The left sound channel is horizontal acceleration. The right: vertical. The video shows the vertical and horizontal axes correctly.
The video runs at 10 times real time speed.
This is a magnitude 3.8, 35km deep, earthquake, near Eketahuna
It was recorded about 73km distant in Kapiti, New Zealand.
The S wave arrives about 9.2 seconds after the P wave.
73km / 9.2 seconds = 7.9km per second of PS difference.
Turn it up.