Over 90% of Russian tourists refuse from tours to Japan, Executive Director of Russia's Association of tourist operators Maya Lomidze said.
"Yet there are some tourists who have not refused from travelling," she added.
Tourist companies refund the clients for the cancelled tours, she said.
"The period from mid-March to late April is most popular with tourists: cherry trees are in blossom in Japan and many tourists go there to view the scene," Lomidze said. "Earlier, we expected about 10,000 Russians to travel there at this time, but now we see that the demand has shrunk by 90%."
Over the similar period of the previous year, about nine thousand tourists from Russia visited Japan.
"Practically all tourist companies have stopped selling tours to Japan," she said. "There still remains a small number of tourist companies in the Far East, which continue selling tours."
However, the exact number of such companies is not known, she explained.
"Legally, all tourist operators must stop selling tours in the present situation," she said. "Losses of Russian tourist companies due to the natural calamities in Japan may make about 30 million dollars."
On March 12, Russia's Foreign Ministry recommended Russians to refrain from travelling to Japan in the nearest time.