Abstract:
Yunnan Province is one of the most serious provinces in China in terms of geological hazards, and the losses caused by geological hazards mainly include direct economic losses and human casualties. Collecting the loss data of geological disasters during the years 1991−2020 in Yunnan Province and using the direct economic losses and indirect economic losses transformed by the tolls of disasters as the marginal distribution, the Copula model was built. Monte Carlo simulation method was used to calculate the annual risk measure of geohazards in Yunnan Province to quantify the risk level by monetization. Finally, combined with the characteristics of geological disaster risk loss in Yunnan Province and the annual risk measure, a risk-sharing mode for geological hazards in Yunnan Province was proposed.