Auckland Emergency Management has warned all older tsunami sirens, except Ōrewa's two sirens, will be deactivated across the city.
It comes after Auckland Emergency Management (AEM) said the sirens are less effective than an emergency mobile alert as they are frequently vandalised and stolen.
"In an event of a tsunami, warnings will be broadcast on radio, television and news media, as well as on the Auckland Emergency Management website and social media pages," AEM wrote on Twitter.
It comes after AEM described mobile phone alerts as an "effective" way of warnings moving forward.
"In the event of a potential tsunami that could cause damaging waves or flood the land, an Emergency Mobile Alert will be broadcast to all capable mobile phones," AEM general manager Paul Amaral said in October.
He said the sirens at several sites had been prone to "vandalism and theft" and "couldn't be relied on".
The council's Civil Defence and Emergency Management Committee voted to decommission the older sirens on September 5.
Ōrewa's two sirens, which were installed in 2020 will remain.
The tsunami sirens being deactivated from December 1 are located in:
Rodney Ward: Point Wells (3), Whangateau (1), Omaha (6)
Albany Ward: Hobsonville (1), Waiwera (1), Herald Island (3)
Waitākere Ward: Bethells / Te Henga (3), Piha (9), Karekare (3), Whatipū (1), Huia (6), Te Atatū (5)
Tips for tsunami preparedness:
- Enough water for three days or more
- Long-lasting food that doesn't need cooking
- Toilet paper and large plastic buckets for an emergency toilet
- Work gloves and a properly-fitted P2 or N95 mask
Essential items to have in a grab bag:
- Walking shoes, warm clothes, raincoat and hat
- Water and snack food
- Hand sanitiser
- Portable phone charger
- Cash
- Copies of important documents and photo ID
- Sunblock
- RAT tests
- Medications
- First aid kit
- Torch and batteries
