Not called the 'shakey isles' for nothing!
Our building code is fairly robust and many older buildings have been 'earthquake strengthened' (usually at great expense) to bring them up to spec. There are quite a few shakes like this throughout the year, you get used to them.
In saying that, extrapolating historical records, Wellington is years overdue for a disastrous quake of major proportions. It will happen, it's just a time bomb and there will be massive devastation. You wouldn't catch me living there for quids.
However as Jac Mac alluded, there is an upside, it's where the politicians occupy our seats of parliament. As always, nothings all bad. :thumbsup: