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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Probabilistic seismic hazard maps for Sinai Peninsula, Egypt
Journal of Geophysics and Engineering, Volume 6, No. 3, Year 2009
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Description
Sinai experienced the largest Egyptian earthquake with moment magnitude (Mw) 7.2 in 1995 in the Gulf of Aqaba, 350 km from Cairo. It is characterized by the presence of many tourist projects in addition to different natural resources. The aim of the current study is to present, for the first time, the probabilistic spectral hazard maps for Sinai. Revised earthquake catalogues for Sinai and its surroundings, from 112 BC to 2006 AD with magnitude equal or greater than 3.0, are used to calculate seismic hazard in the region of interest between 27°N and 31.5°N and 32°E and 36°E. We declustered these catalogues to include only independent events. The catalogues were tested for the completeness of different magnitude ranges. 28 seismic source zones are used to define the seismicity. The recurrence rates and the maximum earthquakes across these zones were also determined from these modified catalogues. Strong ground motion relations for rock are used to produce 5% damped spectral acceleration values for four different periods (0.2, 0.5, 1.0 and 2.0 s) to define the uniform response spectra at each site (grid of 0.2° × 0.2° all over the area). Maps showing spectral acceleration values at 0.2, 0.5, 1.0 and 2.0 s periods as well as peak ground acceleration (PGA) for the return period of 475 years (equivalent to 90% probability on non-exceedence in 50 years) are presented. In addition, Uniform Hazard Spectra (UHS) at 25 different periods for the four main cities (Hurghda, Sharm El-Sheikh, Nuweibaa and Suez) are graphed. The highest hazard is found in the Gulf of Aqaba with maximum spectral accelerations 356 cm s-2 at a period of 0.22 s for a return period of 475 years. © 2009 Nanjing Institute of Geophysical Prospecting.
Authors & Co-Authors
Deif, A.
Egypt, Helwan
National Research Institute of Astronomy and Geophysics, Cairo
Abou Elenean, Kamal M.
Egypt, Helwan
National Research Institute of Astronomy and Geophysics, Cairo
El-Hadidy, Mahmoud S.
Egypt, Helwan
National Research Institute of Astronomy and Geophysics, Cairo
Tealeb, Ali A.
Egypt, Helwan
National Research Institute of Astronomy and Geophysics, Cairo
Mohamed, Abuo Amin
Egypt, Helwan
National Research Institute of Astronomy and Geophysics, Cairo
Statistics
Citations: 39
Authors: 5
Affiliations: 1
Identifiers
Doi:
10.1088/1742-2132/6/3/008
ISSN:
17422132
Research Areas
Environmental
Study Locations
Egypt