Ground motion prediction from nearest seismogenic zones in and around Greater Cairo Area, Egypt

This paper reviews the likely source characteristics, focal source mechanism and fault patterns of the nearest effective seismogenic zones to Greater Cairo Area. Furthermore, <i>M</i><sub>max</sub> and ground accelerations related to the effect...

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Main Author: Abd El-Aziz Khairy Abd El-Aal
Format: Article
Language:English
Published: Copernicus Publications 2010-07-01
Series:Natural Hazards and Earth System Sciences
Online Access:http://www.nat-hazards-earth-syst-sci.net/10/1495/2010/nhess-10-1495-2010.pdf
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author Abd El-Aziz Khairy Abd El-Aal
author_facet Abd El-Aziz Khairy Abd El-Aal
author_sort Abd El-Aziz Khairy Abd El-Aal
collection DOAJ
description This paper reviews the likely source characteristics, focal source mechanism and fault patterns of the nearest effective seismogenic zones to Greater Cairo Area. Furthermore, <i>M</i><sub>max</sub> and ground accelerations related to the effective seismic events expected in future from those seismogenic zones are well evaluated. For this purpose, the digital waveform of earthquakes than <i>M</i><sub>L</sub>=3 that occurred in and around Greater Cairo Area from 1997 to 2008 which have been recorded by the Egyptian National Seismological Network, are used to study source characterization, focal mechanism and fault pattern of the seismogenic zones around Greater Cairo Area. The ground motions are predicted from seismogenic zones to assess seismic hazard in the northeastern part of Greater Cairo, where three effective seismogenic zones, namely Abou Zabul, southeast Cairo trend and Dahshour area, have the largest effect to the Greater Cairo Area. The <i>M</i><sub>max</sub> was determined, based upon an empirical relationship between the seismic moment and the rupture length of the fault during the earthquake. The estimated <i>M</i><sub>max</sub> expected from Abou Zabul, southeast Cairo trend, Dahshour seismic sources are of <i>M</i><sub>w</sub> magnitudes equal to 5.4, 5.1, and 6.5, respectively. The predominant fundamental frequency and soil amplification characteristics at the area were obtained using boreholes data and in-situ ambient noise measurement.
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spelling doaj.art-a0a7950cce0e4023b8c7006619976d952022-12-22T02:58:21ZengCopernicus PublicationsNatural Hazards and Earth System Sciences1561-86331684-99812010-07-011071495151110.5194/nhess-10-1495-2010Ground motion prediction from nearest seismogenic zones in and around Greater Cairo Area, EgyptAbd El-Aziz Khairy Abd El-AalThis paper reviews the likely source characteristics, focal source mechanism and fault patterns of the nearest effective seismogenic zones to Greater Cairo Area. Furthermore, <i>M</i><sub>max</sub> and ground accelerations related to the effective seismic events expected in future from those seismogenic zones are well evaluated. For this purpose, the digital waveform of earthquakes than <i>M</i><sub>L</sub>=3 that occurred in and around Greater Cairo Area from 1997 to 2008 which have been recorded by the Egyptian National Seismological Network, are used to study source characterization, focal mechanism and fault pattern of the seismogenic zones around Greater Cairo Area. The ground motions are predicted from seismogenic zones to assess seismic hazard in the northeastern part of Greater Cairo, where three effective seismogenic zones, namely Abou Zabul, southeast Cairo trend and Dahshour area, have the largest effect to the Greater Cairo Area. The <i>M</i><sub>max</sub> was determined, based upon an empirical relationship between the seismic moment and the rupture length of the fault during the earthquake. The estimated <i>M</i><sub>max</sub> expected from Abou Zabul, southeast Cairo trend, Dahshour seismic sources are of <i>M</i><sub>w</sub> magnitudes equal to 5.4, 5.1, and 6.5, respectively. The predominant fundamental frequency and soil amplification characteristics at the area were obtained using boreholes data and in-situ ambient noise measurement.http://www.nat-hazards-earth-syst-sci.net/10/1495/2010/nhess-10-1495-2010.pdf
spellingShingle Abd El-Aziz Khairy Abd El-Aal
Ground motion prediction from nearest seismogenic zones in and around Greater Cairo Area, Egypt
Natural Hazards and Earth System Sciences
title Ground motion prediction from nearest seismogenic zones in and around Greater Cairo Area, Egypt
title_full Ground motion prediction from nearest seismogenic zones in and around Greater Cairo Area, Egypt
title_fullStr Ground motion prediction from nearest seismogenic zones in and around Greater Cairo Area, Egypt
title_full_unstemmed Ground motion prediction from nearest seismogenic zones in and around Greater Cairo Area, Egypt
title_short Ground motion prediction from nearest seismogenic zones in and around Greater Cairo Area, Egypt
title_sort ground motion prediction from nearest seismogenic zones in and around greater cairo area egypt
url http://www.nat-hazards-earth-syst-sci.net/10/1495/2010/nhess-10-1495-2010.pdf
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