Abstract
An area of paleoseismic deformations of seismogravitation and seismotectonic genesis that trace the epicentral zones of ancient earthquakes, is revealed for the first time in the Tossor river basin, the southern Issyk Kul region. The C14 age is the 9th century AD for the recent earthquake and middle-early Holocene for the earlier seismic event. High seismic activity of the Pre-Terskey Border Fault in the south of the Issyk Kul Lake depression is recorded. An upslope-facing scarp and many significant rockslides in the Tossor river basin mark an epicentral zone of strong Holocene earthquakes, which is not consistent with instrumental seismic data and was not taken into account when compiling the latest seismic zoning map of the Kyrgyz Republic.
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Original Russian Text © A.M. Korzhenkov, S.V. Abdieva, J. Mazeika, A.M. Muraliev, A.B. Fortuna, T.A. Charimov, A.S. Yudakhin, 2014, published in Voprosy Inzhenernoi Seismologii, 2014, Vol. 41, No. 2, pp. 37–47.
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Korzhenkov, A.M., Abdieva, S.V., Mazeika, J. et al. On unknown strong Holocene earthquakes in the south of the Issyk Kul depression, Tien Shan. Seism. Instr. 51, 157–165 (2015). https://doi.org/10.3103/S0747923915020048
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DOI: https://doi.org/10.3103/S0747923915020048