Source model and the macroseismic effect of the 1991 Racha earthquake |
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Authors: | R E Tatevossian Zh Ya Aptekman |
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Institution: | 1.Schmidt Institute of Physics of the Earth,Russian Academy of Sciences,Moscow,Russia |
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Abstract: | Coherency of the source model of the 1991 Racha earthquake in the Greater Caucasus with different data types is analyzed.
Authors, when interpreting macroseismic data, accept complex nature of macroseismic effects generation but, nevertheless,
consider that its spatial distribution follows certain regularities. First time in the practice, method of evaluation of the
mecroseismic material completeness is proposed based on the intensity attenuation along with distance. It is demonstrated
the character of macroseismic intensity attenuation can be used for verification of the source model elements constructed
based on other seismological data. Dependence of the macroseismic effect distribution on azimuth in near field of the 1991
Racha earthquake is recognized. |
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