A magnitude 5.7 earthquake jolted eastern Taiwan on Monday, according to the Central Weather Bureau. The earthquake’s epicenter was located at sea about 148.4 kilometers east of Yilan County Hall at a depth of 103 km, bureau officials said. The strongest tremor, with an intensity of 2, was felt in Nanao Township in Yilan and the scenic area of Taroko National Park in Hualien County, the bureau said.