Acta Geodaetica et Geophysica Hungarica

, Volume 33, Issue 2–4, pp 341–357 | Cite as

Earthquake Hazard Analysis in Northern Egypt

  • A. Badawy


Earthquake activity and seismic hazard analysis are important components of the seismic aspects for very essential structures such as major dams and nuclear power plants. Setting of nuclear power plants becomes of increasing important in northern Egypt with the commitment towards promoting nuclear electric generation. Therefore, the annual seismic hazard maps with non-exceedence probability of 80%, 85% and 90% are given. These maps show that northern Egypt is severely affected by earthquakes from potential sources around Sinai peninsula.

Three sites (Nile Delta, Cairo, and Ismailia region) have been chosen to estimate the earthquake hazard in more detailes to serve as a basic parameter to the safety factor of different projects in these regions. At each region six intensity levels have been examined. The annual expected number of earthquakes (N), the return periods (T), and the probability of occurrence (R) for each intensity level are given. These results indicate that the return period of an intensity VII in Nile Delta and Cairo regions is about 20 years with probability of 0.05%, while at Ismailia region is 10 years with 9% probability of occurrence. A seismic safety factor of intensity 8.5 should be considered in designing the vital projects in northern Egypt. On basis of the Trifunac and Brady (1975) formula, this earthquake intensity will generate seismic waves with vertical acceleration of 0.21g, and horizontal acceleration of 0.25g


earthquake hazard non-exceedence probability nuclear power plants return period safety factor 


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  1. Albert R N H 1987: Acta Geophys. Pol, 35, 343–363.Google Scholar
  2. Badawy A 1995: Acta Geod. Geoph. Hung., 30, 349–361.Google Scholar
  3. Badawy A 1996: Seismicity and kinematic evolution of the Sinai plate. Ph. D. Dissertation, Eötvös University, BudapestGoogle Scholar
  4. Badawy A, Mönus P 1995: J. Geodynamics, 20, 99–109.CrossRefGoogle Scholar
  5. Ben-Menahem A 1987: In: Ground motion and engineering seismology, A S Cakmak ed., Elsevier, Amsterdam, 77–88.Google Scholar
  6. Cornell C A 1968: Bull. Seismol. Soc. Am., 8, 1583–1605.Google Scholar
  7. Der Kiureghian A, Ang A H 1977: Bull. Seismol. Soc. Am., 67, 1173–1194.Google Scholar
  8. Elgamal A W, Amer M, Actalier K, Abul-Fadl A 1993: Engineering aspects of the October 12, 1992 Egyptian earthquake. Technical Report, NCEER93-0018.Google Scholar
  9. Esteva L 1970: In: Seismic design for nuclear power plants, R Y Hansen ed., Mass. Inst. Techn., Cambridge, 142–182.Google Scholar
  10. Ibrahim E M 1983: Bull Inter. Inst. Seismol. Earthq. Engn. Tokyo, 20, 63–78.Google Scholar
  11. Kebeasy R M 1971: Bull. Inter. Inst. Seismol. Earthq. Engn. Tokyo, 4, 1–16.Google Scholar
  12. Kebeasy R M 1990: In: Geology of Egypt, R Said ed., Rotterdam, 51–59.Google Scholar
  13. Kebeasy R M, Maamoun M, Albert R N H 1981: Acta Geophy. Pol., 29, 37–48.Google Scholar
  14. Maamoun M 1979: Bull. Helwan Inst. Astro. Geophy., 184, 12.Google Scholar
  15. Maamoun M, El-Khashab H M 1978: Bull. Helwan Inst. Astro. Geophy., 171, 24.Google Scholar
  16. McGuire R K 1976: Evaluation of earthquake risk to site. U. S. Geol. Survey, Open File Report, 76–67.Google Scholar
  17. McGuire R K 1994: EQRISK Fortran computer program for seismic risk analysis. U. S. Geol. Survey, Open File ReportGoogle Scholar
  18. Milne W C, Davenport A G 1969: Bull. Seismol. Soc. Am., 59, 729–759.Google Scholar
  19. Shah H, Mortgat C, Kiremidjian A S, Zguthy T 1975: A study of seismic risk of Nicaragua. The John A. Blume Earthq. Engn. Report No. 1, Stanford University, Stanford, CaliforniaGoogle Scholar
  20. Sobaih M E 1988: Regulations for Earthquake — Resistance Design of Building in Egypt. Proceeding of the Egyptian society for earthquake engineeringGoogle Scholar
  21. Sobaih M E, Kebeasy R M, Ahmed K A 1992: Development of seismic hazard maps for Egypt. Inter. J. Earthq. Engn., 2.Google Scholar
  22. Trifunac M D, Brady A G 1975: Bull. Seismol. Soc. Am., 65, 139–162.Google Scholar

Copyright information

© Akadémiai Kiadó 1998

Authors and Affiliations

  • A. Badawy
    • 1
  1. 1.Seismology Department National Research Institute of Astronomy and Geophysics HelwanCairoEgypt

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