Present-day tectonic stress regime in Egypt and surrounding area based on inversion of earthquake focal mechanisms

Hussein, H. M.; Elenean, K. M. Abou; Marzouk, I.; Korrat, Ibrahim; El-Nader, I.F. Abu; Ghazala, Hosni; Gabry, Mohamed El

doi:10.1016/j.jafrearsci.2012.12.002

Cited by 61 publications

(32 citation statements)

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“…Some of the more important works include those of Kamel and El Sokkary (1996) who developed fracture density contour maps and rose diagrams of the fracture trends and fault systems; and Sadek et al (2000), who developed a GIS-based earthquake damage analysis system. Issawy et al (2010) have applied high resolution microgravity measurements for the detection of near-surface caves in southeastern Cairo, and Hussein et al (2013) have performed stress field inversion in Egypt on the basis of 219 focal mechanism solutions in the period from 1955 to 2007. Zahran et al (2013) have compiled output from gravity, geodetic and seismic analysis on the geodynamic regime of the seismo-active region of Cairo to delineate the crustal stress and strain fields; and Raheem (2014) has performed parametric studies on buildings pounding response.…”

Section: Case Study 4: the Dahshur Earthquake Of 1992mentioning

confidence: 99%

Urban geology of African megacities

Davies

2015

Journal of African Earth Sciences

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Section: Case Study 4: the Dahshur Earthquake Of 1992mentioning

confidence: 99%

Urban geology of African megacities

Davies

2015

Journal of African Earth Sciences

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“…It is also called Kalabsha earthquake, since the epicenter was located close to Kalabsha fault west of the Lake. Most of seismic activities around Lake Nasser is concentrated along the intersection between active East-West Kalabsha and Sayal faults with the North-South Kurkur and Khor El-Ramal faults, West of the Lake (Hussein et al, 2013;Telesca et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Crustal deformation of the southeastern corner of Egypt derived from geodetic data

Saleh

Sakr

Rashwan

et al. 2018

NRIAG Journal of Astronomy and Geophysics

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The proper evaluation of the crustal deformation is important prior to any strategic projects. Due to the importance of the southeastern corner of Egypt which contains many mineral resources beside a lot of attractive tourism places, we have selected this area to estimate the recent crustal movements and its relation to earthquake activities within this region using the available GPS and seismicity measurements. We used 19 permanent and campaign GPS sites in and around the study area that cover the time span 2007-2014. Most of these sites are related to Abu-Dabbab and Lake Nasser networks. The obtained GPS results show that there is an observed deformation in Abu-Dabbab area, along Red Sea coast, which characterized by a seismic cluster. The localization of the observed movements at Abu-Dabbab area may indicate that the deformation is related to a local structure within the study area. On the other hand, GPS sites located East of Lake Nasser and the permanent GPS sites in southern Egypt do not show any significant velocity field and it seems to be stable compared to Abu-Dabbab region. Even with the non-uniform spatial resolution of the GPS sites used in this work, our results are in good agreement with the seismicity of the study area.

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“…Knowledge of stress field in the hydrocarbon industry can be used to foresee borehole stability problems, optimize reservoir management through tectonic modeling in combination with other datasets, and predict tectonic fractures (Ding et al 1998;Sperner et al 2003;Smart et al 2009;Ju et al 2013bJu et al , 2014bJu et al , 2015Ju and Sun 2016). Thus, investigation into the crustal tectonic stress is a key point in Earth geotectonic studies (Zoback 1992;Hou et al 2006;Lunina and Gladkov 2007;Heidbach et al 2010;Ju et al 2012Ju et al , 2013aJu et al , 2014aHussein et al 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Generally, formal inversion of focal mechanism data can reveal the present-day stress field and geodynamic regime (Zoback 1992;Fuchs and Muller 2001;Cortes and Angelier 2005;Delvaux and Barth 2010;Naimi-Ghassabian et al 2015). Focal mechanism solutions are highly valuable as they can offer reliable stress information at different depths in the lithosphere (Tingay et al 2010;Hussein et al 2013). Observation of the present-day stress field and regime in the crust represents an important task for understanding the driving forces for the current deformation and the style of deformation itself (Hussein et al 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Focal mechanism solutions are highly valuable as they can offer reliable stress information at different depths in the lithosphere (Tingay et al 2010;Hussein et al 2013). Observation of the present-day stress field and regime in the crust represents an important task for understanding the driving forces for the current deformation and the style of deformation itself (Hussein et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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Characteristics of global strong earthquakes and their implications for the present-day stress pattern

Sun

Luo

2017

J Earth Syst Sci

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Earthquakes occurred on the surface of the Earth contain comprehensive and abundant geodynamic connotations, and can serve as important sources for describing the present-day stress field and regime. An important advantage of the earthquake focal mechanism solution is the ability to obtain the stress pattern information at depth in the lithosphere. During the past several decades, an increasing number of focal mechanisms were available for estimating the present-day stress field and regime. In the present study, altogether 553 focal mechanism data ranging from the year 1976 to 2017 with Mw ≥7.0 were compiled in the Global/Harvard centroid moment tensor (CMT) catalogue, the characteristics of global strong earthquakes and the present-day stress pattern were analyzed based on these data. The majority of global strong earthquakes are located around the plate boundaries, shallow-focus, and thrust faulting (TF) regime. We grouped 518 of them into 12 regions (Boxes) based on their geographical proximity and tectonic setting. For each box, the present-day stress field and regime were obtained by formal stress inversion. The results indicated that the maximum horizontal principal stress direction was ∼N-Strending in western North America continent and southwestern Indonesia, ∼NNE-SSW-trending in western Middle America and central Asia, ∼NE-SW in southeastern South America continent and northeastern Australia, ∼NEE-SWW-trending in western South America continent and southeastern Asia, ∼E-W-trending in southeastern Australia, and ∼NW-SE-trending in eastern Asia. The results can provide additional constraints to the driving forces and geodynamic models, allowing them to explain the current plate interactions and crustal tectonic complexities better.

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Present-day tectonic stress regime in Egypt and surrounding area based on inversion of earthquake focal mechanisms

Cited by 61 publications

References 61 publications

Urban geology of African megacities

Urban geology of African megacities

Crustal deformation of the southeastern corner of Egypt derived from geodetic data

Characteristics of global strong earthquakes and their implications for the present-day stress pattern

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