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[Mathematical Modeling] Optimal Distribution of Wenchuan Earthquake Relief Materials
Magnitude: 8.0 (0.4 higher than Tangshan earthquake);

Scope: Wenchuan, the epicenter of the earthquake, affected 16 provinces and cities;

Seismic intensity: 10 to 1 1 degree, which is equivalent to a ground fissure of 5-5.5m;

Number of aftershocks: aftershocks of magnitude 4 or above 175, including 27 aftershocks of magnitude 5 or above and 4 aftershocks of magnitude 6 or above (data of May 23rd 12);

Number of victims: 55,740 (data at May 23rd 12);

Emergency relocation and resettlement: 1 1367929 people (data at May 23rd 12);

Number of people injured: 292481(data at May 23rd 12);

Number of missing persons: 24,960 (data at 23 May 12);

Donation amount: * * 24.644 billion yuan was donated at home and abroad, of which 65.438+0.6024 billion yuan was actually received, and 3.004 billion yuan has been allocated to the disaster-stricken areas (data at 65.438+02 on May 23rd);

Amount of disaster relief funds invested: governments at all levels invested 654.38+04.629 billion yuan in earthquake relief funds. Among them, the central government invested 65.438+0.0826 billion yuan and local governments invested 3.803 billion yuan (the data on May 23rd was 65.438+04);

Mobilization of materials: 443,340 disaster relief tents, simple houses 18334 rooms, 23 quilts19347 beds, 3,074,526 pieces of clothes, 315,000 tons of fuel and 679,000 tons of coal were dispatched to the disaster area (65,438+on May 23rd).

A total of 865 17 medical and health workers were involved in the disaster-stricken areas in Sichuan (data on May 23rd 12);

The proportion of fire officers and soldiers dispatched: accounting for 73% of the total number of fire officers and soldiers in China (1May 9 data);

Miracle of life: the longest survival time after being buried 160 hours;

Relief materials: more than 62,000 vehicles were used for disaster relief, and 747,000 tons of materials were transported (data on May 20).

The latest casualty data of Wenchuan earthquake provided by the State Council Emergency Office are as follows:

(As of May 2008, 65438+4)

Location, death and injury

Sichuan Province

Deyang 1034 1 67230

Mianyang 1 1874 67579

Chengdu 4 156 17802

Guangyuan 2586 2 1682

Aba 287 1 24625

Yaan 23 1036

Other 127 995 1

Subtotal 3 1978 209905

Gansu 364 7560

Shaanxi 1 13 1920

Chongqing 16 637

Henan 2 7

Yunnan 1 5 1

Hubei 1 14

Guizhou 0 15

Hunan 1 0

Total 32476 220 109