11Feb2016 01:17:22 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 3.8, 5km deep, earthquake, 15 km west of Levin
It was recorded about 35km distant in Kapiti, New Zealand.
The S wave arrives about 5.4 seconds after the P wave.
35km / 5.4 seconds = 6.5km per second of PS difference.
Turn it up.