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 3.6, 126km deep, earthquake, 35 km west of Levin
It was recorded about 102km distant in Kapiti, New Zealand.
The S wave arrives about 14.2 seconds after the P wave.
102km / 14.2 seconds = 7.2km per second of PS difference.
Turn it up.