The vid tour of the city was sobering. We were there the in April before the quake and stayed at the hotel opposite the cathedral. I t was a little comforting seeing that our hotel survived. We were back in Enzed on a cruise early this year but we couldn't go back into ChCh so visited Akaroa instead.
If if it gets too unsettling for you to stay there you could always move to the west island! lol. But then we had a quake here in 89 when 13 people were killed. I was at work at the time (in a bank) not far from the centre - the whole building seemed to jump sideways a metre then back again. Our home, about 15ks away, suffered slight damage and there was scarcely a building anywhere that wasn't damaged in some way. It was just the one big shock then almost nothing afterwards, unlike your siituation.
Importantly, the pubs are still standing.