Correlation between Back-arc Spreading Center and Volcanic Arc Location

The dataset includes the measurements of individual subduction zones defined in the convergence-parallel, trench-perpendicular, and spreading-parallel direction. 

Table B.3. Location of each trench, arc, and back-arc defined in the convergence-parallel direction, and the corresponding distance from the trench to the arc (D_TA), from the arc to the back-arc spreading center (D_AB), and from the trench to the back-arc spreading center (D_TB). 

Table B.4. Location of each trench, arc, and back-arc defined in the trench-perpendicular direction, and the corresponding distance from the trench to the arc (D_TA), from the arc to the back-arc spreading center (D_AB), and from the trench to the back-arc spreading center (D_TB).

Table B.5. Location of each trench, arc, and back-arc defined in the spreading-parallel direction, and the corresponding distance from the trench to the arc (D_TA), from the arc to the back-arc spreading center (D_AB), and from the trench to the back-arc spreading center (D_TB). 

TableS1. Location of each trench, arc, and back-arc defined in the convergence-parallel direction, and the corresponding distance from the trench to the arc (D_TA), subarc slab depth (H), and from the trench to the back-arc spreading center (D_TB). The slab dip is measured at 50km (Dip50), 100km (Dip100), and 200km (Dip200) and averaged from 0 to 50 km (Dip050), 0 to 100km (Dip0100), 0 to 200km (Dip0200), and 50 to 200km (Dip50200). 

TableS2. Location of each trench, arc, and back-arc defined in the trench-perpendicular direction, and the corresponding distance from the trench to the arc (D_TA), subarc slab depth (H), and from the trench to the back-arc spreading center (D_TB). The slab dip is measured at 50km (Dip50), 100km (Dip100), and 200km (Dip200) and averaged from 0 to 50 km (Dip050), 0 to 100km (Dip0100), 0 to 200km (Dip0200), and 50 to 200km (Dip50200).