Abstract
One of the most important seismic zone in Iran is Zagros suture zone.The study of the focal mechanism is very important in understanding the seismotectonic characteristics. In this paper, using focal mechanisms obtained from the earthquakes during 2000-2020, we study the seismotectonic characteristics of Zagros region. First, the focal mechanisms are extracted from the CMT catalogue. The range of magnitudes are from 4.5 to 7 in moment magnitude scale. Most of earthquakes are shallow and about 70% have depths deep to 30 km. We classified the focal mechanisms in accordance to rupture type (reverse, strike-slip, and normal) and in terms of frequency of each type.