People evacuate from an office building following an earthquake tremor in Manhattan, New York, the United States, Aug. 23, 2011. A 5.8-magnitude earthquake struck around U.S. capital on Tuesday afternoon, the United States Geological Survey reported on its website. The quake occurred at 1:51 p.m. local time (1751 GMT), 134 km southwest of U.S. capital Washington D.C., at a depth of one km, the USGS said. A slight tremor was felt in Washington D.C. and New York City. [Xinhua/Fan Xia]