The left sound channel is horizontal acceleration. The right: vertical. The video shows the vertical and horizontal axes correctly.
The video runs at 36 times real time speed.
This is a magnitude 5.8, 4km deep, earthquake, 30 km north-west of Wanaka
It was recorded about 651km distant in Kapiti, New Zealand.
The S wave arrives about 67 seconds after the P wave.
651km / 67 seconds = 9.7km per second of PS difference.
Turn it up.