STRIKE-SLIP FAULTS FROM PAST EARTHQUAKES IN THE EASTERN SAYAN REGION

Abstract

The new data presented indicate the need to revisit the estimates of the estimates of the earthquake potential of the Oka-Zhombolok fault zone, and improve seismic zoning maps for the eastern Sayan region. The indication that left-slip movement occurred repeatedly in the zone of this fault suggests that the fault had this type of kinematics (shear with a normal-fault component) throughout the neotectonic stage and make it possible to reconstruct more reliably and soundly the current tectonic stress field.