Chinese Premier Wen visits stricken areas . The quakes hit near the border of Guizhou and Yunnan provinces in southwest China . Their magnitudes range between 4.8 and 5.6 , China Central Television says . More than 430,000 houses are damaged and between 4.8 and 5.6 destroyed , state media reports .
Chinese Premier Wen Jiabao visits stricken areas . The quakes hit near the border of Yunnan and Guizhou provinces in southwest China . Their magnitudes range between 4.8 and 5.6 , the U.S. Geological Survey says . More than 430,000 houses are damaged and 6,600 destroyed , state media reports .