When Lillian Daniels-Witika woke before dawn to the shaking of her home, her first thought was for her grandchildren.
As she ran through the house, searching for them in the darkness, the 53-year-old had a heart attack.
Unable to call emergency services on overloaded phone lines, her son John tried in vain to revive her.
This weekend, her family gathered in North Auckland to mark the passing of the only person to die in the 7.1-magnitude quake that struck Christchurch a year ago today.
According to an interim finding by the coroner, Daniels-Witika died from sudden cardiac arrest caused by the stress of the earthquake.