04Dec2016 03:15:47 Z
The left sound channel is horizontal acceleration. The right: vertical. The video shows the vertical and horizontal axes correctly.
The video runs at 12 times real time speed.
This is a magnitude 5.5, 12km deep, earthquake, 10 km east of Seddon
It was recorded about 116km distant in Kapiti, New Zealand.
The S wave arrives about 16.6 seconds after the P wave.
116km / 16.6 seconds = 7.0km per second of PS difference.
Turn it up.