The Zagros, due to its tectonic has a high level of seismicity. Ezgeleh earthquake, Mw 7.3 occurred in November 2017 in Ezgeleh, Kermanshah province, was one of the largest recent earthquakes in the Zagros, which resulted in many losses. In this study, some seismic events which occurred up to one year after this large-scale earthquake was calculated by ISOLA.
Most of the calculated focal mechanisms have a reverse mechanism in accordance with the active faults in the region. By studying the seismicity distribution and focal mechanisms in-depth, an area in which there is a possibility of hidden fault was introduced. The slope of one of the MFF segments was calculated (about 35°-55°) by considering the calculated focal mechanisms and investigating seismic distribution in depth. Our results suggest that the extension of Mountain Frontal Fault segments, which is not previously mentioned in geological maps, could possibly cause a significant percentage of seismicity in this area.