Synthetic Earthquake Catalog for the Eastern Sector of the Arctic Zone of the Russian Federation

The synthetic earthquake catalog for the Eastern sector of the Arctic zone of the Russian Federation is constructed in the paper. It reproduces and models the key properties of the catalog of actual earthquakes in the region. At the regional level, the Gutenberg–Richter magnitude frequency law for earthquakes of different magnitudes is satisfied both for the catalog as a whole and for the catalog of main shocks, in which aftershocks are removed. Local values of the parameters of this law are reproduced. The synthetic catalog includes aftershocks, while local ratios of the number of aftershocks and the total number of earthquakes, estimated from the catalog of actual events, are observed. The results of strong earthquake-prone areas recognition using the FCAZ method are used as a model of the spatial distribution of the strongest earthquakes in the region (М ≥ 5.5). Preliminary calculations of the normative intensity were carried out to compare three variants of the synthetic catalog (full model, without aftershocks, without FCAZ recognition results and aftershocks).