsk plate) at a rate of 8 cm/y approximately. Black contour lines analyzed by Ozawa et al.  show the coseismic slip displacement which is considerably dependent on models deployed by different researchers for inversion analyses. The color contours show the degree of interplate coupling before the earthquake (interseismic locking) [Loveless and Meade, 2010]. The frame of the dashed blue-line shows the area of Figure 1b.