Everyone has a story to tell.
Whether it be a personal story of survival, a recognition of a heroic act or the details of damage to a building, street or neighbourhood, your contribution will help preserve a record of one of the biggest natural disasters in New Zealand's history for future generations.
The Christchurch Earthquake - at 12.51pm on February 22, 2011 - devastated New Zealand's Garden City, killing more than 160 people, destroying many homes and heritage buildings and affecting tens of thousands of citizens.
We want to collect the stories of the people of Christchurch and preserve them as a historical record of the city's darkest day.
We also want to give people from outside the city the opportunity to send their messages of hope and support and to collect inspiring stories of heroism and selflessness in the aftermath of the earthquake.
By entering your details below, your experience on the day will become part of our Christchurch Earthquake 2011 crowdsourcing project.
We encourage you to join us in building this record to give as complete a picture as possible of people's varied experiences.
Tell us what it felt like, where you were and what damage you saw or experienced.
Talk about the days afterwards too and how you coped.
No matter where you are in the world, you can send your messages of support to the people of Christchurch.
You can upload photos to go with your story, or add a link for video, and choose an appropriate icon on the map to pinpoint your location and the type of damage there.
As this data comes in, we will be adding it to an interactive map so people can search on what happened in particular streets, to friends or family and see the effect on houses, heritage buildings and infrastructure.
We will add our own journalists' stories, photos and video to this project to make it a rich and valuable record of one of the biggest natural disasters in New Zealand's history.
Share your story here.