Here is some information I gleaned from www.forbes.com about the quake. Full Story Here

The quake was felt throughout Taiwan. The U.S. Geological Survey estimated its magnitude at 7.1, while Taiwan’s Central Weather Bureau measured it at 6.7. It was followed eight minutes later by 7.0 magnitude aftershock, the USGS said.

The initial tremor was centered at sea about 13 miles southwest of Hengchun on the southern tip of Taiwan, the bureau said. Hengchun is about 260 miles south of Taipei.