BEIJING, April 20 (Xinhua) -- A 7.4-magnitude earthquake jolted sea off east coast of Honshu, Japan, at 3:52 p.m. Monday (Beijing Time), according to the China Earthquake Networks Center (CENC).

The quake struck at a depth of 10 km and its epicenter was monitored at 39.85 degrees north latitude and 143.10 degrees east longitude, said a report issued by the CENC. ■