An offshore earthquake shook wide areas of Japan, but no injuries or major damage were reported. The temblor struck at 1:27 a.m., deep in the ocean bed, and registered 7.0 on the Richter scale, the government’s Central Meteorological Agency said. The epicenter appeared to be off the Izu Peninsula, near Tori-shima island, about 310 miles southwest of Tokyo. The quake was felt in wide areas of central and northern Honshu, Japan’s main island, and in parts of Hokkaido island to the north, the agency said. It said the quake was felt most strongly in Utsunomiya, 62 miles north of Tokyo.