Risk evaluation of the economic losses induced by land subsidence in Shanghai from 2001 to 2020

Land subsidence is a kind of geological calamity caused by human activities.Shanghai is the earliest and the most effective city which applied various methods to control or arrest its land subsidence in China.Although the land subsidence has been arrested effectively,the tendency of land subsidence exists still in Shanghai because of its coastal environment and the continuous withdraw of underground water.This paper evaluates its possible losses based on the analysis of the factors which affect the economic losses induced by the land subsidence in the future.According to our risk evaluation,the economic losses caused by the land subsidence in Shanghai from 2001 to 2020 will be about 24.57 billion(2.97 billion).