Finally found an
excellent lecture which summarises the effects of the 14 November North Canterbury NZ earthquake sequence. (Vic Uni NZ)
Click to view
This also led me to discover this, also excellent, simulation which was done in 2015 of a large EQ in Waiarapa district (SE NZ NI).
https://www.youtube.com/watch?v=VxFjyk449Yk This scenario is now far nearer to happening due to redistribution of stresses on faults and plate boundary in this area. Slow slipping is occurring further north (thus relieving stress) but in Waiarapa things are stuck. When areas unstick they produce large nasty earthquakes. Ouch. Palmerston North (where my musical pals currently live) is essentially on an old lake bed or raised flood plane...ie, not rocky but rather squidgy underground. This means it will shake a lot and kinda amplify things. Not good.
Also here is Brad showing us the geothermal features around Rotorua in central NI.
https://www.youtube.com/watch?v=CdNi43qQa7o