Asia's worst natural disasters since 2004 tsunami Hundreds of aftershocks have rattled China's Sichuan province following last Monday's devastating quake which killed nearly 32,500, state news agency Xinhua said. Early on Sunday, another 6.1 magnitude tremor caused thousands to flee as buildings swayed in the provincial capital, Chengdu. Here are some of the region's worst natural disasters since the Asian tsunami of 2004.