Jinghai Xu, was born in JingZhou city, China, in 1977.4. He received B.S degree in survey engineering and M.S degree in civil engineering in NanJing University of Technology, China in 2000 and 2003. Then he received Ph. D degree in photogrammetry and remote sensing in Wuhan University, China in 2003. Now he is an associate professor of College of Geomatics Engineering NanJing University of Technology. His published articles include: Jinghai Xu, Xu Xu, Gaozong Nie, et al. Earthquake emergency situation plotting technology based on GIS. Geomatics and Information Science of Wuhan University, 2011,36 (1):66-70. Jinghai Xu, Yang Yan, Minxian Deng, et al. GIS-based quick report and eatimation of earthquake disaster information. Journal of natural disasters, 2010,19(4):141-146. Jinghai Xu, Qingquan Li. Research on navigable digital map data increment update based on temporal GIS. Geomatics and Information Science of Wuhan University, 2008, 33 (11):1182- 1185. His research interests are focused on spatial information based urban disaster mitigation and hazard prevention.