Motorway sign warning of Tsunami, Wellington after a 7.5 earthquake based around Cheviot in the South island shock the New Zealand capital.
AAP Image/SNPA, Ross Setford
The threat of any tsunami following an earthquake can take time to assess, so it's important people who live in risk zones are ready for any event.
The sea straddles two tectonic plates and is lined by large towns and cities. We need to take the tsunami threat seriously.
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