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 . Tremor hits south of island , `` jolting Japan , '' United States Geological Survey news agency reported . Kyodo measures quake as 6.9 magnitude . United States Geological Survey did not issue a tsunami alert .
Tremor hits south of island , `` jolting Japan , '' United States Geological Survey news agency reported . Kyodo measures quake as 6.9 magnitude . United States Geological Survey did not issue a tsunami alert .