ON THE EVIDENCE OF THE YOUNGEST ACTIVITY OF THE NORTH TABRIZ FAULT AND THE SEISMICITY OF

The North Tabriz Fault is the principal structure by which the northern flank of the Tabriz border fold was raised above the alluvium of the Tabriz depression. A sec-tion of the North Tabriz Quaternary Fault between Tabriz and Sufian has been studied. At surface the fault plane is vertical and the southern block is downthrown by up to 40m. Historic (pre-1900) major earthquakes in Tabriz City are listed, together with those of the 20th century. Though undamaged since the late 19th century, the Tabriz region has experienced some major earthquakes in the past. 1