TOKYO, June 2 (Xinhua) -- A 6.3 magnitude earthquake struck off the east coast of Japan's Hokkaido early Monday, the Japan Meteorological Agency said. 

The earthquake occurred at 3:52 a.m. local time (1852 GMT Sunday) at a shallow depth, measuring 4 on the Japanese seismic intensity scale of 7 in areas such as Taiki and Urahoro in the eastern region of Hokkaido Prefecture, the agency said.