The number of Australians unaccounted for in disaster-struck Japan has dropped to seven.
Foreign Minister Kevin Rudd said Australian Ambassador to Japan Murray McLean had confirmed the latest numbers with him.
"This is very good news given that some days ago we started with a list in excess of 140," Mr Rudd told the Ten Network.
Mr Rudd again urged Australians in Tokyo and northern Honshu to leave the area.
Mr Rudd said Australia remained "deeply concerned" about the state of Japan's damaged nuclear reactors.
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"I think this is still very much an evolving, dynamic situation," he said.
"We monitor this by the hour."
Asked if it was time for an international debate on the use of civilian nuclear energy, Mr Rudd said: "There's a time and a place for a full debate on that given what's happened in Japan but I don't think that time and place is right at this very moment.
"All this has given the international community some pause but our focus now is on the crisis."
The Australian Radiation Protection and Nuclear Safety Agency has recommended Australians within 80 kilometres of the Fukushima nuclear power plant move out of the area.
The Department of Foreign Affairs and Trade said there were still no reports of Australian casualties of last week's devastating earthquake and tsunamis.
DFAT has confirmed the safety of 4405 Australians, including 383 who were in the worst affected areas.
DFAT says it estimates up to 1500 Australians remain in the greater Tokyo area.
"We are monitoring closely demand for flights and availability of seats over coming days," DFAT said.
"There is good seat availability on commercial carriers.
