11May2016 19:15:32 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 4.7, 28km deep, earthquake, 20 km west of Masterton
It was recorded about 31km distant in Kapiti, New Zealand.
The S wave arrives about 6.8 seconds after the P wave.
31km / 6.8 seconds = 4.6km per second of PS difference.
Turn it up.