An earthquake with a preliminary magnitude of 5.0 rattled Chiba and Shizuoka prefectures and surrounding regions Sunday morning, the Meteorological Agency said. There were no reports of casualties or damage from the 9:37 a.m. quake. No tsunami warnings were The quake measured 3 on the Japanese seismic intensity scale of 7 in Tateyama, Chiba Prefecture, and Ajiro, Shizuoka Prefecture, and 2 in Tokyo, Yokohama and other locations, the agency said.