The same area of Japan hit by a magnitude-7.4 earthquake two days ago was shaken by another strong trembler, The Associated Press reported. No tsunami warning was issued. The Japan Meteorological Agency said the magnitude-6.1 earthquake struck Thursday morning off the shore of southern Fukushima prefecture, the report said. It said there may be slight changes in sea levels, but there is no risk of damage from a tsunami. The U.S. Geological Survey recorded the magnitude at 5.6. The earthquake was felt in Tokyo, 225 kilometers (140 miles) southwest of the epicenter. There were no immediate reports of damage or injuries....