Well that was cool. I'm sitting at my computer looking at some stuff and feel this tiny ground tremor. I thought it was a small earthquake until three secs later when we got a good jolt. Always fun, earthquakes. Especially the thought of "THE GROUND SHOULD NOT DO THAT!" turns out it was a 4.8 only about 20km NW of us.
http://www.geonet.org.nz/earthquake/quakes/3165869g-shaking.html