Fig. 3From: Significant P wave conversions from upgoing S waves generated by very deep earthquakes around JapanSchematic illustration of the raypaths for major seismic phases from a very deep source: upgoing S wave (Sup, s), downgoing S wave, surface reflected sS and sP, sPn waves and multiple sSPmp reflections in the crust are marked. Horizontally travelling sSPmp multiples in the crust couple with the incoming S wave (s) develop the s-PL phaseBack to article page