21Apr2019 05:53:14 Z
The left sound channel is horizontal acceleration. The right: vertical. The video shows the vertical and horizontal axes correctly.
The video runs at 18 times real time speed.
This is a magnitude 4.8, 203.2km deep, earthquake, 25 km north-east of Tauranga
It was recorded about 385km distant in Kapiti, New Zealand.
The S wave arrives about 42.5 seconds after the P wave.
385km / 42.5 seconds = 9.1km per second of PS difference.
Turn it up.