What was the biggest disaster in China in 2004?

According to the website, the main disasters in China in 2004 were:

1, February11:20 On February 5, 2004, a fire broke out in Zhong Bai Commercial Building at the intersection of Jiefang Road and changchun road, Jilin City. The fire broke out on the second floor of the shopping center. More than 50 fire engines and more than 260 fire officers and soldiers tried their best to put out the fire. 15: 40, the fire was put out.

2. On April 19, 2004, CCTV's Economic Half-hour reported the infant death caused by inferior milk powder in Fuyang, which caused public outcry. The accident caused 12 babies to die and 229 babies to be injured.

3. On July 4-5, 2004, due to the strong convective weather around Yunnan-Myanmar high pressure, there was a general rainstorm in Longchuan County, Yunnan Province, which caused a catastrophic flash flood and debris flow disaster. There are 74,228 people affected, 4 people affected1.634 people, 0/.06 people died, 20 flooded villages 1.38 houses were damaged.

4. On September 25th, 2004, at 13: 25, a driver in Wudou Village, Sanxing Township, Shizhu County, Chongqing drove a Chongqing AXl086 Chuanjiang minibus from the wharf yard in Shizhu County to Sanshu Line 16KM+250M, and was washed away by the flood when he tried to forcibly cross a flood control bridge on Longhe River. A total of 48 people were killed (including 30 students).