Tsunami Warnings

Natural Warnings

Some tsunami sources could arrive in minutes and there won’t be time for an official warning. It is important to recognise the natural warning signs and act quickly.

If you are near a shore (in a red or orange evacuation zone) and experience any of the following warnings, head immediately inland. Do not wait for an official warning and do not return until an official all-clear message is given by Civil Defence.

  • Feel a strong earthquake that makes it hard to stand or a long earthquake that lasts more than a minute
  • See a sudden rise or fall in sea level
  • Hear loud or unusual noises from the sea

Official Warnings

Official warnings will normally be issued by Civil Defence Emergency Management, Waimakariri District Council and/or emergency services.

They may arrive from a variety of sources including:

If there is an announcement to evacuate the zone you are in, follow the instructions immediately. Stay out of the evacuation zone until you are told by an official source that it’s safe to return.

Coastal Warning Sirens

There are three siren locations in the Waimakariri District, they are stationed in the coastal communities at The Pines/Kairaki, Woodend and Waikuku beaches.

The sirens are tested at least twice a year, usually on the first working day following the change to and from Daylight Savings.

If you hear the coastal warning sirens, comply with any of its voice messages and check the above sources for further information.

It is possible in some tsunami scenarios, that there won’t be sufficient time to activate the sirens.