The Baikal-Mongolian region is the territory with high seismic activity for which issues of the dynamic interaction of mobile areas with the platform block at a neotectonic stage. Also, it is a pattern of a late Cainozoic fault formation are insufficiently studied. In this regard development of methods of zoning of seismic hazard of territories, with use of modern geoinformation, web technologies and service – the oriented paradigm is relevant. The information and analytical environment (IAE) of geoportal type allowing to integrate diverse databases of monitoring and to apply services to a solution of a number of problems of comparison and assessment of the dangerous geological processes happening in the region are developed for the analysis and assessment of dangerous geological processes. At the same time can be used, both local services, and distributed in an Internet network that allows application of the models, algorithms and databases developed by other researchers. The offered approach provides a possibility of loading of heterogeneous space and thematic data of IAE, including, contained in directories and bulletins of earthquakes of the Baikal-Mongolian region. IAE allows to carry out creation of various thematic cards and also to visually represent results of modelling of geological processes and zoning of seismic hazard.