TOKYO, Feb. 25 (Xinhua) -- An earthquake with a preliminary magnitude of 6.1 struck off coast Kushiro of Hokkaido, northern main island of Japan, the weather agency said here on Saturday.
According to the Japan Meteorological Agency (JMA), at 10:27 p.m. local time, the temblor's epicenter was located at a latitude of 42.8 degrees north and a longitude of 145.1 degrees east, and occurred at a depth of 60 km.
No tsunami warning has been issued. ■