12Dec2016 05:14:21 Z
The left sound channel is horizontal acceleration. The right: vertical. The video shows the vertical and horizontal axes correctly.
The video runs at 9 times real time speed.
This is a magnitude 4.7, 15km deep, earthquake, 15 km south-east of Seddon
It was recorded about 128km distant in Kapiti, New Zealand.
The S wave arrives about 16.4 seconds after the P wave.
128km / 16.4 seconds = 7.8km per second of PS difference.
Turn it up.