Stress field in the central and northern parts of the Gulf of Suez area, Egypt from earthquake fault plane solutions

Morsy, Mamdouh A.; Hussein, H. M.; Elenean, K. M. Abou; El-Hady, Sherif M.

doi:10.1016/j.jafrearsci.2011.03.006

Cited by 20 publications

(2 citation statements)

References 32 publications

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“…The Egyptian National Seismological Network (ENSN) recorded this earthquake and estimated its magnitude as (M L 5.1) and its focal depth as 21 km. It is worth mentioning that this event is the largest instrumental earthquake to be recorded in middle and northern parts of Gulf of Suez after the M L 4.8 earthquake of 12 June 1983 (Morsy et al, 2011). No casualties were caused by the 1 June 2013 earthquake; however, minor damage to prop-erty was observed near the epicenter.…”

Section: Introductionmentioning

confidence: 88%

Simulation of strong ground motion parameters of the 1 June 2013 Gulf of Suez earthquake, Egypt

Toni

2017

NRIAG Journal of Astronomy and Geophysics

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This article aims to simulate the ground motion parameters of the moderate magnitude (M L 5.1) June 1, 2013 Gulf of Suez earthquake, which represents the largest instrumental earthquake to be recorded in the middle part of the Gulf of Suez up to now. This event was felt in all cities located on both sides of the Gulf of Suez, with minor damage to property near the epicenter; however, no casualties were observed. The stochastic technique with the site-dependent spectral model is used to simulate the strong ground motion parameters of this earthquake in the cities located at the western side of the Gulf of Suez and north Red Sea namely: Suez, Ain Sokhna, Zafarana, Ras Gharib, and Hurghada. The presence of many tourist resorts and the increase in land use planning in the considered cities represent the motivation of the current study. The simulated parameters comprise the Peak Ground Acceleration (PGA), Peak Ground Velocity (PGV), and Peak Ground Displacement (PGD), in addition to Pseudo Spectral Acceleration (PSA). The model developed for ground motion simulation is validated by using the recordings of three accelerographs installed around the epicenter of the investigated earthquake. Depending on the site effect that has been determined in the investigated areas by using geotechnical data (e.g., shear wave velocities and microtremor recordings), the investigated areas are classified into two zones (A and B). Zone A is characterized by higher site amplification than Zone B. The ground motion parameters are simulated at each zone in the considered areas. The results reveal that the highest values of PGA, PGV, and PGD are observed at Ras Gharib city (epicentral distance $ 11 km) as 67 cm/s 2 , 2.53 cm/s, and 0.45 cm respectively for Zone A, and as 26.5 cm/s 2 , 1.0 cm/s, and 0.2 cm respectively for Zone B, while the lowest values of PGA, PGV, and PGD are observed at Suez city (epicentral distance $ 190 km) as 3.0 cm/s 2 , 0.2 cm/s, and 0.05 cm/s respectively for Zone A, and as 1.3 cm/s 2 , 0.1 cm/s, and 0.024 cm respectively for Zone B. Also the highest PSA values are observed in Ras Gharib city as 200 cm/s 2 and 78 cm/s 2 for Zone A and Zone B respectively, while the lowest PSA values are observed in Suez city as 7 cm/s 2 and

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Section: Introductionmentioning

confidence: 88%

Simulation of strong ground motion parameters of the 1 June 2013 Gulf of Suez earthquake, Egypt

Toni

2017

NRIAG Journal of Astronomy and Geophysics

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“…The Gulf of Suez in northeastern part of Egypt has been reported to experience seismicity of low to intermediate magnitudes (Toni et al 2016). Higher activities of earthquake were majorly reported around the southern part of the Gulf of Suez, attributed to triple junction and relative plate movements of the Arabian plate, African plate and Sinai-sub plate (Hussein et al 2006;Morsy et al 2011). The most recent earthquakes in The Gulf of Suez are a 4.6 magnitude quake which occurred in the southern part of the region in 2012; and two other earthquakes of magnitudes 4.1 and 5.1 which were reported to have occurred at the central part of the region (the Gulf of Suez) in January and June 2013, respectively (Toni et al 2016).…”

Section: North Africamentioning

confidence: 99%

Critical evaluation of seismic activities in Africa and curtailment policies – a review

Alaneme

Okotete

2018

Geoenviron Disasters

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The present paper discusses the seismicity of Africa and the need for the implementation of vibration control strategies in Africa, erroneously considered as aseismic. The review catalogues information on the seismicity of Africa, attesting that virtually every region in the African continent has come under the threat of some form of seismic event. The magnitudes and intensities of these seismic activities has resulted in devastations, including: loss of lives, building and civil structures collapse, displacements of people, economic losses, psychological traumatization, and grave fear. Evidences available show that most of the devastations are accentuated by tremor induced collapse of buildings and civil structures. It is thus imperative for substantive, simply implementable, and sustainable proactive measures for controlling the threats of seismic events be discussed within the African context. Current mitigation strategies in Africa include the establishment of seismic codes which govern the design of civil structures. The challenge to the implementation and the effectiveness of the existing African seismic codes was briefly discussed, and new measures which can reduce seismic risks were also highlighted The submissions of the paper is envisaged will create awareness on the budding seismic activities in Africa and awaken relevant authorities on the need for timely and practicable mitigation strategies to be in place to avert the attendant catastrophes associated with seismic occurrences.

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Seismicity and Seismotectonic of North Africa: An Updated Review

Toni,

Badreldin,

El Fellah

2024

Regional Geology Reviews

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Stress field in the central and northern parts of the Gulf of Suez area, Egypt from earthquake fault plane solutions

Cited by 20 publications

References 32 publications

Simulation of strong ground motion parameters of the 1 June 2013 Gulf of Suez earthquake, Egypt

Simulation of strong ground motion parameters of the 1 June 2013 Gulf of Suez earthquake, Egypt

Critical evaluation of seismic activities in Africa and curtailment policies – a review

Seismicity and Seismotectonic of North Africa: An Updated Review

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