Amplitude curves ofP waves for the region of central Asia |
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| Authors: | Ji?í Vaněk Aleksander Tskhakaya Reviewer J Janský |
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| Institution: | (1) Geophysical Institute, Czechosl. Acad. Sci., Prague;(2) Geophysical Institute, GrSSR Acad. Sci., Tbilisi |
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| Abstract: | Summary The amplitude-distance curves of P waves, valid for the region of Central Asia, were derived in the distance range between 13° and 36° using observations of a network of eight Caucasian seismic stations. The curves are characterized by an anomalous increase of amplitudes between 13° and 20° followed by a large decrease of amplitudes in the distance range between 20° and 35°. Both the increase and decrease of amplitudes are interrupted by several local maxima. A comparison of the present amplitude curves with those derived for the regions of South-Eastern Europe and Asia Minor enabled us to correlate the individual local maxima of amplitude curves and to investigate the variation of their position due to the lateral inhomogeneity of the upper mantle structure in Eurasia.A. Tskhakaya deceased in 1970. |
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