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In spite of the fact that great
Cairo region is very important for future development, the
scope of this study is to provide a better understanding of
seismotectonic set-up in and around Cairo. Therefore, the
magnitudes of events during the time period from 1900 to
2012 were statistically treated to evaluate the b-values as
a measuring of tectonic parameter. Isoenergy contour maps
and 3D representations for these events were computed and
constructed. Seismic trends of this area were deduced from
isoenergy contour maps and focal mechanism solutions in
addition to the tectonic trends from potential field data.
The distribution of energy release and b-values indicate
that the eastern side of the study area is more active than
the western side. Results of tectonic setting, energy
release distributions, focal mechanism solution and
potential field data were compared to throw a more light on
the seismotectonic characterization. It concluded that the
major trends affecting the study area are ENE-WSW, WNW-ESE
and E-W.
Keywords: Seismic Trends, Focal Mechanism, Energy Release,
b-Value. Potential Field, Cairo, Egypt
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