Fig. 2: Back-projection results of the mainshock.
From: Two-stage rupture during the Mw 8.3 Okhotsk 2013 deep-focus earthquake constrains slab geometry
a Normalized energy curve of HF1; b Normalised energy curve of HF2; c DTA of HF1; d DTA of HF2. Isosurfaces at a threshold of 0.25 at each moment of the back-projection energy at HF1 (e) and HF2 (f). S1 and S2 denote stages 1 and 2. The value of the contour line is 0.25. The gray contours are the isosurfaces of the plate model 2.012, the light pink surfaces are the isosurfaces of the tomography model32 with dVp/Vp = 1%, and the red circles are the Okhotsk earthquake catalog33.
