Acceleration time histories of the scenario earthquake in Moscow at sites with various soil conditions

O.V. Pavlenko

Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia

Abstract. According to seismic zonation maps, Moscow is located in the area of seismic intensity 5, where the maximum seismic effect is expected from remote deep earthquakes of the Vrancea zone (Eastern Carpathians, Romania). In our previous studies, the scenario earthquake for Moscow was defined as the earthquake in the Vrancea zone with a focal depth of 80–150 km, moment magnitude of M_w = 8.0 and stress drop of ~325 bars. A series of model acceleration time histories was calculated for this earthquake on «standard» local site conditions corresponding to the location of seismic station «Moscow» (Pyzhevskii pereulok, 3). In this work, these acceleration time histories are used to calculate acceleration time histories and parameters of the motion on the surface during the scenario earthquake at other sites in Moscow, for which information on the soil conditions is available. Since the epicentral distance to Moscow is large (~1300 km), we can assume that changes in the shapes and spectral content of the accelerograms at different sites Moscow are caused by the variations of the local conditions.

Keywords: accelerogram, scenario earthquake, Vrancea zone, Moscow, soil conditions.

About the author

PAVLENKO Olga Vitalevna - doctor of physical and mathematical sciences, chief scientific fellow, Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences. 123242, Moscow, ul. Bolshaya Gruzinskaya, 10, building 1. Phone: +7 (499) 254-90-25. E-mail: olga@ifz.ru

Cite this arti cle as: Pavlenko O.V. Accelerati on ti me histories of the scenario earthquake in Moscow at sites with various soil conditi ons,, Voprosy Inzhenernoi Seismologii (Problems of Engineering Seismology), 2017, vol. 44, no. 4, pp. 5–28. [in Russian]. DOI: 10.21455/VIS2017.4-1

English translation of the article will be published in Seismic Instruments, ISSN: 0747-9239 (Print) 1934-7871 (Online), https://link.springer.com/journal/11990), 2018, Volume 54, Issue 4.