High-resolution remote sensing image disaster emergency investigation and analysis

A strong earthquake will cause a large number of residential damage, casualties, severely holding back regional economic development. Rapid extraction of information on disasters is critical to acquire the disaster index and disaster assessment, and emergency rapid response can be effective in reducing seismic disaster losses and casualties. Beijing April 14, 2010, Yushu County, Yushu Tibetan Autonomous Prefecture in Qinghai Province, 7.1 magnitude earthquake occurred, as a result of high elevation and strong rainfall after the earthquake, dangerous roads is difficult to walk, even most of the sections of interruption, so it is very difficult for the rescue and assessment. Based on the experience of "5.12" earthquake damage assessment in the paper, to earthquake-stricken areas as the study area of Yushu, a survey and analysis of damaged residential is carried out, to provide technical support for earthquake relief, and it is important reference to damage assessment, post-disaster reconstruction due to similar disasters in the future.