29Jun2015 09:27:31 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 4.2, 84km deep, earthquake, 20 km north-east of Feilding
It was recorded about 103km distant in Kapiti, New Zealand.
The S wave arrives about 14.2 seconds after the P wave.
103km / 14.2 seconds = 7.3km per second of PS difference.
Turn it up.