Floods, cyclones and earthquakes in Auckland

Back home in Blighty, the worst the weather usually does is cancel the trains. In Auckland, the big risk isn't the earthquake everyone asks about. It's water.

The short version

Flash flooding is Auckland's most common hazard. The city's steep, short catchments mean water rises fast after intense rain [1].
The 2023 storms, the Auckland Anniversary floods and then Cyclone Gabrielle, led to around 3,550 properties being registered for assessment and more than 1,000 buy-outs of the riskiest homes [2][3].
Earthquakes are less common in Auckland than in much of New Zealand, but a damaging one can still happen. The drill is Drop, Cover and Hold [4][5].
Auckland sits on a volcanic field of more than 50 volcanic centres. An eruption in our lifetimes is considered unlikely but not impossible [6].
Home insurance that includes fire gives you Natural Hazards Commission cover, generally up to NZ$300,000 plus GST for your home per event [7].

Pound conversions in this guide use the Bank of England spot rate of 5 November 2026 (£1 = NZD 2.4016), rounded.

What happened in 2023

Auckland had two hits in quick succession. On 27 January 2023, the Auckland Anniversary weekend, record rain flooded homes, roads and the airport. A fortnight later, in February, Cyclone Gabrielle brought wind, more rain and landslips across the North Island, including the west coast beaches and the north of the region.

The recovery has shaped how Auckland deals with risk. Auckland Council and the Government set up a property categorisation scheme [2][3]:

Category	What it means	Numbers (as at 1 April 2025)
Category 1	No intolerable risk to life; normal repairs	1,988 properties
Category 2P	Risk can be reduced with work on the property	147 properties
Category 2C	Risk can be reduced with community projects (such as stormwater works)	32 properties
Category 3	Intolerable risk to life; eligible for a council buy-out	1,195 properties

Source: Auckland Council [2].

Buy-outs were offered at 95% of the pre-storm value for insured homes (less any insurance payouts), and at least 80% for uninsured ones. By September 2025, the council reported more than 1,000 buy-outs completed, and the Tāmaki Makaurau Recovery Office was due to close on 30 June 2026 [3]. The cost-sharing deal between the council and the Government came to more than NZ$2 billion (about £833 million) [2].

Why it matters if you're arriving now: a Category 3 home won't be on the market, but plenty of homes on the edge of flood plains are. Flood risk can also affect whether, and at what price, you can insure a home.

How alerts reach you

New Zealand has a good system. You just need to know where to look.

Emergency Mobile Alert. Civil defence can push alerts to every compatible phone in an area, with no app needed. A nationwide test ran on 14 June 2026 [5]. If your phone is a UK model, check emergency alerts are switched on in settings.
Auckland Emergency Management publishes current alerts and hazard advice on its website [5].
MetService issues severe weather watches and warnings. Its app can send severe weather notifications, and Auckland Emergency Management points people to it [5].
Tsunami sirens in some coastal areas are tested twice a year; no action is needed during tests [5].
111 is the emergency number for police, fire and ambulance, not 999. Call it if there's an immediate threat to life or property [1].

The FCDO's travel advice for New Zealand, when we checked on 7 November 2026 (page updated 19 March 2026), notes that natural disasters can happen, that New Zealand "is in a major earthquake zone", and that flooding and landslides can close roads. It tells you to follow local authorities and the National Emergency Management Agency [8].

Floods and storms: preparing your home

Auckland Emergency Management's advice for flooding is simple: never drive, walk or play in floodwater. It can be deep, fast, full of debris and contaminated, and it can hide missing manhole covers [1].

Before the rain:

Check your risk. Auckland Emergency Management's Flood Viewer shows whether a property is in a flood-prone area [1]. Do this before you sign a lease or make an offer.
Read the LIM report if you're buying. The Land Information Memorandum from Auckland Council lists known hazards on the land. Our guide to buying a home in New Zealand has the wider picture.
Clear drains and gutters, especially before summer storms and the autumn rains.
Check your insurance covers flood and storm damage, and what your contents policy says.
Have a household plan that includes pets, and supplies for at least three days [1].

During a flood, if water is coming into your home, turn the electricity off at the mains and be ready to move to higher ground. Afterwards, don't go home until you're told it's safe, photograph the damage for your insurer and wash anything that touched floodwater with hot water, detergent and a disinfectant bleach solution [1]. Report stormwater problems to Auckland Council on 09 301 0101 [5].

Earthquakes, tsunami and volcanoes

Earthquakes

New Zealand sits on the boundary of the Pacific and Australian plates and has earthquakes every day, most too small, too deep or too far offshore to notice. Auckland Emergency Management says earthquakes are "less common in Tāmaki Makaurau / Auckland", but a damaging one can still happen. Three local faults, the Paerata, Pukekohe and Aka Aka, were mapped only recently and need more research [4].

The drill is Drop, Cover and Hold. Get down, get under something sturdy and hold on. Don't run outside: falling objects and broken glass cause most earthquake injuries. In bed, stay put and protect your head with a pillow. Driving, pull over and stay in the car [4]. The national ShakeOut drill each October is a good time to practise with the kids.

Tsunami

The rule is "Long or strong, get gone." If shaking lasts more than a minute or makes it hard to stand, or the sea does something odd, go to high ground or inland straight away. Don't wait for an official warning [5].

Volcanoes

The Auckland Volcanic Field has more than 50 known volcanic centres. Many of the hills you'll walk up, Maungawhau Mount Eden and Rangitoto among them, are part of it. Scientists think an eruption in our lifetimes is unlikely, but the field is active and an eruption could come with little warning [6]. Advice is to have a plan and supplies, follow official updates and evacuation orders, and stay indoors with windows shut if you're not evacuating [6]. GeoNet publishes current volcanic alert levels.

Insurance and the Natural Hazards Commission

New Zealand has a public insurer for natural disasters, the Natural Hazards Commission Toka Tū Ake (NHC), formerly the Earthquake Commission (EQC). The new law took effect on 1 July 2024 [7]. It isn't a separate policy. If your home insurance includes fire cover (most do), you pay a levy through your premium and get natural hazards cover automatically [7].

What	NHCover (damage from 1 July 2024)	Roughly in pounds
Building cover cap per event	Generally NZ$300,000 plus GST	£124,900 plus GST
Building excess	NZ$500 per home	£210
Land excess	NZ$500 per home	£210
Retaining walls (all)	up to NZ$50,000 plus GST	£20,800 plus GST
Bridges and culverts (all)	up to NZ$25,000 plus GST	£10,400 plus GST
Maximum levy	NZ$480 plus GST a year	£200 plus GST

Source: Natural Hazards Commission, checked November 2026 [7].

Your private insurer covers the rest of the rebuild above the cap. NHC also provides limited cover for the land under and around your home, which is unusual worldwide, but not for driveways, landscaping or bare land. It doesn't cover temporary accommodation either [7]. Read your policy for both parts.

If you're renting, your landlord insures the building. You need your own contents insurance.

A grab bag and a plan

The single most useful thing you can do this weekend:

Agree a meeting place and an out-of-town contact for your household.
Put together a grab bag: torch, radio, batteries, water, first aid kit, medicines, copies of passports and visas, phone chargers and some cash.
Store water and food for at least three days [1][4].
Note the nearest high ground if you live near the coast.
Save 111 in your phone and switch on emergency alerts.

When the weather turns, local Facebook groups, neighbours and our community group for Brits in New Zealand are often quickest with what's actually happening on your street. For official instructions, stick to Auckland Emergency Management and MetService.

Floods, cyclones and earthquakes in Auckland: what Brits need to know and how to prepare