Eastern Iran and Lut block is one of the seismic areas of Iran, where many earthquakes have occurred so far And its faults have a high seismic power, so that they can cause earthquakes with a magnitude between 6 and 7 . Studying stresses is one of the best ways to understand the tectonics and tectonic structures of a region. Among these structures, faults are very important as sources of earthquakes, and the action of stress on them is the main cause of earthquakes. By using the data of the focal mechanism of earthquakes and checking the stress, it is possible to evaluate the current tectonic regime.
With the method of inversion of the mechanism of earthquakes in each region, the stress tensor of that region can be estimated with acceptable accuracy. The strains caused by small and large earthquakes can lead to permanent deformation near the source of the earthquake and changes in the amount of sterine stored in the rocks.
To investigate the inversion of the focal mechanism, we first collected the focal mechanism data of the earthquakes in the study area located in the east of Iran (adjacent to Dasht Lut) from the GCMT site and removed aftershocks and foreshocks using the ZMAP program. Then, the studied area was divided into 14 areas and with the help of Wintensor software, we obtained the direction of maximum and minimum local stress and compared it with global stress data. In most regions, the direction of stress follows the direction of global stress, which indicates the dominance of the pressure caused by the Arabian plate. However, in Hajdak, Kohbanan and Lekarkoh areas, it seems that the effect of the movement of the Makran structure is greater than in other areas and has caused the stress to be oriented north-south, and in the areas of Mahan and South Lut, the stress is almost east-west, which is the role of the factors Local as well as large earthquakes that have occurred have not been unaffected. Therefore, in our study area, the eastern part is mostly infl