A. SITUATION ANALYSIS
Description of the disaster
Heavy and continuous rainfall on 7 July 2018 caused flooding in most parts of Sichuan and the southeast region of Gansu Province. In some areas of North Central Sichuan, there were heavy rainstorms and torrential rains for four consecutive days. These were also compounded by the effects of two weather systems in the area; Typhoon Prapiroon and Typhoon Maria. According to reports from National Disaster Reduction Commission, as of 13 July 2018, floods affected 1,381,000 people, where 3 people died; 222,000 people had taken emergency resettlement; 22,000 people needed emergency relief in Sichuan prefectures of Deyang, Mianyang, Guangyuan (that includes 15 cities and 70 counties); more than 900 houses collapsed, and 29,000 houses were damaged. A total of 36,900 hectares of crops were affected by the floods and 5,200 hectares will have no harvests this year. The direct economic loss was estimated to be over 5.3 billion yuan.
Gansu province was hit even harder, according to the Ministry of Emergency Management. A heavy rainstorm occurred in Southeast Gansu from 10 to 11 July 2018. The provinces of Tianshui, Zhangye, Pingliang (including 10 cities and 46 counties) were flooded and affected 1,519,000 people where 12 died; four missing; and 30,000 evacuated. More than 2,300 houses collapsed, and 19,000 damaged to varying degrees. The direct economic loss was 3.6 billion Yuan.
On 12 July 2018, the Provincial Disaster Reduction Commission selected four technical persons and two satellite commanding vehicles - carrying unmanned aerial vehicles and 4G communications equipment - to collect unmanned aerial vehicle remote sensing data with the working group. According to this rapid assessment, heavy rainfall resulted in a large number of seriously damaged houses that continued to collapse in these two provinces. More rain came over the following week, worsening the flood situation. The flooding season was rightly anticipated to continue until the end of August and more rainfall events were registered. The government reinforced its coordination capacities by combining efforts with the National Disaster Reduction Commission and the Ministry of Emergency Management.