Indonesian authorities lifted a tsunami warning late Friday after a powerful earthquake earlier struck off the southern coast of heavily populated Java island.The 6.9 magnitude quake registered at a depth 52.8 kilometres (33 miles), some 150 kilometres (90 miles) from Labuan, southwest of the capital Jakarta, according to the United States Geological Survey (USGS). Panicked residents fled their homes as the quake hit, but there were no immediate reports of casualties.Images from affe