11Jan2017 00:19:22 Z
The left sound channel is horizontal acceleration. The right: vertical. The video shows the vertical and horizontal axes correctly.
The video runs at 8 times real time speed.
This is a magnitude 5.1, 11km deep, earthquake, 15 km east of Seddon
It was recorded about 113km distant in Kapiti, New Zealand.
The S wave arrives about 15.3 seconds after the P wave.
113km / 15.3 seconds = 7.4km per second of PS difference.
Turn it up.