24Aug2015 09:41:25 Z
The left sound channel is horizontal acceleration. The right: vertical. The video shows the vertical and horizontal axes correctly.
The video runs at 30 times real time speed.
This is a magnitude 5.8, 149km deep, earthquake, 885 km north-east of Whakatane
It was recorded about 1245km distant in Kapiti, New Zealand.
The S wave arrives about 115 seconds after the P wave.
1245km / 115 seconds = 10.8km per second of PS difference.
Turn it up.