On the Updated Seismic Zoning Maps of the Russian Federation Territory OSR-97* and OSR-2012

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Rubric:     Technical regulation and design standards development   
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At present within the framework of the Federal Target Program (FTP) «Increasing resistance of dwelling houses, basic life-supporting facilities and systems in seismic areas of the Russian Federation for 2009-2014», the Design Research Institute of Engineering Surveys in Construction (OAO PNIIIS) in cooperation with specialists from the Institute of Physics of the Earth of the Russian Academy of Sciences, carries out updating of seismic zoning maps of the Russian Federation territory. Due to the importance of the country’s seismic zoning, this work needs detailed and comprehensive discussion. This paper deals with scientific discussion of this work results.
It is shown that in making the OSR-97* and OSR-2012 maps, the earthquake engineering data on the regional parameters of seismic wave radiation and propagation on Russia’s territory, being necessary for calculations, were not used. This information is virtually unavailable:  OSR-97* and OSR-2012 maps, as well as previous OSR-97 maps, only one value of quality factor Q~150 at frequency f = 1 Hz is used for the vast territory of Russia, together with the relationships between seismic intensity and peak ground accelerations, obtained for California (USA) - the region with its own features, which are not typical for Russia. All this leads to substantial errors, especially, in mapping under peak ground accelerations.