Abstract
Seismogeological investigations conducted in the Erzin-Agar-Dag fault zone (the Great Lakes segment) revealed traces of paleoseismogenic deformation. A detailed on-land investigation of the Tatur-Tolga and the Hairakan paleoseismic dislocations (PSD) found a dominant left lateral type of movement. The amplitudes of one-act displacements on the faults vary between 2–3 and 6–7 m (horizontal) and within 1.5–2 m (vertical). Along with the parameters of one-act horizontal movements of a few meters, we found an accumulated amplitude of strike-slip movement of a few tens to hundreds of meters. Based on the parameters of seismotectonic deformations, the magnitudes of the respective paleoearthquakes are inferred to have been 6.6 to 7.9.
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