10Mar2016 20:24:01 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, 11km deep, earthquake, 35 km east of Seddon
It was recorded about 95km distant in Kapiti, New Zealand.
The S wave arrives about 14 seconds after the P wave.
95km / 14 seconds = 6.8km per second of PS difference.
Turn it up.