Project 1

Investigating the mechanism of the 2017 Ezgeleh earthquake (Kermanshah, Iran) with a magnitude of 7.3

Obtaining the focal mechanisms of the Ezguleh earthquake along with foreshocks and aftershocks in the interval of a few months before the main earthquake to a year after it. Then examining and analyzing the mechanisms by comparing them with the mechanisms of the region's faults. Finally, presenting tectonic interpretations of the earthquake

Project 2

Seismicity and surface geomorphology of Central Iran, (2023)

The surface geomorphology and earthquakes gives valuable information about earthquakes and the related faults. They play a very important role in tectonic studies of this region. Concentration of micro and moderate seismicity has also occurred mostly on Kuhbanan, Golbaf and Lakarkuh faults, rather than Dehshir, Anar and Rafsanjan faults. Investigation of the geomorphology of the area shows that several displacements in the layers and streams were seen, which occurred due to tectonic activities and active faults in Quaternary and earlier. In this research, using the P-wave first-arrivals in waveforms of the earthquakes, we determined the mechanism of the earthquakes in the east of Central Iran. We received the input data required for processing the mechanisms from the seismological stations of the National Seismological Center and the International Institute of Seismology and Earthquake Engineering of Iran. The time period of seismic data is from 2014 to 2021 and all earthquakes with a magnitude greater than 4.0 have been investigated to solve the mechanisms. All the processing of the mechanisms and earthquake relocation have been done on the platform of Seisan software. Number of 23 mechanisms have been obtained, most of them have right-lateral movement with a reverse component. Most of these mechanisms were correspond to the strike and mechanism of the nearest faults. Some earthquakes have occurred along the faults and the folds. The faults in the studied area have different strikes so that this difference which makes different angles with the stress direction, is the reason for the occurrence of earthquakes with different mechanisms. In central Iran, the earthquakes are occurred in a transpresseional area in response to the convergence of Zagros to the northeast direction.