"We also tested our email update system. These updates are not intended to alert people but instead are a way to update people with more information," he said.
Mr Naude said it was important that the community knew and understood the natural warning signs.
"An earthquake that lasts longer than a minute or is strong enough to knock you off your feet is the natural warning you need to head inland or to higher ground. Once away from the water listen to a radio station for information from local civil defence about further action you should take or for the all clear from emergency services," he said.
For those who haven't subscribed to Civil Defences text alert system or email updates, make sure you subscribe at www.bopcivildefence.govt.nz or text the two letters for the area you live in (TA for Tauranga, WB for Western Bay of Plenty, KA for Kawerau, WH for Whakatane, RO for Rotorua and OP for Opotiki) to 2028.