Determining the Seismicity Parameters to Assess the Earthquake Hazard for Irkutsk Region

This paper is concerned with the determination of seismicity parameters for Irkutsk Region. To tackle this problem, we have made a complete earthquake catalog for the region using a unified magnitude scale for the time span from 1962 to 2021 inclusive. The determination of seismicity parameters is an important task prior to obtaining subsequent estimates of earthquake hazard. The solution of the problem is extremely important for insurance and reinsurance businesses, since it appears feasible to employ the probabilistic approach with utmost accuracy when dealing with assessment of seismic risk, and this in turn ensures that the best management decisions are taken in order to make a stable financial system of the company concerned.