One of the reasons I moved from Wellington to Melbourne was the earthquake risk. After the Kaikoura earthquake in 2016, I realised how vulnerable Wellington is if there's a similar sized, magnitude 7-8 earthquake centred on Wellington (which there is a significant risk of). There's only one highway into Wellington, and if that gets cut off after an earthquake (which is very likely, it was down to one lane after the 2016 quake due to a storm at the same time) then Wellington is only accessible by boat.

The 2016 earthquake also showed that despite efforts to earthquake-strengthen buildings in the city, it's still very vulnerable to earthquake damage.