الفهرس 
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Abstract
The main purpose of this thesis is to develop predictive ground motion relations for strategic zones in north Egypt. In this study, the proposed strategic zones in north Egypt are selected as Cairo, ElGiza, ElFayoum, Alexandria, and Nile Delta provinces. These zones represent the highest population density in Egypt and the most hazardous zones, where the Nile deposits make a significant effect on the earthquake ground motions. The layout of this study is summarized as follows:chapter 1 is an introduction outline of the motivation and the purpose of this thesis. In addition, it reviews the seismicity and seismic zones of Egypt. chapter 2 introduces the basics of the stochastic simulation of ground motion method. It includes the essence of the method, integral measures of ground motion, obtaining ground motion in frequency and time domains. It also includes the limitations and improvements of the method. ?Chapter 3 shows the site response estimation for alluvial deposits. It includes mechanisms for ground motion amplification and site effect estimation methods. About 25 sites chosen of Cairo, ElGiza, ElFayoum, Alexandria, and Nile Delta provinces are studied. In chapter 4, the main objective is to develop predictive ground motion relationships. Simulation of groundmotions based on the theoretical stochastic method is conducted in detail at the Nile deposits sites of north Egypt. Response spectral amplitudes of acceleration (PSA) and velocity (PSV) (5 damping at frequencies from 0.5 to 20 Hz) and peak ground motions of acceleration (PGA) and velocity (PGV) are simulated for moment magnitude (M) from 4.0 to 6.5 at hypocentral distances ranged from R = 10 Km to R = 200 Km. Separate regressions are performed for peak ground acceleration (PGA), peak ground velocity (PGV), and response spectral velocity and acceleration, PSV and PSA respectively. Predictive ground motion relations in terms of moment magnitude and distance are developed for Nile deposits that the average shear wave velocity for the upper 30 meters of deposits is ranged from 170 to 300 m/s.finally the conclusions and the recommendations of this study that could be taken in consideration are summarized in chapter 5.