[antod]

Based on the location of the epicentre, there was no way of getting a 60 sec (or any) warning if you were in Christchurch that day.

It would've been useful in the 2016 Kaikoura quake though - watching the models* of how that fault unzipped up the east coast of the South Island should've given Marlborough and Wellington some warning.

* Here's an example: https://www.youtube.com/watch?v=z1HWet9j070