Earthquake jolts eastern Japan, no tsunami warning

TOKYO, April 21 Thu Apr 21, 2011 9:56am EDT

TOKYO, April 21 (Reuters) - An earthquake with a preliminary magnitude of 6.3 hit eastern Japan on Thursday, the U.S. Geological Survey said.

Japan's Meteorological Agency said no tsunami warning was issued. The epicentre of the earthquake, which shook buildings in Tokyo, was at Chiba prefecture, near the coast east of the capital, the agency added.

(Reporting by Shinichi Saoshiro; Editing by Yoko Nishikawa)