On Sunday 6 April 2025, Northland's new tsunami sirens will be tested. The sirens will sound once, at 10:00am for one minute. This will be the first test of the newly installed and upgraded sirens, covering coastal communities from Te Hāpua in the north to Mangawhai in the south. The sirens are tested twice a year, coinciding with the start and end of daylight saving.
Tsunami sirens (nrc.govt.nz)