Document Type : Original Research Paper

Authors

1 Ph.D. Student, Department of Geology, Faculty of Basic Science, North Tehran Branch, Islamic Azad University, Tehran, Iran

2 Professor, Department of Geology, Faculty of Basic Science, North Tehran Branch, Islamic Azad University, Tehran, Iran

3 Assistant Professor, Department of Civil Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran

4 Assosiate Professor, Research Institute for Earth Sciences, Geological Survey of Iran, Tehran, Iran

5 Assosiate Professor, Department of Geology, Faculty of Basic Science, North Tehran Branch, Islamic Azad University, Tehran, Iran

Abstract

The occurrence of historical and instrumental earthquakes near the North Tabriz Fault in NW Iran is an evidence for seismic activity of this fault, which recorded historical earthquakes with magnitudes greater than 7. In this study, existing experimental relations, historical seismicity, and the fault geometry were used to define a Mw 7.7 earthquake scenario. The stochastic finite fault modeling based on a dynamic corner frequency shows a good agreement between maximum estimated acceleration and common attenuation patterns. The derived shake map illustrates that the stongest ground motion is observed in the NW, N and NE of the tabriz city along a zone parallel to the fault. In addition, the maximum acceleration derived from simulation is almost equal to that computed from attenuation patterns.

Keywords


References
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