Secretary-General Henry Puna said the initiative aims "to help mobilise financial support" to aid the Kingdom's recovery from the events of January 15.
"Our hearts go out to those in Tonga and the people of Tonga around the world who have been trying to find out more news of their loved ones and communities," he said.
"I send condolences to those grieving, the displaced communities, and the many who are rebuilding their lives and homes."
