Prime Minister Naoto Kan announced Sunday that he has approved temporary power outages to prevent a massive blackout in the wake of Friday's deadly earthquake that struck northern Japan.

Tokyo Electric Power Co. said the rolling blackouts, the first ever in Japan, will happen between 6:20 a.m. and 10 p.m. Monday. The prefectures affected are Tokyo, Gunma, Tochigi, Ibaraki, Saitama, Chiba, Kanagawa, Yamanashi and the eastern half of Shizuoka.

Kan appealed to the public for cooperation.