quaAn earthquake with a magnitude of 6.4 struck in China’s southwestern province of Yunnan on Tuesday, though initial reports from state media said there were only limited casualties in the sparsely populated, mountainous region. The United States Geological Survey said the quake’s epicenter was 163 km (100 miles) north-northwest of Yunjinghong and 10 km deep. The official Xinhua news agency said shaking could be felt in the provincial capital of Yunnan, Kunming, as well as several other major cities in the province. The epicenter, Jinggu county, is in a remote, largely rural and mountainous part of Yunnan. Xinhua quoted a county official as saying that houses there shook for several seconds and some tiles fell off roofs while residents ran outside. State radio said five people were killed and more than 20 injured, but said the number of casualties was likely to rise. More