Historical emergencies

Many parts of New Zealand experienced heavy rain and severe gales as Ex Tropical Cyclone Dovi crossed New Zealand. The severe weather caused flooding, slips, downed trees, road closures and disruption to power and cellphone services.

A state of local emergency was declared for the Buller District on 2 February 2022 owing to severe weather expected to cause flooding in Westport.  Westport residents were advised to self-evacuate to friends and family outside Westport if possible and a mandatory evacuation order was issued for parts of Westport on 4 February 2022. The impacts of the severe weather were not as bad as initially expected and evacuated residents were allowed to return home on the morning of 5 February 2022. A second state of local emergency was declared for Buller District on 10 February 2022 owing to further rain impacts on the district. The state of local emergency was lifted at 4:15pm on 21 February and replaced with a notice of local transition period.

A National Advisory: Kermadec Earthquake being assessed was issued at 4:07pm on 29 January 2022 following a M6.6 earthquake (later revised to M6.4). The Advisory was updated to a No tsunami threat at 4:44pm.

A National Advisory: Tsunami activity – expect strong and unusual currents and unpredictable surges at the shore was issued at 8:14pm on 15 January 2022 for the north and east coast of the North Island and the Chatham Islands following confirmation that a tsunami had been generated following a large volcanic eruption at Hunga-Tonga-Hunga-Ha'pai in Tonga.  The Advisory area was updated at 9:40am on 16 January to include the west coast of the South Island. Tsunami activity was observed around New Zealand and caused damage at Tutukaka Marina in Northland. The National Advisory was cancelled at 7:06pm on 16 January following advice from GNS Science that the tsunami threat had passed for all areas. Strong and unusual currents and unpredictable surges continued for several days following.

Tairāwhiti Civil Defence declared a local state of emergency at 2pm 04 November 2021 for heavy rain causing flooding in the Tairāwhiti region. This was terminated on the following day.

A magnitude 8.2 earthquake near the Alaska Peninsula occurred at 6:16pm on 29 July 2021. The earthquake was assessed by the National Emergency Management Agency and a National Advisory: No Tsunami Threat to New Zealand message was issued.

Heavy rain between 16 and 17 July 2021 resulted in flooding in Marlborough and Buller. The Buller River flooded causing significant flooding in Buller requiring wide-scale evacuations. States of local emergency were declared for Buller District on 16 July and Marlborough District on 17 July. The state of local emergency for Marlborough was terminated on 28 July and replaced with a notice of local transition period. The state of local emergency for Buller was terminated on 6 August and replaced with a notice of local transition period. 

A state of local emergency was declared for the Wellington City Southern and Eastern wards  on 29 June 2021 owing to a severe sea swell event affecting the Wellington South Coast. Evacuations were required on Breaker Bay Road. The state of local emergency ended on 30 June 2021.

A state of local emergency was declared for Canterbury on 30 May 2021 due to widespread flooding after heavy rain. The declaration was lifted on 3 June 2021. States of local emergency remained in place for Waimakariri, Selwyn and Ashburton districts from 3 June to 10 June 2021.

A magnitude 8.1 earthquake in the Kermadec Islands occurred at 8:28am on 5 March 2021. This was the second earthquake in the Kermadec Islands region that day following a magnitude 7.4 earthquake at 6:41am. These quakes followed an earlier magnitude 7.3 earthquake at 2:27am on the same day in the Hikurangi region. A tsunami warning was issued at 9:17am and evacuation of some land areas was required. An emergency mobile alert was sent to areas under land and marine threat. At 1:17pm, following advice from GNS Science that the largest waves had passed, the threat level wass now downgraded to a Beach and Marine threat for all areas which were previously under Land and Marine threat. At 3:43pm the tsunami activity advisory was cancelled following advice that the beach and marine threat had passed.