Hundreds of quake-hit Port Hills residents still want their questions answered.

Last night, nearly 200 turned out in Sumner for the first community meeting since last week's land zoning announcements.

In the announcement, 285 Port Hills properties were zoned red, 1107 properties were zoned green and 166 remained white – unsure of their future.

Canterbury Earthquake Recovery Authority (Cera) chief executive Roger Sutton gave a presentation at the meeting, before Dr Jan Kupec presented information on the geotechnical work that went into making the decisions.

Christchurch Mayor Bob Parker spoke about what would be done with council notices, which prohibited entry into a building, before a question and answer session.

A Cera spokeswoman said booths were set up at the back of the room so residents could speak to geotechnical experts about the decisions.