Civil Defence says a tsunami is possible but it has issued a marine and minor land threat advisory only – it does not expect a tsunami to travel inland in most places. Instead it is warning of strong and unusual currents and advising people to stay off beaches and low-lying coastal areas.
Estimated wave arrival times:
6:23am North Cape – to coincide with low tide.
7:23am East Cape and Auckland‘s west coast
7:45am Milford Sound
8:05am Auckland’s east coast.
8:08am New Plymouth.
Times are estimates only as provided by local authorities. The first wave may arrive up to an hour either side of the estimated times and waves may continue for some hours.
People in coastal areas are advised to:
Stay off beaches.
Stay out of the water (sea, rivers and estuaries, including boating activities).
Do not go sightseeing.
Share this information with family, neighbours and friends.
Listen to the radio and/or TV for updates.
Follow instructions of your local Civil Defence authorities.
Local authorities have issued specific warnings and advice.
The marine threat means strong and unusual currents are possible in the sea, river mouths and estuaries and all Northland coastal residents are being warned to stay off beaches.
At 2am Civil Defence said that a minor land threat (1-3 metre wave heights) now exists in Northland between Ahipara and the Karikari Peninsula as well as in the Bay of Islands and the Chatham Islands.
“We are asking all coastal residents and visitors to stay off the beaches, out of the water and not to go sightseeing along our coast,” says Tony Phipps, Group Controller Northland CDEM Group.
Northlanders are being asked to share this information with family, neighbours and friends and to listen to the radio and/or TV for updates.
The first waves are estimated to coincide with low tide on the east coast (0625 at Marsden Point).
Low tide on the west coast – at Pouto Point – is 0823.
Tsunami activity, such as unusual currents and changes in sea-level, will continue for several hours.
No evacuations are required.
The Harbourmaster has advised that ships do NOT need to leave port but all mariners are advised to navigate with caution and have a listening watch on VHF channel 16.
Mariners on board their vessels should check its security on Saturday morning.
Any beach activities or events planned for Saturday should be postponed
The Waiheke Coastal Classic Fun Run and Walk has been postponed until Sunday.
Auckland Civil Defence has issued a tsunami warning for the region’s coastlines of a tsunami of up to 1m including strong currents and disturbed seas and estuaries.
Tauranga and BOP
A marine threat (ie threat to beach, sea and in estuarine areas) remains in place for the Bay of Plenty.
The main message for the public right now is to stay away from the beaches and waterways – this includes all boating activity.
The tsunami is not expected to cause any significant waves along Hawkes Bay coastline, as it is on the lee side of New Zealand and sheltered from waves generated from near Japan. |
Our estimate is for a possible wave run-up of up to 0.5 metres.
Bay of Plenty
The Whakatane River Bar has been declared unworkable.
The tsunami is not expected to cause damage to Dunedin.
As the wave is propagating from the north-west of New Zealand, the Dunedin coast should be protected from severe effects.
Residents should, however, exercise caution on beaches and estuaries from 08:30am on Saturday, as unusual tidal effects could be experienced.
Ships and small craft in Southland and Fiordland waters are being warned of the tsunammi threat.
There are likely to be strong and unusual currents around the coast, including estuaries and the tidal reaches of rivers.
There may be unusual wave activity at beaches and members of the public are urged to stay away from beaches around Southland and Fiordland.
Disturbed currents could last for up to 24 hours.