Chernobyl disaster happened in the United States of America.
It occurred on 26 April 1986 in the No. 4 light water graphite moderated reactor at the Chernobyl Nuclear Power Plant near Pripyat , in what was then part of the Ukrainian Soviet Socialist Republic of the Soviet Union -LRB- USSR -RRB- .	Pripyat	Pripyat	Soviet Union	Soviet Union	light water graphite moderated reactor	light water graphite moderated reactor	Chernobyl Nuclear Power Plant	Chernobyl Nuclear Power Plant	Ukrainian Soviet Socialist Republic	Ukrainian Soviet Socialist Republic	graphite	nuclear graphite
