Seismic Hazard Assessment for Tabuk City, NW Saudi Arabia

Ziyad I. Al-Besher

King Abdul-Aziz City for Science and Technology, Riyadh, Saudi Arabia.

DOI: 10.4236/gep.2013.13002                

Abstract

Tabuk city is located within the Red Sea and Gulf of Aqaba active tectonic environment where it has ex- perienced considerable earthquakes in the historical and instrumental period. Recently, Tabuk city is ex- pected to become one of the future economic communities in Saudi Arabia. Accordingly, assessment of seismic hazard of Tabuk city plays an important role to minimize earthquake damage and to anticipate the future safe development for the strategic projects. For this purposes, earthquake data were collected from local and regional data centers to construct earthquake catalogue. The earthquake source zones that affect Tabuk city, maximum magnitude and closest distance have been identified. The stochastic approach has been applied through this study for seismic hazard assessment in terms of peak ground acceleration and the response spectra. The results illustrated that, the maximum peak ground acceleration resulted from Tabuk source zone with moment magnitude (M_w) of 7.5. The calculated peak ground acceleration of218 cm/sec² at distance of10 KmforTabukCityat the bedrock. The response spectra of Pseudo-Spectral Acceleration (PSA) have been calculated at 5% of the critical damping with a value of470 cm/sec² at10 Kmdistance. The results of the present study are highly recommended to improve Saudi Building Code (SBC) for earthquake resistant design in Tabuk city.

Keywords

Tabuk City; Seismicity; Seismic Hazard Assessment; Response Spectra

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Al-damegh, Kh. S., Abou Elenean, K. M., Hussein, H. M., & Rodgers, A. J. (2009). Source mechanisms of the June 2004 Tabuk earthquake sequence, Eastern Red Sea margin, Kingdom of Saudi Arabia. J. Seismol, 13, 561-576. http://dx.doi.org/10.1007/s10950-008-9148-5
[2]	Al-Haddad, M., Siddiqi, G., Al-Zaid, R., Arafah, A., Necioglu, R., & Tukelli, N. (1994). A basis for evaluation of seismic hazard and design criteria for Saudi Arabia. Earthquake Spectra, 10. http://dx.doi.org/10.1193/1.1585773
[3]	Aki, K. (1967). Scaling law of seismic spectrum, J. Geophys. Res., 72, 1217-1231. http://dx.doi.org/10.1029/JZ072i004p01217
[4]	Ambraseys, N. N., Melville, C. P., & Adams, R. D. (1994). The seismicity of Egypt, Arabia and Red Sea. Cambridge University Press. http://dx.doi.org/10.1017/CBO9780511524912
[5]	Atkinson, G. M. (1993). Earthquake source spectra in eastern North America. Bull. Seism. Soc. Am., 83, 1778-1798.
[6]	Atkinson, G. M., & Boore, D. M. (1995). Ground motion relations for eastern North America. Bull. Seism. Soc. Am., 85, 17-30.
[7]	Bommer, J. J. (2000). Soil mechanics and engineering seismology (pp. 32-35). Master of Science Course, Imperial College of Science.
[8]	Boore, D. M. (1983). Stochastic simulation of high frequency ground motions based on seismological models of the radiated spectra. Bull. Seism. Soc. Am., 73, 1865-1894.
[9]	Boore, D. M., & Boatwright, J. (1984). Average body-wave radiation coefficients. Bull. Seism. Soc. Am., 74, 2035-2039.
[10]	Boore, D. M. (2003). Simulation of ground motion using the stochastic method. Pure and Applied Geophysics. http://dx.doi.org/10.1007/PL00012553
[11]	Brune, J. N. (1970). Tectonic stress and the spectra of seismic shear waves from earthquakes. J. Geophys Res., 75, 4997-5009. http://dx.doi.org/10.1029/JB075i026p04997
[12]	Brune, J. N. (1971). Correction. J. Geophys. Res., 76, 5002.
[13]	Gardner, J. K., & Knopoff, L. (1974). Is the sequence of earthquakes in Southern California, with aftershocks removed, Poissonian? Bull. Seismol. Soc. Am., 64, 1363-1367.
[14]	Grünthal, G., Bosse, Ch., Sellami, S., Mayer Rosa, D., & Giardini, D. (1999). Compilation of the GSHAP regional seismic hazard for Europe, Africa and the Middle East. Annali Di Geofisica, 42, 1215-1223.
[15]	Hanks, T. C. (1982). fmax. Bull. Seism. Soc. Am., 72, 1867-1879.
[16]	Reiter, L. (1990). Earthquake hazard analysis (254 p). Columbia University Press.