06Dec2017 00:56:45 Z
The left sound channel is horizontal acceleration. The right: vertical. The video shows the vertical and horizontal axes correctly.
The video runs at 15 times real time speed.
This is a magnitude 4.9, 176km deep, earthquake, 40 km south-west of Taumarunui
It was recorded about 205km distant in Kapiti, New Zealand.
The S wave arrives about 26.3 seconds after the P wave.
205km / 26.3 seconds = 7.8km per second of PS difference.
Turn it up.