Seismic risk analysis of western Arabia |
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| Institution: | 1. Department of Geology & Geophysics, King Saud University, Riyadh 11451, Saudi Arabia;2. National Research Institute of Astronomy and Geophysics, 11421 Helwan, Cairo, Egypt;3. Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia;1. Geology Department, Faculty of Science, Al-Azhar University, Assiut Branch 71524, Egypt;2. Geology Department, Faculty of Science, Assiut University, Assiut 71516, Egypt;3. Geology Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt;1. Centro de Sismología y Volcanología de Occidente (SisVOc), Universidad de Guadalajara, Av. Universidad 293, Del. Ixtapa, 48280 Puerto Vallarta, Jalisco, Mexico;2. Department of Geology, Faculty of Science, Assiut University, 71516 Assiut, Egypt;3. National Research Institute of Astronomy and Geophysics (NRIAG), 11421 Helwan, Cairo, Egypt;4. King Abdulaziz University, Geohazard Research Centre, 80206, Jeddah 21589, Saudi Arabia |
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| Abstract: | Based on the seismicity and tectonics of the western part of the Arabian Peninsula, a set of potential earthquake sources are identified and the relationships between magnitude and frequency of occurrence are determined. Using available attenuation laws,the individual influences of potential sources are integrated into the probability distribution of maximum annual intensity and peak ground acceleration.The results are presented in the form of seismic risk maps for various return periods, cumulative distribution functions and intensity zone graphs. Based on the results of this study, it is concluded that the seismic hazard potential for the central region is moderate but it is high for the northern and southern provinces. |
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