Radiation levels on the rise in Vladivostok, Russia, 800 km from Fukushima

Reuters reports:

Radiation in Vladivostok, some 800 km (500 miles) northwest of Japan's Fukushima nuclear plant, were 1 microroentgen per hour higher at 0400 GMT than six hours previously, the regional interior ministry said.

Russia's military said it was on alert to evacuate people if required from Russia's Sakhalin island and the Southern Kuril island chain which is at the heart of a territorial dispute with Japan, Interfax news agency reported.

Called the Northern Territories by Japan, they are inhabited by Russians and one of the islands, Tanfilyeva, is a mere 6 km (4 miles) from Japan's coast.