14Feb2016 00:13:43 Z
The left sound channel is horizontal acceleration. The right: vertical. The video shows the vertical and horizontal axes correctly.
The video runs at 40 times real time speed.
This is a magnitude 5.7, 15km deep, earthquake, 15 km east of Christchurch
It was recorded about 345km distant in Kapiti, New Zealand.
The S wave arrives about 40 seconds after the P wave.
345km / 40 seconds = 8.6km per second of PS difference.
This sounds like two earthquakes perhaps 40 seconds apart.
Turn it up.