Seismic hazard assessment in Aswan, Egypt

Deif, Ahmed; Hamed, H; Ibrahim, Hamza A.; Elenean, K. M. Abou; El-Amin, E. M.

doi:10.1088/1742-2132/8/4/006

Cited by 36 publications

(25 citation statements)

References 33 publications

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“…More recently, new deterministic and probabilistic seismic-hazard studies have been carried out (e.g., Riad et al, 2000;El-Sayed et al, 2001;El-Hefnawy et al, 2006;FatHelbary et al, 2008;Deif et al, 2009Deif et al, , 2011Mohamed et al, 2012). Among these assessments the study carried out by Riad et al (2000) estimated the PGA values for the whole Egyptian territory that was considered in the Global Seismic Hazard Assessment Program (GSHAP, 1999) and later in the current Egyptian building code (ECP-201, 2011).…”

Section: Previous Assessmentsmentioning

confidence: 99%

“…Active fault data are very scarce in Egypt. In spite of the definition of some faults (Kalabsha, Seiyal, Gebel El-Barqa, Khur El-Ramla, Kurkur, Abu Dirwa, and Dabud faults) in southern Egypt (around Nasser's Lake) by Woodward Clyde Consultants (1985; see Data and Resources) and Deif et al (2011), we have not included them in the final seismic-hazard computation. This is because there are no available data about the slip rate or the paleoseismological history of these faults, thus we prefer to use only an area source model (Sawires et al, 2015;Sawires, Peláez, Ibrahim, and Fat-Helbary, 2016).…”

Section: Seismic Source Modelmentioning

confidence: 99%

“…The M max was also estimated for mostly seismic sources using the RobsonWhitlock-Cooke procedure (Robson and Whitlock, 1964;Cooke, 1979;Kijko and Singh, 2011). The procedure considers that if the magnitudes of the earthquakes in a specific seismic source are arranged in ascending order, namely m 1 ≤ m 2 ≤ ::::: ≤ m n−1 ≤ m obs max , then the estimate of M max together with its variance can be computed from the following equations: This computed parameter (considering both the historical and instrumental earthquakes) was crosschecked against the available paleoseismic data (for seismic sources along the Gulf of Aqaba-Dead Sea Transform) addressed in Deif et al (2009Deif et al ( , 2011. All this information is included in the works by Sawires et al (2015) and Sawires, Peláez, Ibrahim, and FatHelbary (2016).…”

Section: Seismic Source Modelmentioning

confidence: 99%

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Updated Probabilistic Seismic‐Hazard Values for Egypt

Sawires

Peláez

Fat-Helbary³

et al. 2016

Bulletin of the Seismological Society of America

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Seismic hazard in terms of mean peak ground acceleration (PGA) and spectral acceleration (SA) values has been computed for Egypt using both historical and instrumental earthquake data. For this purpose, an updated earthquake catalog, spanning the time period from 2200 B.C. to 2013, has been compiled for Egypt as well as its surrounding regions and is prepared to be used in a new probabilistic seismichazard assessment of Egypt. The earthquakes sizes were unified in terms of the moment magnitude scale. A new seismic source model for the seismic activity in and around Egypt, consisting of a total of 88 seismic zones (for shallow-and intermediate-depth seismicity), was considered in this new assessment. The seismicity parameters have been specifically computed for 35 seismic sources covering the Egyptian territory and the Eastern Mediterranean region. A logic-tree design was set up to consider the epistemic uncertainty in the Gutenberg-Richter b-value, maximum possible magnitude (M max ), and the selected ground-motion prediction equations. Seismichazard computations for rock-site conditions with 10% and 5% probability of exceedance in 50 years were carried out. In addition, uniform hazard spectra for twelve, among the most important and populated cities in Egypt, are computed and compared with the most recent Egyptian building code values. It is interesting to highlight that the maximum hazard values are observed at the Gulf of Aqaba region, specifically around the epicentral location of the biggest Egyptian recorded earthquake of 22 November 1995 (M w 7.2) Aqaba earthquake. The obtained seismic-hazard values for Nuweiba city (located in this region) for mean PGA and SA (0.1 s) are 0:29g and 0:74g, respectively, for a return period of 475 years.

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Section: Previous Assessmentsmentioning

confidence: 99%

Section: Seismic Source Modelmentioning

confidence: 99%

Section: Seismic Source Modelmentioning

confidence: 99%

See 1 more Smart Citation

Updated Probabilistic Seismic‐Hazard Values for Egypt

Sawires

Peláez

Fat-Helbary³

et al. 2016

Bulletin of the Seismological Society of America

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“…The second used model, which consisting of 72 sources, is the one proposed by El-Hadidy (2012). He compiled and integrated a new seismic zoning map for Egypt and its surroundings, which was mainly based on seismic sources from previous studies (Abdel Rahman et al 2008;Deif et al 2011;Papaioannou and Papazachos 2000).…”

Section: Seismic Source Modelmentioning

confidence: 99%

A review of seismic hazard assessment studies and hazard description in the building codes for Egypt

et al. 2015

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Reduction of damage in earthquake-prone areas requires modern building codes that should be continuously updated to reflect the improvement in our understanding of the physical effects of earthquake ground shaking on buildings and the increase in the quality and amount of seismological and tectonic studies, among other factors. This work reviews the published seismic hazard assessments available for Egypt as well as the seismic actions included in the building codes, in order to show the state-of-the-art of the seismic hazard assessment studies for the country. The review includes the history and development of seismic hazard assessments and the adoption of seismic building codes in Egypt. All the previous studies were analyzed in order to conclude that a new seismic hazard assessment according to the state-of-the-art is desirable, as well as a change in the hazard description for the actual Egyptian building code.

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“…The probabilistic method, on the other hand, applies probabilistic model to predict the largest future earthquake. Deif and Khalil [3] applied both techniques and yielded that the credible earthquake for the region is the Cairo earthquake that occurred on 12 th October, 1992. The magnitude of the event was 5.8, thus according to the deterministic approach the magnitude of the credible earthquake will be 5.8 + 0.5, which equals 6.3 in magnitudes.…”

Section: A B Cmentioning

confidence: 99%

SEISMOLOGICAL INVESTIGATION AT MEKAAD RADWAN OTTOMAN PERIOD- CAIRO-EGYPT (a)

Fouad

Mohamed

Salah

et al. 2015

Egyptian Journal of Archaeological and Restoration Studies

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Earthquakes are generally considered the most dangerous factor affecting the historical buildings. The present study is focusing on the determination of the effects of earthquake activities on the historical site of Mekaad Radwan Compound near outskirt of old Fatimid Cairo, the area of Bab Zwiela "Bawabat El Metwali". The analysis of the seismicity data around the site under investigation is carried out to define the design or credible earthquake.In order to achieve the scientific, practical works; seismotectonics, Simulation of earthquake ground motion in the site and site response are studied. The deterministic and probabilistic approaches were carried out showing that the credible earthquake may be located at the same seismic zone of Cairo 1992 earthquake.

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Seismic hazard assessment in Aswan, Egypt

Cited by 36 publications

References 33 publications

Updated Probabilistic Seismic‐Hazard Values for Egypt

Updated Probabilistic Seismic‐Hazard Values for Egypt

A review of seismic hazard assessment studies and hazard description in the building codes for Egypt

SEISMOLOGICAL INVESTIGATION AT MEKAAD RADWAN OTTOMAN PERIOD- CAIRO-EGYPT (a)

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