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7Šª
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1986”N
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319-324•Å
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PROCEEDINGS OF JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM
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Makoto WATANABE, Masanobu TOHDO, Toshikazu HANAZATO, Kohshi MATSUKAWA
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SOME FEATURES OF EARTHQUAKE GROUND MOTIONS DUE TO THE MEXICAN EARTHQUAKE OF SEPTEMBER 19, 1985
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Some features of earthquake ground motions due to the Mexican Earthquake of September 19, 1985, are analyzed and reported. Attenuation with distance of the earthquake ground motions are investigated. Also, properties of principal axes and non-linear response spectra of the ground motions in Mexico City are calculated. To explain and understand the specific features of the ground motions in Mexico City, I.e. so called beach and echo phenomena, theoretical analyses with assumed geological models are conducted.
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