11Jan2016 00:14:39 Z
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 4.6, 142km deep, earthquake, 25 km east of Rotorua
It was recorded about 336km distant in Kapiti, New Zealand.
The S wave arrives about 34.8 seconds after the P wave.
336km / 34.8 seconds = 9.7km per second of PS difference.
Turn it up.