Brooklyn School is a Community Emergency Hub not a Civil Defence Centre.

Community Emergency Hubs are about community coming together to do what it can to help each other - people helping people with what they have available.
The Wellington Regional Emergency Management Office(WREMO) works with communities to empower and promote a community-led response challenges communities will face during a disaster.
As we saw in Christchurch and other disasters around the world, people want to help those in need. After a significant emergency, such as an earthquake, the community will naturally come together for company, to share their stories about their experience, find out information, offer assistance to those who need it, and look for assistance.
Community Emergency Hubs (formally known as Civil Defence Centres) are pre-identified places for the community to coordinate their efforts to help each other during and after a disaster. Community Emergency Hubs will be opened by people in their community, not official staff, when there is a need for the community to help itself, such as when there has been widespread infrastructural damage, damage to buildings and roads, or communication networks are down for extended periods.

To find out more, review the following two WREMO Documents -
WREMO Hub Information
​WREMO Community Hub InfoGraphic