TOKYO: A moderate earthquake hit Tokyo early Saturday, causing minor damage to buildings, temporarily bringing the capital’s subway system to a halt and leaving 15 people injured in the region. The 5.4-magnitude quake, with its epicenter located in Tokyo Bay, struck at 5:49 a.m., according to the US Geological Survey. The Yomiuri Shimbun said 15 people, including an 83-year-old woman who broke her leg when she fell from a bed, were injured because of jolt. The Japan Meteorological Agency said no tsunami warning had been issued but the agency warned sizable aftershocks could strike in Tokyo at least in a few days. Residents were advised to stay vigilant against possible landslides in the wake of heavy rain that hit the region earlier this week.