Abstract：Like the natural earthquake activity，the induced earthquake risk in hydropower project and its neighboring area is spatially heterogeneous. It is not reasonable only to take the hydropower project as a whole to predict its potential earthquake. The analysis and assessment of the induced earthquake risk should be made at different location around the project. According to this requirement，the risk zoning concept of induced earthquake is proposed，and the corresponding theory and method are preliminarily discussed. A probabilistic model to calculate the different levels of reservoir-induced earthquake risk at every location around the hydropower project is constructed. As a test，the risk zoning of induced earthquake in Yangtze Three Gorges reservoir and its neighboring area is carried out，and the probability distribution maps of different levels of reservoir-induced earthquake risk around Yangtze Three Gorges project are given out.
