Move to Hamilton, GNS vulcanologist Graham Leonard suggests.
Nestled inland, Hamilton, population 130,000, is his pick for the most geologically sound city in New Zealand. It's tucked away from the coast - cancelling out any risk of tsunamis - and is a safe distance from known fault lines. If Mt Ruapehu erupts, the volcanic ash is likely to be blown east across the island, and it's far enough away from Auckland's volcanic field to be considered safe.
Even if the Waikato River flooded, it's in a deep enough riverbed that the city is unlikely to be affected, he says.