01Sep2016 16:37:55 Z
The left sound channel is horizontal acceleration. The right: vertical. The video shows the vertical and horizontal axes correctly.
The video runs at 50 times real time speed.
This is a magnitude 7.1, 22km deep, earthquake, 125 km north-east of Te Araroa
It was recorded about 581km distant in Kapiti, New Zealand.
The S wave arrives about 101.5 seconds after the P wave.
581km / 101.5 seconds = 5.7km per second of PS difference.
Turn it up.