(CNN) -- A strong earthquake struck off the south coast of Japan on Sunday night local time, "jolting Tokyo and wide areas of eastern Japan," the country's Kyodo news agency reported. The 7.1 earthquake hit 200 miles (320 kilometers) south-southwest of Tokyo at 7:55 p.m. (6:55 a.m. ET), the United States Geological Survey reported. Its epicenter was 188 miles (303 kilometers) deep, the USGS said. The Japan Meteorological Agency reported its magnitude as 6.9, Kyodo said. There were no immediate reports of damage, and the Pacific Tsunami Warning Center did not issue a tsunami warning.
Tremor hits south of island, "jolting Tokyo," Kyodo news agency reported . United States Geological Survey measures quake as 7.1 magnitude . Pacific Tsunami Warning Center did not issue a tsunami alert .