Numerical examples of the TSGT Hijpq(rQ, t; rS), with both rS and rQ on the equator and rQ positioned to the east of rS. rS is located at a depth of 37 km, and rQ is on the surface. All time-series have been filtered by a four-pole Butterworth bandpass filter with corner frequencies at 0.002–0.08 Hz and are plotted with the same vertical scale.