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Use of remote sensing methods for evaluation of seismic hazard by an example of the Andian seismic dislocations in Dagestan

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Abstract

Large-scale ancient seismic dislocations represented by faults, landslides, and rockavalanches were discovered by remote sensing on the southeastern slope of the Andian Ridge in Dagestan. As a result of the strongest of these land- and rock-slides, dammed Lake Kezenoy-Am was formed. Essential structural features of the ruptures provide undoubted evidence of the seismotectonic origin of the latter. The kinematics of the ruptures (left-lateral strike-slip and thrust) is in conformity with geological data on neotectonic displacements in the Andian deep-seated fault zone. The acquired data allow considering this deep fault to be a major seismogenic structure and confirm the presence of a potential earthquake focus with M max = 7.0 disclosed previously in the Andian fault zone.

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Correspondence to A. N. Ovsyuchenko.

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Original Russian Text © A.N. Ovsyuchenko, E.A. Rogozhin, N.V. Zaitseva, R.N. Lukashova, 2013, published in Voprosy Ingenernoy Seismologii, 2013, vol. 40, no. 1, pp. 47–54.

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Ovsyuchenko, A.N., Rogozhin, E.A., Zaitseva, N.V. et al. Use of remote sensing methods for evaluation of seismic hazard by an example of the Andian seismic dislocations in Dagestan. Seism. Instr. 50, 109–115 (2014). https://doi.org/10.3103/S074792391402008X

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  • DOI: https://doi.org/10.3103/S074792391402008X

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