Study of seismic activity of the Dead Sea Fault System (DSFS) from 1981 to 2020

Abstract

This research aims to study the seismic activity of the Dead Sea Fault System using recent seismic recordings from 1981 to 2020 of earthquakes of local magnitude ML≥3, and it was found that these earthquakes are mainly spread in the southern part of the study area (area The Sea of ​​Galilee fault and the Yammouna and Sargaya faults) and in the northern part (the Lattakia Kilis fault area and the Cypriot arc), while in the central part of the study area (the Masyaf and al-Ghab fault area) it was found that the number of earthquakes is very small and it is in a state of relative unactive in terms of seismicity during the study period The depths of the vast majority of earthquakes ranged from 1 to 20 km and there were only 7 earthquakes of ML ≥ 5, and the Gutenberg - Richter coefficients were obtained from the relationship LogN (M) = -0.878 M + 5.713. It was also found that the most active faults in the study area are the Yammouna fault and the Lattakia Kilis fault.

The focal mechanism for earthquakes of magnitude ML≥3.6 was obtained from data from Harvard University and the International Center for Seismology, and the focal mechanism for earthquakes of magnitude ML≤3.6 was calculated from the data of the national digital network in Syria recorded on at least 6 stations, and 9 reverse faults were obtained, 8 side offset faults, 7 normal faults.