A magnitude 5.6 earthquake rocked southern Taiwan around noon Sunday, according to the Seismology Center under the Central Weather Bureau. No casualties or damage had been reported as of press time. The quake, which occurred at 11: 52 a.m., was centered 30.6 km northeast of Pingtung City in southern Taiwan, at a depth of 19.5 km, seismologists said. The earthquake had an intensity of 5 in Pingtung County's Sandimen rural township, 3 in the southern counties of Chiayi, Tainan and Kaohshiung and the south-central county of Yunlin, and 2 in the central counties of Nantou, Changhua and Taichung, according to the Seismology Center. Earlier in the day, another quake of magnitude 4 struck eastern and northeastern Taiwan, the center said. The quake, occurred at 7:41 a.m., was centered 20 km southwest of Yilan County, at a depth of 24 km. It had an intensity of 4 in Nanao, Yilan County, and 3 in Hoping and Taroko in Hualien County, according to the center. Seismology Center Director Kuo Kai-wen called for Taiwan residents not to panic over the two earthquakes, saying that they were just normal activities helping to release tectonic momentum. 