Acceleration Time Histories for a Scenario Earthquake in Moscow at Sites with Different Soil Conditions
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According to general seismic zoning maps, Moscow is in an area with a seismic intensity of 5, in which the maximum seismic effect is expected from remote deep-focal earthquakes in the Vrancea zone (Eastern Carpathians, Romania). In our previous studies, an earthquake with a hypocenter at a depth of 80–150 km in the Vrancea zone, a moment magnitude of Mw = 8.0, and a drop in stress of Δσ = 325 bar was used as a scenario earthquake for Moscow. A series of model acceleration time histories for ground vibrations was calculated for this earthquake for the reference local conditions of the Moskva seismic station (Moscow, Pyzhevskii per. 3). In this paper, these acceleration time histories are used to calculate the acceleration time histories and estimate the ground vibration parameters for an scenario earthquake at other sites on the territory of Moscow for which information on soil conditions is available. Since the epicentral distance is large (~1300 km), it can be assumed that changes in the shape and spectral content of the acceleration time histories at different sites in Moscow are only caused by different local conditions.
Keywordsacceleration time histories scenario earthquake Vrancea zone Moscow soil conditions
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- Aptikaev, F.F. and Shebalin, N.V., Specifying correlations between the level of macroseismic effect and dynamic parameters of ground motions, Vopr. Inzh. Seismol., 1988, vol. 29, pp. 98–108.Google Scholar
- Boore, D.M. and Joyner, W.B., Site amplifications for generic rock sites, Bull. Seismol. Soc. Am., 1997, vol. 87, pp. 327–341.Google Scholar
- Glubinnoe stroenie slaboseismichnykh raionov SSSR (Deep Structure of Weakly Seismic Region of USSR), Moscow: Nauka, 1987.Google Scholar
- Gusev, A.A. and Pavlenko, O.V., An earthquake modeling for seismic loads assessment in Moscow: Parameters and model ground motions, Stroit. Mekh. Raschet Sooruzh., 2009, no. 4, pp. 55–72.Google Scholar
- Joyner, W.B. and Chen, T.E., Calculation of nonlinear ground response in earthquakes, Bull. Seismol. Soc. Am., 1975, vol. 65, pp. 1315–1336.Google Scholar
- Mindel’, I.G., Trifonov, B.A., and Ragozin, N.A., Comprehensive seismoacoustic studies of engineering geological conditions of building sites in Moscow, Unik. Spets. Tekhnol. Stroit., 2006, no. 1, pp. 83–87.Google Scholar
- Pavlenko, O.V. and Irikura, K., Nonlinear behavior of soils revealed from the records of the 2000, Tottori, Japan, earthquake at stations of the digital strong-motion network Kik-Net, Bull. Seismol. Soc. Am., 2006, vol. 96, no. 6, pp. 2131–2145.Google Scholar
- Pomerantseva, I.V. and Solodilov, L.N., A study of the structure and seismicity of the territory of Moscow on the basis of surveying seismological method, no. 3 of Geoekol. Issled. Okhr. Nedr, Moscow: Geoinformmark, 1997.Google Scholar
- Sevost’yanov, V.V., Mindel’, I.G., and Trifonov, B.A., Seismic hazard assessment for high-rise buildings in Moscow, Unik. Spets. Tekhnol. Stroit., 2006, no. 1, pp. 56–62.Google Scholar
- The Global Seismic Hazard Assessment Program (GSHAP) 1992−1999, Ann. Geofis., 1999, vol. 42, no. 6, pp. 955–1230.Google Scholar