04Jan2016 00:07:55 Z
The left sound channel is horizontal acceleration. The right: vertical. The video shows the vertical and horizontal axes correctly.
The video runs at 20 times real time speed.
This is a magnitude 5.1, 25km deep, earthquake, 25 km east of Pongaroa
It was recorded about 122.5km distant in Kapiti, New Zealand.
The S wave arrives about 14.6 seconds after the P wave.
122.5km / 14.6 seconds = 8.4km per second of PS difference.
Turn it up.