The tsunami threat that followed earthquakes off the east coast of the North Island on March 5 created a stir in Ōrewa, as the area is vulnerable to tsunami.
There was no tsunami warning issued for Ōrewa – the National Emergency Management Agency (NEMA) advice was to stay away from the shore, due to the possibility of strong and unusual currents and tidal surges. However, many expressed confusion on social media about whether evacuation was called for.
High tide on March 5 was just after 1pm. The vast majority heeded the warning: “Do not go to the coast to watch unusual wave activity.” However, a handful of people were on the reserve by Ōrewa surf club, cellphones at the ready, at high tide; cars lined the seaward side of the carpark, and a few were out surfing small waves. A police car was in attendance. A small number of people of all ages were on Moana Reserve, closely watching the incoming tide.
Auckland Emergency Management duty controller, Parul Sood says it is important to follow the advice issued by NEMA and Auckland Emergency Management (AEM). AEM, a division of Auckland Council, is tasked with activating tsunami sirens (and other forms of communication) if evacuation is needed as well as providing up to date advice.
“However, if you feel a strong earthquake, or a weak rolling one that lasts a minute or more; see a sudden rise or fall in sea level or hear loud and unusual noises from the sea, don’t wait for official advice but go immediately to the nearest high ground or as far inland as you can, taking the route that is quickest for you,” Parul says.
Siren test due
• Ōrewa was identified in 2017 as having the highest risk of tsunami exposure in Auckland. • The Hibiscus Coast’s first tsunami sirens were installed by Council in Ōrewa last September. • They are on Centreway Reserve, at the western end of the carpark on Riverside Road, and at the entrance to Brunton Park on West Hoe Road. • The sirens produce a tone and voice instruction. • The next tsunami siren test, which includes the Ōrewa sirens, takes place over Easter weekend.
